Patent ID: 6892062

Claim:
A mixer, comprising: a first transistor for amplifying a radio frequency (RE) signal; a second and a third transistor, each connected to the first transistor, for receiving a balanced local oscillator (LO) signal to mix it with the RF signal; a first and a second load element connected between a supply voltage source and the second transistor and between the supply voltage source and the third transistor, respectively; and a fourth transistor, connected between the supply voltage source and the first transistor, for amplifying the RE signal and bleeding a current from the supply voltage sources, wherein drains of the second and third transistor are connected to the first and the second load element, respectively, and each source of the second and third transistor is connected in parallel to a drain of the first transistor and a gate and a drain of the fourth transistor are connected to a gate and the drain of the first transistor, respectively.