US 12,267,115 B2
Phase determination method and apparatus, phase calibration method, medium and antenna device
Chengwei Jia, Guangdong (CN)
Assigned to SANECHIPS TECHNOLOGY CO., LTD., Guangdong (CN)
Appl. No. 18/013,937
Filed by SANECHIPS TECHNOLOGY CO., LTD., Guangdong (CN)
PCT Filed Jun. 21, 2021, PCT No. PCT/CN2021/101208
§ 371(c)(1), (2) Date Dec. 30, 2022,
PCT Pub. No. WO2022/001721, PCT Pub. Date Jan. 6, 2022.
Claims priority of application No. 202010618636.8 (CN), filed on Jun. 30, 2020.
Prior Publication US 2023/0299857 A1, Sep. 21, 2023
Int. Cl. H04B 17/00 (2015.01); H04B 17/12 (2015.01); H04B 17/14 (2015.01); H04B 17/21 (2015.01)
CPC H04B 17/0085 (2013.01) [H04B 17/12 (2015.01); H04B 17/14 (2015.01); H04B 17/221 (2023.05)] 13 Claims
OG exemplary drawing
 
1. A method for determining a target initial phase, comprising:
acquiring a voltage amplitude of a system direct-current offset signal of a phased array system corresponding to N target channels to be calibrated;
respectively acquiring voltage amplitudes of a total direct-current offset signal under different initial phases, wherein for any initial phase, the total direct-current offset signal is a total direct-current offset signal of an initial mixed signal output from a mixer downstream of a power combiner of the phased array system after test signals are provided for the N target channels; and
calculating voltage amplitudes of a mixed direct-current offset signal of the N target channels under the different initial phases, and taking an initial phase of the N target channels, when the voltage amplitude of the mixed direct-current offset signal reaches the maximum value, as a target initial phase of the N target channels;
wherein the voltage amplitude of the mixed direct-current offset signal is calculated by:
Vdcmix=Vdctot−Vdcint;
where Vdcint is the voltage amplitude of the system direct-current offset signal;
Vdctot is the voltage amplitude of the total direct-current offset signal;
Vdcmix is the voltage amplitude of the mixed direct-current offset signal; and
N is the number of channels in the phased array system.