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A novel UWB Filter with H shaped defected ground structure

V. MARISELVAM1,* , S. RAJU1

Affiliation

  1. Dept of Electronics and Communication engineering, Thiagarajar College of engineering, India-15

Abstract

In this letter a novel ultra-wide band (UWB) band pass filter with compact size and improved upper stop band performance has been studied and implemented using the defected ground structure (DGS) loaded with the multimode resonator. By varying the iterations in the defected ground structure the resonant modes can be roughly allocated in 9.95-11.56 GHz In order to enhance the coupling degrees the gap between the resonators are varied to improve the insertion loss at -1.5 dB in the pass band. Meanwhile, the insertion loss is higher than 25dB in the lower stop band and the phase is ± 180º in the pass band..

Keywords

Defected ground structures, Ultra wideband filters, spur line DGS.

Submitted at: April 27, 2015
Accepted at: June 24, 2015

Citation

V. MARISELVAM, S. RAJU, A novel UWB Filter with H shaped defected ground structure, Journal of Optoelectronics and Advanced Materials Vol. 17, Iss. 7-8, pp. 1168-1172 (2015)