Design of HEMP Protection for a Data Link Equipment
This paper takes a data link communication device as the research object,analyzes the characteristics of high altitude nuclear electromagnetic pulse(HEMP),and carries out theoretical calculation,and uses electromagnetic simulation software FEKO to build the antenna model of com-munication equipment,and focuses on analyzing the frequency domain and time domain response of communication equipment antenna under the environment of HEMP.The simulation results show that the HEMP has a great impact on the wireless communication equipment below 100MHz,and the HEMP will cause serious damage to the equipment after coupling from the antenna into the RF transceiver.In order to reduce the damage of the equipment caused by the HEMP,the external an-tenna and the equipment inside the cabin are protected on the basis of theoretical analysis and simu-lation.On the basis of theoretical analysis and simulation,a HEMP simulator is used to carry out tests.The test results show that a data link device which increases the protection of HEMP can meet the environmental requirements of HEMP.
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