Pub Date : 1981-06-15DOI: 10.1109/MWSYM.1981.1129985
H. Onodera, I. Awai, M. Nakajima, J. Ikenoue
Coupling of TE/sub 0/ guided mode to TM radiation mode is controled by a modulation signal applied to coplanar electrodes. Almost 30dB/cm of modulation efficiency at 0.6328mu m wavelength has been obtained using a Nb/sub 2/O/sub 5/-LiTaO/sub 3/ planar waveguide with modulation voltage 350V and electrodes gap 55mu m.
{"title":"Experiment on Light Intensity Modulation Based on Guided-to-Radation Mode Coupling in Hetero-Structure Thin Film Waveguide","authors":"H. Onodera, I. Awai, M. Nakajima, J. Ikenoue","doi":"10.1109/MWSYM.1981.1129985","DOIUrl":"https://doi.org/10.1109/MWSYM.1981.1129985","url":null,"abstract":"Coupling of TE/sub 0/ guided mode to TM radiation mode is controled by a modulation signal applied to coplanar electrodes. Almost 30dB/cm of modulation efficiency at 0.6328mu m wavelength has been obtained using a Nb/sub 2/O/sub 5/-LiTaO/sub 3/ planar waveguide with modulation voltage 350V and electrodes gap 55mu m.","PeriodicalId":120372,"journal":{"name":"1981 IEEE MTT-S International Microwave Symposium Digest","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127366594","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 : 1981-06-15DOI: 10.1109/MWSYM.1981.1129818
E. Hammerstad
Accurate and simple models are presented for the microstrip open end, the gap, the compensated right-angle bend, and the T-junction, both symmetric and non-symmetric. Their importance in computer-aided design is illustrated with a computer program optimizing the physical lay-out of microstrip branch-guide couplers.
{"title":"Computer-Aided Design of Microstrip Couplers with Accurate Discontinuity Models","authors":"E. Hammerstad","doi":"10.1109/MWSYM.1981.1129818","DOIUrl":"https://doi.org/10.1109/MWSYM.1981.1129818","url":null,"abstract":"Accurate and simple models are presented for the microstrip open end, the gap, the compensated right-angle bend, and the T-junction, both symmetric and non-symmetric. Their importance in computer-aided design is illustrated with a computer program optimizing the physical lay-out of microstrip branch-guide couplers.","PeriodicalId":120372,"journal":{"name":"1981 IEEE MTT-S International Microwave Symposium Digest","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124842614","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 : 1981-06-15DOI: 10.1109/MWSYM.1981.1129802
K. Solbach, I. Wolff
Slots in the ground plane of dielectric image lines are investigated as new circuit elements. This configuration has attrated attention for two applications: The dielectric image line above the slot can be designed to act as a shielding, thus reducing radiation losses if a diode is mounted above the slot e.g. in a detector- or mixer-circuit. On the other hand, similar to slots in metal waveguides, slots in the ground plane of dielectric image lines can be designed for antenna applications and even for nonradiating filter-structures.
{"title":"Slots As New Circuit-Elements in Dielectric Image Line","authors":"K. Solbach, I. Wolff","doi":"10.1109/MWSYM.1981.1129802","DOIUrl":"https://doi.org/10.1109/MWSYM.1981.1129802","url":null,"abstract":"Slots in the ground plane of dielectric image lines are investigated as new circuit elements. This configuration has attrated attention for two applications: The dielectric image line above the slot can be designed to act as a shielding, thus reducing radiation losses if a diode is mounted above the slot e.g. in a detector- or mixer-circuit. On the other hand, similar to slots in metal waveguides, slots in the ground plane of dielectric image lines can be designed for antenna applications and even for nonradiating filter-structures.","PeriodicalId":120372,"journal":{"name":"1981 IEEE MTT-S International Microwave Symposium Digest","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123795341","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 : 1981-06-15DOI: 10.1109/MWSYM.1981.1129902
M. Mlinar, W. Piotrowski, J. Raue
A development effort is described that resulted in a rugged 19 GHz ferrite component with 1.4 GHz of bandwidth and 0.25 dB insertion loss and a capability to switch 100W CW power.
{"title":"A K-Band High Power Low Loss Latching Switch","authors":"M. Mlinar, W. Piotrowski, J. Raue","doi":"10.1109/MWSYM.1981.1129902","DOIUrl":"https://doi.org/10.1109/MWSYM.1981.1129902","url":null,"abstract":"A development effort is described that resulted in a rugged 19 GHz ferrite component with 1.4 GHz of bandwidth and 0.25 dB insertion loss and a capability to switch 100W CW power.","PeriodicalId":120372,"journal":{"name":"1981 IEEE MTT-S International Microwave Symposium Digest","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114956495","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 : 1981-06-15DOI: 10.1109/MWSYM.1981.1129899
A. Khilla
An exact field theory treatment of microstrip Y-junction circulators for wideband operation is presented. Field expressions are written in each region of the junction in form of infinite summation of the corresponding region modes. Matching of the fields at the common boundaries, taking fringing fields in microstrip structures into account, leads to a set of infinite non-homogeneous equations in these mode-amplitudes. A wideband microstrip circulator, designed using the point-matching technique, is observed. The 20-dB isolation bandwidth is about 62% without using any external tuning elements.
{"title":"Analysis of Wide-Band Microstrip Circulators by Point-Matching Technique","authors":"A. Khilla","doi":"10.1109/MWSYM.1981.1129899","DOIUrl":"https://doi.org/10.1109/MWSYM.1981.1129899","url":null,"abstract":"An exact field theory treatment of microstrip Y-junction circulators for wideband operation is presented. Field expressions are written in each region of the junction in form of infinite summation of the corresponding region modes. Matching of the fields at the common boundaries, taking fringing fields in microstrip structures into account, leads to a set of infinite non-homogeneous equations in these mode-amplitudes. A wideband microstrip circulator, designed using the point-matching technique, is observed. The 20-dB isolation bandwidth is about 62% without using any external tuning elements.","PeriodicalId":120372,"journal":{"name":"1981 IEEE MTT-S International Microwave Symposium Digest","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114181683","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 : 1981-06-15DOI: 10.1109/MWSYM.1981.1129801
Y. Shih, J. Rivers, T. Itoh
An image-guide is excited by a Slot Yagi-Uda array created in the ground plane so that the majority of the energy travels in a specified direction. The method is useful for implementing planar devices for image-guide structures.
{"title":"Directive Planar Excitation of an Image-Guide","authors":"Y. Shih, J. Rivers, T. Itoh","doi":"10.1109/MWSYM.1981.1129801","DOIUrl":"https://doi.org/10.1109/MWSYM.1981.1129801","url":null,"abstract":"An image-guide is excited by a Slot Yagi-Uda array created in the ground plane so that the majority of the energy travels in a specified direction. The method is useful for implementing planar devices for image-guide structures.","PeriodicalId":120372,"journal":{"name":"1981 IEEE MTT-S International Microwave Symposium Digest","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128463107","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 : 1981-06-15DOI: 10.1109/MWSYM.1981.1129871
A. Fukasawa, T. Sato, K. Hosoda
A new filter construction is proposed in this paper to realize a highly miniaturized microwave band-pass filter. An element of resonator filter is composed of a square dielectric post and a round inner conductor. Each element of resonator is allocated in a housing similar to conventional combline filter, however, the length of a resonator is basically a quarter-wavelength long. The higher unloaded Q and a larger inter-resonator coupling were brought through two factors: open-boundary condition on the periphery along the dielectric post and the air spacing between resonators. Five-stages Tschebyshev response band-pass filters were developed at 800 MHz band to have 20~30 MHz pass-band and 0.8~1.0 dB insertion loss at the temperature range: -35~+80/spl deg/ C, The volume and the weight of the filters are about 25 cm/sup 3/ and 60 gramms.
{"title":"Miniaturized Microwave Filter Construction with Dielectric-Loaded Resonator and Space Coupling","authors":"A. Fukasawa, T. Sato, K. Hosoda","doi":"10.1109/MWSYM.1981.1129871","DOIUrl":"https://doi.org/10.1109/MWSYM.1981.1129871","url":null,"abstract":"A new filter construction is proposed in this paper to realize a highly miniaturized microwave band-pass filter. An element of resonator filter is composed of a square dielectric post and a round inner conductor. Each element of resonator is allocated in a housing similar to conventional combline filter, however, the length of a resonator is basically a quarter-wavelength long. The higher unloaded Q and a larger inter-resonator coupling were brought through two factors: open-boundary condition on the periphery along the dielectric post and the air spacing between resonators. Five-stages Tschebyshev response band-pass filters were developed at 800 MHz band to have 20~30 MHz pass-band and 0.8~1.0 dB insertion loss at the temperature range: -35~+80/spl deg/ C, The volume and the weight of the filters are about 25 cm/sup 3/ and 60 gramms.","PeriodicalId":120372,"journal":{"name":"1981 IEEE MTT-S International Microwave Symposium Digest","volume":"180 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128351529","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 : 1981-06-15DOI: 10.1109/MWSYM.1981.1129875
L. Yorinks
This paper describes a family of high power, low VSWR, S-band split-tee power dividers with coupling values from 3 dB to 5 dB. The power dividers use rectangular coaxial transmission line and employ a unique self-compensated isolation resistor.
{"title":"Rectangular, Coaxial-line, Split-tee Power Dividers","authors":"L. Yorinks","doi":"10.1109/MWSYM.1981.1129875","DOIUrl":"https://doi.org/10.1109/MWSYM.1981.1129875","url":null,"abstract":"This paper describes a family of high power, low VSWR, S-band split-tee power dividers with coupling values from 3 dB to 5 dB. The power dividers use rectangular coaxial transmission line and employ a unique self-compensated isolation resistor.","PeriodicalId":120372,"journal":{"name":"1981 IEEE MTT-S International Microwave Symposium Digest","volume":"728 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123852601","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 : 1981-06-15DOI: 10.1109/MWSYM.1981.1129906
B. Hallford
Economical double-sideband (two diode) and single-sideband (four diode) double-balanced broadband mixers use balun-coupled planar circuits suitable for any dielectric constant substrate, since slot line or coplanar waveguide is not used.
{"title":"Simple Balun-Coupled Mixers","authors":"B. Hallford","doi":"10.1109/MWSYM.1981.1129906","DOIUrl":"https://doi.org/10.1109/MWSYM.1981.1129906","url":null,"abstract":"Economical double-sideband (two diode) and single-sideband (four diode) double-balanced broadband mixers use balun-coupled planar circuits suitable for any dielectric constant substrate, since slot line or coplanar waveguide is not used.","PeriodicalId":120372,"journal":{"name":"1981 IEEE MTT-S International Microwave Symposium Digest","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123892945","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 : 1981-06-15DOI: 10.1109/MWSYM.1981.1129865
Y. Kokubo, M. Kawamura
A new type of resonator consisting of two metallic circular disks and a cylinder was applied as a guided cavity to the CH/sub 3/F laser with successful operation.
将一种由两个金属圆盘和一个圆柱体组成的新型谐振腔应用于CH/sub 3/F激光器，并取得了成功。
{"title":"CH/sub 3/F Submillimeter Laser Using New Type of Resonator","authors":"Y. Kokubo, M. Kawamura","doi":"10.1109/MWSYM.1981.1129865","DOIUrl":"https://doi.org/10.1109/MWSYM.1981.1129865","url":null,"abstract":"A new type of resonator consisting of two metallic circular disks and a cylinder was applied as a guided cavity to the CH/sub 3/F laser with successful operation.","PeriodicalId":120372,"journal":{"name":"1981 IEEE MTT-S International Microwave Symposium Digest","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132484093","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：