A design technology for helical antenna based on dielectric ceramic loading and the application in financial field

This article have proposed a design method for dielectric ceramic loaded helical antennas based on the limitations of traditional metal helical antennas in terms of size and operating bandwidth. By introducing a cylindrical dielectric structure, the electromagnetic characteristics of the helical antenna could be effectively changed, achieving precise control over the radiation mode. Firstly, this article provides a detailed analysis of the geometric and electromagnetic properties of helical antennas loaded with dielectric materials, exploring the impact of dielectric loading on antenna performance. Secondly, through numerical simulation and experimental verification, the advantages of dielectric loaded helical antennas in achieving specific radiation modes were demonstrated. The results show that compared with traditional dielectric antennas, the new antenna introduced in this paper has higher radiation efficiency and wider radiation bandwidth, providing new perspectives and ideas for antenna design.