Bandwidth enhanced miniaturization method of parallel coupled-line filter

Seong Sik Myoung, Yongshik Lee, Jong Gwan Yook

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)


This paper proposes a bandwidth-compensated miniaturization method of filters based on short-ended parallel coupled lines. Capacitive loading of such coupled lines is a relatively simple means of reducing the line lengths. In this work, a method is developed that predicts exactly the degree of reduction in the fractional bandwidth due to miniaturization. Using this method, the fractional bandwidth of the prototype coupled line filter can be adjusted, enabling miniaturized filters to maintain the targeted fractional bandwidth. The proposed bandwidth-compensation method applies for any type of filters with coupled lines realized with various transmission lines. Experimental results are also presented that verify the validity of the method.

Original languageEnglish
Title of host publication2007 Asia-Pacific Microwave Conference, APMC
Publication statusPublished - 2007
EventAsia-Pacific Microwave Conference, APMC 2007 - Bangkok, Thailand
Duration: 2007 Dec 112007 Dec 14

Publication series

NameAsia-Pacific Microwave Conference Proceedings, APMC


OtherAsia-Pacific Microwave Conference, APMC 2007

All Science Journal Classification (ASJC) codes

  • Engineering(all)


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