Methods and systems for calibrating a frequency division duplexing transceiver

摘要

A frequency division duplexing (FDD) transceiver includes a first mixer to up convert a transmit signal and a first switch coupled to the first mixer to selectively provide a transmit local oscillator signal or a receive local oscillator signal to the first mixer. The transmit local oscillator signal has a first frequency and the receive local oscillator signal has a second frequency distinct from the first frequency. The FDD transceiver also includes a second mixer to down convert a receive signal and a second switch coupled to the second mixer to selectively provide the transmit local oscillator signal or the receive local oscillator signal to the second mixer.