Patent ID: 11923935
Assignee: ZTE CORPORATION
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 1:
2. The vehicle-mounted TBOX of claim 1, wherein the measurement device comprises a bidirectional coupler, an attenuator, a detector and a comparator, wherein:
the bidirectional coupler is configured to receive an incident wave power and a reflected wave power when the antenna device is in operation;
the attenuator is configured to attenuate the incident wave power and reflected wave power received by the bidirectional coupler to obtain an attenuated incident wave signal and a reflected wave signal;
the detector is configured to detect the attenuated incident wave signal and the reflected wave signal and output detection voltages comprising a forward detection output voltage and a reverse detection output voltage; and
the comparator is configured to perform subtraction on the forward detection output voltage and the reverse detection output voltage to obtain a difference between the forward detection output voltage and the reverse detection output voltage, the difference being used to determine the real-time standing wave ratio according to a function relationship between the difference and a reflection coefficient and a function relationship between the reflection coefficient and the standing wave ratio.