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Ultra-wideband millimeter wave planar spiral circularly polarized antenna array

A technology of circularly polarized antenna and planar helix, which is applied in the field of antenna, mobile communication and satellite communication, to achieve the effect of easy processing, low cost and simple design structure

Active Publication Date: 2022-03-08
HANGZHOU DIANZI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the bandwidth of the existing millimeter-wave planar circularly polarized antenna array processed by PCB technology usually does not exceed 40%, and there is still room for improvement.

Method used

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  • Ultra-wideband millimeter wave planar spiral circularly polarized antenna array
  • Ultra-wideband millimeter wave planar spiral circularly polarized antenna array
  • Ultra-wideband millimeter wave planar spiral circularly polarized antenna array

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Embodiment Construction

[0049] Below in conjunction with specific embodiment, the present invention will be further clarified. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. After reading the present invention, those skilled in the art will understand various equivalents of the present invention Modifications in form all fall within the scope defined by the appended claims of this application.

[0050] figure 1 It is a schematic diagram of the three-dimensional layered structure of the antenna array. An ultra-wideband millimeter-wave planar spiral circularly polarized array antenna of the present invention adopts a multi-layer PCB vertical arrangement structure, including three metal layers, three dielectric substrates, and two adhesive layers. From top to bottom are the first metal layer, the first dielectric layer 4, the first adhesive layer 5, the second dielectric layer 6, the secon...

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Abstract

The invention discloses an ultra wide band millimeter wave plane spiral circularly polarized antenna array. The antenna array adopts a multi-layer PCB vertical arrangement structure and comprises a first metal layer, a first dielectric layer, a first bonding layer, a second dielectric layer, a second bonding layer, a second metal layer, a third dielectric layer and a third metal layer. Each of the plurality of planar spiral circularly polarized antenna units located on the first metal layer comprises a bow tie dipole and two spiral metal arms; the width of the spiral metal arm is gradually increased; a coupling gap is etched in the second metal layer. And the third metal layer is a power distribution feed network based on a microstrip line structure, and feeds the planar spiral circularly polarized antenna in a coupling manner through the coupling slot. By introducing a novel planar spiral structure and a coupling feeding mode, the impedance bandwidth and the axial ratio bandwidth of the antenna are improved.

Description

technical field [0001] The invention belongs to the technical field of antennas, and relates to an ultra-wideband millimeter wave planar spiral circularly polarized antenna array, which can be applied to the fields of mobile communication, satellite communication, and the like. Background technique [0002] In recent years, driven by various practical and potential applications, millimeter wave communication technology has attracted much attention, such as 5G millimeter wave communication, automotive radar, millimeter wave satellite communication and other applications. As an important part of the communication system, the antenna is also the focus of attention. At the same time, international scholars also put forward new challenges to the millimeter wave communication system, namely faster transmission rate, lower network delay, higher network stability, lower power consumption and larger network capacity. In order to realize high-speed transmission in millimeter-wave com...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q21/00H01Q13/08H01Q1/50H01Q1/36
CPCH01Q1/38H01Q21/00H01Q13/08H01Q1/50H01Q1/36Y02D30/70
Inventor 范奎奎李英明谭青权罗国清
Owner HANGZHOU DIANZI UNIV
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