Analysis of modern amplifiers for high-frequency communication technology system

Nowadays, with the huge requirement and fast development of wireless communication, as well as the needs for 5G system, a faster, more efficient, more energy-saving, etc. communication system with higher frequency is pursued. Thus, it is important to optimize the design of the amplifier in communication system. The work presents a review in amplifiers used widely in high-frequency communication system. A common model for communication system is introduced, in which this work especially emphasize the amplifiers. Several important performance measurements are introduced and a unified performance measurement, figures of merits (FOM), is adopted. Basic topologies to design an integrated circuit (IC) are analyzed, especially their performances in high frequency. Some modern IC voltage amplifiers reported in original works based on communication system are selected to calculate their FOM and compare their performances in high frequency communication, such as the voltage gain, bandwidth and power dissipation.