A compact low pass filter with good stopband performance using an open-loop-arms defected ground structure unit

Author

Mou Jin-chao ; Yu Wei-hua ; Sun Hou-jun ; Lv Xin

Author_Institution

Sch. of Inf. & Electron., Beijing Inst. of Technol., Beijing, China

fYear

2009

fDate

27-29 Oct. 2009

Firstpage

462

Lastpage

465

Abstract

A novel compact wideband high-rejection lowpass filter (LPF) using open-loop-arms defected ground structure (DGS) is presented. The performance of the proposed open-loop-arms DGS is analyzed, which shows deeper rejection and larger Q-factor. An equivalent circuit model has been given. Some dimensions of the DGS are studied. In order to show the validity of the proposed DGS, an optimized LPF is designed, the measured result of which shows a good agreement with the simulated result.

Keywords

Q-factor; defected ground structures; equivalent circuits; low-pass filters; Q-factor; compact low pass filter; defected ground structure unit; equivalent circuit; open-loop-arms; stopband performance; wideband high-rejection filter; Attenuation; Capacitance; Circuit simulation; Design optimization; Equivalent circuits; Frequency; Inductance; Low pass filters; Microwave filters; Q factor; Defected Ground Structure (DGS); Low Pass Filter; Open-loop-arms DGS;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2009 3rd IEEE International Symposium on

Conference_Location

Beijing

Print_ISBN

978-1-4244-4076-4

Type

conf

DOI

10.1109/MAPE.2009.5355914

Filename

5355914