A Compact Wideband Microstrip Filter Using Folded Multiple-Mode Resonator
A Compact Wideband Microstrip Filter Using Folded Multiple-Mode Resonator
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使用折叠多模谐振器的紧凑宽带微带滤波器
DOI：
10.1109/lmwc.2009.2017591
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发表时间：
2009-05-01
影响因子：
3
通讯作者：
Gong, Jian-Qiang
中科院分区：
文献类型：
--
作者：
Wang, Huan;Chu, Qing-Xin;Gong, Jian-Qiang
提出了一种采用折叠多模谐振器的小型化宽带微带滤波器。该滤波器只包含一个谐振器，它不仅作为谐振元件，但也开放短截线。该滤波器同时实现了宽通带、紧凑尺寸和在上、下阻带处的两个传输零点。通过简单的传输线方程，详细研究了传输零点机制。文中给出了一个清晰的等效电路，可用于滤波器的分析和初步设计。所制作的滤波器具有体积小、裙缘尖等优点。
A compact wideband microstrip filter using a folded multiple-mode resonator is proposed. The filter contains only one resonator, which operates as not only a resonant element but also an open stub. The filter simultaneously realizes a broad passband, a compact size, and two transmission zeros at both the lower and upper stopbands. The transmission zero mechanism is investigated in detail through the simple transmission line equation. A lucid equivalent circuit is given both for analysis and initial design of the proposed filter. The fabricated filter shows the merits which are listed as follows: compact size and sharp skirts.