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http://dx.doi.org/10.6109/jkiice.2011.15.5.1038

Design and Performance Analysis of the Multichannel I. F. Transceiver for Broadband Multimedia System  

Kim, Seong-Cheol (우송대학교 철도전기시스템학과)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.15, no.5, 2011 , pp. 1038-1044 More about this Journal
Abstract
In this paper, the multichannel intermediate frequency transceiver for broadband multimedia system is designed and the experimental results are analyzed. Basic elements of the transceiver such as frequency synthesizer, amplifier, mixer, automatic gain control amplifier are introduced. The analysis technique described here applies not only to amplifier but also to any other nonlinear components such as mixers and frequency doubler. Through the investigation of the power spectrum density of the transmitted signal, the phase noise of the local oscillator is evaluated below 70 dBc/kHz. The frequency characteristics of the modulated signal is flat within the system bandwidth. Also the effects of adjacent channel interference and supurious emission are analyzed. And the function of automatic gain control amplifier is well operated.
Keywords
Multimedia system; AGC; PLL; Phase noise; frequency synthesizer;
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