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Progress In Electromagnetics Research Letters
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COMPLEMENTARY SPLIT RING RESONATORS WITH DUAL MESH-SHAPED COUPLINGS AND DEFECTED GROUND STRUCTURES FOR WIDE PASS-BAND AND STOP-BAND BPF DESIGN

By J.-C. Liu, H.-C. Lin, and B.-H. Zeng

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Abstract:
Novel configurations of complementary split ring resonator (CSRR) with dual mesh-shaped couplings and defected ground structures (DGS) are introduced to design the high performance of wide pass-band and stop-band band pass filters (BPF). This paper presents a low insertion loss (-0.82 dB), symmetry and sharper transmission zero level (-51.88 dB), using effective DGS and alternative coupling for CSRR. The filter with center frequency at 1.92 GHz, pass-band from 1.21 GHz to 3.05 GHz (BW = 95.8%) and wider stop-band (extended to 4.2f0 below -20 dB rejection level) is designed and fabricated. Simulation and measured results including surface current distributions and frequency responses are presented and discussed.

Citation:
J.-C. Liu, H.-C. Lin, and B.-H. Zeng, "Complementary Split Ring Resonators with Dual Mesh-Shaped Couplings and Defected Ground Structures for Wide Pass-Band and Stop-Band BPF Design," Progress In Electromagnetics Research Letters, Vol. 10, 19-28, 2009.
doi:10.2528/PIERL09060402

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