Pub Date : 1985-06-04DOI: 10.1109/MWSYM.1985.1132002
P. Rolland, A. Cappy, M. Friscourt
In this paper the authors point out the existence of two different operating modes in a planar GaAs transferred-electron oscillator with a current limiting MESFET cathode. The respective advantages and drawbacks of these two modes are discussed on the basis of further monolithic integration. The influence of the operating conditions on the RF performance are given in the 100 GHz window.
{"title":"GaAs Monolithic Transferred-Electron Devices for Millimeter Wave Applications","authors":"P. Rolland, A. Cappy, M. Friscourt","doi":"10.1109/MWSYM.1985.1132002","DOIUrl":"https://doi.org/10.1109/MWSYM.1985.1132002","url":null,"abstract":"In this paper the authors point out the existence of two different operating modes in a planar GaAs transferred-electron oscillator with a current limiting MESFET cathode. The respective advantages and drawbacks of these two modes are discussed on the basis of further monolithic integration. The influence of the operating conditions on the RF performance are given in the 100 GHz window.","PeriodicalId":446741,"journal":{"name":"1985 IEEE MTT-S International Microwave Symposium Digest","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117194181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1985-06-04DOI: 10.1109/MWSYM.1985.1132039
R. Collin, B. Kretch
A perturbation theory for propagation on an open microstrip transmission line is developed by expanding the field and the propagation constant in a power series in k/sub 0/, the free space wave number. This theory only requires the use of two relatively simple static Green's functions.
{"title":"A Perturbation Theory for Microstrip Propagation","authors":"R. Collin, B. Kretch","doi":"10.1109/MWSYM.1985.1132039","DOIUrl":"https://doi.org/10.1109/MWSYM.1985.1132039","url":null,"abstract":"A perturbation theory for propagation on an open microstrip transmission line is developed by expanding the field and the propagation constant in a power series in k/sub 0/, the free space wave number. This theory only requires the use of two relatively simple static Green's functions.","PeriodicalId":446741,"journal":{"name":"1985 IEEE MTT-S International Microwave Symposium Digest","volume":"6 12","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120931682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1985-06-04DOI: 10.1109/MWSYM.1985.1131971
M. T. Faber, J. Archer, R. Mattauch
A cryogenic, single-ended, fundamental frequency mixer is reported. The use of a small-area Schottky barrier diode (C/sub o/ = 4 fF) having low series resistance, together with a careful design and optimization, have yielded a very low-noise, broadband mixer which, when fixed-tuned and cooled to 20K, has a single-sideband noise temperature less than 400K for a local oscillator frequency between 242 and 272 GHz. At 266 GHz the mixer has only 6.4 dB of conversion loss and its SSB noise temperature is only 275K. This is the lowest noise temperature ever reported for a Schottky diode mixer in this frequency range.
{"title":"A Very Low-Noise, Fixed-Tuned Mixer for 240-270 GHz","authors":"M. T. Faber, J. Archer, R. Mattauch","doi":"10.1109/MWSYM.1985.1131971","DOIUrl":"https://doi.org/10.1109/MWSYM.1985.1131971","url":null,"abstract":"A cryogenic, single-ended, fundamental frequency mixer is reported. The use of a small-area Schottky barrier diode (C/sub o/ = 4 fF) having low series resistance, together with a careful design and optimization, have yielded a very low-noise, broadband mixer which, when fixed-tuned and cooled to 20K, has a single-sideband noise temperature less than 400K for a local oscillator frequency between 242 and 272 GHz. At 266 GHz the mixer has only 6.4 dB of conversion loss and its SSB noise temperature is only 275K. This is the lowest noise temperature ever reported for a Schottky diode mixer in this frequency range.","PeriodicalId":446741,"journal":{"name":"1985 IEEE MTT-S International Microwave Symposium Digest","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127432730","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1985-06-04DOI: 10.1109/MWSYM.1985.1131942
A. Jacob, M. Jenett
A comparison between different frequency divider circuits is presented. Both the large-signal behaviour and the transfer properties have been investigated in detail. The results of the computer simulations are supported by experiments.
{"title":"Performance of Microwave FM Signal Frequency Division Circuits","authors":"A. Jacob, M. Jenett","doi":"10.1109/MWSYM.1985.1131942","DOIUrl":"https://doi.org/10.1109/MWSYM.1985.1131942","url":null,"abstract":"A comparison between different frequency divider circuits is presented. Both the large-signal behaviour and the transfer properties have been investigated in detail. The results of the computer simulations are supported by experiments.","PeriodicalId":446741,"journal":{"name":"1985 IEEE MTT-S International Microwave Symposium Digest","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115013712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1985-06-04DOI: 10.1109/MWSYM.1985.1132046
W. Thompson, K. Agarwal
A new vector method for simultaneously measuring the nonlinear amplitude and phase distortion is described. This simple method, particularly suited for repetitive measurements, isused to characterize high-power amplifiers for 64-QAM digital microwave systems. Graphic display on a "T-chart" clearly identifies gain, compression, expansion, and the order of distortion in devices.
{"title":"Vector Method of Characterizing Nonlinearity in Microwave Power Devices","authors":"W. Thompson, K. Agarwal","doi":"10.1109/MWSYM.1985.1132046","DOIUrl":"https://doi.org/10.1109/MWSYM.1985.1132046","url":null,"abstract":"A new vector method for simultaneously measuring the nonlinear amplitude and phase distortion is described. This simple method, particularly suited for repetitive measurements, isused to characterize high-power amplifiers for 64-QAM digital microwave systems. Graphic display on a \"T-chart\" clearly identifies gain, compression, expansion, and the order of distortion in devices.","PeriodicalId":446741,"journal":{"name":"1985 IEEE MTT-S International Microwave Symposium Digest","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122703078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1985-06-04DOI: 10.1109/MWSYM.1985.1132063
M. Ollivon
A simple, fast and fully automated method for the measurement of complex permittivities and temperature of solid or liquid samples heated by microwave absorption at 2.43 GHz, using the small perturbation technique, is described. First results are discussed.
{"title":"Dynamic Measurements of Complex Permittivity and Temperature During Microwave Heating","authors":"M. Ollivon","doi":"10.1109/MWSYM.1985.1132063","DOIUrl":"https://doi.org/10.1109/MWSYM.1985.1132063","url":null,"abstract":"A simple, fast and fully automated method for the measurement of complex permittivities and temperature of solid or liquid samples heated by microwave absorption at 2.43 GHz, using the small perturbation technique, is described. First results are discussed.","PeriodicalId":446741,"journal":{"name":"1985 IEEE MTT-S International Microwave Symposium Digest","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122721614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1985-06-04DOI: 10.1109/MWSYM.1985.1132010
A. Nakatani, N. Alexopoulos
Substrate materials typically used for microwave or millimeter wave applications may exhibit inherent anisotropy or may be chosen to be anisotrophic for some particular device. This paper presents techniques which compute the dispersive properties of slotlines, coplanar waveguides, finlines, inverted microstrip and striplines on anisotrophic substrates.
{"title":"A Generalized Algorithm for the Modeling of the Dispersive Characteristics of Microstrip, Inverted Microstrip, Stripline, Slotline, Finline, and Coplanar Waveguide Circuits on Anisotropic Substrates","authors":"A. Nakatani, N. Alexopoulos","doi":"10.1109/MWSYM.1985.1132010","DOIUrl":"https://doi.org/10.1109/MWSYM.1985.1132010","url":null,"abstract":"Substrate materials typically used for microwave or millimeter wave applications may exhibit inherent anisotropy or may be chosen to be anisotrophic for some particular device. This paper presents techniques which compute the dispersive properties of slotlines, coplanar waveguides, finlines, inverted microstrip and striplines on anisotrophic substrates.","PeriodicalId":446741,"journal":{"name":"1985 IEEE MTT-S International Microwave Symposium Digest","volume":"22 16","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114047161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1985-06-04DOI: 10.1109/MWSYM.1985.1131988
M. Smith, A. Pavio
An analytical design approach has been used to develop a broadband planar mixer for continuous operation in K- and Ka-bands. The double balanced design, fabricated on fused quartz, exhibits excellent conversion loss and isolation characteristics, and can be used with either coaxial RF connectors (K-Connector) or integrated directly with other planar components.
{"title":"An 18-40 GHz Double Balanced Microstrip Mixer","authors":"M. Smith, A. Pavio","doi":"10.1109/MWSYM.1985.1131988","DOIUrl":"https://doi.org/10.1109/MWSYM.1985.1131988","url":null,"abstract":"An analytical design approach has been used to develop a broadband planar mixer for continuous operation in K- and Ka-bands. The double balanced design, fabricated on fused quartz, exhibits excellent conversion loss and isolation characteristics, and can be used with either coaxial RF connectors (K-Connector) or integrated directly with other planar components.","PeriodicalId":446741,"journal":{"name":"1985 IEEE MTT-S International Microwave Symposium Digest","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128665965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1985-06-04DOI: 10.1109/MWSYM.1985.1131982
H. Shigesawa, M. Tsuji, K. Takiyama
We propose here a new idea to design filters for achieving new levels of performance. This type of filters is made of a rectangular waveguide with a partial H-plane bifurcation. Each bifurcated section finite in length operates as a cutoff waveguide, at the central part of which low permittivity dielectric resonators are loaded. An accurate CAD program is developed which is based on a procedure that takes into account the effect of not only the dominant, but also a large number of higher order modes generated at discontinuities . Experiments for X-band trial filters designed by a new program show good agreements with the theory.
{"title":"Two-Path Cutoff Waveguide Dielectric Resonator Filters","authors":"H. Shigesawa, M. Tsuji, K. Takiyama","doi":"10.1109/MWSYM.1985.1131982","DOIUrl":"https://doi.org/10.1109/MWSYM.1985.1131982","url":null,"abstract":"We propose here a new idea to design filters for achieving new levels of performance. This type of filters is made of a rectangular waveguide with a partial H-plane bifurcation. Each bifurcated section finite in length operates as a cutoff waveguide, at the central part of which low permittivity dielectric resonators are loaded. An accurate CAD program is developed which is based on a procedure that takes into account the effect of not only the dominant, but also a large number of higher order modes generated at discontinuities . Experiments for X-band trial filters designed by a new program show good agreements with the theory.","PeriodicalId":446741,"journal":{"name":"1985 IEEE MTT-S International Microwave Symposium Digest","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126852756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1985-06-04DOI: 10.1109/MWSYM.1985.1131952
J. Haynes, M. Buchalter, R. A. Moore, H. Salvo, S. Shepherd, B. R. Mcavoy
The high overtone bulk acoustic resonator (HBAR) provides the basis for stable microwave sources. The HBAR's high Q, closely spaced, periodic resonances provide stabilization for multiple frequency microwave sources. Recently an L-band source with 5 MHz channels has been developed. This HBAR source has phase noise performance equivalent to that of sources based on low frequency quartz crystal stabilization and multiplication, but it requires only a fraction of the hardware.
{"title":"Stable Microwave Source Using High Overtone Bulk Resonators","authors":"J. Haynes, M. Buchalter, R. A. Moore, H. Salvo, S. Shepherd, B. R. Mcavoy","doi":"10.1109/MWSYM.1985.1131952","DOIUrl":"https://doi.org/10.1109/MWSYM.1985.1131952","url":null,"abstract":"The high overtone bulk acoustic resonator (HBAR) provides the basis for stable microwave sources. The HBAR's high Q, closely spaced, periodic resonances provide stabilization for multiple frequency microwave sources. Recently an L-band source with 5 MHz channels has been developed. This HBAR source has phase noise performance equivalent to that of sources based on low frequency quartz crystal stabilization and multiplication, but it requires only a fraction of the hardware.","PeriodicalId":446741,"journal":{"name":"1985 IEEE MTT-S International Microwave Symposium Digest","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123822333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：