Cutoff frequency

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In physics and electrical engineering, a cutoff frequency, corner frequency, or break frequency is a boundary in a system's frequency response at which energy flowing through the system begins to be reduced rather than passing through. (Wikipedia.org)






Conferences related to Cutoff frequency

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2013 International Symposium on VLSI Design, Automation and Test (VLSI-DAT)

RF, analog and mixed-signal circuits, Modeling and simulation, Sensors and interface circuits, Hardware-software co-design, Digital circuits and ASIC, Logic and architecture synthesis, CPU, DSP and multicore architectures, Physical design and verification, Memory circuits and systems, Design for manufacturability, Low power logic and architectures, Power estimation and optimization, Multimedia processing circuits, Design verification, Communication circuits, Test generation and fault simulation, Embedded systems and software, BIST and design for testability, Designs using novel technologies, RF, analog and mixed-signal test, System-in-package design, SOC and system level testing, Electronic System Level Design, System level design automation.


2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT)

ICMMT2012 will be held in Shenzhen, China on May 5-8, 2012. Technical papers describing original work in research, development, and application of all area in microwave and millimeter wave are solicited, including antennas, EM theory and numerical methods, RFIC, EMC, measurement, wireless and optic communications. ICMMT2012 is organized, sponsored by Microwave Society of Chinese Institute of Electronics, co-sponsored by Harbin Institute of Technology Shenzhen Graduate School, South China University of Technology, and KingRadio Technology, and technically co-sponsored by IEEE Beijing Section, IEEE Nanjing Section, IEEE Shanghai Section, IEEE Harbin Section, etc. ICMMT is intended to provide a broad international forum and nice opportunity for the scientists and engineers to present their new ideas and exchange information on research. We welcome you to join us and share your contributions in the conference.



Periodicals related to Cutoff frequency

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Audio, Speech, and Language Processing, IEEE Transactions on

Speech analysis, synthesis, coding speech recognition, speaker recognition, language modeling, speech production and perception, speech enhancement. In audio, transducers, room acoustics, active sound control, human audition, analysis/synthesis/coding of music, and consumer audio. (8) (IEEE Guide for Authors) The scope for the proposed transactions includes SPEECH PROCESSING - Transmission and storage of Speech signals; speech coding; speech enhancement and noise reduction; ...


Electron Devices, IEEE Transactions on

Publishes original and significant contributions relating to the theory, design, performance and reliability of electron devices, including optoelectronics devices, nanoscale devices, solid-state devices, integrated electronic devices, energy sources, power devices, displays, sensors, electro-mechanical devices, quantum devices and electron tubes.


Nanotechnology, IEEE Transactions on

The proposed IEEE Transactions on Nanotechnology will be devoted to the publication of manuscripts of archival value in the general area of nanotechnology, that is rapidly emerging as one of the fastest growing and most promising new technological developments for the next generation and beyond.


Solid-State Circuits, IEEE Journal of

The IEEE Journal of Solid-State Circuits publishes papers each month in the broad area of solid-state circuits with particular emphasis on transistor-level design of integrated circuits. It also provides coverage of topics such as device modeling, technology, systems design, layout, and testing that relate directly to IC design. Integrated circuits and VLSI are of principal interest; material related to discrete ...


Systems, Man, and Cybernetics, Part B, IEEE Transactions on

The scope of the IEEE Transactions on Systems, Man and Cybernetics Part B: Cybernetics includes computational approaches to the field of cybernetics. Specifically, the transactions welcomes papers on communication and control across machines or between machines, humans, and organizations. The scope of Part B includes such areas as computational intelligence, computer vision, neural networks, genetic algorithms, machine learning, fuzzy systems, ...



Most published Xplore authors for Cutoff frequency

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Xplore Articles related to Cutoff frequency

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Compact microstrip elliptic function lowpass filter with sharp roll-off and wide stopband by cascading multiple patch resonators

P. M. Raphika; P. Abdulla; P. M. Jasmine 2014 IEEE International Microwave and RF Conference (IMaRC), 2014

A new compact microstrip elliptic function lowpass filter with very good roll- off and wide stopband by cascading multiple patch resonators is presented. The sharp skirt near the cutoff frequency is due to the presence of series resonators formed by the connecting stub and patches which are in parallel with the 106 Ω central microstrip line. The 3 dB cutoff ...


High Sensitivity Full Waveguide Ku-Band Harmonic Mixer

R. G. Hicks 1986 16th European Microwave Conference, 1986

The design of a full waveguide band harmonic mixer with vastly improved sensitivity covering the band 12.4 - 18.0 GHz is described. Details of the design of the mixer mount configuration together with the design of the diplexer are provided. The mixer, operating at a harmonic number of 6, provides a maximum conversion loss of 19 dB, a minimum conversion ...


Comments on "2-D FIR filters design using least square error with scaling-free McClellan transformation"

S. S. Kidambi IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, 2003

For original paper see H.C.Lu and K.H.Yeh, ibid., vol.47, pp.1104-07 (2000). The idea of formulating the least-squares error along the desired contour in a quadratic form in the design of two-dimensional (2-D) zero-phase nonrecursive filters has been presented previously (S.S.Kidambi, 1995). Explicit formulas for the design of 2-D fan filters with prescribed inclination have also been presented. As claimed in ...


A new class of nonuniform, broadband, nonsymmetrical rectangular coaxial-to-microstrip directional couplers for high power applications

V. Teppati; A. Ferrero IEEE Microwave and Wireless Components Letters, 2003

An innovative class of coaxial-to-microstrip broad-band high power directional couplers is studied. The new devices overcome the drawbacks of both stripline and coaxial couplers and allow simple and low cost mechanical construction. In this letter, we present the design, realization and characterization of a set of broad-band (900 MHz to 5.5 GHz) low coupling (-30 dB, -40 dB) directional couplers ...


Control scheme for source voltage sensorless PWM converters under source voltage unbalance

Eunsoo Jung; Myoungho Kim; Seung-Ki Sul Proceedings of the 2011 14th European Conference on Power Electronics and Applications, 2011

This paper presents a control scheme for three-phase PWM converters which have no ac-side voltage sensors. In spite of no source voltage sensors, the proposed method estimates exact grid angle and voltages, which are the essential parts for the power transfer between DC link of PWM converter and AC source. The method works not only in normal balanced AC source ...


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Compact microstrip elliptic function lowpass filter with sharp roll-off and wide stopband by cascading multiple patch resonators

P. M. Raphika; P. Abdulla; P. M. Jasmine 2014 IEEE International Microwave and RF Conference (IMaRC), 2014

A new compact microstrip elliptic function lowpass filter with very good roll- off and wide stopband by cascading multiple patch resonators is presented. The sharp skirt near the cutoff frequency is due to the presence of series resonators formed by the connecting stub and patches which are in parallel with the 106 Ω central microstrip line. The 3 dB cutoff ...


High Sensitivity Full Waveguide Ku-Band Harmonic Mixer

R. G. Hicks 1986 16th European Microwave Conference, 1986

The design of a full waveguide band harmonic mixer with vastly improved sensitivity covering the band 12.4 - 18.0 GHz is described. Details of the design of the mixer mount configuration together with the design of the diplexer are provided. The mixer, operating at a harmonic number of 6, provides a maximum conversion loss of 19 dB, a minimum conversion ...


Comments on "2-D FIR filters design using least square error with scaling-free McClellan transformation"

S. S. Kidambi IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, 2003

For original paper see H.C.Lu and K.H.Yeh, ibid., vol.47, pp.1104-07 (2000). The idea of formulating the least-squares error along the desired contour in a quadratic form in the design of two-dimensional (2-D) zero-phase nonrecursive filters has been presented previously (S.S.Kidambi, 1995). Explicit formulas for the design of 2-D fan filters with prescribed inclination have also been presented. As claimed in ...


A new class of nonuniform, broadband, nonsymmetrical rectangular coaxial-to-microstrip directional couplers for high power applications

V. Teppati; A. Ferrero IEEE Microwave and Wireless Components Letters, 2003

An innovative class of coaxial-to-microstrip broad-band high power directional couplers is studied. The new devices overcome the drawbacks of both stripline and coaxial couplers and allow simple and low cost mechanical construction. In this letter, we present the design, realization and characterization of a set of broad-band (900 MHz to 5.5 GHz) low coupling (-30 dB, -40 dB) directional couplers ...


Control scheme for source voltage sensorless PWM converters under source voltage unbalance

Eunsoo Jung; Myoungho Kim; Seung-Ki Sul Proceedings of the 2011 14th European Conference on Power Electronics and Applications, 2011

This paper presents a control scheme for three-phase PWM converters which have no ac-side voltage sensors. In spite of no source voltage sensors, the proposed method estimates exact grid angle and voltages, which are the essential parts for the power transfer between DC link of PWM converter and AC source. The method works not only in normal balanced AC source ...


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IEEE-USA E-Books

  • HighTemperature Characteristics of AlAs/GaAs/AlAs Resonant Thnneling Diodes

    This article reports the high-temperature de characteristics of double-barrier AlAs/GaAs/AlAs resonant tunneling diodes, over the temperature range 22°C to 185°C. The negative differential resistance of these quantum-well structures persisted up to the highest temperature; over this temperature range of 163°C, the peak current increased slightly (5%), but the valley current increased significantly (180%), resulting in a reduction of the peak-to-valley current ratio from 3.5 at 22°C to 1.3 at 185°C. The slight change in the peak current indicated that the diodes were of high quality and that tunneling was the dominant conduction mechanism. The difference between the voltage at the valley and at the peak decreased from 115mV at 22°C to 80 mV at 185°C. Between 125°C and 185°C, the valley current as a function oftemperature could be fitted to an Arrhenius-type dependence with an activation energy of 120meV.Although these quantum-well diodes appear usable to at least 185°C, the temperature dependence of the peak-to-valley current ratio and voltage difference would significantly affect their performance, such as switching speed, oscillator power, or cutoff frequency, for digital or analog circuit applications at high temperatures.

  • GaN Based Transistors for High Temperature Applications

    We review theoretical and experimental results for GaN-based field effect transistors (FET) and discuss their potential for high temperature applications. We demonstrate that a decrease in ionized impurity scattering with an increase in temperature makes AIGaN-GaN DC-HFET to be superior candidates for high temperature applications. In these devices, a large sheet carrier concentration in the device channel allows us to obtain a relatively low parasitic series resistance and to achieve superior de and ac performance (with the cutoff frequency times gate length product of 18.3 GHz x m demonstrated recently by our group at room temperature). © 1997 Elsevier Science S.A.



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