RADAR APPARATUS

摘要

A radar apparatus wherein even though a pair of propagation paths are provided which propagate transport signals to a pair of transmission antennas spaced by a given distance and even though a switch is provided which distributes the transport signal to the pair of propagation paths, yet the search performance is prevented from degrading. The radar apparatus has an oscillator that outputs a radar signal the frequency of which is lower than the predetermined frequency; a switch that distributes the radar signal outputted by the oscillator to the propagation path pair lead to the transmission antenna pair; and a pair of multipliers that are connected to the pair of propagation paths, respectively, and that convert the frequencies of the radar signals to the predetermined frequency for output to the transmission antenna pair. Thus, the frequencies of the transport signals passing through the switch and along the propagation paths are reduced, whereby the insertion loss of the switch and the propagation loss of the propagation paths can be suppressed, thereby preventing the search performance from degrading due to a decreasing intensity of the transport signals.