The Boeing Company

Hrl Laboratories, LLC

Ignacio Ramos

Carson R White

James H Schaffner

Christopher Stephen Roper

Christopher Paul Henry

Hyok Jae Song

Walter S Wall

Todd Rork

Nathan R Brooks

An active biconical antenna and a receive array comprising a combination of active biconical and Vivaldi antennas. In one configuration, the active biconical antenna includes upper and lower cones. Each cone has a respective truncated apex. First and second feed points are respectively connected to the truncated apexes of the upper and lower cones and to first and second conductors. The active biconical antenna further includes a buffer amplifier having respective input terminals connected to the first and second conductors. The buffer amplifier has an input impedance that is impedance matched to an antenna impedance at and above but not below a frequency fand is higher than the antenna impedance at frequencies substantially less than f. The buffer amplifier also has an output impedance that is impedance matched to a system impedance at frequencies both above and below f. A length of the first and second conductors is less than a wavelength at the frequency f.

Active biconical antenna and receive array

An energy conversion device disposed in series with an RF driver circuit and an RF antenna, the energy conversion device being arranged to convert a portion of available RF power from the RF driver circuit into a different form of energy (direct current, thermal, or higher frequency electromagnetic waves such as light) which is converted, if needed, to DC and stored in an energy storage device coupled with the RF driver circuit for supplying recycled electrical energy thereto. The RF antenna may be an electrically small antenna and thus a antenna matching network may be provided between the RF driver circuit and the RF antenna. The energy conversion device may comprise, for example, (i) a transformer in combination with a rectifying circuit, (ii) a full wave rectifier, (iii) a half wave rectifier, (iv) a heat and/or light producing device, an energy converter (such as a generator) or a combination of the foregoing.

Broadband antenna matching network employing energy recovery schemes

Growing community of inventors

Santa Monica, CA, United States of America

Ignacio Ramos