Vol. 5

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2009-01-16

Bandwidth Enhancement and Further Size Reduction of a Class of Elliptic-Function Low-Pass Filter Using Modified Hairpin Resonators

By Mehdi Nosrati and Ayat Najafi
Progress In Electromagnetics Research C, Vol. 5, 187-194, 2008

Abstract

A compact elliptic-function low pass filter using microstrip stepped-impedance modified-hairpin resonators is developed and a multiple cascaded filter using semi-hairpin resonators is designed, analyzed and tested. Sharpness of cut off frequency, low insertion-loss, enhancement of bandwidth and very compact size are features of the proposed low-pass filter. Size reduction of this filter is reported about 62% with 13% enhancement of bandwidth respects to the conventional filter with comparable performance. The measurement results are in good agreement with the theoretical ones.

Citation


Mehdi Nosrati and Ayat Najafi, "Bandwidth Enhancement and Further Size Reduction of a Class of Elliptic-Function Low-Pass Filter Using Modified Hairpin Resonators," Progress In Electromagnetics Research C, Vol. 5, 187-194, 2008.
http://jpier.org/PIERC/pier.php?paper=08121607

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