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Earthing device for concealed aerial of folding mobile phone

A grounding device and foldable technology, which are applied to antenna grounding devices, antennas suitable for movable objects, etc., can solve the problems of insufficient ground plane, inability to effectively display the radiation intensity of the antenna, and the effect of foldable mobile phone communication transmission and reception.

Inactive Publication Date: 2005-10-05
QUANTA COMPUTER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Since the ground plane of the hidden antenna of the foldable mobile phone must be at least 1 / 3~1 / 4 wavelength, the radiation intensity of the antenna can be effectively displayed. For the antenna that uses the GSM900 system to send and receive 900MHz carrier signals, since the wavelength of the carrier signal is about 33.3 cm, the ground plane of the antenna must be at least 11.1~8.3 cm. However, the folded length is only 60~70mm (ie 6 ~7 cm) mobile phone, the ground plane is really insufficient, resulting in the antenna radiation intensity can not be effectively displayed, resulting in insufficient antenna radiation intensity, and the effect of communication transmission and reception of the foldable mobile phone is affected to a certain extent

Method used

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  • Earthing device for concealed aerial of folding mobile phone
  • Earthing device for concealed aerial of folding mobile phone
  • Earthing device for concealed aerial of folding mobile phone

Examples

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Embodiment Construction

[0012] Refer to figure 1 As shown, the figure shows a first preferred embodiment of a grounding device for a foldable mobile phone hidden antenna of the present invention. The foldable mobile phone 1 includes a first housing 11 and a second housing 12, and the first housing 11 and the second housing 12 are pivotally connected with a pivotal member 13 at one side edge, so as to be in a use state that can be opened or folded in half. Wherein, the first casing 11 has a display screen 111, and the second casing 12 is provided with a circuit board 121, so that the keyboard and audio digital / analog conversion circuits can be arranged on the circuit board 121. In this embodiment, the mobile phone 1 has two hidden antennas, namely, a high-frequency antenna 21 suitable for the DCS1800 system or PCS1900 system provided in the first housing 11, and a high-frequency antenna 21 provided in the second housing 12 and connected to the The circuit board 121 is electrically connected to a low-freq...

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Abstract

The present invention is the earthing unit for hidden antenna of folded cellphone. The folded cellphone includes one first casing with display screen, and one second casing, which is pivoted to the first casing for folding and has one circuit board. The second casing has also one low-frequency antenna connected electrically to the circuit board, and the circuit board has also one earthing unit, which is one bent continuous conductor in the length of one quarter of the carrier wavelength transmitted in the low-frequency antenna.

Description

(1) Technical field [0001] The invention relates to a grounding device for a concealed antenna of a foldable mobile phone, in particular to a grounding device for a concealed antenna of a foldable mobile phone which can effectively improve the radiation intensity of the antenna. (2) Background technology [0002] Since the ground plane of the hidden antenna of the folding mobile phone must be at least 1 / 3~1 / 4 wavelength, the radiation intensity of the antenna can be effectively expressed. However, the folding mobile phone needs to be light, thin and short, and its folded length is only 60~70mm. For an antenna that uses the GSM900 system to transmit and receive a 900MHz carrier signal, since the wavelength of the carrier signal is about 33.3 cm, the ground plane of the antenna must be at least 11.1 to 8.3 cm. However, the folded length is only 60 to 70 mm (that is, 6 ~7 cm) mobile phone, the ground plane is seriously insufficient, resulting in the antenna's radiation intensity can...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/27H01Q1/48
Inventor 蔡调兴
Owner QUANTA COMPUTER INC