A NOVEL DUAL-MODE BANDPASS FILTER USING STUB-LOADED DEFECTED GROUND OPEN-LOOP RESONATOR | Zendy

Xuehui Guan | Zendy; Bin Wang | Zendy; Xiaoyan Wang | Zendy; Shan Wang | Zendy; Haiwen Liu | Zendy

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A NOVEL DUAL-MODE BANDPASS FILTER USING STUB-LOADED DEFECTED GROUND OPEN-LOOP RESONATOR

Author(s) -

Xuehui Guan,

Bin Wang,

Xiaoyan Wang,

Shan Wang,

Haiwen Liu

Publication year - 2011

Publication title -

progress in electromagnetics research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.245

H-Index - 33

ISSN - 1937-6480

DOI - 10.2528/pierl11071402

Subject(s) - stub (electronics) , resonator , band pass filter , dual mode , helical resonator , acoustics , electronic engineering , materials science , optoelectronics , physics , engineering

A novel dual-mode bandpass filter (BPF) using stub- loaded defected ground open-loop resonator is proposed in this article. Defected arrow-shaped stub is loaded to a defected ground open- loop resonator, and two non-degenerate modes are excited for dual- mode characteristics. Based on even- and odd-mode theory, dual- mode characteristics of the resonator is analyzed. Design equations for the defected-ground resonator are investigated. A two-pole dual- mode bandpass filter operating at 2.4 GHz with fractional bandwidth of 7.97% is designed, fabricated, and measured. Good agreement between simulated and measured results verifies the validity of this design methodology.

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