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Indexed by:期刊论文

Date of Publication:2022-06-29

Journal:大连理工大学学报

Affiliation of Author(s):运载工程与力学学部

Issue:1

Page Number:39-44

ISSN No.:1000-8608

Abstract:Radome is designed to protect the radar antennas from the external environment. However, radome is interfering with the electromagnetic radiation of radar antenna, which may result in significant performance degradation to radar antenna systems. Therefore, electric performance of radome-enclosed antenna has to be precisely analyzed and artificially predicted. In practice, some methods widely used are compared in detail with other methods, such as the ray tracing (RT) method and the plane wave spectrum-surface integration (PWS-SI) method. It can be concluded by comparison that the PWS-SI method has more outstanding advantages in analysis accuracy and computation time than other methods. Meanwhile, it is flexible to handle the effect of radome wall precisely. Then, the PWS-SI method is applied to numerical analysis of far-field sum pattern, boresight error and boresight error slope of a smaller antenna-radome system. The calculation results coincide with the measured results. The PWS-SI method is accurate and effective to analyze the electric performance of smaller antenna-radome system.

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