Compact Switchable RHCP/LHCP Mobile Ka-band Antenna

Full Paper — This document describes a new concept of a mobile Ka band antenna for satellite communications. The antenna shows a low profile and can cope with the stringent specification of polarization switching required in the handover from cell to cell. Transmit performance is discussed in detail and compared with an equivalent reflector antenna. In the same time, a new generation of modem allowing transmission with low power density (spreading feature) so that high bit rate return link can be achieved with compact terminal, suitable for aeronautical domain