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A SPECTRAL-DOMAIN IMMITTANCE APPROACH FOR THE CHARACTERISTICS OF FINLINES LOADED WITH ANISOTROPIC MEDIUM
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作者 寻培珏 吴信宝 《Journal of Electronics(China)》 1991年第2期154-162,共9页
The equations of electrodynamics for a gyrotropic medium by using Maxwell’s equa-tions are deduced.Through Fourier transformation,the admittances of TM and TE modes inthe electrically gyrotropic substrate and magneti... The equations of electrodynamics for a gyrotropic medium by using Maxwell’s equa-tions are deduced.Through Fourier transformation,the admittances of TM and TE modes inthe electrically gyrotropic substrate and magnetically gyrotropic substrate are given.Numericalresults of the dominant mode in magnetized ferrite-loaded double-layered finlines are presentedwhich could be used in designing finline ferrite devices. 展开更多
关键词 finlineS SPECTRAL-DOMAIN immittance APPROACH Electrically gyrotropic MEDIUM MAGNETICALLY gyrotropic MEDIUM FERRITE
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Design of Ka-band antipodal finline mixer and detector 被引量:2
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作者 姚常飞 徐金平 陈墨 《Journal of Semiconductors》 EI CAS CSCD 北大核心 2009年第5期99-102,共4页
This paper mainly discusses the analysis and design of a finline single-ended mixer and detector. In the circuit, for the purpose of eliminating high-order resonant modes and improving transition loss, metallic via ho... This paper mainly discusses the analysis and design of a finline single-ended mixer and detector. In the circuit, for the purpose of eliminating high-order resonant modes and improving transition loss, metallic via holes are implemented along the mounting edge of the substrate embedded in the split-block of the WG-finline-microstrip transition. Meanwhile, a Ka band slow-wave and bandstop filter, which represents a reactive termination, is designed for the utilization of idle frequencies and operation frequencies energy. Full-wave analysis is carded out to optimize the input matching network of the mixer and the detector circuit using lumped elements to model the nonlinear diode. The exported S-matrix of the optimized circuit is used for conversion loss and voltage sensitivity analysis. The lowest measured conversion loss is 3.52 dB at 32.2 GHz; the conversion loss is flat and less than 5.68 dB in the frequency band of 29-34 GHz. The highest measured zero-bias voltage sensitivity is 1450 mV/mW at 38.6 GHz, and the sensitivity is better than 1000 mV/mW in the frequency band of 38-40 GHz. 展开更多
关键词 conversion loss voltage sensitivity antipodal finline harmonic balance analysis
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三种超宽带正交模耦合器的特性分析与研究
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作者 俞亚庆 龚书喜 +1 位作者 姜文 张帅 《微波学报》 CSCD 北大核心 2016年第S1期298-301,共4页
本文在综合Turnstile型、BФifot型、Finline型等三种正交模耦合器(Ortho-mode transducer,OMT)的发展现状及其优缺点的基础上,选取Turnstile型OMT作为优先研制方案,仿真设计了工作于30 GHz-50 GHz频段的超宽带正交模耦合器。结果显示,... 本文在综合Turnstile型、BФifot型、Finline型等三种正交模耦合器(Ortho-mode transducer,OMT)的发展现状及其优缺点的基础上,选取Turnstile型OMT作为优先研制方案,仿真设计了工作于30 GHz-50 GHz频段的超宽带正交模耦合器。结果显示,设计频段内的双极化端口反射系数均小于-20 d B,隔离度大于53 d B,插入损耗小于0.15 d B,输出端口交叉极化电平小于-53 d B。 展开更多
关键词 Turnstile型 BФifot型 finline 超宽带正交模耦合器
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