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

fYear

2012

fDate

19-20 April 2012

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/MMWCST.2012.6238132

Filename

6238132