This paper provides a deep look into various solid-state devices and active elements that can be integrated with antenna to improve the efficiency of transmitting and receiving signals. After close look in to historical remarks and classification, the paper emphasis the research efforts on last two decades how the integration has impacted the performance and change in the dimensions and losses of the system. Also, this Paper focused on application of active integrated antennas especially in 5G communications and beyond. This paper also contributed towards the research gaps, which gives possible insight for the researchers for further development is various areas of active integrated antenna and its application.
Key words: Active integrated antennas, Power amplifiers, Transceivers, Beam forming Patch Antennas, MIMO, Phased Arrays, 5G Communications.
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