Open AccessCoupled‐line dual‐band bandpass filter with compact structure and wide stopband
Author(s) -
Wu Yongle,
Zhou Siyue,
Zhang Weiwei,
Liao Mengbi,
Liu Yuanan
Publication year - 2014
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2013.3791
Subject(s) - stopband , band pass filter , microstrip , transition band , elliptic filter , electronic filter topology , band stop filter , electronic engineering , filter (signal processing) , prototype filter , m derived filter , materials science , optoelectronics , topology (electrical circuits) , physics , computer science , low pass filter , electrical engineering , engineering
A novel dual‐band bandpass filter with a compact structure and a wide stopband is proposed. The total structure includes coupled‐line stubs and coupled‐line connected sections, leading to a compact circuit. This proposed filter can be implemented easily by using single‐layer microstrip technology. The measured results of a prototype filter show that it can operate at both 1.32 and 2.67 GHz and up to the 8 GHz 15 dB stopband.