Evolutionary trends in Transmit/Receive Module for Active Phased Array Radars

Somsing Rathod, Kilari Sreenivasulu, KS Beenamole, KP Ray


Worldwide, defense technologies are rapidly evolving and are currently aiming at integrating diverse functionalities like Radar, Electronic Warfare, Communications, etc., on a singular miniaturized platform. Hence, it cannot be denied that the advancements in modern Active Phased Array Radar technologies assume a critical role towards the achievement of this goal. A typical Active Phased Array Radar comprises of an Active Antenna Array Unit (AAAU) consisting of a large number of radiating elements, Transmit/Receive (T/R) Modules with other associated RF and digital circuitry and power electronics.  This paper presents mainly the developments in Transmit/Receive (T/R) Module technology, which assimilates various stages of the technological evolution - past, current and futuristic. It discusses how these technologies contribute towards the improvement of efficiency, miniaturization and reliability without compromising its performance parameters.


Active Phased Array; LTCC; GaAs; LDMOS; GaN; 3D T/R Module

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DOI: http://dx.doi.org/10.14429/dsj.68.12628

Defence Science Journal (DSJ)