Compact Microstrip UWB Bandpass Filter With Dual Notched Bands Using E-Shaped Resonator

Author

Junding Zhao ; Jianpeng Wang ; Gang Zhang ; Jia-Lin Li

Author_Institution

Ministerial Key Lab. of JGMT, Nanjing Univ. of Sci. & Technol., Nanjing, China

Volume

23

Issue

12

fYear

2013

fDate

Dec. 2013

Firstpage

638

Lastpage

640

Abstract

A new microstrip ultra-wideband (UWB) bandpass filter (BPF) with two sharp notches using E-shaped resonator is proposed in this letter. The circuit topology and its corresponding electrical parameters of the initial microstrip UWB BPF are achieved by a variation of genetic algorithm (GA). Then, the resonance properties of the E-shaped resonator are studied. Results reveal that the multiple-mode property of the E-shaped resonator can be utilized in the UWB BPF design to achieve dual band-notched performance. To validate the design concept, a microstrip UWB BPF with two notched bands respectively centered at frequencies of 5.9 GHz and 8.0 GHz is designed and fabricated. Both simulation and experimental results are provided with good agreement.

Keywords

band-pass filters; genetic algorithms; microstrip circuits; microstrip filters; microwave filters; network synthesis; notch filters; resonator filters; ultra wideband technology; E-shaped resonator; GA; circuit topology; dual notched band; electrical parameter; frequency 5.9 GHz; frequency 8.0 GHz; genetic algorithm; microstrip UWB BPF; microstrip ultrawideband bandpass filter; multiple-mode property; Band-pass filters; Genetic algorithms; Microstrip filters; Resonant frequency; Ultra wideband communication; Wireless communication; Bandpass filter (BPF); E-shaped resonator; genetic algorithm (GA); ultra-wideband (UWB);

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2013.2283873

Filename

6624125