A radio frequency circuit includes a transformer, a local oscillator, a first mixer, a second mixer, a first variable gain amplifier, and a second variable gain amplifier. The first mixer includes a first inductor that is coupled between a positive in-phase input and a negative in-phase input. The second mixer includes a second inductor that is coupled between a positive quadrature input and a negative quadrature input. The first and second inductors provide inductive loads and improve conversion gains of the first and second mixers respectively.