Invention Grant
US07642977B2 Extendable built-in antenna unit of mobile device 有权
可扩展的移动设备的内置天线单元

Extendable built-in antenna unit of mobile device
Abstract:
An extendable built-in antenna unit for a mobile device is disclosed that includes a whip antenna, a helical antenna, an antenna receiving part and an intenna pattern. The helical antenna may be extractably and retractably mounted in the antenna receiving part. The whip antenna may be extractably and retractably mounted in the helical antenna. The helical antenna and the intenna pattern may be formed with lengths determined according to the resonance frequency.
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