Broadband electromagnetic simulation method using efficient adaptive frequency scanning

A technology of frequency scanning and electromagnetic simulation, applied in design optimization/simulation, special data processing applications, complex mathematical operations, etc., can solve problems such as long time consumption, achieve faster calculation speed, faster simulation speed, and higher accuracy Effect

Pending Publication Date: 2022-03-04
HANGZHOU DIANZI UNIV
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  • Abstract
  • Description
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Problems solved by technology

However, for a rapidly changing frequency response, the error threshold should be set to a very small value, then the number of frequency points calculated by the original adaptive frequency scan may still be correspondingly very large, and the time consumed will be longer

Method used

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  • Broadband electromagnetic simulation method using efficient adaptive frequency scanning
  • Broadband electromagnetic simulation method using efficient adaptive frequency scanning
  • Broadband electromagnetic simulation method using efficient adaptive frequency scanning

Examples

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Embodiment Construction

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0021] like figure 1 An efficient adaptive frequency-sweeping broadband electromagnetic simulation method employs a rational function approximation to fit the measured or calculated frequency-domain response, which is achieved by a scaling procedure replacing a set of starting poles with a modified set of poles.

[0022] The inventive method comprises the following steps:

[0023] Step (1), the antenna is considered to be in the incident field (E inc ,H inc ) under the irradiation of an ideal conductor, the conductor is located in the electromagnetic parameters (ε (e) ,μ (e) ) in the medium space; the electric field and magnetic field in the outer region of the conductor are E e 、H e , the electric field and magnetic field inside the conductor are both 0; ε is the permittivity, μ is the magnetic permeability;

[0024] Step (2), according to the frequency range...

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Abstract

The invention discloses a broadband electromagnetic simulation method using efficient adaptive frequency scanning. According to the method, frequency response convergence judgment is carried out by utilizing an error formula, so that appropriate frequency sampling points can be obtained, and compared with other methods, the required sampling points are reduced, and the simulation speed is increased. According to the method, a nonlinear problem is converted into two linear problems, accurate values of poles and residues are calculated through iteration, a linear equation is solved, an accurate frequency response fitting value is obtained, the calculation speed is increased, and the accuracy is improved.

Description

technical field [0001] The invention belongs to the field of electromagnetic field numerical calculation, in particular to a broadband electromagnetic simulation method using high-efficiency self-adaptive frequency scanning. Background technique [0002] Full-wave simulation of electromagnetic problems is one of the most challenging problems in modern computing techniques. The method of moments based on the integral equation is widely used as an effective solution method. For many practical applications, electromagnetic problems need to be resolved in a wide frequency band. However, for a frequency domain solver, many frequency points need to be computed to describe the frequency response, especially for problems where the frequency response changes rapidly over a wide frequency band. [0003] To overcome this problem, many scanning techniques have been developed, such as Adaptive Multipoint (AMP) method, Asymptotic Waveform Evaluation (AWE). One of the most popular metho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F17/11G06F17/16
CPCG06F30/20G06F17/11G06F17/16
Inventor 赵智英赵鹏陈世昌袁博王高峰
Owner HANGZHOU DIANZI UNIV
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