Abstract: Disclosed herein is an omni-directional low distortion broadband coaxial horn antenna that supports a wireless bandwidth of 2-12 GHz with an instantaneous bandwidth up to 6 GHz wide within that 2-12 GHz range. These exemplary frequencies represent a single embodiment, but do not limit the range of possible frequencies the antenna can cover based on its design equations and scalability to other frequency ranges. In general, the antenna's dielectric shape is an hourglass cylindrical annulus with a curved conical void. The annular hole in the center of the antenna allows transmission line connection to the conductive surfaces applied to both the conical subtraction from the annulus and to the antenna's base. The present invention is not limited by this embodiment and also includes any embodiment of a cylindrical annulus with a conical void as determined in the manner disclosed herein and having conductive surfaces applied to it for electromagnetic radiation.

Abstract: The disclosed principles provide for an RF front-end design capable of up-converting, down-converting, and conditioning broadband signals for wireless transmission with an instantaneous bandwidth of up to 3.5 GHz within the frequency range of 2-12 GHz. In addition, embodiments of the disclosed principles provide flexibility that enables RF front-ends designed as disclosed herein to be applied to many different applications including covert communications, drone communications, high data rate communications, signals intelligence, direction finding, multi-function apertures, radars and emulators, and electronic warfare. Embodiments and their related advantages and improvements of RF front-ends designed in accordance with the disclosed principles are discussed herein.

Abstract: A three-dimensional (3D) printing process utilizing an atmospheric plasma to conduct an electromagnetic energy to fuse extruded successive layers of thermoplastic material having a conductive material is disclosed. A 3D printing system for the 3D printing process is also provided. The 3D printing system includes a 3D printer, an extrusion nozzle, a plasma emitter, and an electromagnetic energy source. The 3D printing process includes the steps of extruding a thermoplastic composite with the extrusion nozzle in successive layers to form a 3D part; directing a substantially evenly distributed plasma onto a predetermined location on the 3D part; and emitting an electromagnetic energy through the plasma. The plasma conducts the electromagnetic energy to the predetermined location on the 3D part. The thermoplastic composite includes a conductive material that generates heat by reacting to the electromagnetic energy.

Abstract: The disclosed principles provide for an RF front-end design capable of up-converting, down-converting, and conditioning broadband signals for wireless transmission with an instantaneous bandwidth of up to 3.5 GHz within the frequency range of 2-12 GHz. In addition, embodiments of the disclosed principles provide flexibility that enables RF front-ends designed as disclosed herein to be applied to many different applications including covert communications, drone communications, high data rate communications, signals intelligence, direction finding, multi-function apertures, radars and emulators, and electronic warfare. Embodiments and their related advantages and improvements of RF front-ends designed in accordance with the disclosed principles are discussed herein.

Abstract: A three-dimensional (3D) printing process utilizing an atmospheric plasma to conduct an electromagnetic energy to fuse extruded successive layers of thermoplastic material having a conductive material is disclosed. A 3D printing system for the 3D printing process is also provided. The 3D printing system includes a 3D printer, an extrusion nozzle, a plasma emitter, and an electromagnetic energy source. The 3D printing process includes the steps of extruding a thermoplastic composite with the extrusion nozzle in successive layers to form a 3D part; directing a substantially evenly distributed plasma onto a predetermined location on the 3D part; and emitting an electromagnetic energy through the plasma. The plasma conducts the electromagnetic energy to the predetermined location on the 3D part. The thermoplastic composite includes a conductive material that generates heat by reacting to the electromagnetic energy.

Abstract: A three-dimensional printing apparatus for manufacturing a three-dimensional object includes a controller and a three-dimensional printer. The controller has a signal generator. The three-dimensional printer includes a print head, a part carrier, and a plasma field applicator. The plasma field applicator is disposed on an end of the print head. The controller is in communication with the print head, part carrier, and plasma field applicator. The three dimensional printer builds the three-dimensional object onto the part carrier. The signal generator outputs a signal to the plasma field applicator and the plasma field applicator generates an electromagnetic field and induced current pathway incident to the three-dimensional object on the part carrier.

Abstract: A three-dimensional printing apparatus for manufacturing a three-dimensional object includes a controller comprising a signal generator and a three-dimensional printer. The three-dimensional printer includes a print head, a three-dimensional object carrier, and an electrical field applicator. The electrical field applicator is disposed on an end of the print head. The controller is in communication with the print head, part carrier, and electrical field applicator. The three dimensional printer builds the three-dimensional object onto the three-dimensional object carrier. The signal generator outputs a signal to the electrical field applicator and the electrical field applicator generates an electrical field incident to the three-dimensional object on three-dimensional object carrier.

Abstract: A three-dimensional (3D) printing process utilizing an atmospheric plasma to conduct an electromagnetic energy to fuse extruded successive layers of thermoplastic material having a conductive material is disclosed. A 3D printing system for the 3D printing process is also provided. The 3D printing system includes a 3D printer, an extrusion nozzle, a plasma emitter, and an electromagnetic energy source. The 3D printing process includes the steps of extruding a thermoplastic composite with the extrusion nozzle in successive layers to form a 3D part; directing a substantially evenly distributed plasma onto a predetermined location on the 3D part; and emitting an electromagnetic energy through the plasma. The plasma conducts the electromagnetic energy to the predetermined location on the 3D part. The thermoplastic composite includes a conductive material that generates heat by reacting to the electromagnetic energy.

Abstract: A three-dimensional printing apparatus for manufacturing a three-dimensional object includes a controller and a three-dimensional printer. The controller has a signal generator. The three-dimensional printer includes a print head, a part carrier, and a plasma field applicator. The plasma field applicator is disposed on an end of the print head. The controller is in communication with the print head, part carrier, and plasma field applicator. The three dimensional printer builds the three-dimensional object onto the part carrier. The signal generator outputs a signal to the plasma field applicator and the plasma field applicator generates an electromagnetic field and induced current pathway incident to the three-dimensional object on the part carrier.

Abstract: A three-dimensional printing apparatus for manufacturing a three-dimensional object includes a controller comprising a signal generator and a three-dimensional printer. The three-dimensional printer includes a print head, a three-dimensional object carrier, and an electrical field applicator. The electrical field applicator is disposed on an end of the print head. The controller is in communication with the print head, part carrier, and electrical field applicator. The three dimensional printer builds the three-dimensional object onto the three-dimensional object carrier. The signal generator outputs a signal to the electrical field applicator and the electrical field applicator generates an electrical field incident to the three-dimensional object on three-dimensional object carrier.