ANTENNA APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide an antenna apparatus that can be manufactured easily and can prevent a second antenna section from being disconnected from a first antenna section. SOLUTION: The second antenna section 4 comprises a second antenna element 4a and a hollow cylindrical body 4b where the second antenna element 4a is mounted while the upper and lower ends are open. A resin joint member 2 comprises a lower section 2a that is connected to a protection covering 1b and an upper section 2b that is formed in one piece with the lower section 2a while being accommodated in the hollow cylindrical body 4b and whose outer diameter is longer than that of the lower section 2a. A connection fixture 3 comprises a connection cylindrical body 3a where the lower section 2a of the resin joint member 2 is inserted, and a locking projection 3b that is formed at the upper outer periphery section of the connection cylindrical body 3a and supports the lower end section of the upper section 2b of the resin joint member 2 and the lower end section of the hollow cylindrical section 4b.