A design of the novel coupled line low-pass filter with attenuation poles

Author

Dong Hwan Lee ; Yong Woo Lee ; Jun Seok Park ; Dal Ahn ; Hyung Seok Kim ; Kwang Yong Kang

Author_Institution

YUYU Co. Ltd., South Korea

Volume

3

fYear

1999

fDate

13-19 June 1999

Firstpage

1127

Abstract

In this paper, a novel low-pass filter structure using coupled lines is proposed. The design formula is derived using the equivalent circuit of coupled transmission line. The proposed low-pass filter structure provides compact size, low insertion loss and two attenuation poles in the stop band. The higher order low-pass filters can be realized by using the proposed structure as a unit element. Experimental results show the validity of the proposed low-pass filter structure and the design method.

Keywords

UHF filters; coupled transmission lines; distributed parameter filters; equivalent circuits; linear network synthesis; low-pass filters; microwave filters; passive filters; 2.5 GHz; 3.5 GHz; attenuation poles; compact size; coupled line low-pass filter; coupled transmission line; design formula; equivalent circuit; higher order filters; low insertion loss; Attenuation; Coupling circuits; Design methodology; Distributed parameter circuits; Electronic mail; Equivalent circuits; Insertion loss; Low pass filters; Prototypes;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1999 IEEE MTT-S International

Conference_Location

Anaheim, CA, USA

Print_ISBN

0-7803-5135-5

Type

conf

DOI

10.1109/MWSYM.1999.779585

Filename

779585