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The enormous use of digital technology based on acoustic system and electromagnetic waves enhances the noise level in environment imposes challenging issues for visual, acoustic, infrared, microwave communication technology. Addressing all these issues stealth technology developed electro-acoustic stealth material based on carbon rich material which can solve both acoustic as well as electromagnetic noise called Electro Magnetic Interference (EMI). The use of synthetic carbon rich ceramic material though able to solve such problem but its sophisticated synthesis, cost and selection of material imposes many practical problems for which it needs some alternative material such as rice straw, sugar cane bagasse, coconut shell, date palm leaf etc. enriched with organic materials that can be potentially applied for fabrication of electro-acoustic stealth material. The present work encloses the synthesis of electro-acoustic stealth material fabricated from date palm fibre composites prepared by sonicated blended solvents. The signature of sound absorption coefficient is found to be 0.6-0.85 which is satisfactory and used to reduce the output noise of vehicles. The reflectivity and absorption characteristics of the synthesized samples having good absorbing capacity of microwave in the frequency range 8.2 GHz to 12.4GHz. The epoxy blended composite of date palm fibre possesses the maximum reflection loss -20.0dB at 10GHz. The sound absorption coefficient and dielectric loss factor of synthesized material proficiently demand its importance in stealth technology for application in unmanned air vehicles (UAV) and microwave absorbing material (MAM) to reduce the noise immunity due to electro magnetic interference. Keywords: Ultrasonic waves, blended chemicals, date palm fibre, sound absorption coefficient, dielectric loss, microwave absorbing materials.
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