abhijitrc
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HOW LOCAL OSCILLATOR PHASE NOISE EFFECT THE RECEIVER PERFORMANCE?, WE ARE PLANNING TO GENERATE A CARRIER FREQUENCY AT KU BAND( 13.9 GHz), OUR APPROACH WILL BE EITHER:
1.A SYNTHESIZER(PLL BASED) WHICH GENERATES 6.95GHz, AND LATER THE OUTPUT OF THE PLL IS MULTIPLIED(X2) BY AN ACTIVE DOUBLER CIRCUIT TO GENERATE ~13.9GHz .OR
2. DIRECT SYNTHESIS OF 13.9GHz USING PLL .?
WHICH METHOD WILL BE BETTER IN TERMS OF LOW PHASE NOISE?? AND HOW IT EFFECTS THE RECEIVER PERFORMANCE!! KINDLY GUIDE ME.
1.A SYNTHESIZER(PLL BASED) WHICH GENERATES 6.95GHz, AND LATER THE OUTPUT OF THE PLL IS MULTIPLIED(X2) BY AN ACTIVE DOUBLER CIRCUIT TO GENERATE ~13.9GHz .OR
2. DIRECT SYNTHESIS OF 13.9GHz USING PLL .?
WHICH METHOD WILL BE BETTER IN TERMS OF LOW PHASE NOISE?? AND HOW IT EFFECTS THE RECEIVER PERFORMANCE!! KINDLY GUIDE ME.