Title :
A novel miniature ultra-wideband microstrip filter using a short-ended interdigital coupled-line unit
Author :
Zaifeng Yang ; Zhewang Ma ; Luhong Zhang ; Xuexia Yang
Author_Institution :
Sch. of Commun. & Inf. Eng., Shanghai Univ., Shanghai, China
Abstract :
In this paper, a novel miniature ultra-wideband (UWB) microstrip bandpass filter is proposed. The filter consists of a short-ended interdigital coupled-line unit fed by stepped-impedance lines. Through adjusting the stepped-impedance feed lines, an ultra wide passband with equal-ripples can be obtained. The filter also has multiple transmission zeros on both sides of the passband, exhibiting favorable passband skirt property. The filter is fabricated, and its measured results show good agreement with the simulated responses.
Keywords :
band-pass filters; microstrip filters; poles and zeros; miniature ultra wideband microstrip bandpass filter; passband skirt property; short-ended interdigital coupled-line unit; stepped impedance feed lines; transmission zeros; ultra wide passband; Band-pass filters; Feeds; Filtering theory; Microstrip filters; Passband; Resonator filters; Ultra wideband technology; Ultra-wideband; bandpass filter; microstrip interdigital coupled-lines; stepped-impedance; transmission zero;
Conference_Titel :
Radio-Frequency Integration Technology (RFIT), 2014 IEEE International Symposium on
Conference_Location :
Hefei
DOI :
10.1109/RFIT.2014.6933262
