Radio frequency device calibration method

A radio frequency (RF) device calibration method, comprising:

• obtaining a first measurement result (M1) of a first channel of a first-stage device under a first control condition;
• obtaining a first reference measurement result (RM1) of a first reference channel of a second-stage device, wherein the first channel corresponds to the first reference channel, and the first measurement result (M1) and the first reference measurement result (RM1) are measured before the first-stage device and the second-stage device are assembled into an RF device (10);
• determining a first estimated measurement result (EM1) corresponding to the first channel based on the first measurement result (M1) and the first reference measurement result (RM1);
• obtaining a first post-assembly measurement result (PM1) of the first channel of the RF device (10) under the first control condition after the first-stage device and the second-stage device are assembled into the RF device (10);
• and
• performing a first calibration operation corresponding to the first channel based on the first estimated measurement result (EM1) and the first post-assembly measurement result (PM1).