Chinese AESA development

I

i.e.

Senior Member
flateric said:
can you spread the light on following? I'm little bit confused:

from pakistan defense com, October 2010
"as for AESA, 14 Institute (National Research Institute of Electronic Technology (NRIET)) and 607 institute (Leihua Electronic Technology Research Institute (LETRI)) have developed two type products,they are now holding a contest at 630"

630 what? another institute? contest of three?

from SDF, December 2009 by 70092
"Another good news, the AESA radar has been finished
This news have been reported in an news paper run by Chinese military industy:
This news says the AESA for Chinese J-XX has finished, its a X-band AESA radar, developed in 607th research insistitue (LETRI) in Sichuan.
The Vice-commander of China Airforce has been there to accept the radar and praise the team, he said he is very pleased by this news and he think now one of the two challenges (engine and radar) for J-XX have been overcome.

from SDF, week ago by 70092
"Both 14th insistute (NRIET) and the National Radar/Electrionics Insititue (NREI) have produced prototype AESA radars for J-20, both prototype radars are X-band AESA radar and contain 2000+ T/R modules, there is a open competition there and 14th insitute won the competition easily (14th insistute is considerably larger and finanically stronger than NREI), thus their AESA has been selected as the radar for this fighter roughly 2 years ago."

A questions are:
1) What is 630th institute? Third contender for AESA?
2). What the number of NREI institute?
3). AESA radar that LETRI finished in 2009 - now if they are not winner, was it just one of prototype radars intended for contest?

In short, who participated in contest and who finally did win?

Thanks in advance!
Click to expand...

630th institute is that place in Hefei. the perenial contestor with 14th Institute on all the AWACSs.
 
Blitzo

Blitzo

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Wait so by the sounds of it ZDK-03's radar is a mechannically scanne AESA? Is that right?
 
I

i.e.

Senior Member
Bltizo said:
Wait so by the sounds of it ZDK-03's radar is a mechannically scanne AESA? Is that right?
Click to expand...

yes,
the trade off is a bigger array vs fixed array.
like the E-2D.

bigger array = better angular resolution at longer ranges.
 
I

i.e.

Senior Member
Sorry misspoke above 630 is the airforce flight test center.

The one in hefei is East China Research Institute of Electronic Engineering, 38th Institute CETC.
 
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Blitzo

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i.e. said:
yes,
the trade off is a bigger array vs fixed array.
like the E-2D.

bigger array = better angular resolution at longer ranges.
Click to expand...

Thanks -- ever since that flight global article that ZDK-03 had AESA there was that controversy over what its radar actually was. People thought it couldn't be AESA as it was a "cheaper alternative" to the erieye... nice to finally settle this in favour of active phased array.

fyeah.jpg
 
I

i.e.

Senior Member
Bltizo said:
Thanks -- ever since that flight global article that ZDK-03 had AESA there was that controversy over what its radar actually was. People thought it couldn't be AESA as it was a "cheaper alternative" to the erieye... nice to finally settle this in favour of active phased array.

fyeah.jpg
Click to expand...

why people assume stuff coming from china is cheaper and low grade?
it could be cheaper and better.
 
Blitzo

Blitzo

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Ali Qizilbash said:
@Bltizo Can you please provide a brief summary of the Chinese AESA development to date. Would be greatfull. I searched your blog regarding AESA developments but couldnot find much.
Click to expand...

I can't really provide any sort of comprehensive summary at all, because there are too many gaps in knowledge to make it worthwhile.
 
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