US 12,316,391 B2
Phased-array antenna precision self-calibration
James June-Ming Wang, San Diego, CA (US); Yuh-Min Lin, San Diego, CA (US); and Powei Chen, San Diego, CA (US)
Assigned to Kyocera International Inc, San diego, CA (US)
Filed by Kyocera International Inc., San Diego, CA (US)
Filed on Apr. 1, 2022, as Appl. No. 17/711,562.
Claims priority of provisional application 63/246,221, filed on Sep. 20, 2021.
Prior Publication US 2023/0095020 A1, Mar. 30, 2023
Int. Cl. H04B 17/11 (2015.01); H04B 1/00 (2006.01); H04B 1/04 (2006.01); H04B 1/16 (2006.01); H04B 17/16 (2015.01); H04B 17/21 (2015.01); H04B 17/10 (2015.01)
CPC H04B 17/11 (2015.01) [H04B 1/0007 (2013.01); H04B 1/04 (2013.01); H04B 1/1607 (2013.01); H04B 17/16 (2015.01); H04B 17/21 (2015.01); H04B 2001/0408 (2013.01); H04B 17/101 (2015.01)] 20 Claims
OG exemplary drawing
 
1. A method of self-calibration for radio frequency integrated circuits (RFICs) within a phased-array antenna, comprising:
powering off all active circuits and power amplifiers on the RFICs;
powering on an active circuit of an RFIC under calibration and monitor a current draw from the active circuit;
measuring a bias current of the active circuit and adjusting the bias current to a predefined level during calibration;
repeating the calibration of the bias current for each active circuit of the RFIC and for all the RFICs within the phased-array antenna.