Housing for antenna device

A housing for a satellite antenna device for mounting on a moving body, the antenna device including a satellite antenna body and an automatic tracking mechanism, said housing comprising:

• a lower portion made of metal and including a bottom wall on which said antenna device is fixedly secured, and a side wall of a generally inverted U-shaped cross-section which extends upwardly outwardly from a peripheral edge of said bottom wall, and then extends obliquely downwardly;
• an upper portion releasably connected to said lower portion in a watertight manner, said upper portion being made of a dielectric material and including a generally flat top wall, and a side wall extending from a peripheral edge of said top wall obliquely downwardly outwardly to be held in contact with the obliquely downwardly-extending portion of said inverted U-shaped side wall of said lower portion, thus forming a contact surface therebetween;
• and
• fastening means for releasably fastening said side walls of said upper and lower portions together while firmly maintaining watertight contact at said contact surface which is formed by contacting said inverted U-shaped side wall of the lower portion with a side surface of said upper portion, said fastening means surely holding a distance between said upper portion and a surface of said antenna body so as to receive electric wave from a satellite in a state of maximum gain at said contact surface.