Notice of Violation of IEEE Publication Principles9.75/10.6GHz SiGe PLL for LNB Satellite Front-Ends Using Half-Rate Oscillators

Abstract

A fully-integrated frequency synthesizer for DBS satellite front-ends was realized in a low cost 50GHz fT SiGe process. Two half-rate VCOs followed by Gilbert frequency doublers generate the 9.75/10.6 GHz LO signals with lower phase noise than a full-rate oscillator. The loop filter was integrated on-chip by using a passive feed-forward architecture, which provides a noiseless resistor multiplication