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Eight-frequency-band plane printing mobile phone antenna

A mobile phone antenna, plane technology, applied to antennas, devices that make the antennas work in different bands at the same time, radiating element structures, etc. The effect of small size, simple structure and convenient debugging

Inactive Publication Date: 2014-11-05
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This design method can easily adjust the fundamental modes of the two branches, but it is difficult to adjust the high-order modes independently, which increases the complexity of debugging

Method used

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  • Eight-frequency-band plane printing mobile phone antenna
  • Eight-frequency-band plane printing mobile phone antenna
  • Eight-frequency-band plane printing mobile phone antenna

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Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0030] figure 1 It is a structural schematic diagram of the eight-band planar printed mobile phone antenna of the present invention, as figure 1 As shown, the eight-band planar printed mobile phone antenna of the present invention includes: a dielectric board 6 , a main floor 1 , a signal feed-in line 2 , a parasitic ground branch 3 , and an excitation unit 4 . The main floor 1 and the parasitic branch 3 are printed on one side of the dielectric board 6 , and the signal feed-in line 2 and the excitation unit 4 are printed on the other side of the dielectric board. The main floor 1 is used to simulate the circuit board of a mobile phone. An L-shaped open circuit groove 5 is formed on the parasitic ground branch 3 . The excitation unit 4 includes ...

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Abstract

The invention discloses an eight-frequency-band plane printing mobile phone antenna which comprises a dielectric slab, a main floor, a parasitism ground branch, an exciting unit and a signal feed-in line. The main floor and the parasitism ground branch are printed on one face of the dielectric slab, and the exciting unit and the signal feed-in line are printed on the other face of the dielectric slab. The main floor is directly connected with the parasitism ground branch, and an L-shaped gap is formed between the main floor and the parasitism ground branch. An L-shaped open slot is formed in the tail end of the parasitism ground branch. The exciting unit comprises a first branch, a second branch and a third branch, and the first branch, the second branch and the third branch are all directly connected with the signal feed-in line. The mobile phone antenna is of a plane structure, the plane printing technology can be adopted, multiple resonance points are utilized for broadening bandwidths, all the resonance points can be conveniently adjusted, two wide bandwidths are formed at the low low-frequency band and the high-frequency band, and therefore all mobile phone frequency bands of the current 4G communication are covered. Compared with the prior art, the eight-frequency-band plane printing mobile phone antenna has the advantages of being of the two-dimensional structure, having multi-frequency-band wide bands and being easy to adjust, and is applicable to various small-size mobile terminals represented by mobile phones.

Description

technical field [0001] The invention relates to a mobile terminal antenna, in particular to an eight-band planar printed mobile phone antenna. Background technique [0002] With the rapid development of mobile communication technology, mobile phones have become one of the most popular consumer electronics products in the world. The function of the mobile phone has also developed from a single voice service to an integrated service based on network, digital, multimedia video and so on. Considering that the communication protocols and allocated frequency bands adopted in different parts of the world are not the same, in order to realize global roaming, mobile terminal antennas need to be able to support multi-protocol and multi-band coverage. On the basis of 2G and 3G, 4G, which is initially put into commercial use, divides more frequency bands to achieve higher data transmission. The frequency bands covered by 4G are LTE700(698-784MHz), GSM850(824-894MHz), GSM900(880-960MHz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q1/38H01Q5/01H01Q5/10
Inventor 李越邓长江张志军冯正和
Owner TSINGHUA UNIV
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