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Design of Amplitude Equalizers with Improved Characteristics and Their Applications  

Lee Song-Yi (Department of Electronic Engineering, Sogang University)
Yun Sang-Won (Department of Electronic Engineering, Sogang University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.17, no.2, 2006 , pp. 95-100 More about this Journal
Abstract
In this paper, we designed amplitude equalizer which is composed of amplifier, complementary shaping filter and attenuator in order to improve flatness of high order bandpass filter. We modified Chebyshev polynomial and calculated the prototype elements for complementary shaping filters by network synthesis. The amplitude equalizer is realized that it connects the 4th order complementary shaping filter designed by using calculated the prototype elements to the amplifier compensating for insertion loss and improving return loss, and with the attenuator for gain control. Using proposed amplitude equalizer, We certificated improvement in flatness of 13th order bandpass filter at WiBro band.
Keywords
Amplitude Equalizer; Complementary Shaping Filter; Bandpass Filter; Flatness; WiBro;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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