| 摘要 |
A structure of antenna is constructed by combination of a housing and a cover by means the ultrasonic welding process. The housing is a column structure and a plurality of long protruders are axially mounted on the outer surface of the housing. The cover is a hollow column structure having an opening at one end thereof and a plurality of long channels and weldlines are axially mounted on the inner surface of the cover, wherein an interference fit is formed between the long channels and the long protruders, and the weldlines are disposed in the interference region formed between the long channels and the long protruders.
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