ABSTRACT

In this paper, a compact wideband diplexer is designed by combining two wideband filters based on stub-loaded square ring resonator (SLSRR). By adjusting the length of the stub or square ring, the passband bandwidth can be adjusted. The first channel has a center frequency of 4.3 GHz with a fractional bandwidth (FBW) of 50%. The second channel has a center frequency of 8.75 GHz with the FBW of 51.4%. The average isolation between the two channels is averagely greater than 25 dB. The designed diplexer has the advantages of easy design of wideband, simple structure, and informal matching of impedance.

中文翻译：

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紧凑型宽带双工器，使用存根加载的方环谐振器

摘要

在本文中，通过组合两个基于短负载方环谐振器（SLSRR）的宽带滤波器，设计了紧凑型宽带双工器。通过调整短截线或方环的长度，可以调整通带带宽。第一通道的中心频率为4.3 GHz，分数带宽（FBW）为50％。第二个通道的中心频率为8.75 GHz，FBW为51.4％。两个通道之间的平均隔离度平均大于25 dB。设计的双工器具有宽带设计容易，结构简单和阻抗非正式匹配的优点。