A satellite in geostationary orbit serves an elliptical zone on the earth's surface. The major and minor axes antenna beam widths are OF-w = 3.6 and Os-N = 2.4 at the satellite. The satellite has separate antennas for the uplink and the downlink, operating at frequencies of 14.1 and 11.5 GHz, respectively. a) Assume that the antennas horn shape antennas with rectangular aperture. Estimate the dimensions of the antennas. [3] b) Estimate the gain of each antenna. [3]