A microelectronic module for altering the electromagnetic signature of a surface. The microelectronic module includes at least one voltage converter for converting a first voltage provided into a higher, lower or identical second voltage. Furthermore, the microelectronic module includes at least one actuator. The actuator includes at least one generator for generating an electrical plasma from the second voltage provided by the voltage converter. At least the voltage converter and the actuator are arranged on a thin-layered planar substrate. The electrical plasma generated by the actuator interacts with an electromagnetic radiation impinging on the surface, as a result of which the electromagnetic signature is altered.

A radar-absorbing fiber-reinforced structure includes a fiber composite discharging part. The fiber composite discharging part includes a first electrode part and a second electrode part, which are spaced apart from each other by a dielectric layer and receive different voltages. The fiber composite discharging part is configured to discharge plasma in response to a voltage difference thereby changing a reflected wave or transmitted wave of a radar incident on the radar-absorbing fiber-reinforced structure to reduce reflectivity of the radar. At least one of the first electrode part and the second electrode part include a conductive fiber having a tensile strength equal to or more than 0.5 GPa.

A wearable cold plasma system includes a wearable cold plasma applicator configured to couple to a surface of a user wearing the wearable cold plasma applicator and configured to generate a cold plasma. The wearable cold plasma applicator is in the form of a cuff having one or more electrodes configured to generate the cold plasma within a cavity of the cuff. The wearable cold plasma system also includes a controller coupled to the wearable cold plasma applicator, and the controller is configured to produce an electrical signal that forms the cold plasma with the wearable cold plasma applicator.

Modulated power supply includes a first power supply and a second power supply. One from among the first power supply and second power supply supplies a high voltage at a frequency to one electrode of a pair of electrodes of a dielectric barrier discharge (DBD) plasma reactor. The other from among the first power supply and second power supply supplies a high voltage at another, different frequency to the other electrode of the pair of electrodes of the DBD plasma reactor.

A system including a wearable cold plasma system, including a wearable cold plasma applicator configured to couple to and deliver a cold plasma to a surface of a user wearing the wearable cold plasma device.

A plurality of non-thermal plasma emitters is disposed on a rigid or flexible substrate. The rigid substrate enables the device to be pre-formed in any shape and the flexible substrate enables the device to conform to any surface topography at the time of treatment. The substrate is a dielectric material and in a preferred embodiment is made of thin FR-4. Each of the plasma emitters has a drive electrode on one side of the substrate and a ground electrode on the opposing side of the substrate. In the preferred embodiment both electrodes are centered over a through-hole in the substrate. A conductive drive track is connected to each drive electrode and a conductive ground track is connected to each ground electrode. A drive terminal is connected to the drive track and a ground terminal is connected to the ground track.

Solid state flow control devices, solid state heating sources, and plasma actuators are provided. A plasma actuator can include at least one powered electrode separated from at least one grounded electrode by a dielectric material. The dielectric material can be a ferroelectric material or a silica aerogel. Solid state flow control devices and solid state heating sources can include at least one such plasma actuator.

In the present disclosure, in a high-voltage side electrode component, the electrode main dielectric film is provided on the lower surface of the electrode conductive film, and the electrode additional dielectric film is disposed below the electrode main dielectric film at an upper main/additional inter-dielectric distance. The electrode main dielectric film includes the whole electrode conductive film in a plan view, and has a formation area larger than the electrode conductive film. The electrode additional dielectric film includes the electrode conductive film in a plan view and has a formation area slightly larger than the electrode conductive film and smaller than the electrode main dielectric film. The ground side electrode component has the same features as the above-mentioned features of the high-voltage side electrode component.

This disclosure relates to a plasma generator including a porous ceramic dielectric. More specifically, this disclosure relates to a plasma generator for air purification capable of effectively generating ozone for removing bacteria, viruses, etc., and minimizing pressure loss while increasing air purification capacity by including a porous ceramic dielectric coated with an antibacterial material.

A fabric dielectric barrier discharge (DBD) device, a textile material comprising interconnected insulated conductive fibers can be used to generate a cold homogenous plasma by forming a discharge path from a conductive core of a first fiber, to a dielectric layer surrounding the conductive core, through an air gap towards, e.g., a second fiber or human skin. When the plasma that lights in and around the air gap comes into contact with a contaminated surface (containing, e.g., bacteria and/or viruses), it induces reactive species to form on the contaminated surface, and the reactive species are then allowed to kill the bacteria and/or viruses.