US 12,133,090 B2
Passive intermodulation interference optimized antenna configuration
David Edwin Barker, Cheshire (GB); Peter Chun Teck Song, San Jose, CA (US); and Karl Ni, Rochester, NY (US)
Assigned to Quintel Cayman Limited, Grand Cayman (KY)
Filed by Quintel Cayman Limited, Grand Cayman (KY)
Filed on Apr. 13, 2022, as Appl. No. 17/720,249.
Claims priority of provisional application 63/174,729, filed on Apr. 14, 2021.
Prior Publication US 2022/0338024 A1, Oct. 20, 2022
Int. Cl. H04W 16/28 (2009.01); H04B 1/00 (2006.01); H01Q 3/26 (2006.01); H01Q 3/28 (2006.01)
CPC H04W 16/28 (2013.01) [H04B 1/0064 (2013.01); H01Q 3/2611 (2013.01); H01Q 3/28 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A base station system comprising:
at least one base station radio;
at least one antenna, the at least one antenna including at least a first antenna comprising a substantially linear array of antenna elements arranged in substantially a vertical plane; and
at least one antenna feed network for distributing radio frequency (RF) signals as component RF signals across the linear array of antenna elements of the at least the first antenna to form at least one beam in an elevation plane;
wherein the at least one antenna feed network applies amplitude and phase weights to the component RF signals, wherein the amplitude and phase weights are selected to minimize RF coupling between the at least the first antenna and passive intermodulation sources in an area of a near-field of the at least the first antenna below a main beam of the at least one beam.