| 摘要 |
A compensated mixer including a radio frequency (RF) balun (18) through which RF signals are transferred, and a local oscillator (LO) balun (14) for receiving an LO signal. In an exemplary implementation the mixer further includes a diode ring quad circuit (12) for mixing RF signals received by the RF balun (18) with the LO signal received by the LO balun (14). During operation the diode ring quad circuit develops, between the first and second nodes therein (50, 52), a capacitive reactance arising from switching at the LO frequency. The mixer further includes a compensation inductor (56), connected between the first and second nodes (50, 52), for cancelling the effect of the capacitive reactance at the LO signal frequency.
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