US 12,272,881 B1
Phased array antenna using series-fed sub-arrays
Christopher Steven Merola, Kirkland, WA (US); and Ming-Chun Paul Lee, Kirkland, WA (US)
Assigned to Amazon Technologies, Inc., Seattle, WA (US)
Filed by Amazon Technologies, Inc., Seattle, WA (US)
Filed on Jul. 31, 2023, as Appl. No. 18/228,530.
Application 18/228,530 is a division of application No. 16/989,754, filed on Aug. 10, 2020, granted, now 11,777,209.
Int. Cl. H01Q 3/40 (2006.01); H01Q 3/26 (2006.01); H01Q 3/36 (2006.01); H01Q 5/35 (2015.01); H01Q 21/00 (2006.01)
CPC H01Q 3/40 (2013.01) [H01Q 3/2694 (2013.01); H01Q 3/36 (2013.01); H01Q 5/35 (2015.01); H01Q 21/0075 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A communication system comprising:
a modem; and
a feed port coupled to the modem;
a plurality of parallel feed lines coupled to the feed port; and
a plurality of groups of tiles, each of the plurality of groups of tiles being coupled to one of the plurality of parallel feed lines, wherein the plurality of groups of tiles comprises:
a first group comprising i) a first tile coupled to a first feed line of the plurality of parallel feed lines, ii) a second tile that is coupled in series with the first tile of the first group, and iii) a third tile that is coupled in series with the first tile of the first group, wherein the second tile and the third tile of the first group are coupled in parallel with each other; and
a second group comprising iv) a first tile coupled to a second feed line of the plurality of parallel feed lines, v) a second tile that is coupled in series with the first tile of the second group, and vi) a third tile coupled in series with the first tile of the second group, wherein the second tile and the third tile of the second group are coupled in parallel with each other, wherein each tile of the plurality of groups of tiles comprises a set of antenna elements coupled to a beamforming integrated circuit (IC).