Hisiwell has newly launched quad-channel SiP T/R modules as below:
HX9KU4120G15,
http://www.hisiwell.com/TransceiverAmplifierMultifunctionalChips/873.html
HX9X4010G16,
http://www.hisiwell.com/TransceiverAmplifierMultifunctionalChips/874.html
HX9X4020G16
http://www.hisiwell.com/TransceiverAmplifierMultifunctionalChips/875.html
These products can be used in Active Phased Array Antenna systems in fields like low-altitude, slow-moving and small aircrafts, etc.
Please visit the products pages for more details.