Quadrature circuit for a radio frequency transceiver

A quadrature circuit for a radio frequency receiver, wherein the quadrature circuit comprises,

• a first sub-circuit configured to generate a first baseband, BB, signal at an intermediate frequency, IF frequency, from a radio frequency, RF, signal using a local oscillator, LO, signal at a first phase;
• and
• a second sub-circuit configured to generate a second BB signal at the IF frequency from the RF signal using the LO signal at a second phase;
• wherein the first and second sub-circuit each comprise an oscillator which is locked to the IF frequency;
• wherein
• the first and/or the second sub-circuit of the quadrature circuit each comprise a first transistor arranged between a supply voltage and a reference voltage and a second transistor arranged between the supply voltage and the reference voltage;
• a drain of the first transistor is coupled with the supply voltage and a source of the first transistor is coupled with the reference voltage;
• a drain of the second transistor is coupled with the supply voltage and a source of the second transistor is coupled with the reference voltage;
• a gate of the first transistor is coupled with the drain of the second transistor;
• and
• a gate of the second transistor is coupled with the drain of the first transistor.