Ultra-wide stopband in a compact low pass filter using stepped impedance resonators and novel techniques

Author

Murphy, Luke ; Yazdani, Mohsen ; Arvas, Ercument

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Syracuse Univ., Syracuse, NY, USA

fYear

2012

fDate

17-20 Sept. 2012

Firstpage

92

Lastpage

94

Abstract

The design procedure of a compact ultra-wideband (UWB) stepped impedance resonator (SIR) low pass filter, is presented in this paper. A SIR LPF with 7 GHz cutoff frequency miniaturized by meander line technique is designed and it is shown that offsetting the stepped impedance resonators, as well as indenting the tap location greatly improve rejection bandwidth. Offsetting input lines further maximizes rejection bandwidth. The proposed filter is simulated in Sonnet EM software, fabricated, and tested on a high dielectric ceramic. The results show an improved stopband performance compared with similar topologies with a drastic size reduction in the filter.

Keywords

low-pass filters; resonator filters; ultra wideband technology; SIR LPF; SIR low pass filter; Sonnet EM software; UWB stepped impedance resonator; compact low pass filter; compact ultra-wideband SIR; frequency 7 GHz; high dielectric ceramic; meander line technique; rejection bandwidth; ultra-wide stopband; Band pass filters; Bandwidth; Harmonic analysis; Impedance; Microwave filters; Power harmonic filters; Resonator filters; LPF; Passive Circuits; Stepped Impedance; UWB;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultra-Wideband (ICUWB), 2012 IEEE International Conference on

Conference_Location

Syracuse, NY

ISSN

2162-6588

Print_ISBN

978-1-4577-2031-4

Type

conf

DOI

10.1109/ICUWB.2012.6340430

Filename

6340430