US 11,658,406 B2
Tapered wall radome
Ronald O. Lavin, Gilbert, AZ (US); Michael M. LoRe, Mesa, AZ (US); Andy H. Lee, Phoenix, AZ (US); and Michael B. Carr, Mesa, AZ (US)
Assigned to The Boeing Company, Chicago, IL (US)
Filed by The Boeing Company, Chicago, IL (US)
Filed on Jun. 18, 2019, as Appl. No. 16/444,520.
Prior Publication US 2020/0403302 A1, Dec. 24, 2020
Int. Cl. H01Q 1/42 (2006.01); G01S 3/04 (2006.01); G01S 3/48 (2006.01); H01Q 21/24 (2006.01); H01Q 1/28 (2006.01)
CPC H01Q 1/421 (2013.01) [G01S 3/043 (2013.01); G01S 3/48 (2013.01); H01Q 21/24 (2013.01); H01Q 1/28 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A direction-finding device comprising:
a first antenna configured to receive first electromagnetic energy;
a second antenna configured to receive second electromagnetic energy;
a radome positioned to cover and protect the first antenna such that the radome is located in a receiving pathway of the first antenna, wherein the radome is configured to cause a predetermined phase shift to the first electromagnetic energy received by the first antenna, wherein the predetermined phase shift varies based on an angular position of the receiving pathway of the first antenna, and wherein the radome is not located in a receiving pathway of the second antenna;
a motor coupled to the radome and configured to rotate the radome relative to the first antenna; and
a radio receiver configured to receive the first electromagnetic energy from the first antenna and second electromagnetic energy from the second antenna, wherein the radome causes a phase of the first electromagnetic energy to differ from a phase of the second electromagnetic energy.