Modular Combination Filter Housing for Improving Fuze Electromagnetic Compatibility
In the context of proximity fuzes for guided rocket projectiles,due to the limitations of spatial struc-ture and weight,there is no additional space available to set up an independent shielding space to deal with the injection interference of the input power supply.A method for improving the electromagnetic compatibility of the fuze by modular combination filter housing was proposed.This method draws on the concept of modular combi-nation design,fully utilizes the existing mechanical parts of the structure,and achieves the design of the input power supply shielding housing through the ingenious combination of mechanical structures.On this basis,floating ground and filtering designs were adopted to realize the construction of the filter housing for the proxim-ity fuze of the guided rocket projectile.Simulation results show that after the modular combination filter housing was constructed,the maximum value of the electric field strength on the fuze circuit was reduced from 0.244 6 V/m to 0.153 7 V/m,a reduction of 37.16％.At the same time,the location of the maximum electric field strength al-so shifted from the center of the circuit board to the inner wall of the fuze housing.This indicates that the modu-lar combination filter housing for the proximity fuze of the guided rocket projectile has significantly improved the electromagnetic compatibility performance of the fuze.
fuzeguided rocket projectileproximity fuze of guided rocketelectromagnetic compatibility
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