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1.发明授权公开(公告)号：US12267115B2
公开(公告)日：2025-04-01
申请号：US18013937
申请日：2021-06-21
Applicant: SANECHIPS TECHNOLOGY CO., LTD.
Inventor： Chengwei Jia
Abstract: The present disclosure provides a method for determining a target initial phase, including: 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; 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. The present disclosure further provides a phase calibration method, an apparatus for determining an initial phase, and an antenna system.
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公开(公告)号：US12113584B2
公开(公告)日：2024-10-08
申请号：US17777425
申请日：2020-11-18
Applicant: SANECHIPS TECHNOLOGY CO., LTD.
Inventor： Chengwei Jia
Abstract: A radio frequency receiving link and a radio frequency transceiving device are provided. The radio frequency receiving link includes: an input unit, configured to input a first input signal; a clock unit, configured to generate a local oscillator signal; a receiving link frequency-mixing unit, configured to obtain the first input signal and the local oscillator signal, and generate a first frequency-mixing signal according to the first input signal and the local oscillator signal; and a calibration unit, configured to obtain first direct current offset information of the radio frequency receiving link, wherein the first direct current offset information is direct current offset information in the radio frequency receiving link when the receiving link frequency-mixing unit generates the first frequency-mixing signal.
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