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Multi-frequency mobile telephone antenna

A mobile phone and antenna technology, applied in the field of multi-frequency mobile phone antennas, can solve the problem of high-frequency antennas ignoring the bandwidth requirements of low-frequency antennas

Inactive Publication Date: 2006-01-25
QUANTA COMPUTER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method only considers the high-frequency antenna and ignores the bandwidth requirements of the low-frequency antenna.

Method used

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  • Multi-frequency mobile telephone antenna
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  • Multi-frequency mobile telephone antenna

Examples

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Embodiment Construction

[0015] refer to image 3 Shown is a preferred embodiment of the multi-frequency mobile phone antenna of the present invention. The multi-frequency mobile phone antenna 3 includes a planar antenna 31 , a planar loop antenna 32 and a parasitic element 33 . And in the design of the antenna, the general low-frequency carrier signal (900MHz) uses a quarter wavelength (1 / 4λ) as the induction wavelength at resonance, while the high-frequency carrier signal (1800MHz) uses a half-wavelength ( 1 / 2λ) as the induction wavelength at resonance. Therefore, in the present embodiment, the patch antenna 31 is a traditional metal patch antenna (patch antenna), and its shape is designed as a strip and its area is equivalent to a quarter wavelength of the mobile phone carrier signal. Therefore, the patch antenna 31 is a low-frequency antenna suitable for the GSM900 system, and a signal feed-in point 311 and a grounding point 312 are respectively provided at the opposite ends of the panel antenna ...

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Abstract

This invention provides a multifrequency mobile phone antenna including a panel antenna as the low frequency antenna and a plane circuit antenna adjacent to a side of the said panel antenna as the high frequency antenna and a residual elements adjacent to the said panel and the said plane circuit antenna residually coupled to the said panel antenna so as to reduce the influence of the earth side to the grain and to increase width of low and high frequencies.

Description

technical field [0001] The invention relates to a mobile phone antenna, in particular to a multi-frequency mobile phone antenna which can reduce the influence of the ground plane of the mobile phone on the gain of the antenna and simultaneously increase the bandwidth of the antenna. Background technique [0002] Nowadays, in order to meet the requirements of lightness, shortness and beauty, a hidden antenna has been developed in the mobile phone, and in order to reduce the antenna’s occupation of the internal space of the mobile phone, a hidden planar antenna has been developed, and the planar Whether the antenna is designed well or not often determines the communication quality of the mobile phone. Such as figure 1 As shown, it is a traditional inverted F-shaped planar antenna 1, which forms a bent cutting groove on a thin metal plate 1, and divides the thin metal plate into a first antenna part 11 and a second antenna part 12. , making the first ant...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q13/00H01Q1/24
Inventor 彭奂喆蔡调兴施凯
Owner QUANTA COMPUTER INC
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