Chinese Radar Developments - KLJ series and others

tphuang

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CETC says it has made breakthrough in MMW band GaN 1 piece T/R chip on silicon substrate. Allows for next-generation high power T/R chip.

Can be used in commercial aerospace, satellite signal transmission and such. Also, I would imagine just MMW AESA radar for helicopters and other assets that use MMW band radar.
 

by78

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CETC's Spider Web low-altitude surveillance radar against small objects and drones.

– Detection range: ≥10km (RCS=0.01m2)
– Unmanned AI operated mode, with false alarm rate reduced to 1%
– Target identification rate (against UAVs): ≥95%

P.S. Incidentally, there was an earlier but unrelated CETC radar also named Spider Web.

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phrozenflame

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CETC says it has made breakthrough in MMW band GaN 1 piece T/R chip on silicon substrate. Allows for next-generation high power T/R chip.

Can be used in commercial aerospace, satellite signal transmission and such. Also, I would imagine just MMW AESA radar for helicopters and other assets that use MMW band radar.
What's usually the timelines from tech breakthroughs to real life implementations in this sector?
 

doggydogdo

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Myself and others have explained why the use of materials in the civilian sector at a given time period does not automatically equate to production ready capability on a military aircraft in the same time period.
You also have not demonstrated any credible rumours (such as from PRC side credible individuals) or evidence to support your confident statement.

at 13:50 汪涛(who was a former executive at ZTE) said:
我们现在主要的舰载和机载的雷达的功率放大器件,早就已经采用氮化镓收发的器件,早在2008年我国开发的这种氮化镓的收发单元的单位功率已经是119瓦,而美国直到现在主力的雷达器件大部分采用的还是砷化镓器件。

当然,客观地说,美国并不是没有氮化镓器件上的技术能力,美国是因为其战略上的重大失误延缓了技术的提升。现在美军最新的APG85采用的也是氮化镓器件,但是它的进展很慢。而中国更下一代的氧化镓器件也已经取得了重要的突破。
Translation:
The power amplifiers of our main shipborne and airborne radars have long been using gallium nitride transceivers. As early as 2008, the unit power of the gallium nitride transceiver unit developed by my country was 119 watts, while the main radar devices in the United States still mostly use gallium arsenide devices.

Of course, objectively speaking, the United States is not without the technical capabilities of gallium nitride devices. The United States has delayed the improvement of technology because of its major strategic mistakes. The latest APG85 of the US military also uses gallium nitride devices, but its progress is very slow. China's next-generation gallium oxide devices have also made important breakthroughs.

This guy seems to know what he's talking about since he was part of the industry before.
 

Blitzo

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at 13:50 汪涛(who was a former executive at ZTE) said:

Translation:


This guy seems to know what he's talking about since he was part of the industry before.

Nowhere did I suggest that the PRC didn't have GaN radar technology by the mid 2010s (or even the early 2010s) -- the specific question is whether we can or should confidently say that J-20 entered initial production with GaN radars.

So I'm not sure what that's supposed to prove -- the PRC has offered radars with GaN for export since like the mid 2010s, meaning we know that they would've been utilized on other domestic products as well prior to offering it for export (see pics below).

That doesn't address or prove the idea that J-20 has only ever utilized GaN for its radars -- considering that J-20 first entered production in 2015-2016, and the J-20 201X series EMD prototypes emerged starting late 2013 (meaning subsystems for it would be reflective of early 2010s technology that they would consider sufficiently mature for their first 5th gen fighter batch), it is entirely logical that GaA would fit the bill for the first batches, before moving onto an improved GaN type later on.


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tphuang

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CETC with more promotion of its own radar efforts.

Including the world's largest caliber and highest power phased array incoherent scattering radar that can analyze and amplify weak scattered signals, and capture and monitor the "every move" of tiny electrons in space hundreds to thousands of kilometers away.

S and C band weather AESA radar.

ground search radar for tunnel detection, geological survey, building structure detection, road collapse detection, water conservancy project detection and other fields.

Life search and rescue radar can emit UWB EM pulses to find and rescue people after earthquake.

And also they have the latest C band all digital AESA radar for ATC that is now under usage at new Daxing airport
 
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