Patent ID: 7187909
Filing Date: 2007-03-06
Classification: H03F,H04B

Abstract:
1. A current-domain transmitter configured to receive an input signal and provide a transmitted signal, the transmitter comprising: a plurality of elements, operatively arranged between the input signal and the transmitted signal and configured to represent the input signal with respective electric currents whose respective current magnitudes are each substantially proportional to the input signal, said plurality of elements comprising: a current mode mixer, operating completely in the current domain, configured to receive a current-domain signal representing the input signal as an electric current, and to provide an up-converted current-domain signal from which the transmitted signal is derived; and a current mode amplifier, operating completely in the current domain, configured to receive the up-converted current-domain signal and to output an amplified current-domain signal to a load element from which the transmitted signal is derived.