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Planar antenna for multi-requency mobile phones

A technology for mobile phones and planar antennas, applied to antennas on movable objects, structural forms of radiating elements, etc., can solve problems such as the operating frequency range cannot be covered, and the bandwidth is narrow

Inactive Publication Date: 2006-02-08
QUANTA COMPUTER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although the above-mentioned planar antenna 3 can be used by general dual-band (i.e. including GSM900 and DCS1800) mobile phones, when responding to high frequencies, because the high-frequency response is generated by induction, its bandwidth is relatively narrow. For mobile phones, the above-mentioned planar antenna 3 has the problem that its operating frequency range cannot cover up to 1900MHz

Method used

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  • Planar antenna for multi-requency mobile phones
  • Planar antenna for multi-requency mobile phones
  • Planar antenna for multi-requency mobile phones

Examples

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Embodiment Construction

[0025] Such as Figure 6 As shown, the multi-frequency mobile phone planar antenna 4 of this embodiment includes an insulating substrate 41 , an antenna portion 42 , a signal feed-in terminal 43 , and a conductive portion 44 .

[0026] The insulating substrate 41 can be a PCB circuit board, which has a first surface 411 and a second surface 412 . The antenna portion 42 has first and second antenna portions 421, 422 respectively arranged on the first and second surfaces 411, 412 in a metal wire loop winding manner, the width of the first antenna portion 421 and the second antenna portion 422 Similarly, the length of the first antenna part 421 is longer than the length of the second antenna part 422 . And the first antenna part 421 can be divided into a longer front section 423 and a shorter rear section 424 .

[0027] The signal feeding end 43 is located on the first surface 411 of the insulating substrate 41 and connected to the first antenna portion 421 .

[0028] The cond...

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Abstract

The plane antenna comprises following parts: Dielectric basis material possesses first and second surfaces; antenna part comprises first and second antenna subsections possessing first and second surfaces with relevant loop being wound. Feedthrough terminal located on the dielectric basis is connected to antenna part. Conduction interface is connected to the first and second antenna subsections electrically. The first antenna subsection is suitable for inducing electromagnetic wave signal in low frequency, and the second antenna subsection is suitable for inducing electromagnetic wave signal in high frequency. Thus, bandwidth is raised to cover range in three frequencies.

Description

technical field [0001] The invention relates to a multi-frequency mobile phone planar antenna, in particular to a multi-frequency mobile phone planar antenna applicable to triple-frequency mobile phones. Background technique [0002] There are many types of antennas for receiving and transmitting electromagnetic signals and are widely used in various electronic products. Take antennas applied to mobile phones as an example, such as figure 1 As shown, it is a helical antenna (Helical antenna) 1 , which is applicable to dual-frequency ranges, and thus forms two-stage helical pitches with different densities. However, it is not easy to control the pitch angle during manufacture, and it is easy to accidentally change due to external force during the picking process, thereby affecting the length of the overall antenna 1 and the range of the transmitting and receiving frequencies. And because the size of the antenna 1 is not large, the power generated at high frequencies is rela...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/27H01Q1/38
Inventor 蔡调兴
Owner QUANTA COMPUTER INC