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Post by challenge on Sept 19, 2015 3:08:21 GMT -5
according to information being release,KJ-2000 uses hybrid T/R rather than monolith circuit. past issue of kanwa magazine, japanese electronic angineer looking at the image of 170 ddg PAR radar,speculate that the S-band T/R module use hybrid circuit,this due her much larger antenna.the recent admission may finally proven his right. most of Chinese AESA PAR uses hybrid circuit similiar to Israel or european in the early and mid-90's.it was not until probably in the around late 2000 when Chinese make technological transition from hybrid to monolith,clear example was the appearance KJ-5000. KJ-5000 PAR antenna compare with KJ-2000 is much lighter light enough to be mounted on Y-9,(consider single PAR antenna for kj-2000 weight 9 ton) (27 ton for three antenna!) with out sacrificing her overall performance. it just like comparing motorola "brick" cell phone of the 1990's and samsung galaxy cell phone KJ-500 also emplyoed digital beam forming (DBR) make it more resistant jamming.
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