Triple-band MIMO (Multiple Input Multiple Output) antenna used for WLAN (Wireless Local Area Network) and WIMAX (World Interoperability for Microwave Access)

A three-passband and antenna technology, applied in the field of three-passband MIMO antennas, achieves the effects of convenient debugging, clear working mode and improved isolation

Inactive Publication Date: 2016-03-16
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Traditional MIMO antennas, due to size limitations, can only achieve a narrow-band decoupling effect
It cannot achieve better isolation performance in the case of multi-frequency or even wide-band

Method used

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  • Triple-band MIMO (Multiple Input Multiple Output) antenna used for WLAN (Wireless Local Area Network) and WIMAX (World Interoperability for Microwave Access)
  • Triple-band MIMO (Multiple Input Multiple Output) antenna used for WLAN (Wireless Local Area Network) and WIMAX (World Interoperability for Microwave Access)
  • Triple-band MIMO (Multiple Input Multiple Output) antenna used for WLAN (Wireless Local Area Network) and WIMAX (World Interoperability for Microwave Access)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0029] Such as Figure 1-Figure 4 As shown, a three-way band MIMO antenna for WLAN and WIMAX includes a dielectric substrate, and two antenna radiation structures symmetrical to the midline of the dielectric substrate are printed on the front of the dielectric substrate, and a floor 10 is printed on the back of the dielectric substrate. A U-shaped neutralization line 7 is loaded between the two antenna radiation structures, and two input feeder lines 5 and 6 printed on the front of the dielectric substrate are also included. The antenna radiation structures are connected to the input feeder lines in a one-to-one correspondence .

[0030] The radiation structures of the two antennas are the same, and both include first bent branches 1, 2, second bent branches 3, 4 and parasitic branches 8, 9, and the second bent branches 3, 4 are located on the first bent branch 1, 2 inside, the parasitic branches 8, 9 are extended from the floor 10, and the parasitic branches are connected wi...

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Abstract

The invention discloses a triple-band MIMO (Multiple Input Multiple Output) antenna used for a WLAN (Wireless Local Area Network) and WIMAX (World Interoperability for Microwave Access). The triple-band MIMO antenna comprises a dielectric substrate, wherein the front of the dielectric substrate is printed with two antenna radiation structures symmetric to a midline of the dielectric substrate, and the back of the dielectric substrate is printed with a floor; a U-shaped neutral line is loaded between the two antenna radiation structures; the triple-band MIMO antenna further comprises two input end feeders, and the antenna radiation structures are connected with the input end feeders. The triple-band MIMO antenna used for the WLAN and the WIMAX provided by the invention is simple in structure, low in processing and manufacturing cost, and high in engineering practicability.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a three-way band MIMO antenna for WLAN and WIMAX. Background technique [0002] With the rapid development of modern wireless communication technology, mobile communication systems have higher and higher requirements for antennas. Designing a three-way band MIMO antenna for WLAN and WIMAX has become a research hotspot in recent years. Multiple-input-multiple-output (MIMO) technology, because it can greatly increase the channel capacity without additionally increasing the spectrum range and input power, has increasingly become a new important research direction for antenna design. With the development of miniaturization of mobile communication equipment, the volume of antennas is required to be smaller and smaller, but the volume reduction of MIMO antennas will lead to poor isolation and increased mutual interference between different antenna ports. In order to solve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q21/30
Inventor 黄惠芬肖书光
Owner SOUTH CHINA UNIV OF TECH
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