Sextuple-mode ultra-wideband bandpass filter with wide upper stopband

Author

Sui Hian Kuek, Albin ; Hieng Tiong Su ; Haldar, Manas Kumar

Author_Institution

Sarawak Campus, Fac. of Eng., Swinbume Univ. of Technol., Kuching, Malaysia

fYear

2014

fDate

14-16 April 2014

Firstpage

1

Lastpage

5

Abstract

A sextuple-mode ultra-wideband bandpass filter with wide upper stopband is presented in this paper. The wide upper stopband is achieved by attaching two open-circuited stubs 90° from the feed lines inside a ring resonator. These stubs introduce two transmission zeroes above the UWB passband to enhance the upper stopband. Analytical design of the six transmission poles and two transmission zeroes is described. The filter is then fabricated on RT/Duroid 6010.2LM substrate and measured. The simulated and measured responses are in good agreement showing upper stopband greater than 20dB up to 28GHz.

Keywords

band-pass filters; band-stop filters; resonator filters; ultra wideband technology; RT-Duroid 6010.2LM substrate; UWB passband; feed line; open-circuited stub; ring resonator; sextuple-mode ultrawideband bandpass filter; transmission pole; transmission zero; wide upper stopband filter; Band-pass filters; Filtering theory; Microwave filters; Optical ring resonators; Resonator filters; Ultra wideband technology; bandpass; dual symmetry; filter; sextuple order; ultra-wideband; wide upper stopband;

fLanguage

English

Publisher

ieee

Conference_Titel

Region 10 Symposium, 2014 IEEE

Conference_Location

Kuala Lumpur

Print_ISBN

978-1-4799-2028-0

Type

conf

DOI

10.1109/TENCONSpring.2014.6862986

Filename

6862986