DocumentCode :
2311094
Title :
A new numerical method to improve the stopband of compact lowpass filter employing Defected Ground Structure(DGS)
Author :
Boutejdar, A. ; Elsherbini, A. ; Omar, A.S.
Author_Institution :
Univ. of Magdeburg, Magdeburg
fYear :
2007
fDate :
9-15 June 2007
Firstpage :
1553
Lastpage :
1556
Abstract :
In this paper, we present an effective technique for second harmonic suppression in a compact microstrip LPF by using a multilayer structure and several non uniform arrowhead shaped DGSs in the ground plane. The transfer function of the proposed very compact structure shows wide rejectband and sharp roll off in the transition domain. The equivalent circuit elements are extracted using simple circuit analysis method [1]. The measured results are in good agreement with the simulated results, both displaying an excellent filtering functionality of the proposed lowpass filter.
Keywords :
filtering theory; low-pass filters; transfer functions; defected ground structure; filtering functionality; lowpass filter; multilayer structure; second harmonic suppression; stopband; transfer function; Cutoff frequency; Equivalent circuits; Etching; Microstrip filters; Microstrip resonators; Nonhomogeneous media; Passband; Resonance; Resonator filters; Scattering parameters;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Antennas and Propagation Society International Symposium, 2007 IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-0877-1
Electronic_ISBN :
978-1-4244-0878-8
Type :
conf
DOI :
10.1109/APS.2007.4395804
Filename :
4395804
Link To Document :
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