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Single-layer dielectric board fabry-perot antenna fed by coplanar waveguide in millimeter wave band

A coplanar waveguide and dielectric plate technology, applied in slot antennas, circuits, and radiating element structures, etc., can solve problems affecting antenna strength and manufacturing accuracy, and achieve the effect of simple and compact structure, simple antenna fabrication, and antenna matching.

Active Publication Date: 2016-10-19
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional Fabry-Perot antenna is composed of two or more layers of dielectric plates, and there is an air layer in the antenna structure, which affects the strength and manufacturing accuracy of the antenna

Method used

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  • Single-layer dielectric board fabry-perot antenna fed by coplanar waveguide in millimeter wave band
  • Single-layer dielectric board fabry-perot antenna fed by coplanar waveguide in millimeter wave band
  • Single-layer dielectric board fabry-perot antenna fed by coplanar waveguide in millimeter wave band

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] see figure 1 and figure 2 , This high-gain single-layer dielectric plate Fabry-Perot antenna fed by a millimeter-wave coplanar waveguide includes a frequency selective surface of the upper layer, a dielectric substrate (1) of the middle layer and a feeding and radiation structure of the lower layer, and is characterized by: The unit form of the upper frequency selective surface is a hexagonal metal ring (2); the lower feeding and radiation structure includes a coplanar waveguide floor (6), a coplanar waveguide feeder (7), two matching adjustment slots ( 4), two square ring radiation slots (3) and two square metal sheets (5), the coplanar waveguide feeder (7) is located at the central opening of the lower side of the coplanar waveguide floor (6), and the coplanar waveguide feeder (7) ) between the two sides and the floor (6) constitute the matching adjustment gap (4), and the two square ring radiation gaps (3) are located in the middle of the floor (6) and connect the ...

Embodiment 2

[0032] see figure 1 and figure 2 , This embodiment is basically the same as Embodiment 1, and the special features are as follows: the size of the dielectric substrate (1) is 25mm*25mm*3.254mm, the upper and lower layers are metal coatings, and the material is copper.

Embodiment 3

[0034] The single-layer dielectric plate Fabry-Perot antenna fed by the millimeter-wave coplanar waveguide is divided into three layers: upper, middle and lower layers. upper level as figure 1 shown, the frequency selective surface is formed by 9×9 hexagonal metal rings (2) printed on the dielectric plate (1); the lower layer is shown as figure 2 Shown is the feeding and radiation structure, including a coplanar waveguide feed line (7), a coplanar waveguide floor (6), two square radiating slot rings (3), two square metal sheets (5) and a coplanar waveguide Two matching adjustment slots (4) extended out of the feeder; image 3 As shown, the thickness of the dielectric substrate ( 2 ) used in this embodiment is H.

[0035] The antenna has a left-right symmetrical structure, and the coplanar waveguide floor (6), the coplanar waveguide feed line (7) and the matching adjustment slot (4) constitute a coplanar waveguide feeding structure. In the working frequency band, changing t...

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Abstract

The invention relates to a high-gain single-layer dielectric plate Fabry-Perot antenna fed by a coplanar waveguide in a millimeter wave band. It includes a frequency-selective surface in the upper layer, a dielectric substrate in the middle layer, and a feed and radiation structure in the lower layer. The present invention has a gain of 16.3dBi and an impedance bandwidth of 9.5% at a center frequency of 35GHz. In addition, certain improvements have been made on the basis of the traditional Fabry-Perot antenna, so that the antenna only needs one layer of dielectric board, eliminating the need for air Floor. The characteristics of simple power feeding, low profile and stable structure make the invention have great engineering application prospects.

Description

technical field [0001] The invention relates to a single-layer dielectric plate Fabry-Perot (Fabry-Perot, F-P) antenna fed by a millimeter waveband coplanar waveguide. It belongs to the category of antennas in the fields of wireless communication, wireless energy transmission, and wireless sensors in the millimeter wave band. Background technique [0002] With the rapid development of today's wireless technology, the frequency band used by wireless communication, wireless energy transmission and wireless sensors has reached the millimeter wave frequency band to meet the requirements of miniaturization of equipment and high-speed data transmission. As an essential RF front-end in a millimeter-wave system, the millimeter-wave antenna directly affects the overall performance of the system. How to realize the high gain performance of the antenna in the millimeter wave frequency band has become a hot research topic. At present, there are two commonly used schemes to achieve hig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q13/10
Inventor 杨雪霞韩冰聂美娟陆佳骏梅欢
Owner SHANGHAI UNIV