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2013-11-08
Microstrip Wideband Bandpass Filter Based on Square Ring Loaded Resonator
By
Progress In Electromagnetics Research Letters, Vol. 43, 175-184, 2013
Abstract
In this paper, a compact microstrip wideband bandpass filter (BPF) based on square ring loaded resonator (SRLR) is proposed. The SRLR is formed by loading a pair of bent open-stubs outside the diagonal corners of a square ring, which generates three split degenerated modes. The first two split modes form a dominant wideband passband. By introducing another pair of loaded open-stubs, the third split mode is moved into the passband to achieve an extra bandwidth for the wideband passband. Measured results show that this proposed BPF has a 3 dB fractional bandwidth of 69%, and the insertion loss of the BPF is less than 1.0 dB.
Citation
Kun Deng Jian Zhong Chen Shou Jia Sun Bian Wu Chang-Hong Liang , "Microstrip Wideband Bandpass Filter Based on Square Ring Loaded Resonator," Progress In Electromagnetics Research Letters, Vol. 43, 175-184, 2013.
doi:10.2528/PIERL13100805
http://www.jpier.org/PIERL/pier.php?paper=13100805
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