Compact slow-wave millimeter-wave bandpass filter (BPF) using open-loop resonator

H. Shaman, W. Alomar, A. AlAmoudi, S. Almorqi, S. Alshebeili
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引用次数: 2

Abstract

A compact slow-wave millimeter-wave bandpass filter for wireless communication systems is developed and proposed in this paper. The filter is based on an open-loop resonator that is composed of a microstrip line with both ends loaded with folded open stubs. The folded arms of the open stubs are utilized to increase the loading capacitance to ground. In addition, the folded arms of the open stubs are also used to introduce cross couplings. The cross couplings can create transmission zeros at the edges of the desired passband. As a result, the filter can exhibit a passband with sharp rejection skirts. The filter is designed to have a fractional bandwidth of about 3.3% at a center frequency of 30.0 GHz. The filter design is realized using Rogers RT6002 substrate with a dielectric constant of 2.94 and a thickness of 0.127 mm. The filter design is successfully fabricated using the printed circuit board (PCB) technology. The fabricated filter is measured and an excellent agreement between the simulated and measured results is achieved. The fabricated filter has the advantages of compact size and excellent performance.
采用开环谐振器的紧凑型慢波毫米波带通滤波器(BPF)
本文研制并提出了一种适用于无线通信系统的紧凑型慢波毫米波带通滤波器。该滤波器基于一个开环谐振器,该谐振器由微带线组成,微带线两端装有折叠的开桩。开存根的折叠臂被用来增加对地的负载电容。此外,开放式存根的折叠臂也用于引入交叉耦合。交叉耦合可以在期望通带的边缘产生传输零点。因此,该滤波器可以表现出具有锐利抑制裙的通带。该滤波器在中心频率为30.0 GHz时的分数带宽约为3.3%。滤波器的设计采用Rogers RT6002衬底,其介电常数为2.94,厚度为0.127 mm。利用印刷电路板(PCB)技术成功地制作了滤波器设计。对所制备的滤波器进行了实测,仿真结果与实测结果吻合良好。所制备的过滤器具有体积小、性能好等优点。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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