Equivalent circuit design of multilayer parallel-coupled line filter

Author

Sung, Gyu-Je ; Dong-Hun Ye ; Kim, Bruce

Author_Institution

Hankyong Nat. Univ., Kyonggi-do, South Korea

fYear

2004

fDate

19-22 Sept. 2004

Firstpage

239

Lastpage

241

Abstract

LTCC filters have been widely used for wireless LAN terminals. They generally adopt the multilayer structure. Some multilayer LTCC filters are made of symmetrical parallel-coupled lines and anti-symmetrical parallel-coupled lines to reduce the length of resonators. The equivalent circuit of parallel-coupled lines was analyzed and applied to bandpass filters using multilayer parallel-coupled line resonators. A three-pole bandpass filter with a center frequency of 2.45 GHz is designed by using the proposed equivalent circuit and the measured results have good agreement with the design results.

Keywords

band-pass filters; equivalent circuits; poles and zeros; resonator filters; strip line resonators; wireless LAN; 2.45 GHz; LTCC filters; ceramics; equivalent circuit design; multilayer parallel-coupled line filter; multilayer parallel-coupled line resonators; stripline resonators; three-pole bandpass filter; wireless LAN; wireless terminals; Admittance; Band pass filters; Capacitance; Coupling circuits; Distributed parameter circuits; Electromagnetic coupling; Equivalent circuits; Microwave filters; Nonhomogeneous media; Resonator filters;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio and Wireless Conference, 2004 IEEE

Print_ISBN

0-7803-8451-2

Type

conf

DOI

10.1109/RAWCON.2004.1389118

Filename

1389118