X-band T / R Module Design

Phased array radar(PAR) can rapidly change the direction and the shape of its beam.It also can easily form multiple transmission and receive beams.When applied multi-transmitters,it can combine power in space.Because of all of these features, PAR can accomplish many functions.So it can steadily track multiple high-speed targets.Even using a single PAR,it can transmit high radiation power.For extending the detection range,enhancing measurement accuracy,promoting the ability of sub-clutter visibility,more and more people have devoted this kind of radar.For any active phased array radar,its each radiating dement or several radiating elements connect a solid T/R module.An active phased array radar has hundreds of T/R modules.60-80%of the cost of a radar are of these modules.So we need small, light,low cost,high reliability T/R module.All of these are one of keys of the performance of a radar.Our target is that only using commercial available components,we study the feasibility of producing X-band high-performance,low-cost T/R module.After exploring and validating all the key techniques of designing and producing T/R module,we have found some ways.In recent years,as the development of the MMICs,all of the sub-circuits of consisting a T/R module have integrated and can be commercial available.In this article,phase shifter and LNA are ICs.Others are HMICs.I have accomplished the following goals.1.Study T/R module's configuration and research the manufacture method.2.Design PA and limiter.3.Simulate and optimize the model of the gold bonding.4.Design the protection circuit of PA.5.Test and analyses the X-band T/R module.