Design and Implementation of Ku-band Up-converter

2009 
A scheme of up-converter in Ku-band satellite communications is presented,with low spurious and low phase noise output particularly considered.By using multiple frequency conversions and filters with high rejection,low spurious output of the up-converter is realized.Furthermore,by using multiple phase-locked loops,low phase noise output is realized.Finally,test results are presented to illustrate the efficiency of the scheme with spurious of -70 dBc(500 MHz in-band) and phase noise of -85 dBc/Hz@1 kHz.
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