SIW back cavity slot antenna resonant frequency design method

A resonant frequency, slot antenna technology, applied in design optimization/simulation, calculation, data processing applications, etc., can solve the problems of inaccurate prediction accuracy, long calculation time, etc., to reduce the number of times, improve accuracy and efficiency, and reduce accurate simulation. effect of time

Pending Publication Date: 2020-02-04
JIANGSU UNIV OF SCI & TECH
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Problems solved by technology

In the past, people used analytical methods, numerical methods and other methods combined with electromagnetic simulation software to design antenna resonant frequency, which would lead to long calculation time and inaccurate prediction accuracy.

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  • SIW back cavity slot antenna resonant frequency design method
  • SIW back cavity slot antenna resonant frequency design method
  • SIW back cavity slot antenna resonant frequency design method

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Embodiment Construction

[0039] In the past, in the prediction of the resonant frequency of microstrip antennas, most methods such as analytical method and numerical method are combined with electromagnetic simulation software to achieve. These methods will lead to long calculation time and inaccurate prediction accuracy. The invention uses a Gaussian process model based on empirical formulas as prior knowledge to predict the resonant frequency of the SIW cavity-backed slot antenna.

[0040] The method of the present invention combines the Gaussian process with the electromagnetic simulation software, uses the antenna size parameter as the input data, uses HFSS to obtain the precise solution of the antenna, calculates the empirical formula to obtain the prior knowledge, and obtains the difference between the accurate solution and the prior knowledge As output data, a Gaussian process model is established. After the model is established, the resonant frequency of the SIW cavity-backed slot antenna can ...

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Abstract

The invention discloses an SIW back cavity slot antenna resonant frequency design method. According to the invention, a Gaussian process model taking an empirical formula as priori knowledge is combined with simulation software; six related parameters of equivalent length, width, dielectric constant, dielectric substrate thickness and half-wave number of TE waves distributed along a y-axis direction and a z-axis direction of a rectangular resonant cavity of the SIW back cavity slot antenna are used as training input samples; a return loss difference value calculated by simulation software HFSSand an antenna resonant frequency empirical formula is used as a training output sample, a Gaussian process model is established, and the trained Gaussian process can be used for predicting the resonant frequency of the slot antenna. Compared with an electromagnetic simulation software modeling method, the method has the advantages that the calculation time for calling simulation software is shortened, and meanwhile the prediction precision of the resonant frequency of the SIW back cavity slot antenna can be improved.

Description

technical field [0001] The invention relates to a method for designing a resonant frequency of an SIW cavity-backed slot antenna, in particular to a Gaussian process model based on empirical formulas as prior knowledge, and belongs to the technical field of antennas. Background technique [0002] SIW (Substrate Integrated Waveguide) is a new type of dielectric waveguide structure between planar and non-planar structures. Compared with traditional metal waveguides, it has the advantages of small size and easy integration, so it is widely used in antenna design . The microstrip slot antenna has the advantages of simple structure and convenient processing, and is widely used in wireless communication and other fields. The resonant frequency is an important parameter of the microstrip antenna, so the prediction of the resonant frequency has practical significance. In the past, people used methods such as analytical method and numerical method combined with electromagnetic simu...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06Q10/04
CPCG06Q10/04
Inventor 田雨波蒋昱濛解志斌李垣江
Owner JIANGSU UNIV OF SCI & TECH
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