Open AccessMicrostrip dual‐band bandpass filter with E‐shaped multimode resonator
Author(s) -
Liu H.W.,
Li S.,
Ren B.P.
Publication year - 2013
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.2013.0288
Subject(s) - band pass filter , passband , resonator , multi mode optical fiber , microstrip , bandwidth (computing) , multi band device , electronic engineering , gsm , physics , optoelectronics , computer science , optics , telecommunications , engineering , optical fiber , antenna (radio)
A microstrip dual‐band bandpass filter (BPF) using two E‐shaped multimode resonators (MMRs) is presented. Each MMR can not only generate one passband, but also independently control the bandwidth. By utilising the odd‐mode and even‐mode resonance properties of the proposed MMR, a simple design procedure is described. Besides, two transmission zeros are created owing to the intrinsic characteristic of the proposed resonator. To validate the design theory, a dual‐band BPF for GSM and WLAN applications was designed, analysed and fabricated. Measurements have good agreement with simulations.