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Antenna able to reduce voltage standing-wave ratio

A voltage standing wave ratio and antenna technology, applied to antennas, devices and circuits that enable antennas to work in different bands at the same time, can solve problems that affect the communication effect of mobile phones, signals cannot be effectively transmitted, and signal standing waves increase

Inactive Publication Date: 2005-11-09
QUANTA COMPUTER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the miniaturization of mobile phones, the space available for accommodating electronic components is becoming more and more limited, so that the antenna assembled in the mobile phone cannot keep a safe enough distance from other electronic components, causing mutual interference between the two, so impedance may occur Mismatch, etc., increase the reflectivity of the antenna signal, and increase the standing wave of the signal, that is, the increase of the voltage standing wave ratio (Voltage Standing Wave Ratio) of the signal, making the signal unable to be effectively transmitted, and affecting the communication effect of the mobile phone

Method used

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  • Antenna able to reduce voltage standing-wave ratio
  • Antenna able to reduce voltage standing-wave ratio
  • Antenna able to reduce voltage standing-wave ratio

Examples

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Embodiment Construction

[0012] refer to figure 2 , is a preferred embodiment of the present invention. This preferred embodiment is a hidden dual-band antenna 2 . The antenna 2 generally includes an antenna element portion 3 and a ground portion 4 .

[0013] The antenna element part 3 is electrically connected to the radio frequency circuit of the mobile phone to respond to two different frequency signals, so it has a first part 31 for functioning in the first frequency band and a second part 31 for different first frequency bands The second part 32 that acts in the two frequency bands, in this embodiment, the first part 31 is used in DSC communication, so the scope of the first frequency band is about 1700~1900MHz, the length of the first part 31 is about equal to the DSC signal (such as 1800MHz ) of a quarter wavelength (1 / 4λ H ), the second part 32 is used in GSM communication, so the second frequency band range is about 800MHz~1000MHz, and the length of the second part 32 is about equal to a ...

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Abstract

The present invention dislcoses a antenna being able to reduce the voltage standing wave ratio. The antenna includes the antenna element part, the grounding part and the metal conducting wire. The antenna element part is connected to the ratio frequency circuit electrically, taking effect in at least one frequency band. The grounding part is connected to the antenna element part, providing the function of grounding effect. The antenna is characterized by that at least one metal conducting wire is connected to the surrounding of the grounding part in order to change the current distribution so as to reach the effect of reducing the voltage standing wave ratio.

Description

technical field [0001] The invention relates to an antenna, in particular to an antenna capable of reducing the voltage standing wave ratio. Background technique [0002] Due to the advent of the mobile communication era, mobile phones have gradually become one of the necessary supplies for personal use. In the production design of mobile phones, portability and aesthetics have become important considerations for mobile phone products. In recent years, mobile phones It is obviously developing towards a short and thin trend. In addition, in order to prevent the exposed antenna from being easily damaged by external forces and destroying the overall aesthetics of the mobile phone, the hidden antenna built into the mobile phone has become a trend. [0003] Such as figure 1 , is a traditional stable dual-band antenna 1 . The antenna 1 is made of conductive material and includes an antenna element portion 11 and a ground portion 12 . The antenna element part 11 is a tortuous c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q5/00H04B1/40
Inventor 吴裕源蔡调兴
Owner QUANTA COMPUTER INC