2,486 resources related to Waveguide discontinuities
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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.
2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting
The joint meeting is intended to provide an international forum for the exchange of information on state of the art research in the area of antennas and propagation, electromagnetic engineering and radio science
The 2020 IEEE International Conference on Systems, Man, and Cybernetics (SMC 2020) will be held in Metro Toronto Convention Centre (MTCC), Toronto, Ontario, Canada. SMC 2020 is the flagship conference of the IEEE Systems, Man, and Cybernetics Society. It provides an international forum for researchers and practitioners to report most recent innovations and developments, summarize state-of-the-art, and exchange ideas and advances in all aspects of systems science and engineering, human machine systems, and cybernetics. Advances in these fields have increasing importance in the creation of intelligent environments involving technologies interacting with humans to provide an enriching experience and thereby improve quality of life. Papers related to the conference theme are solicited, including theories, methodologies, and emerging applications. Contributions to theory and practice, including but not limited to the following technical areas, are invited.
The Optical Fiber Communication Conference and Exhibition (OFC) is the largest global conference and exhibition for optical communications and networking professionals. For over 40 years, OFC has drawn attendees from all corners of the globe to meet and greet, teach and learn, make connections and move business forward.OFC attracts the biggest names in the field, offers key networking and partnering opportunities, and provides insights and inspiration on the major trends and technology advances affecting the industry. From technical presentations to the latest market trends and predictions, OFC is a one-stop-shop.
Science, technology and applications spanning the millimeter-waves, terahertz and infrared spectral regions
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.
Computer, the flagship publication of the IEEE Computer Society, publishes peer-reviewed technical content that covers all aspects of computer science, computer engineering, technology, and applications. Computer is a resource that practitioners, researchers, and managers can rely on to provide timely information about current research developments, trends, best practices, and changes in the profession.
EMC standards; measurement technology; undesired sources; cable/grounding; filters/shielding; equipment EMC; systems EMC; antennas and propagation; spectrum utilization; electromagnetic pulses; lightning; radiation hazards; and Walsh functions
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.
Theory, concepts, and techniques of science and engineering as applied to sensing the earth, oceans, atmosphere, and space; and the processing, interpretation, and dissemination of this information.
Digest of the Fifth Biennial IEEE Conference on Electromagnetic Field Computation, 1992
1961 IEEE International Solid-State Circuits Conference. Digest of Technical Papers, 1961
IEEE Transactions on Microwave Theory and Techniques, 1975
The reflection and transmission of electromagnetic waves by a slant interface between two dielectric media is investigated. By using suitable Green's functions and a geometrical optics approximation for the field on the dielectric interface, expressions for the transmitted and reflected fields are derived. The approximate results obtained in this manner are compared with the available numerical data and are shown ...
50th Annual Device Research Conference, 1992
2017 11th European Conference on Antennas and Propagation (EUCAP), 2017
This paper presents a novel circular polarized slot antenna design using microstrip-ridge gap waveguide technology, it possesses the easy manufacturing since it realizes the gap waveguide with PCB process. The antenna is composed of two substrates, by using the ring slot with a shorted strip on the upper substrate and the EBG textures located on the lower substrate, the circular ...
IMS 2011 Microapps - Waveguide Characteristics and Measurement Errors
Microwave PCB Structure Selection Microstrip vs. Grounded Coplanar Waveguide: MicroApps 2015 - Rogers Corporation
PCB Fabrication Influences on Microwave Performance: MicroApps 2015 - Rogers Corporation
MicroApps: Connectors to Antennas to Waveguide: User-Confgurable and Parameterized 3D EM Model Libraries (AWR)
IMS 2014: LNA Modules for the WR4 (170-260 GHz) Frequency Range
IMS 2014: A 600 GHz Low-Noise Amplifier Module
Innovative Transmission Line Measurement and Characterization Reduce Time to Repair for Complex Communication Systems: MicroApps 2015 - Keysight Technologies
Micro-Apps 2013: Precision RF/MW Cable and Antenna Test in the Field
Micro-Apps 2013: EM Simulation Tools in Evolution within Circuit Design
V-Band Flip-Chip pHEMT Balanced Power Amplifier with CPWG-MS-CPWG Topology and CPWG Lange Couplers: RFIC Interactive Forum 2017
The reflection and transmission of electromagnetic waves by a slant interface between two dielectric media is investigated. By using suitable Green's functions and a geometrical optics approximation for the field on the dielectric interface, expressions for the transmitted and reflected fields are derived. The approximate results obtained in this manner are compared with the available numerical data and are shown to be fairly accurate for a number of cases of interest.
This paper presents a novel circular polarized slot antenna design using microstrip-ridge gap waveguide technology, it possesses the easy manufacturing since it realizes the gap waveguide with PCB process. The antenna is composed of two substrates, by using the ring slot with a shorted strip on the upper substrate and the EBG textures located on the lower substrate, the circular polarized characteristic of the antenna is obtained, the simulated results with CST simulation software show the antenna has the impedance bandwidth of 13.8% (72.1GHz-82.8GHz, |S11|<;-10dB), and the axial ratio is from 75.2GHz-79.9GHz (AR<;3dB) with 6% circular polarization bandwidth. And also the microstrip slot antenna is designed and compared with the antenna in this paper. The compared results give the strong evidence that the microstrip-ridge gap waveguide circular polarized slot antenna has wider bandwidth and higher gain.
An efficient analytical formula for analyzing optical waveguide discontinuities is presented in this paper. By using the Tappert-Lee approximation and method of lines we get an analytic expression of the square- root operator. The FFT technique is used to accelerate the multiplication of matrices. A comparison to published results shows very good agreement.
Profiled depth corrugated square waveguide polarizers are designed with the method of field expansion into eigenmodes, which includes higher order mode interaction between the step discontinuities. Computer-optimized design data are giyen for a compact Ku-band prototype with an exponentially varying depth function that achieves 90° +- 1° differential phase shift shift within the separate 11.9-12.3-GHz and 17.5-17.9-GHz frequency bands. The maximum VSWR is only about 1.02. Further design examples include a linearly profiled depth function, which provides a short design, and a polarizer with iris thicknesses suitable for metal-etching manufacturing technique. The theory is verified by comparison with available measured results.
PML (Perfectly Matched Layer) is treated as a substructure. The transverse section of the substructures is made discrete by using regular edge elements, and the stiff matrices can be calculated by precision integration based on Riccati equations in a Hamiltonian system. Finally, we can solve the waveguide discontinuity problems by the combination of the export stiff matrices of substructures. The rectangular discontinuous waveguides are calculated and the influence of energy loss with the change of substructure length is shown. The results demonstrate that the method has high efficiency, accuracy and suitability for the analyses of waveguide discontinuities.
Accurately rating the power handling capacity of a microwave component is a frequent and difficult task. In a study of this problem for the Bureau of Ships, a simple waveguide spark gap has been found to be a valuable tool and its adoption by microwave engineers as a universal standard is recommended.
In this paper, we analyze the radiated, reflected, and transmitted power due to an abrupt step discontinuity in a multimode optical waveguide by a numerical technique without any physical approximations other than neglecting the evanescent radiation modes. The amount of power loss depends primarily on the number of modes the portion of the waveguide on each side can support. The range of thickness mismatch for which reasonably low loss occurs depends on the wavelength. The technique can be used to analyze step discontinuities of symmetric or asymmetric, single or multimode optical slab waveguides with arbitrary cross section accurately.
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