Title :
Compact stub type microstrip bandpass filter using defected ground plane
Author :
Abdel-Rahman, A. ; Verma, A.K. ; Boutejdar, A. ; Omar, A.S.
Author_Institution :
Chair of Microwave, Commun. Eng. Univ. of Magdeburg, Germany
fDate :
4/1/2004 12:00:00 AM
Abstract :
Usually a defected ground plane structure (DGS) provides only a band-reject response. However, in this work we introduce a simple band-accept circuit element in the DGS and developed a microstrip stub type compact 3-pole bandpass filter (BPF) at 4.2 GHz. The BPF has bandwidth and insertion loss 38% and 0.6 dB respectively. It has better than 25 dB rejection in the stopband up to 12 GHz.
Keywords :
band-pass filters; microstrip filters; 0.6 dB; 4 to 12 GHz; band-accept circuit element; band-reject response; compact stub; defected ground plane; microstrip bandpass filter; Band pass filters; Capacitance; Coupling circuits; Cutoff frequency; Equivalent circuits; Inductance; Inductors; Microstrip filters; Resonance; Resonant frequency;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2003.821503
