Design of compact tri-band bandpass filter using multilayer substrate technique

Author

Yu-Fu Chen ; Shih-Hua Huang ; Hung-Wei Wu ; Hsin-Ying Lee

Author_Institution

Dept. of Photonics, Nat. Cheng Kung Univ., Tainan, Taiwan

fYear

2013

fDate

5-8 Nov. 2013

Firstpage

527

Lastpage

529

Abstract

In this paper, the compact tri-band bandpass filter (BPF) using multilayer substrate technique is presented. The filter is designed at 2.4 GHz, 3.5 GHz and 5.2 GHz. The multilayered filter consists of the cross-shaped stepped-impedance resonator (CS-SIR) on the top layer for generating the 1st passband and two T-shaped stepped-impedance resonators (TS-SIR) on the bottom layer for generating the 2nd and 3rd passband, respectively. The transmission zeros at each passband skirts can be controlled by tuning the proposed resonators. The measured results are in good agreement with the full-wave electromagnetic (EM) simulation results.

Keywords

UHF filters; band-pass filters; microwave filters; poles and zeros; resonator filters; BPF; CS-SIR; T-shaped stepped-impedance resonators; TS-SIR; compact tri-band bandpass filter; cross-shaped stepped-impedance resonator; frequency 2.4 GHz; frequency 3.5 GHz; frequency 5.2 GHz; full-wave electromagnetic simulation; multilayer substrate; multilayered filter; transmission zeros; Band-pass filters; Couplings; Filtering theory; Microwave filters; Passband; Resonant frequency; Resonator filters; bandpass filter; stepped-impedance resonator; transmission zeros; tri-band;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference Proceedings (APMC), 2013 Asia-Pacific

Conference_Location

Seoul

Type

conf

DOI

10.1109/APMC.2013.6694853

Filename

6694853