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http://dx.doi.org/10.5762/KAIS.2014.15.3.1734

Design and Fabrication of Deep Attenuation LPF using Meander Microstrip Transmission Line  

Seo, Soo-Duk (Innertron Inc.)
Cho, Hak-Rae (Innertron Inc.)
Yang, Doo-Yeong (Dept. of Telecommunication Eng., Jeju National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.15, no.3, 2014 , pp. 1734-1739 More about this Journal
Abstract
In this paper, microstrip low pass filter using transmission line with the modified DCRLH structure is designed and fabricated to be removed a spurious resonant mode, and a deep attenuation in stop band. The low pass filter is composed of shunt open-stub to get a deep attenuation and series short-stub to eliminate the spurious harmonics in stop band. In this way, the spurious harmonics occurring on the higher order frequency are suppressed and the filter performance is improved. Insertion loss and VSWR of the fabricated microstrip low pass filter in the passband from DC to 1.5 GHz is 1.26 dB and 1.65, and attenuation on the stopband from 1.84 GHz to 2.18 GHz is less than -100 dB. And also this filter has a good performance for 20 watt power test.
Keywords
Deep attenuation; Modified DCRLH; Shunt open-stub; Series short-stub; Spurious harmonics;
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Times Cited By KSCI : 1  (Citation Analysis)
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