Patent ID: 6836180
Filing Date: 2004-12-28
Classification: H03B,H03H

Abstract:
A polyphase device comprising:a first transistor having a first collector, a first base and a first emitter, the first base adapted to receive a positive portion of an input signal; a second transistor having a second collector, a second base and a second emitter, the second base adapted to receive a negative portion of the input signal, the first transistor and the second transistor adapted to drive the R-C polyphase network; an R-C polyphase network having a first input coupled to the first collector and a second input coupled to the second collector; the R-C polyphase network including an inductor; the R-C polyphase network having first output and a second output, the first output and the second output offset in phase; and the R-C polyphase network including the inductor adapted to provide bandpass filtering of the first output and the second output; wherein the first output and the second output are offset in phase by approximately 90 degrees.