US 12,330,806 B2
Landing zone designators
Michael J. Krenz, Roscoe, IL (US); and Stephen Tongue, Hampden, MA (US)
Assigned to Rockwell Collins, Inc., Cedar Rapids, IA (US)
Filed by Rockwell Collins, Inc., Cedar Rapids, IA (US)
Filed on Jan. 17, 2022, as Appl. No. 17/577,268.
Prior Publication US 2023/0227177 A1, Jul. 20, 2023
Int. Cl. H01Q 3/04 (2006.01); B64D 45/04 (2006.01); H01Q 25/00 (2006.01)
CPC B64D 45/04 (2013.01) [H01Q 3/04 (2013.01); H01Q 25/001 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An aircraft landing system comprising:
a landing zone comprising:
a landing pad;
a first set of landing antennas; and
a second set of landing antennas; and
an onboard receiver comprising:
a first antenna;
a second antenna;
a motor configured to rotate an antenna assembly including the first antenna and second antenna; and
at least one processor in data communication with a memory storing processor executable code for configuring the at least one processor to:
receive a first signal via the first antenna corresponding to a first vertical lobe of a landing pad;
receiving a second signal via the second antenna corresponding to a second vertical lobe of the landing pad; and
continuously monitor a signal strength of the first signal and the second signal,
wherein:
the first set of landing antennas are configured to produce a first vertical lobe having substantially equal signal strength along a first chord defining a first centerline of the landing pad; and
the second set of landing antennas are configured to produce a second vertical lobe having substantially equal signal strength along a second chord defining a second centerline of the landing pad orthogonal to the first centerline.