Title: Novel DGS-CSRR-based microstrip low pass filter with ultra wide suppression

Authors: Ying Xu, Arokiaswami Alphones

Addresses: School of Electrical and Electronic Engineering, Nanyang Technological University, Block S1, 50 Nanyang Avenue, 639798, Singapore. ' School of Electrical and Electronic Engineering, Nanyang Technological University, Block S1, 50 Nanyang Avenue, 639798, Singapore

Abstract: A novel structure combining defected ground plane structures and complementary split ring resonators (CSRRs) is presented in this paper. It is shown that the DGS-CSRR low pass filters suppress the spurious response in the stopband and exhibit a much wider stopband compared to conventional DGS filters. The DGS-CSRR low pass filters are designed and fabricated. Good agreement between the simulated and measured data has been observed. The 3 to 10 GHz suppression can be exploited in suppressing the interference from UWB bands in the coexistence scenario of mobile, WLAN and UWB systems.

Keywords: complementary split ring resonators; CSRRs; low pass filters; defected ground plane structures; ultra wide suppression; stopband; ultra wideband systems.

DOI: 10.1504/IJUWBCS.2010.031815

International Journal of Ultra Wideband Communications and Systems, 2010 Vol.1 No.3, pp.169 - 172

Published online: 24 Feb 2010 *

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