MILLIMETER WAVE TRANSMITTER, MILLIMETER WAVE RECEIVER, MILLIMETER WAVE TRANSMITTING AND RECEIVING SYSTEM AND ELECTRONIC APPLIANCE

摘要

PROBLEM TO BE SOLVED: To eliminate complicated wiring and to perform satellite broadcasting (BS and CS) and ground broadcasting (VHF and UHF) indoors with millimeter wave radio transmission by inputting plural broadcasting waves, upconverting the broadcasting waves into a millimeter wave and receiving the millimeter wave. SOLUTION: A millimeter wave transmitter 20 comprises a frequency arranging device 22 which arranges plural TV broadcasting waves on a frequency axis, an upconverter 23 which converts an intermediate frequency into a radio signal of a millimeter band of 60 GHz band and an antenna 25. A millimeter wave receiver 21 consists of an antenna 25, a down converter 24 which converts a millimeter wave band radio signal into an intermediate frequency band and a frequency inverse arranging device 26 which converts intermediate frequency bands arranged on the frequency axis into a normal TV broadcasting wave. Since a millimeter wave of 60 GHz band used here has a remarkably high frequency and broad usable bandwidth in comparison with the current satellite and ground TV broadcasting waves, it can transmit the satellite and ground broadcasting all together at a time.