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High-gain yagi antenna based on dielectric resonator high-order mode and metamaterial

A dielectric resonator, Yagi antenna technology, applied in antennas, devices that make antennas work in different frequency bands at the same time, radiating element structures and other directions, can solve problems such as ohmic loss

Active Publication Date: 2020-01-24
NANTONG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] As far as we know, the drive units of many end-fire antennas are made of metal, which will inevitably lead to ohmic loss. As the frequency continues to increase, this problem will become more prominent

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  • High-gain yagi antenna based on dielectric resonator high-order mode and metamaterial
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  • High-gain yagi antenna based on dielectric resonator high-order mode and metamaterial

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0021] see figure 1 , figure 2 It is a schematic diagram of a high-gain Yagi antenna based on a dielectric resonator high-order mode and a metamaterial according to an embodiment of the present invention. The antenna of the embodiment of the present invention includes a dielectric substrate 1 , a reflector 3 , a feeding network, a driving unit 2 and a metamaterial 6 . The dielectric substrate 1 is a printed circuit board, figure 2 middle h is the thickness of the microwave dielectric substrate. Such as figure 1 As shown, the reflector 3 is printed on the lower surface of the diel...

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Abstract

The invention relates to a high-gain yagi antenna based on a dielectric resonator high-order mode and a metamaterial. The high-gain yagi antenna comprises a dielectric substrate, a reflector, a feed network, a driving unit and a metamaterial. The driving unit is a rectangular dielectric resonator working in a high-order mode. The meta-material formed by a plurality of mutually parallel long-strip-shaped metal strips is arranged on the upper surface of the dielectric substrate, and the long-strip-shaped metal strips are perpendicular to the driving unit. The feed network is a pair of feed micro-strip lines transitioned from a differential micro-strip line to a coplanar micro-strip line, and excites the dielectric resonator driving unit. Because of the application of the high-order mode TE3delta1 and the loading of the metamaterial, the antenna gain can reach 10.6dBi. The antenna gain can be improved by 2.3dBi by loading the metamaterial. The actual measurement result is well matched with the simulation result.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a high-gain Yagi antenna based on a dielectric resonator high-order mode and metamaterials. Background technique [0002] With the rapid development of wireless communication systems, the design of high-gain antennas for high-data-rate wireless communication systems such as cellular base stations, point-to-point, and long-distance communications has attracted more and more attention. For azimuth beam switching systems, endfire antennas, such as Vivaldi and Yagi antennas, are considered to be the most suitable antenna type because their largest radiation beam is along the axis of the antenna structure. However, Vivaldi antennas have disadvantages such as large antenna size and high cross-polarization, which are limited in practical applications. Therefore, the Yagi antenna can be used as a suitable type of antenna, and a series of research work has been carried out...

Claims

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Application Information

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IPC IPC(8): H01Q19/30H01Q19/10H01Q15/00H01Q5/48H01Q1/38
CPCH01Q1/38H01Q5/48H01Q15/0086H01Q19/10H01Q19/30
Inventor 陈建新杨玲玲柯颜慧
Owner NANTONG UNIVERSITY
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