Patent ID: 6865345

Claim:
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: means for controlling variations in capacitance of said FTD to produce a reciprocal conversion response between said down-conversion and said up-conversion, said means for controlling variations in capacitance of said FTD including: at least one light-activated resistor (LAR) connected to down-convert an RF to an IF and to up-convert an IF to an RF; and a source of modulated light that is optically connected to said at least one LAR, said source of modulated light generating modulated light that is related to said LO, said at least one LAR being activated in response to said modulated light from said modulated light source.