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Binary plane inverted F antenna array

An antenna array and planar technology, which is applied in the directions of antenna coupling and radiating element structure, can solve the problems of large center-to-centre distance between antenna units, difficulty in meeting MIMO communication requirements, complex structure, etc., and achieve high isolation, easy fabrication and integration, compact effect

Inactive Publication Date: 2012-08-29
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But no matter which method is used, the center-to-center spacing of the antenna elements is relatively large
And the structure is complex, it is difficult to meet the needs of MIMO communication

Method used

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  • Binary plane inverted F antenna array
  • Binary plane inverted F antenna array
  • Binary plane inverted F antenna array

Examples

Experimental program
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Effect test

Embodiment Construction

[0010] Further illustrate the present invention below in conjunction with accompanying drawing.

[0011] refer to figure 1 , the binary planar inverted-F antenna array of the present invention comprises a PCB dielectric board 1, a metal floor 2 fixed on the PCB dielectric board, the metal floor has a slot 3, and two flat inverted-F antennas 4 are fixed in parallel on both sides of the slot. On the other hand, the adjacent inner edges 5 of the two planar inverted F antennas are respectively in the same plane as the slot edges where they are located, and the adjacent inner edges 5 of the two planar inverted F antennas and the through slot 3 jointly form a λ / 2 slot antenna.

[0012] When working, use the λ / 2 slot antenna formed by the adjacent inner sides of the two planar inverted F antennas and the through slot to weaken the coupling between the two PIFAs and isolate the frequency f at the strongest point ISO It can be expressed as the following formula:

[0013] ...

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PUM

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Abstract

The invention discloses a binary plane inverted F antenna array, comprising a PCB medium board, and a metal floorboard fixed on the PCB medium board, wherein the metal floorboard has a through groove, two plane inverted F antennae are fixed at both sides of the through groove in parallel, the adjacent inner edges of the two plane inverted F antennae are respectively positioned at the same plane with the groove edge, the adjacent inner edges of the two plane inverted F antennae and the through groove form a lambda / 2 groove antenna together, so that the coupling between two PIFAs can be weakened. The antenna array has the advantages of high isolation, low cost, compact structure, convenient manufacturing and integration, and the like.

Description

technical field [0001] The invention relates to a binary planar inverted-F antenna array. Background technique [0002] In MIMO (Multiple Antenna Input, Multiple Antenna Output) communication, multiple antennas are required to transmit and simultaneously receive multiple antennas. All transmit and receive antennas operate on the same frequency. In order to ensure a high transmission rate, all antennas should ensure a small coupling. At the same time, the miniaturization and low cost of the mobile terminal are required in MIMO communication. A traditional method for improving the isolation between antennas is generally to increase the spacing between antenna array elements or to put two antennas with different polarization modes together. But no matter which method is used, the center-to-center spacing of the antenna elements is relatively large. Moreover, the structure is complex, and it is difficult to meet the requirements of MIMO communication. Contents of the inven...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q1/52
Inventor 张帅何赛灵
Owner ZHEJIANG UNIV