Radio-frequency apparatus with programmable performance and associated methods

摘要

A receiver including a mixer configured to generate (i) a first output and (ii) a second output, a first capacitance coupled to the first output, and a second capacitance coupled to the second output, A controller is configured to program (i) the first capacitance and (ii) the second capacitance to a first capacitance value in response to operating the receiver in a first mode, and program (i) the first capacitance and (ii) the second capacitance to a second capacitance value in response to operating the receiver in a second mode. The first capacitance value determines one or more of (i) linearity, (ii) gain, and (iii) noise figure of the receiver in the first mode. The second capacitance value determines one or more of (i) linearity, (ii) gain, and (iii) noise figure of the receiver in the second mode.

主权项

1. A receiver comprising:
a mixer configured to generate (i) a first output and (ii) a second output, wherein the mixer includes a plurality of switches; a first capacitance directly connected to the first output; a first resistance connected in parallel to the first capacitance; a second capacitance directly connected to the second output; a second resistance connected in parallel to the second capacitance; and a controller configured to
program (i) the first capacitance and (ii) the second capacitance to a first capacitance value in response to operating the receiver in a first mode, andprogram (i) the first capacitance and (ii) the second capacitance to a second capacitance value in response to operating the receiver in a second mode,wherein the first capacitance value determines one or more of (i) linearity, (ii) gain, and (iii) noise figure of the receiver in the first mode, andwherein the second capacitance value determines one or more of (i) linearity, (ii) gain, and (iii) noise figure of the receiver in the second mode; andgenerate a signal and output the signal to (i) the first resistance and (ii) the second resistance,wherein one or more switching characteristics of the plurality of switches of the mixer are based on the signal output to (i) the first resistance and (ii) the second resistance.