A novel ultra-wideband (UWB) ring resonator bandpass filter with improved in-band and out-of-band performance

Author

Meng, Lifang ; Xu, Jun ; Gao, Ming

Author_Institution

Sch. of Phys. Electron., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

fYear

2011

fDate

9-11 Sept. 2011

Firstpage

4108

Lastpage

4110

Abstract

This letter proposes a novel ultra-wideband (UWB) bandpass filter (BPF) using a ring resonator with improved in band and out-of-band performances. A ring resonator is structured to equally allocate its first three resonant frequencies in the 3.47-10.47-GHz UWB band. Two capacitive-ended interdigital coupled lines are then made up to assign their transmission zero towards the fourth-order resonant frequency, finally suppressing the first spurious passband. Moreover, a two- stage UWB BPF is designed to obtain improved out-of-band performances.

Keywords

band-pass filters; resonator filters; ultra wideband technology; UWB ring resonator; bandpass filter; in-band-band performance; out-of-band performance; resonant frequency; ultra-wideband ring resonator; Band pass filters; Insertion loss; Microwave filters; Optical ring resonators; Resonant frequency; Resonator filters; Ultra wideband technology; bandpass filter (BPF); in-band; interdigital coupled line; out-of-band; ring resonator; ultra-wideband (UWB);

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Communications and Control (ICECC), 2011 International Conference on

Conference_Location

Ningbo

Print_ISBN

978-1-4577-0320-1

Type

conf

DOI

10.1109/ICECC.2011.6066773

Filename

6066773