| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna assembly which can be protected against moisture condensation and icing by the use of the exhaust heat of an antenna module itself without using a heating unit or an air conditioner. SOLUTION: An antennal cooling device is equipped with an air intake/exhaust unit 5 which exhausts hot air heated by heat released from the antenna module 2 outside a cabinet 1 holding the array antenna assembly and takes cooling air into the cabinet 1 from outside the cabinet 1, a temperature detector 6 detects the temperature of the cooling air taken into the cabinet 1 by the air intake/exhaust unit 5 and outputs temperature information, and a cooling air temperature control device 11 which controls the volume of mixed air of cooling air and hot air to control the temperature of cooling air so as to reduce a temperature difference between the outside and inside of the cabinet 1 when the temperature difference between the outside and inside of the cabinet 1 grows larger than a tolerance. COPYRIGHT: (C)2004,JPO&NCIPI
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