In this paper , the design of a beacon transmitter that will be flown as a hosted payload on a geostationary satellite to enable propagation experiments at Q - band ( 37 - 41 GHz ) frequencies is presented . The beacon uses a phased locked loop stabilized dielectric resonator oscillator and a solid - state power amplifier to achieve the desired output power . The satellite beacon antenna is configured as an offset - fed cut - paraboloidal reflector .