Abstract: An apparatus for providing transdermal wireless communication includes medical implant circuitry; a transceiver coupled to the medical implant circuitry; a first metal surface having an end portion and a base portion; a second metal surface parallel to the first metal surface and connected to the first metal surface by a conductor, the second metal surface being separated from the first metal surface by a dielectric layer; a first radiating element tuned to a first frequency and disposed within the dielectric layer between the first metal surface and second metal surface; and a feed structure in electrical communication with the transceiver and the first radiating strip. The first radiating element has a first reactive portion at a first end thereof, a second reactive portion at a second end thereof, and a first radiating strip extending between the first reactive portion and the second reactive portion.

Abstract: The invention provides Rf and more particularly microwave treatment devices for biological samples or tissue. In a preferred embodiment, the antenna are capable of directing energy to a particularly focused area under the surface of the skin of a human. In other embodiments, the flexible antenna provides efficient delivery of energy to the sample or tissue regardless of the conformation of the antenna.

Abstract: An apparatus for providing transdermal wireless communication includes medical implant circuitry; a transceiver coupled to the medical implant circuitry; a first metal surface having an end portion and a base portion; a second metal surface parallel to the first metal surface and connected to the first metal surface by a conductor, the second metal surface being separated from the first metal surface by a dielectric layer; a first radiating element tuned to a first frequency and disposed within the dielectric layer between the first metal surface and second metal surface; and a feed structure in electrical communication with the transceiver and the first radiating strip. The first radiating element has a first reactive portion at a first end thereof, a second reactive portion at a second end thereof, and a first radiating strip extending between the first reactive portion and the second reactive portion.

Abstract: An apparatus for providing transdermal wireless communication includes medical implant circuitry; a transceiver coupled to the medical implant circuitry; a first metal surface having an end portion and a base portion; a second metal surface parallel to the first metal surface and connected to the first metal surface by a conductor, the second metal surface being separated from the first metal surface by a dielectric layer; a first radiating element tuned to a first frequency and disposed within the dielectric layer between the first metal surface and second metal surface; and a feed structure in electrical communication with the transceiver and the first radiating strip. The first radiating element has a first reactive portion at a first end thereof, a second reactive portion at a second end thereof, and a first radiating strip extending between the first reactive portion and the second reactive portion.

Abstract: An apparatus for providing transdermal wireless communication includes medical implant circuitry; a transceiver coupled to the medical implant circuitry; a first metal surface having an end portion and a base portion; a second metal surface parallel to the first metal surface and connected to the first metal surface by a conductor, the second metal surface being separated from the first metal surface by a dielectric layer; a first radiating element tuned to a first frequency and disposed within the dielectric layer between the first metal surface and second metal surface; and a feed structure in electrical communication with the transceiver and the first radiating strip. The first radiating element has a first reactive portion at a first end thereof, a second reactive portion at a second end thereof, and a first radiating strip extending between the first reactive portion and the second reactive portion.

Abstract: A steerable antenna system for transmitting and/or receiving an electromagnetic signal to a relatively moving target includes a hyperbolic subreflector secured to a frame rotatably mounted on a support structure via a first motor and a feed source located at a first focus of the subreflector for illuminating the same. The source, fixed to the structure, has a source axis pointing at the subreflector. A parabolic reflector having a focus in common with the second focus of the subreflector to transfer the signal between the same and a planar reflector is secured to the frame and has a beam axis. The planar reflector having a normal axis intersecting the beam axis with an angle is rotatably mounted on the frame via a second motor to transfer the signal between the parabolic reflector and the target. The system may include a controller connected to the motors to control the system to steer at the target anywhere within a full spherical angular range.

Abstract: A multimode horn used to feed an antenna includes a generally hollowed conical structure for transmitting and/or receiving an electromagnetic signal there through. The structure flaring radially outwardly from a throat section to an aperture has a pre-determined size and an internal wall with a plurality of discontinuities for altering the mode content of the signal to achieve a balance between a plurality of performance parameters of the antenna over a pre-determined frequency range of the signal. At least one performance parameter is from the group of horn on-axis directivity, horn pattern beamwidth, antenna illumination edge-taper, antenna illumination profile and antenna spill-over losses. The discontinuities are a combination of different local smooth profiles and/or steps and/or corrugations and/or chokes.