Dual-band transmitters for small satellite earth stations

摘要

The present invention relates to a dual band transmission apparatus for a small satellite earth station, comprising a variable attenuator (20) for obtaining a constant output, an intermediate amplifier (21) for amplifying the output of the attenuator (20) A YIG voltage control unit 23 for selectively driving the switching unit 24 to determine a transmission frequency on the basis of the analog-converted signal, A mixing unit 26 for mixing the transmission reference signal applied through the switching unit 24 and the intermediate amplified signal and a mixing unit 26 for mixing the mixed signal in the mixing unit 26 with a first transmission frequency And a second frequency signal generator 21 for generating a converted first frequency signal 28 and a second transmission frequency (6 GHz) band signal.