Patent ID: 8520564

Claim:
An integrated full-duplex transceiver comprising: a single substrate comprising: an input/output (“I/O”) port; a first mixer, electrically connected to the I/O port, for up-converting a transmit signal; a second mixer, electrically connected to the I/O port, for down-converting a receive signal, wherein the first mixer and the second mixer are configured to communicate the transmit and receive signals simultaneously over the I/O port in full-duplex communication; a first independently tunable local oscillator that drives the first mixer; a second independently tunable local oscillator that drives the second mixer; a multiplexer, electrically connected between the I/O port and the first and second mixers, wherein the multiplexer is configured to receive a plurality of signals; a variable gain amplifier (“VGA”), electrically connected to the first mixer, wherein a gain of the VGA depends upon a signal generated by at least one of a temperature controlled resistor and a thermistor; a gain adjust circuit on the substrate that adjusts a gain of at least one of: a digital attenuator on the transceiver and an off-chip amplifier in response to a reading provided by a temperature sensor; an injection switchable image-reject mixer (“IRM”), electrically connected to the second mixer, that filters a desired image of a received intermediate frequency (“IF”) signal; and an internal low-dropout regulator electrically connected to the first and second independently tunable local oscillators.