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The role of GaN front-end components in radar system

Nov. 13, 2020

Gallium nitride (GaN) is considered to be the most influential semiconductor innovation since silicon, which can operate at much higher voltages thantraditional semiconductor materials. Higher voltages mean higher efficiency, 50 GaN-based RF power amplifiers and attenuators have lower powerconsumption and generate less heat. GaN-based RF amplifiers are becoming increasingly popular as more and more RF component suppliers using GaNprovide reliable products for the market.

This technology is very important for the development of active electronically scanned array (AESA) radar systems. AESA is a fully active array thatcontains hundreds or even thousands of antennas, each with phase and gains control. These radar systems use phased array transmitters and receiversto electronically manipulate the beam without physically moving the antenna. These types of radar systems are gaining popularity due to their highertarget power, spatial resolution and robustness compared to other conventional radars. For example, if a component in the array fails, the radar cancontinue to work. The use of GaN RF amplifier in AESA radars is increasing, providing better performance and achieving the same output power in a smallerform factor and lower cooling requirements.

The role of GaN front-end components in radar system


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