An Optimal Method for Banded Carrier Antennas Based on Region Decomposition of Higher Order Moments

Abstract

The present invention proposes a tape carrier antenna optimization method based on higher-order moment method region decomposition, in order to realize simulation and optimization of metallic or dielectric metal mixed tape carrier antenna, and improve optimization efficiency. The method comprises the steps of: obtaining an initial value of an antenna design parameter; splitting a tape carrier antenna model region and constructing a calculation model; calculating an electromagnetic initial simulation result of the tape carrier antenna model; setting a tape carrier antenna optimization objectiveand an optimization range of the design parameter, and initializing optimization algorithm parameters; and optimizing the tape carrier antenna design parameter. According to the method provided by the present invention, by using the high-order moment method region decomposition method, the technical problems that only the metallic tape carrier antenna can be simulated and optimized in the prior art, and the optimization efficiency is low are solved, the functions of simulation and optimization to the metallic or dielectric metal mixed tape carrier antenna are realized, and the optimization efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic simulation, and in particular relates to an optimization method for an antenna with a carrier based on the domain decomposition of a high-order moment method, which can be used for optimizing an antenna with a carrier with an electrically large-scale complex material and structure. Background technique [0002] In the antenna system with a carrier, the carrier is located in the near-field area of ​​the antenna, which will affect the performance of the antenna. The influence of the carrier on the antenna mainly comes from the following aspects: the coupling between the carrier surface and the antenna unit; the incident wave in the carrier Surface waves generated on the wall; secondary waves, reflected waves, etc. generated by uneven surface of the carrier. These will change the antenna's differential beam null depth, beam width, side lobes, cross-polarization ratio, etc., resulting in reduc...

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Problems solved by technology

However, since this method uses the integral equation method, there is still the problem of large amount of electromagnetic calculation and long time in the simulation analysis of the sub-area, resulting in low optimization efficiency; and because the integral equation area decomposition method used in this method can only perform electromagnetic Solving, it is difficult to optimize for carriers or antennas containing dielectrics, such as dielectric radome or dielectric microstrip antenna

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