Millimeter-wave ultra-broadband IQ transceiver design - current status and future outlook

Millimeter-wave bands have become next-generation spectrum candidates for future 5G cellular applications. The ultra-broad bandwidth in millimeter-wave carrier provides fiber-optic grade wireless links. The required bandwidth in 5G will significantly increased from traditional 100MHz in 4G-LTE to 1GHz or 10GHz in 5G communications. This paper will review the current status of ultra-broadband TRx development and the future research directions of High-QAM millimeter-wave transceivers.