Vol. 95

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2021-01-13

Dual-Band Bandpass Filter Design Using Stub-Loaded Hairpin Resonator and Meandering Uniform Impedance Resonator

By Yun Xiu Wang, Yuan Li Chen, Wen Hui Zhou, Wei Chao Yang, and Jin Zen
Progress In Electromagnetics Research Letters, Vol. 95, 147-153, 2021
doi:10.2528/PIERL20102102

Abstract

A novel microstrip dual-band bandpass filter (BPF) by coupling a stub-loaded hairpin resonator and two stub-loaded uniform impedance resonators (UIRs) is proposed. First, a open-ended stub is tap-connected to a meandering UIR at its centre, and these two stub-loaded meandering UIRs are further placed at symmetrical locations with respect to a stub-loaded hairpin resonator. Secondly, by introducing two parallel coupled lines at the two sides of the stub-loaded hairpin resonator, a dual-band BPF with two passbands at 2.4 GHz and 5.2 GHz is constructed. Finally, a prototype filter is designed and fabricated, and its measured results are provided to verify the predicted dual-band filter design.

Citation


Yun Xiu Wang, Yuan Li Chen, Wen Hui Zhou, Wei Chao Yang, and Jin Zen, "Dual-Band Bandpass Filter Design Using Stub-Loaded Hairpin Resonator and Meandering Uniform Impedance Resonator," Progress In Electromagnetics Research Letters, Vol. 95, 147-153, 2021.
doi:10.2528/PIERL20102102
http://jpier.org/PIERL/pier.php?paper=20102102

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