Compact quint-band microstrip bandpass filter using double-layered substrate

Author

Ko-Wen Hsu ; Wei-Chung Hung ; Wen-Hua Tu

Author_Institution

Dept. of Electr. Eng., Nat. Central Univ., Jhongli, Taiwan

fYear

2013

fDate

2-7 June 2013

Firstpage

1

Lastpage

4

Abstract

A quint-band bandpass filter using double-layered substrate is proposed. The basic components used to build the proposed filter are three pairs of microstrip stepped-impedance resonators on the top and middle metal layer, and two pairs of slot uniform-impedance resonators on the bottom metal layer. Since each pairs of resonators control a respective passband, the proposed design is flexible and features a high design freedom. The proposed filter has the advantages of compact size and sharp passband selectivity. Due to crossed coupling, the transmission zeros at the both sides of the passbands enhance passband selectivity.

Keywords

band-pass filters; microstrip filters; resonator filters; bottom metal layer; double-layered substrate; microstrip bandpass filter; microstrip stepped-impedance resonator; middle metal layer; quint band bandpass filter; slot uniform impedance resonator; top metal layer; transmission zero; Band-pass filters; Couplings; Filtering theory; Microstrip filters; Microwave filters; Passband; Resonator filters; Microstrip bandpass filter; quint-band bandpass filter; stepped-impedance resonator;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest (IMS), 2013 IEEE MTT-S International

Conference_Location

Seattle, WA

ISSN

0149-645X

Print_ISBN

978-1-4673-6177-4

Type

conf

DOI

10.1109/MWSYM.2013.6697353

Filename

6697353