Study of Performance Impact from Powering RF Receiver Front-End Circuits with a DC-DC Converter

Abstract

This paper studies the effects of DC-DC switching converters on RF and analog baseband circuits. Simulations of a low-noise amplifier, mixer, and lowpass filter have shown that the impact of switching supply noise can be kept to small levels by design. For the case of loads with frequency conversion, a boost converter design technique to shift the switching frequency of the converter out of the band of interest is proposed.