Patent ID: 6192229
Filing Date: 2001-02-20
Classification: H03D

Abstract:
A diode mixer circuit for mixing a first and a second input signal (LO, RF), characterized in that a diode mixer circuit comprisesa driving circuit (DRIV) for producing a first, second, third and fourth drive signal (DS1, DS2, DS3, DS4), each drive signal being a combination of the first and the second input signal (LO, RF), the first and the second input signal (LO, RF) having the following signs in the first, second, third and fourth drive signal: +/+(DS1: +LO+RF), +/-(DS2: +LO-RF), -/+(DS3: -LO+RF) AND -/-(DS4:-LO-RF) respectively; anda group of diodes (D1-D4) comprising a first, second, third and fourth diode (D1, D2, D3, D4) which are coupled for transferring the first, second, third and fourth drive signal (DS1, DS2, DS3, DS4) respectively, to an output, the first and fourth diodes (D1, D4) having the same polarity relative to the output (01), and the second and third diodes (D2, D3) having the same polarity relative to the output (01), but opposite to that of the first and fourth diodes (D1, D4).