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Mobile terminal using metal frame antenna

A mobile terminal, metal frame technology, which is applied to independent antenna unit combinations, antenna supports/installation devices, antenna devices with additional functions, etc., can solve problems such as complex matching circuit structures, achieve good RF performance, and save hardware. effect of overhead

Inactive Publication Date: 2013-11-13
苏州维特比信息技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this scheme requires more passive components such as capacitors and inductors to form a ring circuit, and the structure of the matching circuit is complex

Method used

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  • Mobile terminal using metal frame antenna
  • Mobile terminal using metal frame antenna
  • Mobile terminal using metal frame antenna

Examples

Experimental program
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Embodiment 1

[0019] This embodiment is applicable to an LTE wireless terminal with a metal frame shell, and its working frequency band is 2.3 GHz, which is common in LTE. The bandwidth requirement of the main antenna is generally 200 MHz, the bandwidth requirement of the diversity antenna is generally 50 MHz, and the working frequency band of the GPS antenna is 1.5 GHz. , the bandwidth requirement is generally 20MHz.

[0020] Such as figure 1 Shown is a schematic structural diagram of the metal frame of the mobile terminal in this embodiment. The surrounding metal frame is divided into an antenna part and a non-antenna part, and different parts are separated by slotting gaps. There are 5 slots, located on the left and right sides and top of the terminal respectively, which divide the outer frame into 5 parts: D1-D2 is the main antenna system, D3-D4 is the diversity antenna system, D4-D5 is the GPS antenna system ; D2-D3, D5-D1 is the rest of the metal frame.

[0021] The main antenna sys...

Embodiment 2

[0027] This embodiment is applicable to a UMTS wireless terminal with a metal frame shell. Its working frequency band is UMTS common 1.8GHz, and the bandwidth requirement of the main antenna is generally 200MHz. The working frequency band of the GPS antenna is 1.5GHz, and the bandwidth requirement is generally 20MHz.

[0028] The difference from the embodiment is that the UMTS wireless terminal does not need a diversity antenna system, and the length of the radiation unit of the main antenna system is approximately between 42mm and 85mm.

[0029] The invention provides an antenna structure formed by the metal frame of the mobile terminal, and realizes the main antenna, the diversity antenna and the GPS antenna system by slotting the metal frame around the terminal and reasonable circuit design. The metallization trend of the shell of the mobile terminal is met, and the implementation is simple, saving the space inside the terminal.

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Abstract

The invention discloses an antenna system formed by a metal casing of a mobile terminal, which is applicable to the field of mobile terminals. The metal frame of the mobile casing is divided into three zones, which are used as a main antenna system, a diversity antenna system and a GPS antenna system of the mobile terminal respectively and are separated from one another through groove zones; the main antenna system comprises a radiation unit, a coupling unit, a power supply excitation unit, and an earth point; the diversity antenna system and the GPS antenna system comprise radiation units, power supply excitation units and earth points; the radiation unit of each antenna system comprises a section of metal frame with a certain length.

Description

technical field [0001] The invention relates to the technical field of mobile terminals. Specifically, it relates to an antenna system constructed by utilizing a metal outer frame of a mobile terminal, and a mobile terminal using the technical solution. Background technique [0002] Traditional mobile terminals generally use plastic as the body shell, but now there is a design trend of metallizing the shell of the mobile phone. The use of a metal casing helps to improve the texture and appreciation of the mobile terminal, but it also brings challenges to the antenna design of the mobile terminal. First, the metal casing has a shielding effect on the wireless signal, and the wireless signal transmitted in the air is reflected or refracted by the metal casing, and cannot be received by the antenna as expected; second, the metal itself is a conductor, and different antennas in the mobile terminal The radio signals are conducted through the metal shell to form mutual crosstalk...

Claims

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Application Information

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IPC IPC(8): H01Q1/44H01Q1/22H01Q21/30
Inventor 李文斌
Owner 苏州维特比信息技术有限公司
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