Compact Ultra-Wideband (UWB) Bandpass Filter Using Dual-Stub-Loaded Resonator (DSLR)

Author

He Zhu ; Qing-Xin Chu

Author_Institution

Sch. of Electron. & Inf. Eng., South China Univ. of Technol., Guangzhou, China

Volume

23

Issue

10

fYear

2013

fDate

Oct. 2013

Firstpage

527

Lastpage

529

Abstract

A compact ultra-wideband (UWB) bandpass filter using dual-stub-loaded resonators (DSLR) is presented. The DSLR is analyzed by using the odd- and even- mode method. Four resonant modes can be tuned by the DSLR in 3.1 GHz - 10.6 GHz, and a pair of transmission zeros can be generated at the lower and upper stopband when the DSLR is applied to a UWB filter. Therefore a UWB bandpass filter is realized with good skirt selectivity, harmonic suppression, as well as compact size. Finally the proposed filter is simulated and fabricated. The measured results are in good agreement with the predicted one, demonstrating this structure is feasible in practical use.

Keywords

band-pass filters; dielectric resonators; ultra wideband technology; UWB bandpass filter; compact ultra-wideband bandpass filter; dual-stub-loaded resonator; even-mode method; frequency 3.1 GHz to 10.6 GHz; harmonic suppression; odd-mode method; resonant modes; transmission zeros; Band-pass filters; Filtering theory; Microwave theory and techniques; Passband; Resonant frequency; Ultra wideband technology; Wireless communication; Bandpass filter (BPF); compact; dual-stub-loaded resonator (DSLR); ultra-wideband (UWB);

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2013.2278278

Filename

6588355