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2020-02-03

Design of a Compact 5.7-5.9 GHz Filter Based on CRLH Resonator Units

By Shanwen Hu, Yiting Gao, Xinlei Zhang, and Bo Zhou
Progress In Electromagnetics Research Letters, Vol. 89, 141-149, 2020
doi:10.2528/PIERL19110502

Abstract

A compact substrate integrated waveguide (SIW) filter based on composite right/left-handed (CRLH) resonator units is implemented in this paper. The filter is composed of two CRLH resonator units serially connected by a SIW transmission line unit. The structure of the filter and equivalent circuit transmission behavior are analyzed, and a novel design method by optimizing the length and width of the interdigital metal slots to decrease the filter operation frequency is proposed. To further demonstrate the design theory and performance of the proposed filter, the filter was designed and fabricated on an RT6010 dielectric material. The measurement results show that the proposed filter works at a center frequency of 5.8 GHz with 200 MHz bandwidth. The insertion loss is 2.3 dB, and the filter size is only 10 mm × 7.4 mm.

Citation


Shanwen Hu, Yiting Gao, Xinlei Zhang, and Bo Zhou, "Design of a Compact 5.7-5.9 GHz Filter Based on CRLH Resonator Units," Progress In Electromagnetics Research Letters, Vol. 89, 141-149, 2020.
doi:10.2528/PIERL19110502
http://jpier.org/PIERL/pier.php?paper=19110502

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