FULLY I/Q BALANCED QUADRATURE RADIO FREQUENCY MIXER WITH LOW NOISE AND LOW CONVERSION LOSS

摘要

A method, an apparatus, and a system product for mixing radio frequency signals are provided. In one aspect, the apparatus is configured to perform switching of switches based on first, second, third, and fourth phased half duty clock signals. The apparatus convolves a differential input signal on a differential input port with the first, second, third, and fourth phased half duty cycle clock signals to concurrently generate a differential in-phase output signal and a differential quadrature-phase output signal on a dual differential output port. The first, second, third, and fourth phased half duty cycle clock signals are of the same frequency and out of phase by a multiple of ninety degrees with respect to each other.

主权项

1. A radio frequency mixer, comprising:
a first switching module configured to:
switch a differential input signal based on a first phased half duty cycle clock signal and a second phased half duty cycle clock signal to generate first switching outputs, andswitch the differential input signal based on a third phased half duty cycle clock signal and a fourth phased half duty cycle clock signal to generate second switching outputs; and a second switching module configured to generate a differential in-phase output signal and a differential quadrature-phase output signal on a dual differential output port by being configured to:
switch the first switching outputs based on the third phased half duty cycle clock signal and the fourth phased half duty cycle clock signal, andswitch the second switching outputs based on the first phased half duty cycle clock signal and the second phased half duty cycle clock signal.