US 7,598,918 B2
Tubular endfire slot-mode antenna array with inter-element coupling and associated methods
Timothy E. Durham, Melbourne, Fla. (US); Griffin K. Gothard, Satellite Beach, Fla. (US); Anthony Mark Jones, Palm Bay, Fla. (US); Jay Kralovec, Viera, Fla. (US); Stephen R. Landers, Satellite Beach, Fla. (US); Sean Ortiz, West Melbourne, Fla. (US); Chris Snyder, Melbourne, Fla. (US); and Ralph Trosa, Indialantic, Fla. (US)
Assigned to Harris Corporation, Melbourne, Fla. (US)
Filed on Jan. 21, 2008, as Appl. No. 12/17,183.
Application 12/017183 is a continuation in part of application No. 11/303338, filed on Dec. 16, 2005, granted, now 7,420,519.
Prior Publication US 2008/0150820 A1, Jun. 26, 2008
This patent is subject to a terminal disclaimer.
Int. Cl. H01Q 13/10 (2006.01)
U.S. Cl. 343—770  [343/700 MS] 21 Claims
OG exemplary drawing
 
1. A tubular slot-mode antenna comprising:
a tubular substrate; and
an array of slot-mode antenna units carried by said tubular substrate;
each slot-mode antenna unit comprising a pair of patch antenna elements arranged in laterally spaced apart relation about at least one central feed position;
adjacent patch antenna elements of adjacent slot-mode antenna units comprising respective spaced apart edge portions having predetermined shapes and relative positioning to provide increased capacitive coupling therebetween.