The need for a new generation of antennas - The Simulsat solution. II

The need for a scanning or multi-beam antenna for the TV industry resulted in the production of a multi-satellite spherical antenna: Simulsat. Criteria for the antenna included a maximum field of view within practical mechanical and weight constraints, an economical installation cost, and a constant performance across the field of view. With the Simulsat symmetrical antenna, the off-reflector-axis feeds are centered on the boresight line, between the satellite and the horizontal axis of the antenna. The sidelobe of the antenna is closer to the main lobe, making it easier to focus and match the satellite arc. The Simulsat frequency range is 3.7-4.2 GHz, and the antenna has a gain at midband of 43.5 dB. The beam separation is 3 deg, and the field of view is 52 deg.