Simplified dual-frequency antenna for mobile phone
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United States of America Patent
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-
Jul 23, 2002
Issued Date -
N/A
app pub date -
Dec 20, 2000
filing date -
Dec 20, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A simplified dual-frequency antenna for mobile phone includes an integrally stamped thin metal conductor to function as a frequency-control structure of the antenna. An upper end of the stamped thin metal conductor is a curved wave coil and a lower end thereof is an elongated contact head. The curved wave coil includes horizontal and vertical wave segments adapted to two different frequencies of 900 MHz and 1800 MHz, respectively. A cover encloses the curved wave coil to protect the coil against impact and deformation. The contact head has a stop ring mounted around a lower portion thereof and adapted to tightly fit in a lower opening of the cover. The stop ring is integrally provided at a predetermined distance below it with a bolt. By screwing the bolt into an antenna jack on a mobile phone, the antenna is removably connected to the mobile phone with a lower end of the contact head contacting with a conductive leaf spring in the mobile phone, enabling the mobile phone to receive signals.
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