Leaky wave antenna and beamforming method based on leaky wave antenna

A leaky wave antenna and leakage technology, applied in leaky waveguide antennas, circuits, etc., can solve the problems of difficult implementation and complex beamforming algorithm, and achieve the effect of simple feeding, simple design, and clear principle

Active Publication Date: 2018-11-09
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a leaky-wave antenna and a beamforming method based on the leaky-wave antenna, which solves the problems of complex and difficult implementation of the existing beamforming algorithm, and at the same time expands the application occasions and scope of the leaky-wave antenna

Method used

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  • Leaky wave antenna and beamforming method based on leaky wave antenna
  • Leaky wave antenna and beamforming method based on leaky wave antenna
  • Leaky wave antenna and beamforming method based on leaky wave antenna

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Embodiment 1

[0041] like figure 1 and figure 2 As shown, based on the rectangular waveguide wide lobe leaky wave antenna of the present invention, the upper surface of the leaky rectangular waveguide is provided with the following image 3 The combined sine function shape slot shown; the leakage rectangular waveguide width and height are a=110mm and b=50mm respectively, the waveguide length is L=1000mm, and the operating frequency is f=2.4GHz.

[0042] like image 3 As shown, the combined sine function shape slots are distributed along the y-direction of the central axis of the leaky rectangular waveguide. The combined slot can be made of 10 types such as Figure 4 The single-period sine function-shaped slits shown are superimposed according to different combinations of weighting coefficients. Period P of 10 single-period sinusoidal function-shaped slits n and the gap width W as a weighting factor n , and the corresponding pointing angle θ of the -1st space harmonic -1 As shown in ...

Embodiment 2

[0052] like figure 1 and Figure 7 As shown, based on the substrate integrated waveguide wide-lobe leaky wave antenna of the present invention, the upper surface of the leaky rectangular waveguide is provided with the following Figure 8 The combined sine function shape slot shown; the thickness of the substrate integrated waveguide dielectric layer h=1.524mm, the dielectric constant ε r =3.0, the diameter of the metal through hole is d = 1.0mm, the center distance between adjacent metal holes on the same side is s = 1.7mm, the width of the substrate integrated waveguide is w = 22.15mm, and the length L = 200mm. The operating frequency is f=5.8GHz.

[0053] like Figure 8 As shown, the combined sine function shape slot is divided along the y direction of the central axis of the leaky rectangular waveguide, and the combined slot is composed of 10 types such as Figure 9 The single-period sine function-shaped slits shown are superimposed according to different combinations o...

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Abstract

The invention discloses a leaky-wave antenna and a beam forming method based on the same. The shape of the leakage gap of the leaky-wave antenna adopts a composite structure including different periodic structures corresponding to different radiation directions. The leaky-wave antenna and the beam forming method based on the same have clear principle and simple design, so that the design and optimization of beam forming can be promoted.

Description

technical field [0001] The present invention relates to the technical field of electronics and communication. More specifically, it relates to a leaky wave antenna and a beamforming method based on the leaky wave antenna. Background technique [0002] In low-energy wireless communication and some specific applications, it is necessary to artificially plan the area and range of the radiated energy of the antenna, such as strong radiation in some directions of the antenna and weak radiation in other directions, or It is desirable to have stronger radiation in these larger angle ranges, etc., which requires the desired beamforming design of the radiation pattern of the antenna. Most of the existing antenna beamforming methods are based on the antenna array theory and adopt a more complex weighted array feeding method, while the beamforming method of leaky wave antennas with only one feeding port is seldom studied. [0003] Therefore, it is necessary to provide a leaky wave an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q13/22
CPCH01Q13/22
Inventor 王均宏耿云杰
Owner BEIJING JIAOTONG UNIV
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