Abstract
At present, a large number of high-voltage transmission lines have gradually become a key factor that interferes with the quality of surrounding radio communications. In the study of passive interference of transmission lines, the modeling of iron towers affects the accuracy of calculation results. In order to provide reliable data reference for the research of protective measures and interference suppression methods, aiming at the line model of transmission line tower, taking the tower structure and auxiliary angle-steel as variable factors, this paper studies its influence on the calculation results of passive interference. Three tower models with typical structures and obvious differences are selected, and the models using only the main material and the auxiliary material angle-steel are established respectively. The calculation results of passive interference under different frequency incident waves are compared. The final conclusion shows that with the increase of incident wave frequency, the passive interference caused by the three transmission tower models increases gradually, and the effect of auxiliary angle-steel is more and more obvious.
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