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Optimization isolation antenna structure

A technology for isolating antennas and antennas, which is applied in the directions of antennas, antenna couplings, antenna arrays, etc., can solve the problems that the area cannot be changed freely and the isolation of antennas is reduced, and achieve the effect of increasing isolation and good radiation efficiency

Inactive Publication Date: 2016-10-12
SHANGHAI HUAZHANG INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing mobile terminal, combined with the multi-antenna design of the metal frame, the area of ​​the radiator of the antenna cannot be changed freely. If the distance is too close, the isolation between the antennas will be greatly reduced.

Method used

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Embodiment Construction

[0019] In order to describe the technical content, structural features, achieved objects and effects of the present invention in detail, the following detailed description is given in conjunction with the embodiments and the accompanying drawings.

[0020] refer to figure 1 , the present invention discloses an optimized isolation antenna structure 100, including an antenna, the antenna includes a monopole antenna 1 and a PIFA antenna 2, the monopole antenna 1 includes a first feeding point 11, a first short-circuit point 12 and a third An antenna body 13, the PIFA antenna 2 includes a second feeding point 21, a second short-circuit point 22 and a second antenna body 23, the radiator of the monopole antenna 1 adopts half the wavelength of 1800MHZ, the The radiator of the PIFA antenna 2 adopts a quarter wavelength of 1575 MHZ, so that the radio frequency current between the front ends of the first antenna body 13 and the second antenna body 23 is zero.

[0021] Wherein, the end...

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PUM

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Abstract

The invention discloses an optimization isolation antenna structure. The optimization isolation antenna structure comprises an antenna, the antenna comprises a monopole antenna and a PIFA antenna, the monopole antenna comprises a first feed point, a first short circuit point and a first antenna body, the PIFA antenna comprises a second feed point, a second short circuit point and a second antenna body, a radiator of the monopole antenna employs a half wavelength of 1800MHZ and a radiator of the PIFA antenna employs a quarter wavelength of 1575MHZ such that radio frequency currents between the front end of the first antenna body and the front end of the second antenna body are enabled to be zero. According to the invention, through such two antenna structures in different forms and adoption of the PIFA antenna with the quarter wavelength of 1575MHZ for cooperating with the monopole antenna with the half wavelength of 1800MHZ, the radio frequency currents between the two antennas are enabled to be zero, the isolation can be effectively enhanced, the radiation efficiency is quite good, and the optimization isolation antenna structure can support a 4G down frequency band needed by all domestic networks and a three-in-one antenna frequency range.

Description

technical field [0001] The present invention relates to an antenna structure, in particular to an antenna structure with high isolation. Background technique [0002] In some mobile terminals, such as smart phones and flat panel antennas, systems with different frequency ranges are often used, which often requires multi-antenna design. Moreover, with the increasing requirements for metal appearance of mobile terminals, the demand for metal appearance combined with antenna design is increasing. . [0003] However, in the existing mobile terminal, combined with the multi-antenna design of the metal frame, the area of ​​the radiator of the antenna cannot be freely changed. If the distance is too close, the isolation between the antennas will be greatly reduced. SUMMARY OF THE INVENTION [0004] The object of the present invention is to provide an antenna structure with good isolation. [0005] In order to achieve the above purpose, the present invention discloses an optimiz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q5/00H01Q1/44H01Q21/00H01Q1/52H01Q1/24
CPCH01Q1/242H01Q1/36H01Q1/44H01Q1/52H01Q1/521H01Q5/00H01Q21/00
Inventor 张南粘明源陈威谕林家正陈建勋
Owner SHANGHAI HUAZHANG INFORMATION TECH CO LTD