Title :
A dual-band bandpass filter with novel resonators arrangement
Author :
Xu, Hongzhi ; Tang, Wei
Author_Institution :
Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
In this paper, by using novel arrangements of two microstrip resonators, a dual-band bandpass filter is presented. By placing a couple of open-circuited stubs to the corner points of a hexangular loop resonator, the resonator structures have been formed. By means of moving gaps between the open-circuited stubs to obtain a perturbation effect, two mode frequencies and transmission zero points emerged. By using two resonators, this filter has two different passbands. Although there are two resonators, only have one feed-line. This means the two resonators share the same feed-lines. By arrange one resonator into the other, designed dual-band bandpass microstrip filters have a compact size of 12mm × 10.39mm surface area and such a configuration has been satisfied a compact structure. Several figures are demonstrated to show the simulation results.
Keywords :
band-pass filters; microstrip filters; microstrip resonators; compact structure; dual band bandpass microstrip filter; feed line; hexangular loop resonator; microstrip resonator; open circuited stubs; passband; perturbation effect; resonator arrangement; resonator structure; transmission zero points; Band pass filters; Filtering theory; Microstrip filters; Microwave filters; Passband; Resonant frequency; Resonator filters; Dual-band bandpass filters; miniaturization; open-circuited resonators;
Conference_Titel :
Microwave and Millimeter Wave Circuits and System Technology (MMWCST), 2012 International Workshop on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4673-1893-8
DOI :
10.1109/MMWCST.2012.6238132
