TRANSCEIVER HAVING AN ON-CHIP CO-TRANSFORMER

摘要

A transceiver formed on an integrated-circuit substrate is disclosed. The transceiver includes: a co-transformer comprising first, second and third windings which wrap each other but are separated from each other; a power amplifier coupled to the co-transformer; and a low-noise amplifier coupled to the co-transformer; wherein the co-transformer is configured for converting a first signal from the power amplifier into a second signal to be transmitted by an antenna when the transceiver is in its transmitter mode, and for converting a third signal from the antenna into a fourth signal to be outputted to the low-noise amplifier when the transceiver is in its receiver mode.