I have read that it consists of 1,088 T/R modules.
m.blog.naver.com
m.blog.naver.com
I have read that it consists of 1,088 T/R modules.
쉘든의 밀리터리 : 네이버 블로그
blog.naver.com
It's Korean, but it would be good to translate it into English.
just my 5 cents about picture
Your eagle eyes have precisely counted the no. right: 992! But the picture is from an older pre-prototype model (HW input test in 2018).I used the real picture which you provided.
and
View attachment 52279
Green 4+4, Blue 4+4 , Red 24 lines . Grey 8 section with each section have 2 segments -> 40 * (8*2) = 640
+
Blue 4+4, Red 24 lines. Orange 2 + 2 section with each have 2 segments -> 32 * ( (2+2) *2 ) = 256
+
Red 24 lines. Purple 1 section with 2 segments -> 24 * ( (1+1) * 2 ) = 96
Total 992
m.blog.naver.com
The pitot tube will not be removed before the end of the Testing of the Aerodynamic Characteristics.supersonic flight this monthS. Korea seeks to achieve supersonic speeds of homegrown KF-21 fighter this month: sources | Yonhap News Agency
By Song Sang-ho SEOUL, Jan. 5 (Yonhap) -- South Korea plans to conduct a test of its hom...m-en.yna.co.kr
Does it still gonna has that pitot-like-thingy in its radome in supersonic flight test?
View attachment 52425
He's probably talking about Korean MMIC and T/R module development and miniaturisation from 2006 till now. I unfortunately can't find a picture of it.View attachment 52274
X대역 AESA 안테나용 SIP기반 소형 반도체송수신 조립체 개발
상용기술인 시스템 인 패키지(SIP) 기술과 경·연성 인쇄회로기판(Rigid-Flexible PCB)을 활용하여 ...
I think it will be applied in Block 2.
That Bemil report has been proven multiple time to be wrong. KF-21 block 1 AESA will have 1088 T/R modules and that's final.Your eagle eyes have precisely counted the no. right: 992! But the picture is from an older pre-prototype model (HW input test in 2018).
The actual mounted prototype has 1,088 T/R modules of finest high quality, but that's not the end of it:
"The AESA radar, which will be installed and tested on the KF-X from 2023, will be 20% larger than it is now and the number of modules will increase that much, according to savvy sources. This means that the number of modules can reach more than 1,200. This is similar to the F-35. Dozens of targets can also be tracked at the same time."
View attachment 52280
Source: https://m.blog.naver.com/beatleslike/221829910634
Please read the original source from above:
KF-X AESA 탑재시제 T/R 모듈 추론
네이버 테크플러스 블로그(https://blog.naver.com/tech-plus/221329440128)에 KF-X에 탑재될 AESA ...
Hanwha AESA radar prototype in 2020:
View attachment 52285
View attachment 52286
For next blocks too ?
T/R module counts probably wouldn't change in block 2 but there's a possibility that the newer, more powerful T/R module will be used. Current Korean MMIC has a peak output of 15W. Though that's not a given since Block 2 is only 2 years apart from Block 1 and is mainly a software upgrade.
If block 1 and 2 are so similar, it is easy to upgrade block 1 to block 2 then?
You are right. I misunderstood his question.
doi.org
Oops, than I stand corrected
, missed that part. Last time I heard a Hanwha official verbally confirmed „definitely over 1,000“ whatever that means. All the T/R module number counts are educated guestimates, we don‘t know for sure what’s under the black cover.
That exactly is the plan. All block 1 aircrafts will be upgraded to block 2 as soon as it's developed. To quote KAI engineers, "almost every hardware for block 2 are already in place. The difference is getting the softwares in place and certifying them for use".
The image I'm talking about is of direct comparison of Korean X-band T/R modules from 2006 until now developed for the airborne AESA development program, to scale. It provides a very good perspective on how far Korean AESA development matured and how smaller the T/R modules have become over time. I've searched on google based on few key words but that image seems lost. Will be great to find it.You are right. I misunderstood his question.
A study from 2006 to 2009(T/R Module Development for X-Band Active Phased-Array Radar) led to the creation of Korea's first Active Phased Array Antenna.
View attachment 52428 View attachment 52430 View attachment 52429
T/R Module Development for X-Band Active Phased-Array Radar -The Journal of Korean Institute of Electromagnetic Engineering and Science | Korea Science
본 논문에서는 능동 위상 배열 레이더에 사용되는 X-밴드 송수신 모듈의 설계와 측정 결과에 대해 기술한다. 일반적으로 능동 위상 배열 레이더는 고출력, 낮은 잡음 지수, 높은 TOI(Third Order Intercept), 송수신에서의 충분한 이득을 갖는 반도체 송수신 모듈을 요구한다. 송수신 모듈은 광대역에서 9 W의 출력 특성을 나타낸다. 잡음 지수는 2.8 dB로 낮다. 위상과 이득은 각각 6비트 위상 변위기와 5비트 감쇄기로 조정된다. LTCC(Low Temperature Co-fired Ceramic)을 사용하여...
I forgot that there was a series of history.
It's a useful image according to your explanation. But I can't find it. Ha ha.
I see Indians even in the comments under this video. The same thing happens with the TF-X videos. According to them, all airplanes are bad copies and supported by foreign countries, only their own airplanes are original and made with domestic facilities.
Couldn‘t care less, what some random dudes have to say about KF-21 on the internet. Last time I checked, Indians love to buy Korean cars, smartphones, TVs, home appliances, cosmetics … and K9s. Many also enjoy Korean dramas, TV shows and Kpop.
Wasn't it aluminium?
