CAJ | 학술논문

基于电磁场理论求解同轴连接器的截止频率，在同轴连接器与同轴电缆阻抗相匹配的前提下，利用MATLAB软件绘制网格图分析和研究了同轴连接器的内导体外径、外导体内径以及填充介质相对介电常数对其上限工作频率的影响规律，并提出了3种有效展宽工作频带的途径。该文还对固定尺寸的同轴夹具这类特殊的连接器在材料电磁参数测量领域的应用进行了研究，结果表明，填充在同轴夹具中的待测样品难以使得连接器和电缆的阻抗严格匹配，并且随着待测试样介电常数εr 的提高，同轴连接器的工作频带随之缩小1/εr 。
기우전자장이론구해동축련접기적절지빈솔，재동축련접기여동축전람조항상필배적전제하，이용MATLAB연건회제망격도분석화연구료동축련접기적내도체외경、외도체내경이급전충개질상대개전상수대기상한공작빈솔적영향규률，병제출료3충유효전관공작빈대적도경。해문환대고정척촌적동축협구저류특수적련접기재재료전자삼수측량영역적응용진행료연구，결과표명，전충재동축협구중적대측양품난이사득련접기화전람적조항엄격필배，병차수착대측시양개전상수εr 적제고，동축련접기적공작빈대수지축소1/εr 。
The cut-off frequency is soluted based on electromagnetic field theory,and network line is presented to analyze the relationships among coaxial connector’s cut-off frequency,the outer diameter of the inner conductor,the inner diameter of the outer conductor and the relative permittivity of the filled medium on the condition that impedance matched between coaxial connector and coaxial cable,which shows their relationships apparently.Finally,Three ways proposed so as to expand its working frequency band effectively. In addition, coaxial fixture at fixed size is studied in the field of electromagnetic parameters measurement,the result has shown that samples filled in the coaxial fixture are difficult to make the connector’s impedance exactly match with cable’s,and coaxial connector’s working frequency band reduces while the permittivity of test samples improved.