Patent ID: 6124742
Filing Date: 2000-09-26
Classification: H03B

Abstract:
A wide bandwidth frequency multiplier for processing an input signal having a first frequency to generate an output signal having a second frequency, said wide bandwidth frequency multiplier comprising:a lumped element power splitter having an input terminal configured to receive said input signal and having first and second output terminals, said lumped element power splitter being configured to split said input signal into first and second signals that are substantially one hundred and eighty degrees out of phase;a first transmission path coupled to said first output terminal, said first transmission path imposing a first phase lag on said first signal;a second transmission path coupled to said second output terminal, said second transmission path imposing a second phase lag on said second signal, wherein said first and second transmission paths have substantially equal lengths such that said first and second phase lags are approximately equal;a push-push amplifier having first and second amplifier inputs, said first amplifier input being coupled to said first transmission path for receiving said first signal, said second amplifier input coupled to said second transmission path for receiving said second signal, and said push-push amplifier having first and second outputs configured to produce first and second amplified signals, said first and second amplified signals being substantially in-phase; anda combining junction coupled to said first and second push-push amplifier outputs and configured to in-phase combine said first and second amplified signals to generate said output signal having said second frequency.