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Progress In Electromagnetics Research Letters
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A NOVEL WIDEBAND BANDPASS FILTER USING STUB-LOADED RING RESONATOR AND TAPPED FEED

By D. Chen, L. Zhu, and C.-H. Cheng

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Abstract:
A compact wideband bandpass filter is proposed in this letter by means of short-circuited-stub loaded ring resonator and tapped feed lines. After the principle of an initial filter with wide operating bandwidth is described, a prototype filter with center frequency at 3.23 GHz and fractional bandwidth of 86.1% is designed and fabricated. Measured results well agree with the predicted ones, verifying the design principle.

Citation:
D. Chen, L. Zhu, and C.-H. Cheng, "A Novel Wideband Bandpass Filter Using Stub-Loaded Ring Resonator and Tapped Feed," Progress In Electromagnetics Research Letters, Vol. 42, 37-44, 2013.
doi:10.2528/PIERL13070601

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