发明授权
US5455595A Antenna for portable radio communication apparatus 失效
用于便携式无线电通信装置的天线

Antenna for portable radio communication apparatus
摘要:
An antenna mounted on and retractable into a casing of a portable radio communication apparatus. When the antenna is pulled out of the casing, it plays the role of a .lambda./2 whip antenna. Even when the antenna is retracted into the casing, it has substantially the same gain as when pulled out from the casing.
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