A novel compact ring dual-mode filter with adjustable second-passband for dual-band applications

Author

Huang, Tsung-Hui ; Chen, Han-Jan ; Chang, Chin-Sheng ; Chen, Lih-Shan ; Wang, Yeong-Her ; Houng, Mau-Phon

Author_Institution

Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan

Volume

16

Issue

6

fYear

2006

fDate

6/1/2006 12:00:00 AM

Firstpage

360

Lastpage

362

Abstract

In this letter, a novel compact ring dual-mode with adjustable second-passband for dual-band applications are presented. A ring resonator with two different geometric dimensions are derived and designed to have identical fundamental and the first higher-order resonant frequencies, and to establish appropriate couplings in the structure. Moreover, the proposed filter has smaller size as compared with the basic topology of stopband filters and stepped-impedance-resonator (SIR) filters. The measured filter performance is in good agreement with the simulated response.

Keywords

microwave filters; resonator filters; compact ring dual-mode filter; dual band applications; geometric dimensions; ring resonator; stepped impedance resonator filters; stopband filters; Band pass filters; Circuits; Dual band; Impedance; Microwave filters; Passband; Radio frequency; Resonant frequency; Resonator filters; Transceivers; Dual-band; dual-mode; filter; stepped-impedance-resonator (SIR);

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2006.875607

Filename

1637495