Ultra-wideband (UWB) bandpass filter based on stub-loaded ring resonator

Author

He Zhu ; Qing-Xin Chu

Author_Institution

Sch. of Electron. & Inf. Eng., South China Univ. of Technol., Guangzhou, China

fYear

2013

fDate

14-18 April 2013

Firstpage

1

Lastpage

4

Abstract

An ultra-wideband (UWB) bandpass filter with a notch-band and wide upper stopband is presented in this paper. The UWB filter is realized using a ring resonator which is loaded with two sets of stubs, i.e. one is loaded in the center and two little stubs at the symmetrical side locations. The loaded stubs are used to create transmission zeros in upper stopband thus high modes are suppressed greatly. Moreover, two identical meandered resonators are inserted within the stub-loaded ring resonator, creating a notch-band around 5.8 GHz. Finally, two UWB filters with and without notch-band are simulated, fabricated, and measured results provide an experimental validation of predicted performance of the filter.

Keywords

band-pass filters; notch filters; resonator filters; ultra wideband technology; UWB filter; meandered resonators; notch-band; stub-loaded ring resonator; transmission zeros; ultrawideband bandpass filter; upper stopband; Band-pass filters; Bandwidth; Filtering theory; Optical ring resonators; Passband; Resonator filters; Ultra wideband technology; Bandpass filter (BPF); Notch-band; Stub-loaded ring resonator (SLRR); Ultra-wideband (UWB);

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Symposium (IWS), 2013 IEEE International

Conference_Location

Beijing

Type

conf

DOI

10.1109/IEEE-IWS.2013.6616757

Filename

6616757