WIRELESS DIRECTION DETECTING DEVICE

摘要

PURPOSE:To enhance the accuracy and shorten the adjusting by receiving the electomagnetic wave radiated from a center of the azimuth antenna. CONSTITUTION:The electromagnetic wave radiation device 9 is disposed at a center of the azimuth antenna 1 in which a plurality of azimuth antenna elements #1- #n in circular shape. The correction circuit 8 having an indicator 7 is disposed between the phase detector 4 and the azimuth determination device 6. Thus, when the elctromagnetic wave from the electric wave radiating device 9 by the azimuth antenna 1 which is successively switched through the antenna change over device 2 in accordance with the switching signal generator 5, and the phase change between the respective antenna elements #1-#n, the error voltage corresponding to the phase difference is detected by the phase detector 4 to display the error amount on the indicator 7. In accordance with the error voltage the correction circuit 8 generates the correction voltage required for correcting the phase differece, adding and subtraction thereof is done and the phase change is corrected.