A novel flexible filter with enhanced coupling effect using mixed coupling

Author

Kim, Jin-Sup ; Lee, Jae-Young ; Lee, Gyu-Bok

Author_Institution

Convergence Commun. Components Res. Center, Korea Electron. Technol. Inst., Seongnam, South Korea

fYear

2010

fDate

7-10 Dec. 2010

Firstpage

1150

Lastpage

1153

Abstract

In this paper, we present a bandpass filter using FPCB (Flexible Printed Circuit Board). A novel FPCB bandpass filter is proposed and implemented using a coplanar waveguide (CPW), aiming at transmitting the signals in the passband of 2.4-2.5GHz. It is composed of two quarter-wavelength resonators and coupling patterns. The coupling patterns are composed of broadside and cross coupling configuration in bottom side. After optimization of this filter, a good bandpass behavior with two transmission poles is theoretically realized and experimentally confirmed. Within the whole BPF passband, the return loss is found better than 26dB, and the insertion loss is less than 1dB.

Keywords

band-pass filters; coplanar waveguides; flexible electronics; printed circuits; resonator filters; bandpass filter; coplanar waveguide; coupling pattern; cross coupling configuration; filter optimization; flexible filter; flexible printed circuit board; mixed coupling; quarter-wavelength resonator; transmission poles; Band pass filters; Couplings; Insertion loss; Loss measurement; Microwave filters; Resonator filters; Scattering parameters; CPW; FPCB; broadside coupling; cross coupling; resonators;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference Proceedings (APMC), 2010 Asia-Pacific

Conference_Location

Yokohama

Print_ISBN

978-1-4244-7590-2

Electronic_ISBN

978-1-902339-22-2

Type

conf

Filename

5728409