US 12,244,357 B2
Antenna arrays for testing wireless devices
Rajaratnam Thiruvarankan, Beaverton, OR (US)
Assigned to KEYSIGHT TECHNOLOGIES SINGAPORE (SALES) Pte. Ltd., Singapore (SG)
Filed by Keysight Technologies Singapore (Sales) Pte. Ltd., Singapore (SG)
Filed on Jul. 25, 2023, as Appl. No. 18/226,245.
Application 18/226,245 is a division of application No. 16/380,926, filed on Apr. 10, 2019, granted, now 11,728,908.
Application 16/380,926 is a division of application No. 15/234,888, filed on Aug. 11, 2016, granted, now 10,313,031, issued on Jun. 4, 2019.
Prior Publication US 2023/0370173 A1, Nov. 16, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H01Q 1/50 (2006.01); G01R 29/10 (2006.01); H04B 17/00 (2015.01); H04B 17/10 (2015.01)
CPC H04B 17/101 (2015.01) [H04B 17/0085 (2013.01)] 5 Claims
OG exemplary drawing
 
1. An antenna array comprising:
a printed circuit board;
a plurality of power combiners mounted on or within the printed circuit board; and
a plurality of groups of antenna elements mounted on the printed circuit board, wherein each group of antenna elements is matched to a matching group of antenna elements by virtue of being coupled to a respective power combiner for both the group and the matching group, and wherein the antenna elements are spaced apart so that each antenna element is spaced apart from every other antenna element by at least half of a wavelength of a radio frequency (RF) test signal having a frequency in the range of 2.4 GHz to 6 GHz, wherein the antenna elements are spaced apart in a rectangular grid having four quadrants, and wherein, for each group and matching group of antenna elements, the antenna elements of the group and the matching group are mirrored on opposite quadrants of the rectangular grid.