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首页> 外文期刊>International Journal of Microwave and Wireless Technologies >A triple-wideband bandpass filter with controllable bandwidths based on stub-loaded resonators
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A triple-wideband bandpass filter with controllable bandwidths based on stub-loaded resonators

机译：基于短负载谐振器的带宽可控制的三宽带滤波器

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摘要

In this paper, a triple-wideband bandpass filter (BPF) with controllable bandwidths based on two multi-mode stub-loaded resonators (MMSLRs) and a triple-mode resonator is presented. The MMSLR is loaded with two identical folded open-ended stubs and a T-shaped stub. Each passband of the tri-band BPF is formed by four resonant modes, which provide sufficient bandwidths to meet various application requirement. By adjusting the lengths of open-ended stubs, three passband bandwidths can be controlled individually. The center frequencies of the triple-wideband BPF are allocated at 2.7, 3.67, and 5.44 GHz, with the 3 dB fractional bandwidths (FBWs) of 20.1, 14.7, and 26.3%. Among the three passbands, the highest one covers the 5 G WiFi band (5.15-5.85 GHz). The measured results of the proposed filter exhibit excellent agreement with simulated results.
机译：本文提出了一种基于两个多模式短负载谐振器（MMSLR）和一个三模式谐振器的带宽可控的三宽带带通滤波器（BPF）。 MMSLR装有两个相同的折叠式末端存根和一个T形存根。三频BPF的每个通带由四个谐振模式形成，它们提供了足够的带宽以满足各种应用需求。通过调整开放式短截线的长度，可以分别控制三个通带带宽。三宽带BPF的中心频率分配为2.7、3.67和5.44 GHz，其中3 dB的分数带宽（FBW）分别为20.1、14.7和26.3％。在这三个通带中，最高的一个覆盖了5 G WiFi频段（5.15-5.85 GHz）。所提出的滤波器的测量结果与模拟结果显示出极好的一致性。

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