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High-gain wideband stereoscopic slot Yagi antenna

A Yagi antenna, three-dimensional technology, applied in the field of communication, can solve the problems of limited antenna application, low gain, and narrow antenna working bandwidth, and achieve the effect of overcoming the complexity of the feeding structure, easy feeding, and high gain

Inactive Publication Date: 2015-06-03
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of this method is that the working bandwidth of the antenna is narrow, which limits the further application of the antenna in the field of communication.
However, the disadvantage of this method is that the gain is low

Method used

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  • High-gain wideband stereoscopic slot Yagi antenna
  • High-gain wideband stereoscopic slot Yagi antenna
  • High-gain wideband stereoscopic slot Yagi antenna

Examples

Experimental program
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Embodiment Construction

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0022] figure 1 It is a structural schematic diagram of the present invention, figure 2 is a top view of the dielectric material plate of the present invention, image 3 is a top view of the guiding unit 1 of the present invention, Figure 4 is a top view of the guiding unit 2 of the present invention, Figure 5 is a top view of the reflection unit of the present invention, Figure 6 is the simulation figure of the return loss curve of the present invention, Figure 7 is the E plane pattern when the antenna of the present invention works at 4.22GHz, Figure 8 It is the H plane pattern when the antenna of the present invention works at 4.22GHz.

[0023] Refer to attached figure 1 , the present invention includes a radiation unit, a directing unit, a feeding unit and a reflecting unit. The radiating unit 3, the guiding unit, the feeding unit 5 and the ...

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PUM

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Abstract

A high-gain wideband stereoscopic slot Yagi antenna comprises a radiating unit, a leading unit, a feeding unit and a reflecting unit which are arranged lengthways and adopt a three-dimensional stereoscopic structure, wherein the radiating unit is a metal coating printed on the surface of a dielectric material plate and provided with slots; the radiating unit and the leading unit are connected through four symmetric metal cylinders; the feeding unit comprises a rectangular microstrip line and a fan-shaped microstrip line connected with the rectangular microstrip line and is printed at the bottom layer of the dielectric material plate; the reflecting unit is a rectangular metal patch with slots, and the reflecting unit and the radiating unit are connected through four plastic cylinders. The high-gain wideband stereoscopic slot Yagi antenna has the characteristics of wide band and high gain and can be used for wide-band end-fire receiving and emitting.

Description

technical field [0001] The invention belongs to the technical field of communication, and further relates to a high-gain broadband three-dimensional slot Yagi antenna in the technical field of electromagnetic fields and microwaves. The invention has higher gain, works in a wider frequency band, and is suitable for end-fire receiving and transmitting in a wider frequency band. Background technique [0002] As a radiator of a wireless communication system, the characteristics of the antenna play an important role in the overall function of the system. Since the operating frequency, gain, and front-to-back ratio of various antennas used in mobile communications are not much different, the radiation form of the antenna becomes an important factor for the system to select the antenna type. End-fire antennas are widely used in radar systems and vehicle systems because of their good directivity and strong adjustable radiation range. The Yagi antenna is a widely used end-fire ante...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q1/50H01Q19/02H01Q19/10H01Q13/00
Inventor 刘英刘虎魏明贾永涛龚书喜徐云学
Owner XIDIAN UNIV
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