Antenna calibration method, calibration value verification method and calibration device
A calibration device and antenna calibration technology, applied in the field of communication, can solve problems such as inaccurate calibration of amplitude difference and phase difference, reduction of beam shape and beam control accuracy, failure to compensate radio frequency signals, etc., to improve control accuracy and improve beam Performance, RF signal precision effect
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Embodiment 1
[0075] The first embodiment is an embodiment of the antenna calibration method in this application, including:
[0076] 301. The calibration device acquires a first relative value between two loop calibration signals corresponding to the transceiver unit group.
[0077] In this embodiment, the calibration device acquires the loop calibration signal corresponding to the first transceiver unit in the transceiver unit group, and simultaneously acquires the loop calibration signal corresponding to the second transceiver unit. Secondly, the calibration device acquires one of the two loop calibration signals. The first relative value between.
[0078] As shown in Figure 2, the transceiver unit group can be a combination of any two transceivers from transceiver 0 to transceiver N. The transceiver unit in the transceiver unit group is equivalent to the transceiver. The first transceiver unit in the following embodiment Take transceiver 0 as an example, and the second transceiver unit takes ...
Embodiment 2
[0107] The second embodiment is an embodiment of the calibration value verification method in this application, including:
[0108] 401. The calibration device obtains the combined amplitude parameters of the two radio frequency signals generated by the transceiver unit group.
[0109] In this embodiment, the calibration device collects the combined amplitude parameters of the two radio frequency signals generated by the transceiver unit group.
[0110] Optionally, the calibration device collects four amplitude parameters synthesized by the two radio frequency signals generated by the transceiver 1 and the transceiver 2 through the wireless probe. The specific implementation is as follows:
[0111] Such as Figure 5 As shown, point O is the position corresponding to transceiver 0, point A is the position of transceiver 1, and a wireless probe for collecting signals is placed at position D. O, A, and D are located in the XOY plane at the same time, where DB=DA , R=R1-R0, and 0 point c...
Embodiment 3
[0152] Example three, such as Image 6 As shown, a schematic diagram of an embodiment of the calibration device in this application includes: high-precision scanning frame, laser ranging sensor, wireless probe, active antenna, loading platform, communication exchange unit, communication control unit, power supply unit, axis control The connection relationship between each object such as Image 6 As shown, what needs to be explained is, Image 6 Shown above is a small darkened room.
[0153] The wireless probe and the laser ranging sensor are fixed together and hung on the high-precision scanning frame. The axis controller can control the high-precision scanning frame to move up and down, left and right, and back and forth in space; the wireless probe is used to collect the active antenna emission The distance D between the radio frequency signal and the active antenna is at least three times the wavelength of the radio frequency signal; the laser ranging sensor is used to measure ...
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