| 摘要 |
PURPOSE:To measure an antenna pattern at the actual use by operating a transmitting/receiving module in an electronically controlled antenna at the actual working temperature. CONSTITUTION:A transmission pattern and a reception pattern are measured with a transmission-reception switching signal (a) of an actually used repetition frequency of an electronically controlled antenna 4 by controlling microwave switches 10-14. At the transmission timing, terminals are connected to one another by a signal (a) from a measuring transmitter 9 as follows: 10a to 10b, 11a to 11b, 13a to 13b and 14a to 14b. A microwave signal transmitted from the transmitter 9 is released from the electronically controlled antenna 4. A microwave signal received from a measuring horn antenna 3 is inputted into a receiver 12. At the reception timing, a microwave signal transmitted from the transmitter 9 is radiated from an antenna 3 and received by the antenna 4.
|
