Compact Low Pass Filter Design for L-Band Application

Dhirendra Kumar, Asok De

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DOI: 10.4236/jemaa.2011.34018                

Abstract

An effective technique to design compact low pass filter has been proposed in this paper. The proposed method is highly effective for L-band applications. Low impedance microstrip lines are arranged such that they work as open stubs to increase the selectivity of the filter. Using the proposed technique about 57% size reduction has been realized with sharper roll off characteristics. An empirical expression is derived to determine the dimension of resonators. For cut-off frequency of 1.7 GHz the investigated method has been fabricated and tested. There is a close agreement be-tween simulated and measured results

Keywords

Low Pass Filter, Chebyshev Prototype, Stepped Impedance Etc

Conflicts of Interest

The authors declare no conflicts of interest.

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