Development of Hi-Rel Ka-Band Multipack Downconverter assembly for High Throughput Satellite

This paper reports the development of Hi-Rel Ka-Band multipack down converter assembly for High throughput satellite (HTS). Multipack assembly consist of Main and Redundant Reference oscillator, Dual redundant Local Oscillator (LO) & four nos. of dual Down Converters. Dual Downconverter unit is realized using latest MMIC technology for excellent broadband electrical performance while exhibiting smallest dimension & mass. Modular design of downconverter with the use of external LO allows it to be reconfigured for different frequency plans. LO section is realized using successive multiplier chain approach & Single mechanical housed both main & redundant LO.