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Wave port modeling and s-parameter calculation method based on cfdtd algorithm, terminal and medium

A parameter calculation and port technology, applied in the field of electromagnetic field simulation, can solve the problems of less discussion of cut-off area calculation, difficult calculation, less discussion of irregular waveguide modeling, etc., to achieve a wide range of applications, accurate calculation results, and meet engineering needs. Effect

Active Publication Date: 2022-08-02
ZWCAD SOFTWARE CO LTD
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  • Application Information

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Problems solved by technology

However, the existing CFDTD-based algorithm in terms of wave port modeling and S-parameter extraction technology is more discussed about the modeling of rectangular waveguides, circular waveguides, and coaxial waveguides with analytical solutions. For the modeling of irregular waveguides There are few discussions. On the other hand, for the extraction of S parameters, the calculation of the waveguide in the propagation area is more discussed, and the calculation of the cut-off area is less discussed. The extraction of S parameters in the cut-off area has computational difficulties.

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  • Wave port modeling and s-parameter calculation method based on cfdtd algorithm, terminal and medium
  • Wave port modeling and s-parameter calculation method based on cfdtd algorithm, terminal and medium
  • Wave port modeling and s-parameter calculation method based on cfdtd algorithm, terminal and medium

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Embodiment Construction

[0027] The embodiments of the present application are described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, the various embodiments of the present disclosure generally described and shown in the accompanying drawings herein can be combined with each other under the premise of not conflicting, and the structural components or functional modules therein can be arranged in various configurations and design. Therefore, the following detailed description of the embodiments of the disclosure provided in the accompanying dr...

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Abstract

The present invention provides a wave port modeling and S-parameter calculation method based on a CFDTD algorithm, a terminal and a medium. The method includes: S101: discretizing the Yee grid on the calculation area, and calculating the iteration coefficient of the CFDTD algorithm on the grid; S102 : Extend the applied wave port excitation surface into a rectangular area, obtain the iteration coefficient after the rectangular area extends the preset grid number along the propagation direction, and use the iteration coefficient to construct a virtual area to extract the mode voltage and establish the relationship between the virtual area and the real area. Contact; S103: Extract the mode voltage in the virtual region and calculate the S-parameters of the wave port. The invention realizes the wave port modeling of the irregular section and the S parameter calculation of the wave port excitation, the calculation result is accurate, the application range is wide, and the actual engineering requirements are met.

Description

technical field [0001] The invention relates to the technical field of electromagnetic field simulation, in particular to a wave port modeling and S parameter calculation method based on a CFDTD algorithm, a terminal and a medium. Background technique [0002] In wireless communication, radio, television, radar, navigation, electronic countermeasures, remote sensing, radio astronomy and other projects, all those who use electromagnetic waves to transmit information rely on antennas to work. Antenna is a kind of converter, which converts the guided wave propagating on the transmission line or waveguide into the electromagnetic field propagating in the unbounded medium (usually free space), or the opposite transformation, so the antenna is used to transmit or receive electromagnetic waves. device of. The waveguide is an important feeding structure of the antenna, and it is of great theoretical and engineering significance to study the electromagnetic field transmission charac...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/23
CPCG06F30/23Y02E60/00
Inventor 杨琦李会江张军飞
Owner ZWCAD SOFTWARE CO LTD