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http://dx.doi.org/10.13067/JKIECS.2012.7.2.221

Design and Fabrication of wideband low-noise amplification stage for COMINT  

Go, Min-Ho (삼성탈레스 전자전센터)
Publication Information
The Journal of the Korea institute of electronic communication sciences / v.7, no.2, 2012 , pp. 221-226 More about this Journal
Abstract
In this paper, wideband two-stage amplification stage was designed, fabricated and evaluated. The proposed amplification stage with a novel gain control method have a high gain, low noise and high linearity performance. It is consisted of common emitter amplifier as the first stage, cascode gain control amplifier as second stage and power detector which sense the received signal strength. The proposed amplification stage shows a total gain of 29 dB~37 dB, noise fiugre of 1.5 dB at operating band and high linearity performance as the IMD (third intermodulation distortion) level is below the noise level of the measurement equipment at the control voltage 2.0 V generated from power detector under the strong electric field condition.
Keywords
EW; COMINT; wideband; amplification stage; gain control;
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