Ultra-wideband MIMO antenna

An ultra-wideband and antenna technology, applied in the field of ultra-wideband multiple-input multiple-output antennas, can solve the problems of insufficient isolation, insufficient compact size, affecting the application of MIMO antennas, etc., to achieve low cost, high isolation, and improved current distribution characteristics. Effect

Active Publication Date: 2019-03-19
BEIJING RES INST OF MECHANICAL & ELECTRICAL TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, MIMO UWB antennas mostly adopt monopole forms. Based on this type of MIMO UWB antennas, there are problems such as insufficient isolation or insufficient compact size, which seriously affects the use of MIMO antennas in the UWB field in MIMO radar systems or wireless communications. field application

Method used

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Embodiment Construction

[0026] Embodiments of the present invention will be described below with reference to the drawings. Elements and features described in one drawing or one embodiment of the present invention may be combined with elements and features shown in one or more other drawings or embodiments. It should be noted that representation and description of components and processes that are not relevant to the present invention and known to those of ordinary skill in the art are omitted from the drawings and descriptions for the purpose of clarity.

[0027] In a specific embodiment of the present invention, a MIMO antenna for ultra-wideband communication or imaging radar is proposed, the frequency band of the antenna is 2.8GHz-12GHz, and the isolation of adjacent array units is better than 17dB.

[0028] Figures 1A-1C They are respectively a schematic diagram of a disassembled three-dimensional structure of a MIMO antenna according to a specific embodiment of the present invention, a schemati...

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Abstract

The invention provides an ultra-wideband MIMO antenna. The ultra-wideband MIMO antenna comprises four antenna array elements with the same structure, and each array element is fed separately; positions of adjacent array elements are mutually vertical and are isolated through a rectangular slot, and the tail ends of the rectangular slots are electrically connected at the center position of the MIMOantenna; each antenna array element comprises a grounding plate, a feeding unit and a parasitic patch which are printed on the surface of an antenna dielectric plate respectively; an elliptical areais also cut off on the grounding plate; the feeding unit uses elliptical and rectangular areas and digs out an elliptical area as feeding parts of the antenna; and due to the coupling effects in the above mode, on one hand, high isolation is acquired among unit, and on the other hand, while the antenna acquires the ultra-wideband characteristic, the antenna has the advantages of miniaturization and compact structure and the like.

Description

technical field [0001] The invention belongs to the technical field of ultra-wideband in the electronic industry, and in particular relates to an ultra-wideband multiple-input multiple-output (MIMO) antenna. Background technique [0002] Ultra-wideband technology usually adopts a non-carrier frequency pulse system to obtain rich spectrum information through the characteristics of ultra-wideband. In the fields of through-wall imaging, ground penetrating radar, and ultra-wideband communication, ultra-wideband technology has a wide range of applications. Through-wall imaging radar has the characteristics of fast, efficient, and non-intrusive detection. Ultra-wideband communication has the advantages of large capacity, high speed, and high safety factor. In recent decades, with the rapid development of electronic devices, UWB technology has also been widely used in national economy and municipal construction. [0003] As the front-end sensor of the transceiver, the antenna pla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50H01Q1/52H01Q21/22
CPCH01Q1/38H01Q1/48H01Q1/50H01Q1/521H01Q21/22
Inventor 王友成赵欣池庆玺裴虎城
Owner BEIJING RES INST OF MECHANICAL & ELECTRICAL TECH
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