Electromagnetically shielded protection design for security camera lenses

In recent years, electromagnetic interference has become a severe problem for electronic and electric devices design. That has led to an increase in demand for electromagnetic protection. However, there still exists a lot of devices sensitive to electromagnetic field effect, and one of them is security camera representing a crucial factor in the security area. The paper deals with the design of electromagnetically shielding grid for security cameras lenses. The basis of the experiment is the CST Microwave Studio simulation tool used to obtain the theoretical shielding effectiveness results which are subsequently verified by practical measurements using coaxial lines. © 2018 IEEE.Ministry of Education, Youth and Sports of the Czech Republic within the framework of the National Sustainable Development Programme [LO1303, MSMT-7778/2014]; European Regional Development Fund under the CEBIA-Tech project [CZ.1.05/2.1.00/03.0089]; Ministry of the Interior of the Czech Republic; Internal Grant Agency of Tomas Bata Universit