Andrew Corporation

David Webb

Jonathon C Veihl

Mano Dorsey Judd

Michael D Thomas

Ronald Joseph Brandau

David Geen

Kevin R Krebs

Scott Imbery

A multi-band reflector antenna having a main reflector, a sub reflector, a first feed and a second feed. The first feed, the sub reflector and the main reflector positioned in a Gregorian optic configuration wherein an output of the first feed is directed to the sub reflector, from the sub reflector to the main reflector and from the main reflector into a first beam. The sub reflector may be shaped to distribute the output of the first feed reflecting off the sub reflector onto the main reflector whereby a central area of the main reflector has a lower illumination than a surrounding outer area of the main reflector and or elongated vertically. The second feed projecting from a hole in the sub reflector is oriented whereby an output of the second feed is directed to the main reflector and from the main reflector into a second beam.

Co-located multi-band antenna

A directional antenna formed by associating a stationary generally omni-directional antenna element with an RF reflector formed from, for example, a folded, parabolic or elliptical RF reflecting surface. Rotating the RF reflector about the stationary antenna element creates a directional characteristic in the resulting antenna over, for example, a 360 degree range of azimuth. Rotation of the RF reflector may be remotely driven by a motor coupled, for example, to a gear connected to the RF reflector. The direct connection of the antenna element and the enclosed lightweight rotating assembly provide a reliable, easy to install and cost effective antenna.

Antenna with Rotatable Reflector

A dynamically variable beamwidth and/or variable azimuth scanning antenna includes a plurality of active radiating columns and a plurality of continuously adjustable mechanical phase shifters. The columns define a beam having a beamwidth and an azimuth scan angle. Each phase shifter has an independent remotely controlled drive and is directly electrically connected to a respective radiating column. The phase shifters are independently operated to vary the beamwidth and/or azimuth scan angle of the beam defined by the plurality of active radiating columns.

Dynamically variable beamwidth and variable azimuth scanning antenna

A combined directional beam and omnidirectional antenna comprises a unitary structure having a plurality of antennas being configured and oriented to achieve both directional beam coverage and omnidirectional beam coverage.

Combination directional/omnidirectional antenna

An antenna system includes a plurality of cascading power dividers that work in conjunction with a plurality of mechanical phase shifters to vary a beamwidth and/or an azimuth scan angle of a beam that radiates from active columns. Each phase shifter has an independent remotely controlled drive and is directly electrically connected to a respective radiating column. The radiating columns include cross dipole antenna elements.

Adjustable beamwidth and azimuth scanning antenna with dipole elements

An integrated feed system for an antenna includes a circuit board, a feed network formed on the circuit board, and a plurality of feed elements electrically coupled with the feed network and projecting outwardly therefrom. The circuit board has one or more projecting edge parts for mounting the feed elements. An antenna having one or more reflector elements utilizes the integrated antenna feed system. A corresponding method for the feed system and the antenna is also provided.

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Dallas, TX, United States of America

David Webb