Conferences related to Elliptic design

Back to Top

2021 26th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA )

ETFA focus is on the latest developments and new technologies in the field of industrial and factory automation. The conference aims to exchange ideas with both industry leaders and a variety of experienced researchers, developers, and practitioners from several industries, research institutes, and academia


2020 IEEE International Solid- State Circuits Conference - (ISSCC)

ISSCC is the foremost global forum for solid-state circuits and systems-on-a-chip. The Conference offers 5 days of technical papers and educational events related to integrated circuits, including analog, digital, data converters, memory, RF, communications, imagers, medical and MEMS ICs.


2020 IEEE International Symposium on Circuits and Systems (ISCAS)

The International Symposium on Circuits and Systems (ISCAS) is the flagship conference of the IEEE Circuits and Systems (CAS) Society and the world’s premier networking and exchange forum for researchers in the highly active fields of theory, design and implementation of circuits and systems. ISCAS2020 focuses on the deployment of CASS knowledge towards Society Grand Challenges and highlights the strong foundation in methodology and the integration of multidisciplinary approaches which are the distinctive features of CAS contributions. The worldwide CAS community is exploiting such CASS knowledge to change the way in which devices and circuits are understood, optimized, and leveraged in a variety of systems and applications.


2020 IEEE/MTT-S International Microwave Symposium (IMS)

The IEEE International Microwave Symposium (IMS) is the world s foremost conference covering the UHF, RF, wireless, microwave, millimeter-wave, terahertz, and optical frequencies; encompassing everything from basic technologies to components to systems including the latest RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation and more. The IMS includes technical and interactive sessions, exhibits, student competitions, panels, workshops, tutorials, and networking events.

  • 2036 IEEE/MTT-S International Microwave Symposium - IMS 2036

    The IEEE International Microwave Symposium (IMS) is the world s foremost conference covering the UHF, RF, wireless, microwave, millimeter-wave, terahertz, and optical frequencies; encompassing everything from basic technologies to components to systems including the latest RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation and more. The IMS includes technical and interactive sessions, exhibits, student competitions, panels, workshops, tutorials, and networking events.

  • 2031 IEEE/MTT-S International Microwave Symposium - IMS 2031

    The IEEE International Microwave Symposium (IMS) is the world s foremost conference covering the UHF, RF, wireless, microwave, millimeter-wave, terahertz, and optical frequencies; encompassing everything from basic technologies to components to systems including the latest RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation and more. The IMS includes technical and interactive sessions, exhibits, student competitions, panels, workshops, tutorials, and networking events.

  • 2029 IEEE/MTT-S International Microwave Symposium - IMS 2029

    The IEEE International Microwave Symposium (IMS) is the world s foremost conference covering the UHF, RF, wireless, microwave, millimeter-wave, terahertz, and optical frequencies; encompassing everything from basic technologies to components to systems including the latest RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation and more. The IMS includes technical and interactive sessions, exhibits, student competitions, panels, workshops, tutorials, and networking events.

  • 2026 IEEE/MTT-S International Microwave Symposium - IMS 2026

    The IEEE International Microwave Symposium (IMS) is the world s foremost conference covering the UHF, RF, wireless, microwave, millimeter-wave, terahertz, and optical frequencies; encompassing everything from basic technologies to components to systems including the latest RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation and more. The IMS includes technical and interactive sessions, exhibits, student competitions, panels, workshops, tutorials, and networking events.

  • 2025 IEEE/MTT-S International Microwave Symposium - IMS 2025

    The IEEE International Microwave Symposium (IMS) is the world s foremost conferencecovering the UHF, RF, wireless, microwave, millimeter-wave, terahertz, and optical frequencies;encompassing everything from basic technologies to components to systems including thelatest RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulationand more. The IMS includes technical and interactive sessions, exhibits, student competitions,panels, workshops, tutorials, and networking events.

  • 2024 IEEE/MTT-S International Microwave Symposium - IMS 2024

    The IEEE International Microwave Symposium (IMS) is the world s foremost conference covering the UHF, RF, wireless, microwave, millimeter-wave, terahertz, and optical frequencies; encompassing everything from basic technologies to components to systems including the latest RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation and more. The IMS includes technical and interactive sessions, exhibits, student competitions, panels, workshops, tutorials, and networking events.

  • 2023 IEEE/MTT-S International Microwave Symposium - IMS 2023

    The IEEE International Microwave Symposium (IMS) is the world s foremost conference covering the UHF, RF, wireless, microwave, millimeter-wave, terahertz, and optical frequencies; encompassing everything from basic technologies to components to systems including the latest RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation and more. The IMS includes technical and interactive sessions, exhibits, student competitions, panels, workshops, tutorials, and networking events.

  • 2022 IEEE/MTT-S International Microwave Symposium - IMS 2022

    The IEEE International Microwave Symposium (IMS) is the world s foremost conference covering the UHF, RF, wireless, microwave, millimeter-wave, terahertz, and optical frequencies; encompassing everything from basic technologies to components to systems including the latest RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation and more. The IMS includes technical and interactive sessions, exhibits, student competitions, panels, workshops, tutorials, and networking events.

  • 2021 IEEE/MTT-S International Microwave Symposium - IMS 2021

    The IEEE MTT-S International Microwave Symposium (IMS) is the premier conference covering basic technologies, to passives and actives components to system over a wide range of frequencies including VHF, UHF, RF, microwave, millimeter-wave, terahertz, and optical. The conference will encompass the latest in RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation, wireless systems, RFID and related topics.

  • 2019 IEEE/MTT-S International Microwave Symposium - IMS 2019

    Comprehensive symposium on microwave theory and techniques including active and passive circuit components, theory and microwave systems.

  • 2018 IEEE/MTT-S International Microwave Symposium - IMS 2018

    Microwave theory and techniques, RF/microwave/millimeter-wave/terahertz circuit design and fabrication technology, radio/wireless communication.

  • 2017 IEEE/MTT-S International Microwave Symposium - IMS 2017

    The IEEE MTT-S International Microwave Symposium (IMS) is the premier conference covering basic technologies, to passives and actives components to system over a wide range of frequencies including VHF, UHF, RF, microwave, millimeter-wave, terahertz, and optical. The conference will encompass the latest in RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation, wireless systems, RFID and related topics.

  • 2016 IEEE/MTT-S International Microwave Symposium - IMS 2016

    The IEEE International Microwave Symposium (IMS) is the world s foremost conference covering the UHF, RF, wireless, microwave, millimeter-wave, terahertz, and optical frequencies; encompassing everything from basic technologies to components to systems including the latest RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation and more. The IMS includes technical and interactive sessions, exhibits, student competitions, panels, workshops, tutorials, and networking events.

  • 2015 IEEE/MTT-S International Microwave Symposium - MTT 2015

    The IEEE MTT-S International Microwave Symposium (IMS) is the premier conference covering basic technologies, to passives and actives components to system over a wide range of frequencies including VHF, UHF, RF, microwave, millimeter-wave, terahertz, and optical. The conference will encompass the latest in RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation, wireless systems, RFID and related topics. The IMS includes technical sessions, both oral and interactive, worksh

  • 2014 IEEE/MTT-S International Microwave Symposium - MTT 2014

    IMS2014 will cover developments in microwave technology from nano devices to system applications. Technical paper sessions, interactive forums, plenary and panel sessions, workshops, short courses, industrial exhibits, and a wide array of other technical activities will be offered.

  • 2013 IEEE/MTT-S International Microwave Symposium - MTT 2013

    The IEEE MTT-S International Microwave Symposium (IMS) is the premier conference covering basic technologies, to passives and actives components to system over a wide range of frequencies including VHF, UHF, RF, microwave, millimeter -wave, terahertz, and optical. The conference will encompass the latest in RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation, wireless systems, RFID and related topics.The IMS includes technical and interactive sessions, exhibits, student competitions, panels, workshops, tutorials, and networking events.

  • 2012 IEEE/MTT-S International Microwave Symposium - MTT 2012

    The IEEE International Microwave Symposium (IMS) is the world s foremost conference covering the UHF, RF, wireless, microwave, millimeter-wave, terahertz, and optical frequencies; encompassing everything from basic technologies to components to systems including the latest RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation and more. The IMS includes technical and interactive sessions, exhibits, student competitions, panels, workshops, tutorials, and networking events.

  • 2011 IEEE/MTT-S International Microwave Symposium - MTT 2011

    The IEEE International Microwave Symposium (IMS) is the world s foremost conference covering the UHF, RF, wireless, microwave, millimeter-wave, terahertz, and optical frequencies; encompassing everything from basic technologies to components to systems including the latest RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation and more. The IMS includes technical and interactive sessions, exhibits, student competitions, panels, workshops, tutorials, and networking events.

  • 2010 IEEE/MTT-S International Microwave Symposium - MTT 2010

    Reports of research and development at the state-of-the-art of the theory and techniques related to the technology and applications of devices, components, circuits, modules and systems in the RF, microwave, millimeter-wave, submillimeter-wave and Terahertz ranges of the electromagnetic spectrum.

  • 2009 IEEE/MTT-S International Microwave Symposium - MTT 2009

    The IEEE International Microwave Symposium (IMS) is the world s foremost conference covering the UHF, RF, wireless, microwave, millimeter-wave, terahertz, and optical frequencies; encompassing everything from basic technologies to components to systems including the latest RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation and more. The IMS includes technical and interactive sessions, exhibits, student competitions, panels, workshops, tutorials, and networking events.

  • 2008 IEEE/MTT-S International Microwave Symposium - MTT 2008

  • 2007 IEEE/MTT-S International Microwave Symposium - MTT 2007

  • 2006 IEEE/MTT-S International Microwave Symposium - MTT 2006

  • 2005 IEEE/MTT-S International Microwave Symposium - MTT 2005

  • 2004 IEEE/MTT-S International Microwave Symposium - MTT 2004

  • 2003 IEEE/MTT-S International Microwave Symposium - MTT 2003

  • 2002 IEEE/MTT-S International Microwave Symposium - MTT 2002

  • 2001 IEEE/MTT-S International Microwave Symposium - MTT 2001

  • 2000 IEEE/MTT-S International Microwave Symposium - MTT 2000

  • 1999 IEEE/MTT-S International Microwave Symposium - MTT '99

  • 1998 IEEE/MTT-S International Microwave Symposium - MTT '98

  • 1997 IEEE/MTT-S International Microwave Symposium - MTT '97

  • 1996 IEEE/MTT-S International Microwave Symposium - MTT '96


2019 Design, Automation & Test in Europe Conference & Exhibition (DATE)

The DATE conference addresses all aspects of research into technologies for electronic andembedded system engineering. It covers the design process, test, and automation tools forelectronics ranging from integrated circuits to distributed embedded systems. This includes bothhardware and embedded software design issues. The conference scope also includes theelaboration of design requirements and new architectures for challenging application fields suchas telecoms, wireless communications, multimedia, healthcare, smart energy and automotivesystems. Companies also present innovative industrial designs to foster the feedback fromrealworld design to research. DATE also hosts a number of special sessions, events within themain technical programme such as panels, hot-topic sessions, tutorials and workshopstechnical programme such as panels, hot-topic sessions, tutorials and workshops.

  • 2018 Design, Automation & Test in Europe Conference & Exhibition (DATE)

    The DATE conference addresses all aspects of research into technologies for electronic and embedded system engineering. It covers the design process, test, and automation tools for electronics ranging from integrated circuits to distributed embedded systems. This includes both hardware and embedded software design issues. The conference scope also includes the elaboration of design requirements and new architectures for challenging application fields such as telecoms, wireless communications, multimedia, healthcare, smart energy and automotive systems. Companies also present innovative industrial designs to foster the feedback fromrealworld design to research. DATE also hosts a number of special sessions, events within the main technical programme such as panels, hot-topic sessions, tutorials and workshops technical programme such as panels, hot-topic sessions, tutorials and workshops.

  • 2017 Design, Automation & Test in Europe Conference & Exhibition (DATE)

    The DATE conference addresses all aspects of research into technologies for electronic and embedded system engineering. It covers the design process, test, and automation tools for electronics ranging from integrated circuits to distributed embedded systems. This includes both hardware and embedded software design issues. The conference scope also includes the elaboration of design requirements and new architectures for challenging application fields such as telecoms, wireless communications, multimedia, healthcare, smart energy and automotive systems. Companies also present innovative industrial designs to foster the feedback fromrealworld design to research. DATE also hosts a number of special sessions, events within the main technical programme such as panels, hot-topic sessions, tutorials and workshops technical programme such as panels, hot-topic sessions, tutorials and workshops.

  • 2016 Design, Automation & Test in Europe Conference & Exhibition (DATE)

    The DATE conference addresses all aspects of research into technologies for electronic andembedded system engineering. It covers the design process, test, and automation tools forelectronics ranging from integrated circuits to distributed embedded systems. This includes bothhardware and embedded software design issues. The conference scope also includes theelaboration of design requirements and new architectures for challenging application fields suchas telecoms, wireless communications, multimedia, healthcare, smart energy and automotivesystems. Companies also present innovative industrial designs to foster the feedback from realworlddesign to research. DATE also hosts a number of special sessions, events within the maintechnical programme such as panels, hot-topic sessions, tutorials and workshops technical programme such as panels, hot-topic sessions, tutorials and workshops

  • 2015 Design, Automation & Test in Europe Conference & Exhibition (DATE)

    The DATE conference addresses all aspects of research into technologies for electronic and embedded system engineering. It covers the design process, test, and automation tools for electronics ranging from integrated circuits to distributed embedded systems. This includes both hardware and embedded software design issues. The conference scope also includes the elaboration of design requirements and new architectures for challenging application fields such as telecoms, wireless communications, multimedia, healthcare, smart energy and automotive systems. Companies also present innovative industrial designs to foster the feedback from realworld design to research. DATE also hosts a number of special sessions, events within the main technical programme such as panels, hot-topic sessions, tutorials and workshops.

  • 2014 Design, Automation & Test in Europe Conference & Exhibition (DATE)

    The DATE conference addresses all aspects of research into technologies for electronic and embedded system engineering. It covers the design process, test, and automation tools for electronics ranging from integrated circuits to distributed embedded systems. This includes both hardware and embedded software design issues. The conference scope also includes the elaboration of design requirements and new architectures for challenging application fields such as telecoms, wireless communications, multimedia, healthcare, smart energy and automotive systems. Companies also present innovative industrial designs to foster the feedback from real-world design to research. DATE also hosts a number of special sessions, events within the main technical programme such as panels, hot-topic sessions, tutorials and workshops

  • 2013 Design, Automation & Test in Europe Conference & Exhibition (DATE 2013)

    DATE is the complete event for the European electronic and test community. A leading world conference and exhibition, DATE unites 2,000 professionals with approximately 60 exhibiting companies, cutting edge R&D, industrial designers and technical managers from around the world.

  • 2012 Design, Automation & Test in Europe Conference & Exhibition (DATE 2012)

    DATE is the complete event for the European electronic system and test community. A leading world conference and exhibition, DATE unites 2,000 professionals with some 60 exhibiting companies, cutting edge R&D, industrial designers and technical managers from around the world.

  • 2011 Design, Automation & Test in Europe Conference & Exhibition (DATE 2011)

    DATE is the complete event for the European electronic system and test community. A world leading conference and exhibition, DATE unites 2,000 professionals with some 60 exhibiting companies, cutting edge R&D, industrial designers and technical managers from around the world.

  • 2010 Design, Automation & Test in Europe Conference & Exhibition (DATE 2010)

    All aspects of research into technologies for electronic and (embedded) systems engineering. It covers the design process, test, and tools for design automation of electronic products ranging from integrated circuits to distributed large-scale systems.

  • 2009 Design, Automation & Test in Europe Conference & Exhibition (DATE 2009)

    The Design, Automation, and Test in Europe (DATE) conference is the world's premier conference dedicated to electronics system design & test. The technical programme features: Four distinctive and integrated themes, covering all aspects of systems design and engineering. Two special days are focusing on SoC Development Strategies and Multicore Applications.

  • 2008 Design, Automation & Test in Europe Conference & Exhibition (DATE 2008)

    The 11th DATE conference and exhibition is the main European event bringing together designers and design automation users, researchers and vendors, as well as specialists in the hardware and software design, test and manufacturing of electronic circuits and systems. It puts strong emphasis on ICs/SoCs, reconfigurable hardware and embedded systems, including embedded software. The five-day event consists of a conference with plenary invited papers, regular papers, panels, hot-topic sessions, tutorials.

  • 2007 Design, Automation & Test in Europe Conference & Exhibition (DATE 2007)

    DATE is the main European event bringing together designers and design automation users, researchers and vendors, as well as specialists in the hardware and software design, test and manufacturing of electronic circuits and systems. It puts strong emphasis on both ICs/SoCs, reconfigurable hardware and embedded systems, including embedded software.

  • 2006 Design, Automation & Test in Europe Conference & Exhibition (DATE 2006)

  • 2005 Design, Automation & Test in Europe Conference & Exhibition (DATE)

  • 2004 Design, Automation & Test in Europe Conference & Exhibition (DATE)

  • 2003 Design, Automation & Test in Europe Conference & Exhibition (DATE)

  • 2002 Design, Automation & Test in Europe Conference & Exhibition (DATE)

  • 2001 Design, Automation & Test in Europe Conference & Exhibition (DATE)

  • 2000 Design, Automation & Test in Europe Conference & Exhibition (DATE)

  • 1999 Design, Automation & Test in Europe Conference & Exhibition (DATE)


More Conferences

Periodicals related to Elliptic design

Back to Top

Antennas and Propagation, IEEE Transactions on

Experimental and theoretical advances in antennas including design and development, and in the propagation of electromagnetic waves including scattering, diffraction and interaction with continuous media; and applications pertinent to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques.


Applied Superconductivity, IEEE Transactions on

Contains articles on the applications and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Power applications include magnet design as well asmotors, generators, and power transmission


Biomedical Engineering, IEEE Transactions on

Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.


Circuits and Systems II: Express Briefs, IEEE Transactions on

Part I will now contain regular papers focusing on all matters related to fundamental theory, applications, analog and digital signal processing. Part II will report on the latest significant results across all of these topic areas.


Circuits and Systems Magazine, IEEE


More Periodicals

Most published Xplore authors for Elliptic design

Back to Top

Xplore Articles related to Elliptic design

Back to Top

Filters with an almost constant stopband

2000 IEEE MTT-S International Microwave Symposium Digest (Cat. No.00CH37017), 2000

We use a resistive-reactive crosscoupling within elliptic high- and low-pass filters to provide sharp-cutoff highpass or lowpass responses, which then reach an almost constant stopband attenuation value a short distance from the passband. This almost-constant stopband is maintained down to DC for highpass types and to at least twice the cutoff frequency for lowpass configurations. Similar resistive-reactive crosscoupling configurations can ...


Design of limit-cycle-free recursive transfer functions for fixed-point direct form implementation

Proceedings of IEEE International Symposium on Circuits and Systems - ISCAS '94, 1994

An approach for the design of limit-cycle-free digital fixed-point filters is proposed. By constraining the transfer function already in the design phase, it is guaranteed that the filter will be free from limit cycles and overflow oscillations in the direct form implementation. The design strategy also guarantees low roundoff noise. The proposed approach is illustrated with design examples. The examples ...


Preliminary design steps for thin-film superconducting filters

IEEE International Digest on Microwave Symposium, 1990

Techniques which aid in the design and development of microstrip filters on high-dielectric-constant substrates are presented. While the procedures are valid for most types of coupled-line filter structures, they are particularly useful as the initial steps in designing superconducting MIC filters. Numerical examples are given for both Chebyshev and elliptical designs. Measurements of the substrate properties of lanthanum galate and ...


Digital filters with prescribed zeros

ICASSP '78. IEEE International Conference on Acoustics, Speech, and Signal Processing, 1978

We discuss the design of digital filters with maximally flat or equiripple passband behavior and transfer functions of the form<tex>H(z)= K \frac{(z+1)^{ q}\Pi\min{i=1}\max{r}(z-e^{j\omega_{i}})(z-e^{-j\omega_{i}})}{D_{n}(z)}</tex>, where q+2r, the number of finite-plane zeros, is allowed to vary from 0 to n, the filter order. Analytic expressions are given for the magnitude squared function. Identification of the stopband edge frequency is treated in detail. ...


New class of recursive digital filters for decimation

ICASSP '78. IEEE International Conference on Acoustics, Speech, and Signal Processing, 1978

A class of equiripple IIR (Infinite Impulse Response) digital filters, with all zeros on the unit circle is discussed. These new filters bring together, to some extent, the advantages of FIR and elliptic designs, by having only powers of z<sup>D</sup>in the denominator (D is the decimation ratio). Only every Dth output is computed with these recursive filters. Comparisons are made ...


More Xplore Articles

Educational Resources on Elliptic design

Back to Top

IEEE.tv Videos

A 10-40GHz Frequency Quadrupler Source with Switchable Bandpass Filters and >30dBc Harmonic Rejection: RFIC Interactive Forum 2017
IMS 2011 Microapps - Online Design
IMS 2011 Microapps - Power Amplifier Design Utilizing the NVNA and X-Parameters
IMS 2012 Microapps - Optimizing the Design and Verification of 4G RF Power Amplifiers
Micro-Apps 2013: Integrated Electro-Thermal Design of a SiGe PA
Standards Insights for Executives: Impact of Standards on Product Design
IMS 2012 Microapps - RF System Design: Moving Beyond a Linear Datasheet
MicroApps: First-Pass Design Methodology for RF Modules (Agilent Technologies)
PA Design: RF Boot Camp
IMS MicroApps: Online Design Centers
IMS 2011 Microapps - Mixed-Signal Active Load Pull - The Fast Track to 3G/4G Amplifier Design
Brooklyn 5G Summit: Critical Modeling Aspects and Their Effect on System Design and Performance
A Decade of Electric/Hybrid Vehicles Design and Development at UTBM
IMS 2012 Microapps - Improve Microwave Circuit Design Flow Through Passive Model Yield and Sensitivity Analysis
An Energy-efficient Reconfigurable Nanophotonic Computing Architecture Design: Optical Lookup Table - IEEE Rebooting Computing 2017
A Unified Hardware/Software Co-Design Framework for Neuromorphic Computing Devices and Applications - IEEE Rebooting Computing 2017
IMS 2012 Microapps - The Next Generation of Communications Design, Validate, and Test Dr. Mark Pierpoint
ICASSP 2011 Trends in Design and Implementation of Signal Processing Systems
Blast from the past: Revisiting Evolutionary Strategies for the Design of Engineered Systems
Co-design of Power Amplifier and Dynamic Power Supplies for Radar and Communications Transmitters

IEEE-USA E-Books

  • Filters with an almost constant stopband

    We use a resistive-reactive crosscoupling within elliptic high- and low-pass filters to provide sharp-cutoff highpass or lowpass responses, which then reach an almost constant stopband attenuation value a short distance from the passband. This almost-constant stopband is maintained down to DC for highpass types and to at least twice the cutoff frequency for lowpass configurations. Similar resistive-reactive crosscoupling configurations can be used to provide constant stopband levels for bandpass and bandstop networks.

  • Design of limit-cycle-free recursive transfer functions for fixed-point direct form implementation

    An approach for the design of limit-cycle-free digital fixed-point filters is proposed. By constraining the transfer function already in the design phase, it is guaranteed that the filter will be free from limit cycles and overflow oscillations in the direct form implementation. The design strategy also guarantees low roundoff noise. The proposed approach is illustrated with design examples. The examples show that typically a 50-100% increase in the filter order (as compared to standard elliptic design) is needed for the limit-cycle-free implementation of a lowpass filter with the direct form (DF) structure. Since the DF structure is very efficient to implement in signal processors, the proposed filters are very attractive for such environment, whereas dedicated filter structures (wave digital, state-space, etc.) easily result in a 3 to 4-fold implementation complexity.<<ETX>>

  • Preliminary design steps for thin-film superconducting filters

    Techniques which aid in the design and development of microstrip filters on high-dielectric-constant substrates are presented. While the procedures are valid for most types of coupled-line filter structures, they are particularly useful as the initial steps in designing superconducting MIC filters. Numerical examples are given for both Chebyshev and elliptical designs. Measurements of the substrate properties of lanthanum galate and aluminate at ambient and liquid-nitrogen temperatures are presented. These measurements were used to design a C-band, four-pole hairpin filter. A technique to improve the prediction accuracy of commercial CAD programs for high-dielectric constant substrates was introduced and successfully tested with the prototype.<<ETX>>

  • Digital filters with prescribed zeros

    We discuss the design of digital filters with maximally flat or equiripple passband behavior and transfer functions of the form<tex>H(z)= K \frac{(z+1)^{ q}\Pi\min{i=1}\max{r}(z-e^{j\omega_{i}})(z-e^{-j\omega_{i}})}{D_{n}(z)}</tex>, where q+2r, the number of finite-plane zeros, is allowed to vary from 0 to n, the filter order. Analytic expressions are given for the magnitude squared function. Identification of the stopband edge frequency is treated in detail. The hard-ware requirements of these filters are compared with those of Chebychev and elliptic designs.

  • New class of recursive digital filters for decimation

    A class of equiripple IIR (Infinite Impulse Response) digital filters, with all zeros on the unit circle is discussed. These new filters bring together, to some extent, the advantages of FIR and elliptic designs, by having only powers of z<sup>D</sup>in the denominator (D is the decimation ratio). Only every Dth output is computed with these recursive filters. Comparisons are made with FIR and elliptic designs. It is shown that these new filters require significantly fewer multiplications per second. Coefficient storage requirements of these three designs are also compared. Some interesting properties of filters with only powers of z<sup>D</sup>in the denominator are briefly discussed.

  • Equal ripple amplitude and maximally flat group delay digital filters

    In this paper we discuss a new class of hybrid IIR/ FIR digital filters. These filters present a maximally flat group delay in the given passband and an equiripple nature in the magnitude response both in the passband and in the stopband(s). The all-pole IIR component is synthesized so that its group delay exhibits a maximally flat behaviour in the pass-band whereas the linear phase FIR component is used to obtain the desired equiripple nature in the amplitude response both in the passband and stopbands. The filter types handled are lowpass, band-pass and highpass. By suitably optimizing the maximum value in the group delay and the order of the IIR component we obtain filters requiring significantly fewer multipliers than equivalent FIR and group delay equalized elliptic designs when the passband is narrow (of the order of .1π or smaller) and a rather sharp cutoff is required. The performance of these filters is, however, slightly worse that obtainable with corresponding filters having equiripple group delay [1]. Several comparisons between different filter types are presented.

  • Design of half-reentrant SRF cavities for heavy ion linacs.

    The Spallation Neutron Source (Oak Ridge), the proposed 8 GeV Proton Driver (Fermilab), and the proposed Rare Isotope Accelerator use multi-cell elliptical SRF cavities to provide much of the accelerating voltage. This makes the elliptical cavity segment the most expensive part of the linac. A new type of accelerating structure called a half-reentrant elliptical cavity can potentially improve upon existing elliptical designs by reducing the cryogenic load by as much as 40% for the same accelerating gradient. Alternatively, with the same peak surface magnetic field as traditional elliptical cavities, it is anticipated that half-reentrant designs could operate at up to 25% higher accelerating gradient. With a half-reentrant shape, liquids can drain easily during chemical etching and high pressure rinsing, which allows standard multi-cell processing techniques to be used. In this paper, electromagnetic designs are presented for three half-reentrant cell shapes suitable for an ion or proton linac (beta = 0.47, 0.61 and 0.81, frequency = 805 MHz or 1.3 GHz). The mechanical designs for single-cell prototypes have also been completed.

  • Characteristics of Elliptical Gate-All-Around SONOS Nanowire With Effective Circular Radius

    Characteristics of cylindrical gate-all-around (GAA) SONOS nanowires with elliptical cross sections have been investigated. The mechanism of the program efficiency degradation for the elliptical GAA SONOS is analyzed by 3-D TCAD simulation depending on the geometry aspect ratios (ARs). Moreover, we proposed an effective circular radius (_R_eff1) for the elliptical silicon body through a conformal mapping. The_ID_-_V_GScurves of the elliptical and circular GAA SONOS devices with_R_eff1in initial state are almost consistent with each other for_AR_≤ 2. However, their program properties differ in less than ~4.2% due to the localized charge-trapping effect in nitride layer of the elliptical geometry.

  • On the Possibility of the Application of Axially Displaced Ellipse Antenna Elements for Construction of a Compact Multibeam Antenna System

    The application of axially displaced ellipse antenna elements in a multibeam antenna system is recommended. It is shown that in an axially displaced ellipse antenna, a simultaneous lateral shift of both the feed and subreflector results in much more beam tilting than does a shift of the feed, alone. The results of calculations and comparisons with known data are given.

  • Diffraction at a Wedge with One Face Electric and the Other Face Magnetic: Exact and Asymptotic Solutions of the Wave and Parabolic Equations

    The wedge-diffraction problem is formulated in two ways: with the Helmholtz elliptic equation and the Leontovich parabolic equation. The wedge faces have different electromagnetic properties. One face is electric (with infinite electric conductivity), while the other is magnetic (with infinite magnetic conductivity). Exact and asymptotic solutions of these two equations are derived, analyzed, and compared. It is shown that the parabolic equation provides a correct high-frequency approximation for the diffracted field.



Standards related to Elliptic design

Back to Top

No standards are currently tagged "Elliptic design"


Jobs related to Elliptic design

Back to Top