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Ternary microstrip dipole antenna based on PEG and Yagi antenna structure

A dipole antenna, Yagi antenna technology, applied in the connection of the antenna grounding switch structure, the intermediate position feeding between the antenna terminals, the antenna and other directions, can solve the problems of reducing the original design performance of the system, and achieve the purpose of suppressing coupling and correcting bias. shift effect

Inactive Publication Date: 2019-11-12
HOHAI UNIV
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Problems solved by technology

However, since the small assembly space greatly limits the distance between the antenna elements, it will inevitably cause a strong electromagnetic coupling effect between the antenna elements, which will affect the antenna impedance matching, radiation efficiency and antenna diversity. etc. will greatly reduce the original design performance of the system, so it is necessary to study simple and effective multi-antenna system coupling suppression and matching network technology

Method used

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  • Ternary microstrip dipole antenna based on PEG and Yagi antenna structure
  • Ternary microstrip dipole antenna based on PEG and Yagi antenna structure
  • Ternary microstrip dipole antenna based on PEG and Yagi antenna structure

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Embodiment Construction

[0030] The present invention will be further described below. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0031] The invention implements decoupling and matching network design for the three-element dipole tightly coupled array antenna by adding a planar quasi-Yagi antenna structure. According to the traditional Yagi antenna, a Yagi antenna suitable for PCB (Printed Circuit Board, printed circuit board) structure is designed, also called planar quasi-Yagi antenna. The difference between it and the traditional Yagi antenna is that the antenna integrates all structures On a dielectric substrate with a high dielectric constant, for example, the material of the dielectric substrate in the present invention is Rogers430, the dielectric constant of this material is 3.66, the dielectric loss tangent is tanδ=0.004, and the thickness of the dielectric s...

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Abstract

The invention discloses a ternary microstrip dipole antenna based on a PEG and a Yagi antenna structure. By adding a planar quasi-Yagi antenna as a third radiation source to a binary dipole array antenna, and further upward bending the two ends of a radiation excited dipole to reduce the lateral dimension, the ternary microstrip dipole antenna is constituted. In an antenna design process, the dimension of the antenna is continuously adjusted by HFSS simulation so as to achieve wide matching and wide decoupling bandwidth. The ternary microstrip dipole antenna achieves the coupling suppression matching of three ports without using an additional matching circuit, and can provide theoretical guidance for the circuit design of a multi-antenna array decoupling network.

Description

technical field [0001] The invention relates to the technical field of wireless communication multi-antenna transmission, in particular to a three-element microstrip dipole antenna based on PEG and Yagi antenna structures. Background technique [0002] MIMO multi-antenna transmission technology is one of the important means to realize high-speed data transmission within a limited frequency band. New-generation mobile communication systems such as modern 5G, whether for small devices such as base stations or mobile terminals, require a large number of transceiver antennas to be configured on a limited assembly surface. However, since the small assembly space greatly limits the distance between the antenna elements, it will inevitably cause a strong electromagnetic coupling effect between the antenna elements, which will affect the antenna impedance matching, radiation efficiency and antenna diversity. etc. will greatly reduce the original design performance of the system, so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q1/38H01Q1/48H01Q1/50H01Q1/52H01Q9/16H01Q9/30H01Q19/02H01Q19/10H01Q19/30H01Q21/00
CPCH01Q1/36H01Q1/38H01Q1/48H01Q1/50H01Q1/521H01Q9/16H01Q9/30H01Q19/02H01Q19/10H01Q19/30H01Q21/00H01Q21/0075
Inventor 李岳衡刘陕陕李方华谭跃跃居美艳黄平
Owner HOHAI UNIV
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