The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 26, 2019
Filed:
Mar. 01, 2017
Applicant:
Xirrus, Inc., Thousand Oaks, CA (US);
Inventor:
Abraham Hartenstein, Chatsworth, CA (US);
Assignee:
Riverbed Technology, Inc., San Francisco, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 15/02 (2006.01); H01Q 21/30 (2006.01); H01Q 3/24 (2006.01); H01Q 19/10 (2006.01); H01Q 21/20 (2006.01); H01Q 1/00 (2006.01); H01Q 1/52 (2006.01); H01Q 13/08 (2006.01); H01Q 21/06 (2006.01); H01Q 25/00 (2006.01); H04B 7/06 (2006.01); H04B 15/00 (2006.01); H04W 16/28 (2009.01); H04W 84/12 (2009.01);
U.S. Cl.
CPC ...
H01Q 21/30 (2013.01); H01Q 1/007 (2013.01); H01Q 1/523 (2013.01); H01Q 3/24 (2013.01); H01Q 13/085 (2013.01); H01Q 19/106 (2013.01); H01Q 21/064 (2013.01); H01Q 21/205 (2013.01); H01Q 25/00 (2013.01); H04B 7/0608 (2013.01); H04B 15/00 (2013.01); H04B 15/02 (2013.01); H04W 16/28 (2013.01); H04W 84/12 (2013.01);
Abstract
Antenna arrays and access points are disclosed. An antenna array includes first second, third, and fourth antennas formed in a 2×2 grid on a first surface of a planar substrate. Each of the four antennas is linearly polarized in a first direction and provides a roughly cardiod radiation pattern in a plane normal to the first direction. Nulls of the cardiod radiation patterns of the first and second antennas face the third and fourth antennas, respectively, and nulls of the cardiod radiation patterns of the third and fourth antenna face the first and second antennas, respectively.