Design of Triple-band Bandpass Filter Using Trn-section Stepped-Impedance Resonators

Author

Lin, Xue Ming ; Chu, Qing Xin

Author_Institution

South China Univ. of Technol., Guangzhou

fYear

2007

fDate

18-21 April 2007

Firstpage

1

Lastpage

3

Abstract

On the basis of tri-section stepped-impedance resonator (SIR), a novel triple-band bandpass filter (BPF) is presented, which has a triple-band feature of three passbands at desired frequencies and high out-of-band suppression. The new coupling scheme at the input and output can improve the performance of the BPF, and the hairpin structure helps to reduce the size. A microstrip filter was designed and simulated, proving the concept in an excellent way. The prototype of the BPF achieved insertion loss of 2.2, 1.8 and 1.7 dB at 1.0, 2.4, 3.6 GHz, respectively.

Keywords

band-pass filters; microstrip filters; resonators; frequency 1.0 GHz; frequency 2.4 GHz; frequency 3.6 GHz; insertion loss; loss 1.7 dB; loss 1.8 dB; loss 2.2 dB; microstrip filter; tri-section stepped-impedance resonators; triple-band bandpass filter; Band pass filters; Couplings; Dual band; Impedance; Microstrip filters; Microwave filters; Passband; Radio frequency; Resonator filters; Wireless communication; Triple-band filter; bandpass filter (BPF); hairpin; microstrip; stepped-impedance resonator (SIR);

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology, 2007. ICMMT '07. International Conference on

Conference_Location

Builin

Print_ISBN

1-4244-1049-5

Electronic_ISBN

1-4244-1049-5

Type

conf

DOI

10.1109/ICMMT.2007.381479

Filename

4266238