Compact Quad-Band Bandpass Filter Using Open- And Short-Stub-Loaded Resonators

Gao, Li; Zhang, X. Y.; Zhang, Y.-B.

doi:10.1080/09205071.2012.710379

Cited by 3 publications

(1 citation statement)

References 6 publications

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“…As important building blocks of wireless communication systems, bandpass filters (BPFs) have gained a lot of attention. Much research has been conducted, such as UWB filters [1][2][3][4], miniaturized filters [5,6] and multi-band filters [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24]. With the deployment of multi-band wireless system, the capabilities of accessing multi-band frequencies are needed to reduce the number of components in RF systems.…”

Section: Introductionmentioning

confidence: 99%

Novel Tri-Band Bandpass Filter Using Stub-Loaded Short-Ended Resonator

Zhang¹,

Gao²,

Cai³

et al. 2013

PIER Letters

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This paper presents a tri-band bandpass filter (BPF) using a novel stub-loaded resonator. Different from other stub-loaded resonator, this resonator utilized a short-ended main transmission line and a centerly-loaded open stub. The resonator is theoretically analyzed. The first three resonant frequencies can be individually adjusted and this enables the convenient designs of tri-band BPFs. For demonstration, a tri-band BPF is implemented. Transmission zeros are created close to each passband edge, resulting in high skirt selectivity. Comparisons of the measured and simulated results are presented to verify the theoretical predications.

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