Patent ID: 7095989
Filing Date: 2006-08-22
Classification: H03D

Abstract:
1. A frequency translating device (FTD) that utilizes a local oscillator (LO) to convert a radio frequency (RF) to an intermediate frequency (IF) and to convert an IF to a RF, said FTD comprising: at least one mixer diode connected to down-convert an RF to an IF and to up-convert an IF to an RF, said mixer diode having a threshold voltage; and means for controlling the excitation of the parasitic voltage-dependent capacitance of said at least one mixer diode to produce a reciprocal conversion response between said down-conversion and said up-conversion, said means for controlling the excitation of the parasitic voltage-dependent capacitance of said at least one mixer diode including at least one source of direct current (DC) bias that is electrically connected to said at least one mixer diode, each of said at least one source of DC bias corresponding to one of each of said at least one mixer diode, said at least one source of DC bias providing a DC bias to said at least one mixer diode that moves the voltage that is applied to said at least one mixer diode closer to said threshold voltage of said at least one mixer diode; said at least one mixer diode being turned on in response to said DC bias and in response to an LO drive.