Abstract: A method and an apparatus for performing wireless connection control are provided. For example, the method can be applied to a first electronic device, and the method may include the steps of: adding specific information into at least one packet while establishing a wireless connection between the first electronic device and a second electronic device, where the specific information indicates a channel that the first electronic device is working on; transmitting the at least one packet carrying the specific information to the second electronic device; and performing handshaking to complete the establishment of the wireless connection with respect to the second electronic device. In another example, the method can be applied to the second electronic device, and the method may include the steps of: receiving from the first electronic device the at least one packet carrying the specific information; and performing handshaking to complete the establishment of the wireless connection.

Abstract: A radar wave camouflage structure is disclosed. The radar wave camouflage structure comprises a substrate; a first layer on the substrate, comprising a first polymer matrix; magnetic nanoparticles dispersed in the first polymer matrix, wherein the magnetic nanoparticles comprise a mixture of Fe3O4, Fe3O4-4C carbide, Fe3O4—Ni composite and Fe2O3; a second layer on the first layer, comprising a second polymer matrix; and carbon black dispersed in the second polymer matrix.

Abstract: A radar wave camouflage structure is disclosed. The radar wave camouflage structure comprises a substrate; a first layer on the substrate, comprising a first polymer matrix; magnetic nanoparticles dispersed in the first polymer matrix, wherein the magnetic nanoparticles comprise a mixture of Fe3O4, Fe3O4—4C carbide, Fe3O4—Ni composite and Fe2O3; a second layer on the first layer, comprising a second polymer matrix; and carbon black dispersed in the second polymer matrix.