A Solution Method for Scattering Field of Transmission Line

Abstract

The invention provides a solving method of a scattered field of an electric transmission line, and aims at reducing occupied computing resources of solving, and ensuring computing accuracy at the same time. The method mainly comprises the three steps of 1, expressing induced currents of the electric transmission line into a series form of multiple vector superposition after multiple linear phase functions multiply a coefficient, and dividing an electric transmission line model into multiple extensive area elements according to the characteristics of the linear phase function; 2, adopting physical optics to solve the coefficient, and accordingly obtaining the induced currents; 3, conducting vector summing on scattered fields generated by the induced currents of all area elements to obtain a total scattered field. According to the solving method of the scattered field of the electric transmission line, fast solving can be conducted on the scattered field of the electric transmission line working under a GHz frequency with a large electrical size, occupied memory during computing is reduced, the problem of over-large calculated amount during electric transmission line solving is solved, and fast solving of the scattered field of the electric transmission line in engineering application is achieved.

Description

technical field [0001] The invention discloses a method for solving the scattering field of transmission lines, which belongs to the field of electromagnetic compatibility between transmission lines and radio stations. Background technique [0002] With the rapid development of current science and technology, a large number of radio stations with strict requirements on the surrounding electromagnetic environment (such as stations for analog TV and digital TV broadcasting, military aviation radar, etc.) It has become a research hotspot to solve the scattering field problem of these stations from high-voltage transmission lines. In the medium-wave frequency band, IEEE clearly proposes to use the method of moments to numerically solve the scattering field of transmission lines. However, with the increase of calculation frequency, domestic and foreign studies have found that when the method of moments is used to discretize the induced current on the surface of the transmission ...

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Problems solved by technology

[0003] The invention provides a method for solving the scattering field of transmission lines, which can solve the scattering field of electric large-scale transmission lines working at GHz frequency, reduce the computer memory occupied during calculation, and solve the problem of excessive calculation caused by too many iron towers of transmission lines For large problems, realize the fast solution of the scattered field of transmission lines in engineering applications

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