Vol. 24

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2011-09-10

Miniaturized Dual-Mode Resonators with Improved Double Square Loop and Inter-Digital Couple for WLAN Dual-Bands

By Ji-Chyun Liu, Kuan-Dih Yeh, Chih-Chi Yen, Chin-Yen Liu, Bing-Hao Zeng, and Chih-Chiang Chen
Progress In Electromagnetics Research C, Vol. 24, 123-136, 2011
doi:10.2528/PIERC11081006

Abstract

A novel dual-mode double square loop resonator (DMDSLR) for dual-band band-pass filter (BPF) is presented in this paper. The simple meander loop in DMDSLR is studied to improve the performance of the conventional DMDSLR. Significant size reductions over 33% are achieved. In addition, the designed meander-loop DMDSLR filter shows lower insertion loss (2.24 and 2.28 dB), higher rejection level (28/56 dB and 53/36 dB), wider bandwidth (about 8.5% and 28%) at the 2.47 and 5.47 GHz bands, respectively. Two transmission zeros are placed between the two pass-bands and result in a good isolation.

Citation


Ji-Chyun Liu, Kuan-Dih Yeh, Chih-Chi Yen, Chin-Yen Liu, Bing-Hao Zeng, and Chih-Chiang Chen, "Miniaturized Dual-Mode Resonators with Improved Double Square Loop and Inter-Digital Couple for WLAN Dual-Bands," Progress In Electromagnetics Research C, Vol. 24, 123-136, 2011.
doi:10.2528/PIERC11081006
http://jpier.org/PIERC/pier.php?paper=11081006

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