A 37 to 40 GHz Transceiver for Fifth Generation Communication Systems

A high-integrated fifth generation (5G) transceiver that covers over the band 37 to 40 GHz has been manufactured by standard 65-nm CMOS technology. The single CMOS chip that includes double-balanced up-conversion mixer, double-balanced down-conversion mixer, low noise amplifier, buffer amplifier, power amplifier, and switch is mounted on the Rogers board by the flip-chip assembly technology. The measurement results show that the transceiver can achieve an OP1dB of 12.23 dBm and a power-added efficiency at OP
₁
dB of 12.4%. Under the OFDM 64-QAM 500MHz modulation signal at 38 GHz, the -30 dB error vector magnitude (EVM) compliant output power of the proposed power amplifier is -1 dBm.