A RECEIVER CIRCUIT

摘要

A receiver circuit comprising first and second antennas; an input amplification stage comprising first and second input amplifier circuits for amplifying first and second signals received at the first and second antennas respectively; a switching stage comprising first and second transconductance components connected respectively to the first and second input amplifier circuits and to a common output, and a switching mechanism arranged to selectively turn on and off the first and second transconductance components so that only one of the first and second transconductance components is in an on state at any time, the first and second transconductance components further amplifying the first and second signals respectively when in an on state; and an output amplification stage connected to the common output of the switching stage and comprising an output amplifier circuit for further amplifying the first and second signals when they are outputted via the common output.

主权项

1. A receiver circuit comprising:
a first antenna; a second antenna; an input amplification circuit comprising a first input amplifier circuit for amplifying a first signal received at the first antenna, and second input amplifier circuit for amplifying a second signal received at the second antenna; a switching circuit comprising first and second transconductance components connected respectively to the first and second input amplifier circuits and to a common output, and a switching mechanism arranged to selectively turn on and off the first and second transconductance components so that only one of the first and second transconductance components is in an on state at any time, the first and second transconductance components further amplifying the first and second signals respectively when in an on state; and an output amplification circuit connected to the common output of the switching circuit and comprising an output amplifier circuit for further amplifying the first and second signals when the first and second signals are outputted via the common output.