[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5207/JIEIE.2006.20.9.040

Implementation of Tuneable Filter Using CPW Coupled Line and Varactor Diode

Park, Jeong-Heum (IT department of Kimpo college)

Publication Information

Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.20, no.9, 2006 , pp. 40-44 More about this Journal

Abstract

This study investigated a new tuneable bandpass filter based on coplanar waveguide coupled line structure, and using the varactor diode for tuning the center frequency of the filter. The filter was designed by a commercial simulator and had a tuning range of 180[MHz] from 0.95[GHz] to 1.13[GHz]. The filter acceptable values regarding the insertion loss was less than 3[dB] and its return loss greater than 12[dB]. The figure of merit of the implemented tuneable filter increased with the reverse bias voltage up to 14[V] on the varactor diode. The proposed filter has a promising future as it can be used in integration processes and in various materials as substrate.

Keywords

CPW(Coplanar Waveguide); Coupled Line; Varactor Diode; Tuneable Filter; Figure of Merit;

Citations & Related Records

Reference

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