In order to reduce the cost and blindness of antenna design, the application of electromagnetic field similarity principle in the working environment of underwater receiving antenna was studied and verified. The field distribution and electrical parameters of the underwater receiving antenna and its reduced-scale model were calculated and proved to be in accordance with the similarity principle. The simulation analysis of the receiving antenna and its reduced-scale model for receiving the airborne electromagnetic wave signal in the seawater shows that the underwater receiving antennas before and after the scale-down are similar. The simulation is verified by measuring the receiving signal amplitude of the underwater receiving antenna and its reduced-scale model. The results of theoretical derivation and simulation analysis show that the electromagnetic field similarity principle can be applied to the underwater receiving antenna system.
2. Qi, W., Z. Wang, W. Ma, and Y. Yang, "Verification and analysis on similitude principle used in the compact model of a reverberation chamber," Journal of Radio Science, Vol. 26, No. 1, 180-185, 2011.
3. Chen, K., Electromagnetic Field and Electromagnetic Wave, Higher Education Press, Beijing, 2003.
4. Gong, Y., Q. Zhai, and C. Li, "Research on parameter conversion relation between antenna system and its reduced-scale model," Radio Communication Technology, Vol. 42, No. 6, 70-72+94, 2016.
5. Jiao, Y., "Analysis and research of electromagnetic properties of seawater," Naval Electronic Engineering, Vol. 38, No. 8, 176-179, 2018.
6. Jeon, J. Y., H. I. Jo, R. Seo, and K. H. Kwak, "Objective and subjective assessment of sound diffuseness in musical venues via computer simulations and a scale model,", 173, Elsevier Ltd, 2020.
7. Wang, H., "Study on electromagnetic wave propagation across seawater to air interface,", Northwest University of Technology, 2015.
8. Chen, G., "1978 practical salt standard and China standard seawater," Marine Technology, No. 3, 2223, 1982.
9. Lu, W., Antenna Theory and Technology, Xidian University Press, Xi'an, 2004.