TITLE:
Compact Low Pass Filter Design for L-Band Application
AUTHORS:
Dhirendra Kumar, Asok De
KEYWORDS:
Low Pass Filter, Chebyshev Prototype, Stepped Impedance Etc
JOURNAL NAME:
Journal of Electromagnetic Analysis and Applications,
Vol.3 No.4,
April
8,
2011
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