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首页> 外文期刊>IEEE Transactions on Microwave Theory and Techniques >Design of Compensated Coupled-Stripline 3-dB Directional Couplers, Phase Shifters, and Magic-T's—Part I: Single-Section Coupled-Line Circuits
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Design of Compensated Coupled-Stripline 3-dB Directional Couplers, Phase Shifters, and Magic-T's—Part I: Single-Section Coupled-Line Circuits

机译：补偿耦合带状3 dB定向耦合器，移相器和Magic-T的设计-第一部分：单节耦合线电路

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摘要

The problem of discontinuities in coupled-stripline 3-dB directional couplers, phase shifters, and magic-T's, regarding the connections of coupled and terminating signal lines, has been comprehensively investigated for the first time. The proposed equivalent circuit of these discontinuities, of which parameters can be computed in a process of fitting curves of the circuit and electromagnetic analyses, has been used for accurate modeling of coupled-stripline circuits. It has been shown that parasitic reactances, which result from connections of signal and coupled lines, severely deteriorate the return losses and the isolation of such circuits, and that these discontinuity effects can be substantially reduced by connecting compensating shunt capacitances to both coupled and signal lines. Results of measurements carried out for various designed and manufactured coupled-line circuits are most promising and prove the efficiency of the proposed compensation technique. This paper describes the technique of capacitive compensation of discontinuity effects in single-section coupled-line circuits
机译：关于耦合和终止信号线的连接，已首次全面研究了耦合带状线3 dB定向耦合器，移相器和magic-T的不连续性问题。所提出的这些不连续性的等效电路已经可以用于耦合带状线电路的精确建模，在电路的拟合曲线和电磁分析过程中可以计算出这些不连续性的参数。已经表明，由于信号线和耦合线的连接而产生的寄生电抗严重恶化了这种电路的回波损耗和隔离度，并且通过将补偿并联电容连接到耦合线和信号线，可以大大降低这些不连续性的影响。 。对各种设计和制造的耦合线路电路进行的测量结果是最有希望的，并证明了所提出的补偿技术的效率。本文介绍了单节耦合线路电路中不连续效应的电容补偿技术。

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