An electromagnetic (EM) probe for monitoring at least one biological tissue. The EM probe comprises a spiral antenna conductor (not shown) and an EM radiation absorbing layer (92) mounted along the antenna. The EM radiation absorbing layer has a plurality of substantially concentric frame shaped regions (93A-C) corresponding to portions of said spiral antenna having equal surface of antenna conductor, any of said plurality of concentric frame shaped regions has an EM radiation absorption coefficient different than any other of said neighboring concentric frame shaped regions.

An electromagnetic (EM) probe for monitoring at least one biological tissue. The EM probe comprises a spiral antenna conductor (not shown) and an EM radiation absorbing layer (92) mounted along the antenna. The EM radiation absorbing layer has a plurality of substantially concentric frame shaped regions (93A-C) corresponding to portions of said spiral antenna having equal surface of antenna conductor, any of said plurality of concentric frame shaped regions has an EM radiation absorption coefficient different than any other of said neighboring concentric frame shaped regions.

A radar radiation redirecting inhibition layer for reducing radar cross section (RCS) of radar radiation redirection pavement marking tapes, pavement marking cover tapes incorporating such layer and methods of use are described.

A radar radiation redirecting inhibition layer for reducing radar cross section (RCS) of radar radiation redirection pavement marking tapes, pavement marking cover tapes incorporating such layer and methods of use are described.

A radio wave absorber with which it is possible to obtain both excellent radio wave absorption characteristics in a high-frequency band and excellent heat dissipation characteristics, and a radio wave absorber formation paste suitable for use in producing the radio wave absorber. The radio wave absorber includes a composite layer made of a radio wave absorption material and a thermally conductive material, the radio wave absorption material includes one or more types of an ε-Fe.sub.2O.sub.3 crystal; and a crystal in which the crystal and the space group are identical to those of ε-Fe.sub.2O.sub.3 and a part of an Fe site of the ε-Fe.sub.2O.sub.3 is substituted with an element M other than Fe, and that is represented by the formula ε-M.sub.xFe.sub.2-xO.sub.3 in which x is greater than 0 and less than 2.

A radio wave absorber with which it is possible to obtain both excellent radio wave absorption characteristics in a high-frequency band and excellent heat dissipation characteristics, and a radio wave absorber formation paste suitable for use in producing the radio wave absorber. The radio wave absorber includes a composite layer made of a radio wave absorption material and a thermally conductive material, the radio wave absorption material includes one or more types of an ε-Fe.sub.2O.sub.3 crystal; and a crystal in which the crystal and the space group are identical to those of ε-Fe.sub.2O.sub.3 and a part of an Fe site of the ε-Fe.sub.2O.sub.3 is substituted with an element M other than Fe, and that is represented by the formula ε-M.sub.xFe.sub.2-xO.sub.3 in which x is greater than 0 and less than 2.

A thin electromagnetic wave attenuation film capable of attenuating electromagnetic waves having frequencies in millimeter-wave bands, comprising an electromagnetic wave attenuation film including a dielectric substrate having a front surface and a rear surface, a thin-film conductive layer disposed on the front surface, and a planar inductor or a lamination layer disposed on the rear surface, wherein the thin-film conductive layer includes a plurality of metal plates, and values of natural logarithms obtained by normalizing a thickness T of the metal plates by a skin depth d thereof are in predetermined numerical ranges within a predetermined frequency range. The electromagnetic wave attenuation film is used in the predetermined frequency range. A top coat layer may be provided on the thin-film conductive layer.

Multispectral camouflage systems, apparatuses, and methods describes herein may include an assembled array of one or more discrete camouflage units, wherein each of the one or more discrete camouflage units includes a composite material having at least one predetermined structurally related property and at least one predetermined camouflage-related property, and wherein each of the one or more discrete camouflage units is joined to one or more neighboring unit to provide a laterally positioned camouflage cover configured to conceal an object from visible detection, infrared detection, thermal imaging, and radar detection.

Techniques for improved wireless throughput via beam reflection reduction are provided. A wireless communication device can include a device enclosure that at least partially encompasses an interior of the wireless communication device, the device enclosure comprising a cover assembly that defines a surface of the wireless communication device, wherein the cover assembly is composed of at least a first material; an antenna embedded within the interior of the wireless communication device substantially adjacent to the cover assembly, wherein the antenna is situated at a position relative to the cover assembly; and an aperture formed into the cover assembly at the position, wherein the aperture is not composed of the first material. Alternatively, the aperture can be coated with a non-reflective material that is distinct from the first material.

A radiation noise reduction component which includes a substrate and a loop antenna mounted on the substrate, the loop antenna being positioned proximate to an energy radiating component of an information handling system, the loop antenna compensating for the radiated energy generated by the energy radiating component.