@Michael @RajaBaja
Gentlemen, your discussion on fighter aircraft radar technology raises interesting points, but there are several inaccuracies that need clarification for a more accurate understanding of the topic. First of all, Michael, you're correct that T/R (transmit/receive) modules are only part of radar performance, and algorithms, data processing, and threat databases are critical. Also, Gallium Oxide (GaO) is an emerging ultra-wide bandgap material, but it’s not yet widely adopted for AESA radars due to its early-stage development and challenges in high-power applications. RajaBaja, your assertion that SiC (Silicon Carbide) chips can process "3 times the information" and provide "3 times the range" compared to GaN is incorrect. SiC is primarily used as a substrate for GaN in RF applications, not as a standalone chip material for T/R modules in fighter radars. SiC enhances GaN’s thermal management but doesn’t directly replace GaN in AESA systems. The claim that SiC inherently triples radar range lacks evidence, as radar range depends on multiple factors like power output, antenna design, number of T/R modules and signal processing, not just the material.
Furthermore, GaAs (Gallium Arsenide) AESA radars are inherently backward compared to GaN as GaN offers significant advantages, including higher power output, efficiency, and thermal resilience, enabling longer detection ranges and better performance in contested environments.
In summary, GaN is the dominant material for modern AESA radars, including those in the J-20 and J-35, not SiC. GaN offers superior performance over GaAs, but radar effectiveness also depends on algorithms and databases, where the West retains an edge.