Vol. 44

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2013-10-17

Two Kinds of Dual-Band Bandpass Filter Based on a Single Square Ring Resonator

By Kun Deng, Shou Jia Sun, Shuai Yang, Bian Wu, and Chang-Hong Liang
Progress In Electromagnetics Research C, Vol. 44, 251-261, 2013
doi:10.2528/PIERC13092506

Abstract

In this paper, two kinds of dual-band bandpass filter (BPF) based on a single square ring resonator are presented, which are realized by loading capacitance or inductive stubs, respectively. Even-odd-mode analysis is applied to explain their model characteristics. One filter is implemented by loading a pair of capacitance stubs, and both in-band couplings can be tuned in a reasonable range. Another filter is completed by loading a pair of inductive stubs, and the first and second passband center frequencies can be controlled independently. For demonstration, two filters operating at 2.45/5.25 GHz and 2.4/5.25 GHz are designed and fabricated. The simulated and measured results show good agreements.

Citation


Kun Deng, Shou Jia Sun, Shuai Yang, Bian Wu, and Chang-Hong Liang, "Two Kinds of Dual-Band Bandpass Filter Based on a Single Square Ring Resonator," Progress In Electromagnetics Research C, Vol. 44, 251-261, 2013.
doi:10.2528/PIERC13092506
http://jpier.org/PIERC/pier.php?paper=13092506

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