Andrew Corporation

Mark Antenna Products, Inc.

Donald W Matz, Jr

Charles M Knop

Edward L Ostertag

Yuk-Bun Cheng

A grid parabolic antenna formed of a peripheral hoop and a plurality of metallic reflector ribs arranged in planes substantially parallel to each other and connected to the hoop. The reflector ribs each have an elongated cross-sectional configuration, with the elongation being in a direction that is generally parallel to the axis of the antenna feed which is at the focus of the parabola.

Grid antenna

A feed horn for a reflector-type microwave antenna comprises a smooth-walled conical horn and a lining of absorber material on the inside wall of the horn for reducing the width of the RPE (radiation pattern envelope) in the E plane of the antenna. The lining of absorber material extends from the wide end of the conical feed toward the narrow end thereof, terminating at a point where the horn diameter is about 7 times the longest wavelength of the microwave signals being transmitted. The width of the RPE in the E-plane of the antenna can be reduced to be nearly equal to the width of the RPE of the H-plane of the antenna without significantly degrading this H-plane RPE from its shape without absorber and without significantly changing the gain of the antenna.

Growing community of inventors

Lockport, IL, United States of America

Donald W Matz, Jr