CONVERTER FOR RECEIVING CIRCULARLY POLARIZED WAVE AND LINEARLY POLARIZED WAVE

PROBLEM TO BE SOLVED: To receive the radio waves of one-way circularly polarized wave and linearly polarized wave transmitted from two satellites on the same orbit through one antenna device. SOLUTION: The signals of circularly and linearly polarized waves transmitted from two satellites on the same orbit are received by a horn circuit part 1 and the signals are synthesized while delaying one of these signals at 90 deg. so as to extract the signal of clockwise polarized wave. This signal of clockwise polarized wave is converted to the signal of an intermediate frequency(IF) band by a mixer 14 and sent from an output terminal 19 to a BS tuner, for example. Besides, any one of signals of vertically and horizontally polarized wave received by a first substrate probe 2 and a second substrate probe 3 is selected by a switching signal from a CS tuner and that selected signal is converted to the signal of the IF band and sent from an output terminal 17 to the CS tuner.