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

fYear

2014

fDate

27-30 Aug. 2014

Firstpage

1

Lastpage

3

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio-Frequency Integration Technology (RFIT), 2014 IEEE International Symposium on

Conference_Location

Hefei

Type

conf

DOI

10.1109/RFIT.2014.6933262

Filename

6933262