Dual-band bandstop filter using open and short stub-loaded resonators

Author

Gao, Li ; Cai, Shao Wen ; Zhang, Xiu Yin ; Xue, Quan

Author_Institution

City Univ. of HongKong Shenzhen Res. Inst., South China Univ. of Technol., Guangzhou, China

Volume

4

fYear

2012

fDate

5-8 May 2012

Firstpage

1

Lastpage

3

Abstract

Novel dual-band bandstop filters (BSF) using open and short stub-loaded resonators are presented in this paper. The even-mode resonant frequencies are utilized to generate the stopbands, while the odd-mode frequencies of the open and short stub-loaded resonators are suppressed. For open stub-loaded BSF, its second harmonic of even-mode is used as the second stopband. For short stub-loaded BSF, its third harmonic of evenmode is used as the second stopband. Both the open and short stub-loaded resonator bandstop filters have been implemented with two parallel transmission paths, which help improve the stop response. For demonstration, two dual-band bandstop filters using open and short stub-loaded resonators are implemented. Comparisons of the measured and simulated results are presented to verify the proposed design.

Keywords

band-stop filters; resonator filters; dual-band bandstop filter; even-mode resonant frequency; odd-mode frequency; open stub-loaded resonators; parallel transmission paths; short stub-loaded BSF; short stub-loaded resonator bandstop filters; Band pass filters; Dual band; Filtering theory; Microwave filters; Resonant frequency; Resonator filters; Transmission line measurements; Bandstop filter; dual-band; harmonic wave; open stub-loaded; short stub-loaded;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology (ICMMT), 2012 International Conference on

Conference_Location

Shenzhen

Print_ISBN

978-1-4673-2184-6

Type

conf

DOI

10.1109/ICMMT.2012.6230331

Filename

6230331