The miniature 2.4/5.2 GHz dual-band bandpass filter with modified hairpin structure

Cheng Yuan Kung, Ying Chung Chen, Cheng Fu Yang, Mau-phon Houng

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

3 Citations (Scopus)


A compact dual-band bandpass fitter is designed to operate at 2.4/5.2 GHz without any input/output impedance matching. This fitter is constructed of three resonators which are based on the stepped impedance resonators and hairpin resonators. The Al2O3 ceramic with a thickness of 0.6 mm and a relative dielectric constant of 9.4 was adopted as substrate. It is easy to be integrated with other RF circuits by SOP (System on Package) process. The three-order dual-band bandpass filter is optimally designed and its properties are confirmed by experiment. By the high dielectric constant substrate and modified structure, the optimized device exhibits excellent dualband filtering performances and small size. The size of the proposed filter can be reduced about 32.5% in comparing to the typical hairpin filters.

Original languageEnglish
Title of host publication2007 Asia-Pacific Microwave Conference, APMC
Publication statusPublished - 2007 Dec 1
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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