Title :
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
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;
Conference_Titel :
Region 10 Symposium, 2014 IEEE
Conference_Location :
Kuala Lumpur
Print_ISBN :
978-1-4799-2028-0
DOI :
10.1109/TENCONSpring.2014.6862986
