United States of America As Represented by the Secretary of the Air Force

Voss Scientific, LLC

Robert A Koslover

Lynn M Miner

Donald E Voss

Charles D Cremer

William P Geren

An antenna for the radiation of ultra-wideband pulsed electromagnetic radiation. The invention is a high gain, transverse electromagnetic parallel-plate, open-sided transmission-line array horn antenna utilizing a binary tree-based design, which produces a multiple number of paralleled horns and final radiation apertures, connected to a single signal feed waveguide. This invention antenna structure produces an equal path length for the signals in each of the paralleled branches, virtually eliminating phase error in the E plane and producing high gain characteristics over most of the desired radiation frequency range.

Compact, high-gain, ultra-wide band (UWB) transverse electromagnetic

A waveguide mode converting apparatus especially of the TM.sub.01 to TE.sub.11 converting type and usable in circuit waveguide apparatus with desirable high efficiency and relatively small physical size is disclosed. The mode converter employs the combination of an asymmetrically shaped conical frustum waveguide segment together with a radially disposed fin having tapered input and output or ramp surfaces. Details of a 1.3 gigahertz embodiment of the mode converter including dimensions are included along with the results of efficiency measuring and indications of alternate arrangements of the invention.

Growing community of inventors

Albuquerque, NM, United States of America

Robert A Koslover