Analysis of a reflector antenna with an adjustable double beam

The possibility of using a leaky-wave structure as a reception antenna to simultaneously receive emissions from two different satellites is presented. This structure consists of a continuously and longitudinally slotted rectangular waveguide, continuous in its broader wall, illuminating a parabolic cylindrical reflector, with a suitable gain for a satellite transmission link. The transverse response method was used to consider distributed parameters of the equivalent line. The discontinuity is considered to modify the distributed capacitance in part of the equivalent line. By properly dimensioning the structure, an antenna was designed with a double beam, adjustable by the variation of the waveguide physical parameters and with a gain depending upon the reflector.<>