A novel compact ultra-wideband bandpass filter using microstrip stub-loaded triple-mode resonator doublets

Author

Zhou, Y.X. ; Qu, D.X. ; Zhong, X.J. ; Ye, J.D. ; Li, K.

Author_Institution

Microwave Commun. Dept., PLA UST, Nanjing, China

fYear

2015

fDate

March 30 2015-April 1 2015

Firstpage

1

Lastpage

4

Abstract

Two novel compact ultra-wideband (UWB) bandpass filter is developed by using two kinds of stub-loaded triple-mode resonator doublets. The proposed doublet consists of two parallel but oppositely arranged stub-loaded resonators. An UWB filter is designed by cascading three doublets, and eleven transmission poles are obtained in its passband. The high-orders filter has a passband covering 3.4-10.4 GHz, and exhibits sharp attenuations near its passband. The simulation frequency response of the filter shows an insertion loss of 0.8 dB, a return loss of 9.5 dB in the passband and high selectivity in cut-off frequency. Good agreement between the EM simulation and measurement is obtained.

Keywords

band-pass filters; ultra wideband communication; UWB bandpass filter; cut-off frequency; high orders filter; microstrip stub loaded triple mode resonator doublets; novel compact ultrawideband bandpass filter; simulation frequency; Band-pass filters; Microstrip filters; Microwave filters; Passband; Resonant frequency; Resonator filters; Ultra wideband technology; Ultra-wideband filter; doublets; microstrip filter; shunt stub-loaded resonator (SLR); stepped-impedance stub-loaded resonator (SISLR); triple-mode resonator;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Symposium (IWS), 2015 IEEE International

Conference_Location

Shenzhen

Type

conf

DOI

10.1109/IEEE-IWS.2015.7164531

Filename

7164531