US Patent No. 10,644,411

SCALABLE ANTENNA ARRAY


Patent No. 10,644,411
Issue Date May 05, 2020
Title Scalable Antenna Array
Inventorship Jason Saberin, Simi Valley, CA (US)
Frank Cipolla, Simi Valley, CA (US)
Sophal Somreth, Simi Valley, CA (US)
Assignee L3 Technologies, Inc., New York, NY (US)

Claim of US Patent No. 10,644,411

1. A pillbox array comprising:a feed network unit that is configured to receive an input wave, the feed network unit including:
a plurality of feed branches for splitting and transmitting the input wave;
a plurality of pillbox reflectors that are configured to collimate the input wave to thereby produce a wave of equal phase front; and
a plurality of radiating waveguides for radiating the collimated input wave;
a load plate mounted on the feed network unit, the load plate including a plurality of load elements that are placed between the plurality of radiating waveguides; and
a polarizer plate that is mounted on the load plate and the feed network unit, the polarizer plate including a plurality of polarizers,
wherein when the polarizer plate is laterally shifted so that the plurality of polarizers are located on a first side of the plurality of radiating waveguides, a first circular polarization occurs, and
wherein when the polarizer plate is laterally shifted so that the plurality of polarizers are located on a second side of the plurality of radiating waveguides, a second circular polarization occurs.