Design method of F-P cavity-like metamaterial microstrip antenna applied to wireless power transmission
A technology of microstrip antenna and wireless power transmission, which is applied in the fields of antenna, design optimization/simulation, and special data processing applications, etc. It can solve the problems of antenna directivity and low gain, and achieve the goals of increased gain, suppressed power density, and improved directivity Effect
Active Publication Date: 2021-08-06
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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[0004] The purpose of the present invention is to solve the problem of low directivity and gain of the antenna designed by the existing antenna design method, and propose a design method of a F-P cavity metamaterial microstrip antenna applied to wireless power transmission
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[0027] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0028] Before describing the specific embodiments of the present invention, in order to make the scheme of the present invention more clear and complete, at first the abbreviations and key term definitions that appear in the present invention are explained:
[0029] F-P-like cavity: the full name is Fabry-Pérot cavity (Fabry–Pérot cavity), also known as plane-parallel cavity (resonator), which is a kind of optical cavity, consisting of two parallel Composed of flat mirrors, it is often used in semiconductor lasers.
[0030] Such as figure 1 As shown, the present invention provides a kind of F-P cavity metamaterial microstrip antenna design method applied to wireless power transmission, comprising the following steps:
[0031] S1: Construction of a resonant cavity antenna loaded with metamaterials;
[0032] S2: Using the scattering parameter extraction...
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The invention discloses a design method of an F-P cavity-like metamaterial microstrip antenna applied to wireless power transmission. The design method comprises the following steps: S1, constructing a resonant cavity antenna loaded with a metamaterial; S2, calculating an S parameter of the metamaterial by using a scattering parameter extraction method; S3, observing the resonant cavity antenna based on the S parameter of the metamaterial to obtain a qualified resonant cavity antenna; and S4, testing the S parameter of the qualified resonant cavity antenna by using the vector network analyzer to obtain the return loss of the resonant cavity antenna, and completing the design of the microstrip antenna. After the microstrip patch antenna is loaded with the metamaterial, the directivity of the antenna is improved, the gain is improved, and for directional transmission, the reverse power density of the antenna is restrained and converted into the positive power density.
Description
technical field [0001] The invention belongs to the technical field of antenna design, and in particular relates to a method for designing a microstrip antenna of a similar F-P cavity metamaterial used in wireless power transmission. Background technique [0002] Wireless power transmission system has been favored by many researchers in recent years, and has also achieved great development. The current wireless power transmission system has low transmission efficiency and short transmission distance. In recent years, metamaterials have been widely used in the design of new antennas. Researchers have found that metamaterials can regulate the amplitude of electromagnetic waves, and the phase can control the characteristics of the emission direction of electromagnetic waves. Therefore, by integrating metamaterials in the antenna, the performance indicators such as gain and directivity of the antenna can be improved, and their geometric size can be greatly reduced without sacri...
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Login to View More IPC IPC(8): H01Q13/08G06F30/20
CPCH01Q13/08G06F30/20Y02E60/00
Inventor 李晓宁方俊洋张紫东周伟李祥泽申世军刘洋宫大为代小林叶小龙
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA