Pub Date : 1985-06-04DOI: 10.1109/MWSYM.1985.1132042
P. Katehi, N. Alexopoulos
A theoretical approach for the representation of microstrip discontinuities by equivalent circuits with frequency dependent parameters is presented. The method accounts accurately for the substrate presence and associated surface wave model, strip finite thickness and radiation losses. The method can also be applied for the solution of microstrip components in the millimetric frequency range.
{"title":"Microstrip Discontinuity Modelling for Millimetric Integrated Circuits","authors":"P. Katehi, N. Alexopoulos","doi":"10.1109/MWSYM.1985.1132042","DOIUrl":"https://doi.org/10.1109/MWSYM.1985.1132042","url":null,"abstract":"A theoretical approach for the representation of microstrip discontinuities by equivalent circuits with frequency dependent parameters is presented. The method accounts accurately for the substrate presence and associated surface wave model, strip finite thickness and radiation losses. The method can also be applied for the solution of microstrip components in the millimetric frequency range.","PeriodicalId":446741,"journal":{"name":"1985 IEEE MTT-S International Microwave Symposium Digest","volume":"51 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":"125075107","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.1985.1131987
J. Ondria
A series tuned GaAs VCO employing a second harmonic radial disk circuit has provided up to 10 percent electronic tuning bandwidth (ETB) at 94GHz. Packaged GaAs Gunn and Hyperabrupt Varactor Diodes are employed. Analysis of the series equivalent circuit provides insight into methods of controlling trade-off between output power and tuning bandwidth, e.g. by restricting the ETB to 1.5GHz around 92.3GHz an output power of 18 to 22mW was achieved; with tighter coupling an output power of 11 to 12.8mW from 91.5 to 95.5GHz resulted.
{"title":"Wideband Electronically Tunable GaAs Gunn VCO's at W-Band (75-110GHz)","authors":"J. Ondria","doi":"10.1109/MWSYM.1985.1131987","DOIUrl":"https://doi.org/10.1109/MWSYM.1985.1131987","url":null,"abstract":"A series tuned GaAs VCO employing a second harmonic radial disk circuit has provided up to 10 percent electronic tuning bandwidth (ETB) at 94GHz. Packaged GaAs Gunn and Hyperabrupt Varactor Diodes are employed. Analysis of the series equivalent circuit provides insight into methods of controlling trade-off between output power and tuning bandwidth, e.g. by restricting the ETB to 1.5GHz around 92.3GHz an output power of 18 to 22mW was achieved; with tighter coupling an output power of 11 to 12.8mW from 91.5 to 95.5GHz resulted.","PeriodicalId":446741,"journal":{"name":"1985 IEEE MTT-S International Microwave Symposium Digest","volume":"224 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":"122642351","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.1985.1131980
C. Nguyen, K. Chang
This paper describes the design and performance of a contiguous 90- to 112-GHz diplexer using the integrated finline technique. State-of-the-art results of 1.5 dB insertion losses have been achieved. There is good agreement between the experimental results and those predicted theoretically; these results demonstrate a significant technological advance of millimeter-wave multiplexer using printed circuit techniques. Results of an extremely wideband H-plane tee with a VSWR of less than 1.4 over the full W-band (75 to 110 GHz) are also presented.
{"title":"Design and Performance of a W-Band Broadband Finline Diplexer with Over 20 GHz Bandwidth","authors":"C. Nguyen, K. Chang","doi":"10.1109/MWSYM.1985.1131980","DOIUrl":"https://doi.org/10.1109/MWSYM.1985.1131980","url":null,"abstract":"This paper describes the design and performance of a contiguous 90- to 112-GHz diplexer using the integrated finline technique. State-of-the-art results of 1.5 dB insertion losses have been achieved. There is good agreement between the experimental results and those predicted theoretically; these results demonstrate a significant technological advance of millimeter-wave multiplexer using printed circuit techniques. Results of an extremely wideband H-plane tee with a VSWR of less than 1.4 over the full W-band (75 to 110 GHz) are also presented.","PeriodicalId":446741,"journal":{"name":"1985 IEEE MTT-S International Microwave Symposium Digest","volume":"30 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":"121877954","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.1985.1132031
R. Garver, C. Fazi, H. Bruns
An experiemntal setup has been developed which permits the progressive degradation of a mixer to be observed while it is being exposed to high-power-microwave pulses at a low repetition rate.
建立了一种实验装置，可以观察到混频器在低重复率下暴露于高功率微波脉冲时的逐步退化。
{"title":"Dynamic Diode Mixer Damage Measurements","authors":"R. Garver, C. Fazi, H. Bruns","doi":"10.1109/MWSYM.1985.1132031","DOIUrl":"https://doi.org/10.1109/MWSYM.1985.1132031","url":null,"abstract":"An experiemntal setup has been developed which permits the progressive degradation of a mixer to be observed while it is being exposed to high-power-microwave pulses at a low repetition rate.","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":"121279946","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.1985.1131985
H. Barth, W. Menzel
Design and performance of an 135 GHz, 3rd harmonic oscillator utilizing a 45 GHz Ga As-Gunn device is described. The nonlinear capacitance of the Gunn-device is used for frequency triplication. Hence an idler circuit for the 2nd harmonic wave is built in. This raises the efficiency of fundamental wave to 3rd harmonic wave conversion considerably. Output power was measured as 3 mW.
介绍了一种基于45 GHz Ga As-Gunn器件的135 GHz三谐振荡器的设计和性能。gunn器件的非线性电容用于三倍频。因此，一个空闲电路的第二谐波是内置的。这大大提高了基波到三次谐波转换的效率。输出功率测量为3mw。
{"title":"GaAs Gunn Oscillators Reach the 140 GHz Range","authors":"H. Barth, W. Menzel","doi":"10.1109/MWSYM.1985.1131985","DOIUrl":"https://doi.org/10.1109/MWSYM.1985.1131985","url":null,"abstract":"Design and performance of an 135 GHz, 3rd harmonic oscillator utilizing a 45 GHz Ga As-Gunn device is described. The nonlinear capacitance of the Gunn-device is used for frequency triplication. Hence an idler circuit for the 2nd harmonic wave is built in. This raises the efficiency of fundamental wave to 3rd harmonic wave conversion considerably. Output power was measured as 3 mW.","PeriodicalId":446741,"journal":{"name":"1985 IEEE MTT-S International Microwave Symposium Digest","volume":"47 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":"132658527","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.1985.1131906
Y. X. Wang
A coplanar waveguide short gap resonator as an electromagnetic energy coupler for medical applications is described. The principles and design formulas are given and the experimental results are provided. From the data, obtained on a phantom, it can be shown that this coupler can couple the EM energy more efficiently.
{"title":"Coplanar Waveguide Short Gap Resonator for Medical Applications","authors":"Y. X. Wang","doi":"10.1109/MWSYM.1985.1131906","DOIUrl":"https://doi.org/10.1109/MWSYM.1985.1131906","url":null,"abstract":"A coplanar waveguide short gap resonator as an electromagnetic energy coupler for medical applications is described. The principles and design formulas are given and the experimental results are provided. From the data, obtained on a phantom, it can be shown that this coupler can couple the EM energy more efficiently.","PeriodicalId":446741,"journal":{"name":"1985 IEEE MTT-S International Microwave Symposium Digest","volume":"33 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":"132673519","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.1985.1132047
M. Bialkowski, G. Woods
A technique for calibrating an arbitrary six-port network using nine unknown loads and three known loads is described. The technique is similar to the self-calibration technique first developed by Engen. However, it uses full six-port to four-port reduction so that it is quite insensitive to errors, The theory is illustrated with typical measurement results showing an accuracy of better than 1.0% achievable without optimization of the six-port to four-port reduction constants.
{"title":"Calibrating a Six-Port Reflectometer Using Three Known Loads","authors":"M. Bialkowski, G. Woods","doi":"10.1109/MWSYM.1985.1132047","DOIUrl":"https://doi.org/10.1109/MWSYM.1985.1132047","url":null,"abstract":"A technique for calibrating an arbitrary six-port network using nine unknown loads and three known loads is described. The technique is similar to the self-calibration technique first developed by Engen. However, it uses full six-port to four-port reduction so that it is quite insensitive to errors, The theory is illustrated with typical measurement results showing an accuracy of better than 1.0% achievable without optimization of the six-port to four-port reduction constants.","PeriodicalId":446741,"journal":{"name":"1985 IEEE MTT-S International Microwave Symposium Digest","volume":"119 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":"132943155","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.1985.1131965
T. Nishikawa, K. Wakino, H. Wada, Y. Ishikawa
High power and temperature stable "Channel Dropping Filters" for Transmission Multiplexer of base stations have been miniaturized to almost 1/3 the size of the dielectric TM/sub 010/ resonator filter by using triple mode resonance, and we reported on this at the last symposium. The triple mode resonator works as resonators of three independent one-section filters. The isolation level between each two filter was about 40dB.
{"title":"800 MHz Band Dielectric Channel Dropping Filter Using TM/sub 110/ Triple Mode Resonance","authors":"T. Nishikawa, K. Wakino, H. Wada, Y. Ishikawa","doi":"10.1109/MWSYM.1985.1131965","DOIUrl":"https://doi.org/10.1109/MWSYM.1985.1131965","url":null,"abstract":"High power and temperature stable \"Channel Dropping Filters\" for Transmission Multiplexer of base stations have been miniaturized to almost 1/3 the size of the dielectric TM/sub 010/ resonator filter by using triple mode resonance, and we reported on this at the last symposium. The triple mode resonator works as resonators of three independent one-section filters. The isolation level between each two filter was about 40dB.","PeriodicalId":446741,"journal":{"name":"1985 IEEE MTT-S International Microwave Symposium Digest","volume":"293 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":"131912257","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.1985.1131908
F. Sterzer, R. Paglione, E. Friedenthal, J. Mendecki
A microwave apparatus that can produce uniform hyperthermic temperatures over large surface fields is described. The apparatus consists of a 2450 MHz power generator, a PIN diode power controller, a low-leakage non-contacting microwave applicator with an integral non-contacting infrared thermometer, a thermostat that provides feedback control and can be set to the desired tissue temperature, and a computer controlled mechanical arm that scans the applicator and the infrared thermometer over the treatment field.
{"title":"A Microwave Apparatus for Producing Uniform Hyperthermic Temperatures Over Large Surfaces","authors":"F. Sterzer, R. Paglione, E. Friedenthal, J. Mendecki","doi":"10.1109/MWSYM.1985.1131908","DOIUrl":"https://doi.org/10.1109/MWSYM.1985.1131908","url":null,"abstract":"A microwave apparatus that can produce uniform hyperthermic temperatures over large surface fields is described. The apparatus consists of a 2450 MHz power generator, a PIN diode power controller, a low-leakage non-contacting microwave applicator with an integral non-contacting infrared thermometer, a thermostat that provides feedback control and can be set to the desired tissue temperature, and a computer controlled mechanical arm that scans the applicator and the infrared thermometer over the treatment field.","PeriodicalId":446741,"journal":{"name":"1985 IEEE MTT-S International Microwave Symposium Digest","volume":"330 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":"121839847","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.1985.1132072
R. Romanofsky, K. Bhasin, G. Ponchak, A. M. Downey, D. J. Connolly
Dispersion and loss characteristics of microstrip lines on 10 mil and 31 mil electrodeposited and electroless copper clad-Teflon substrates were experimentally obtained from 2-40 GHz. The roles of surface roughness and radiation in total loss are examined.
{"title":"An Experimental Investigation of Microstrip Properties on Soft Substrates from 2 to 40 GHz","authors":"R. Romanofsky, K. Bhasin, G. Ponchak, A. M. Downey, D. J. Connolly","doi":"10.1109/MWSYM.1985.1132072","DOIUrl":"https://doi.org/10.1109/MWSYM.1985.1132072","url":null,"abstract":"Dispersion and loss characteristics of microstrip lines on 10 mil and 31 mil electrodeposited and electroless copper clad-Teflon substrates were experimentally obtained from 2-40 GHz. The roles of surface roughness and radiation in total loss are examined.","PeriodicalId":446741,"journal":{"name":"1985 IEEE MTT-S International Microwave Symposium Digest","volume":"37 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":"126263268","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}
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