General Electric Company

US Government As Represented by the Secretary of the Army

Donald H Kuhn

Conrad E Nelson

Cousby Younger, Jr

Gerald A Otteni

A mechanically positioned phase steered transfer lens which is illuminated y a fixed collimation lens. Wide angle scan is accomplished by tilting the movable lens and electronically scanning the beam to the desired angle. The mechanical motion minimizes the required electronic scan angles, thus minimizing the number of phase shifters required.

Dual lens antenna with mechanical and electrical beam scanning

An RF transparent antenna shield structure is disclosed particularly useful for missile nose cone radome and other severe environment applications. The structure comprises a solid metal wall member perforated to form a triangular grid array of windows each of which has fitted within it a dielectric plug member the end faces of which are flush with the opposite surfaces of the metal wall member. The thickness of the wall member and the dielectric constant of these plug members are chosen such as provide a resonant radome thickness. The waveguide-space junction susceptances are tuned out by capacitive iris members concentrically disposed on the plug member end faces, to yield acceptable uniformity of insertion phase and attenuation even at relatively extreme incidence angles.

Growing community of inventors

North Syracuse, NY, United States of America

Donald H Kuhn