Chinese Radar Developments - KLJ series and others
- Thread starter indochina
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Consider that the slc-7 radar was marketed in 2015. The 055 class has been built since 2014, and the 346b and slc-7 are both products of the 14th Research Institute. It is reasonable to believe that the 346b and X-band radars on the 055 also use GAN material TRM.
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You can buy modules at Alibaba too. It's also reasonable to assume AESA modules used on the J-10C, J-16, J-15D, J-11D and J-20, as well as other recent aircraft, to use GaN too. You can also reasonably assume it is used on satellites and satcoms. Another usage, which also includes civilian use, is for solid state navigation radars used for ships and boats. I also assume that dual sided radar that appeared on the Type 075 LHD to be GaN too, as well as the new missile target emitters on the 054A, and what might be a new dual sided search radar for the Type 054B.
GAN is not a new tech for CETC.
To be more accurate, we’d better to distinguish different kinds of GANs: their performances vary dramatically among different backing materials. As backing material, diamonds is the best but most expensive material; Si and sapphire is the worst; SiC is a good balance between cost and performance.
Packaging is also important. The performance gap between GANs with advanced package/diamond back and old package/sapphire back can be 1000x or even more.
That's a 4X or 4 channel module. Means one module has 4 T/R elements. Other modules can be just 1X or 1 T/R per module, so you would need 4 of these 1X modules to match a 4X. Do note that the distance between the T/R elements in a phase array is predetermined by the frequency it is using so element density on an array is fixed by its frequency band.
by78
General
Saudi Arabia has purchased CETC's S-band surveillance radar, which can simultaneously detect and track low-altitude cruise missiles, fighter aircraft, UAVs, and other aerial targets. Detection range is reportedly greater than 20km for targets with RCS of 0.01m2.
Images from an exhibit earlier this year:
It looks like Saudi Arabia has purchased quite a few units of CETC's S-band low-altitude surveillance radar. The image was taken at a Saudi airport. These radars have been used in conjunction with the Chinese Silent Hunter laser weapon system the Saudis have also imported.
