Open AccessDESIGN OF COMPACT MICROSTRIP UWB BANDPASS FILTER WITH TRIPLE-NOTCHED BANDS
Author(s) -
Chengpei Tang,
Nian Yang
Publication year - 2016
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/pierl15072904
Subject(s) - band pass filter , microstrip , filter (signal processing) , electronic engineering , materials science , acoustics , engineering , electrical engineering , physics
A new microstrip ultra-wideband (UWB) bandpass filter (BPF) with triple-notched bands is presented in this paper. The circuit topology and its corresponding electrical parameters of the basic microstrip UWB BPF are designed by modified genetic algorithm (MGA). Then, triple-notched bands inside the UWB passband are implemented by coupling a novel triple-mode stepped impedance resonator (SIR) to the main transmission line of the basic microstrip UWB BPF. The triple-notched bands can be easily generated and set at any desired frequencies by varying the designed parameters of triple-mode SIR. For verification, a new microstrip UWB BPF with triple-notched bands respectively centered at frequencies of 4.4 GHz, 5.9 GHz and 8.0 GHz is designed and fabricated. Both simulated and experimental results are provided with good agreement.
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