Development of L-band feed arrays for INMARSAT-3

The author gives a general review of some of the aspects of the development of the feed arrays for the L-band transmit and receive antenna arrays on INMARSAT-3. The work described has been carried out over the last two years in the Antenna Group at Matra Marconi Space Portsmouth. Some of the initial trade-offs in the design are described leading to the development of the BSE array in the current design. Details of the design techniques and the final implementation of the array feeds are described