Metering device and method for radio frequency testing system errors in mobile terminal production

Abstract

The invention discloses a metering device and method for radio frequency testing system errors in mobile terminal production, wherein the device comprises a single source, a power meter, a testing device and an output module, the method comprises the following steps: the signal source is used for sending upstream testing signals, the power meter is used for testing internal loss of the signal source according to the upstream testing signals, the testing device is used for testing the line loss of the upstream testing signals, the output module is used for outputting the difference value of the line loss of the upstream testing signals tested by the testing device and the internal loss of the signal resource tested by the power meter, wherein the difference value is taken as upstream chain line loss of a radio frequency testing system in the mobile terminal production. The meter device and method avoid hidden dangers brought by the self errors of a golden board of a golden machine, and adopt the stable signal resource and the power meter with higher accuracy to test the internal loss of the signal resource, so that the system errors are metered more accurately, and further the accuracy, stability and reliability of the radio frequency testing system in the mobile terminal production are improved.

Description

technical field [0001] The invention relates to the field of production testing of mobile terminals, in particular to a measurement device and method for measuring system errors in radio frequency testing of mobile terminals. Background technique [0002] With the rapid development of wireless communication, the requirements for the radio frequency performance of mobile terminals are also getting higher and higher. During the production test, a calibration station is used to ensure the radio frequency performance of the mobile terminal. The production test will conduct a comprehensive test on the radio frequency of the calibration station, and the calibration station will compensate for the differences caused by the consistency, placement, and temperature of RF devices, so that the radio frequency performance can meet the standards of the communication industry. The calibration station and comprehensive test are the most critical components of the RF test system for mobile ...

AI Technical Summary

Problems solved by technology

[0006] 1. There are certain production errors in the production of gold machine and gold plate. The line loss of the system is an estimated value, which is not accurate;

[0007] 2. When the gold machine gold plate itself is measured, there will be a little difference in the power of each transmitted signal, with fluctuations and poor consistency;

[0008] 3. The measurement equipment itself has line attenuation, and in the actual situation, the uplink and downlink line losses of the test system are inconsistent, but the existing methods set the two to be consistent for convenience, ignoring the inconsistency of the uplink and downlink line losses

[0009] To sum up, the existing measurement method for the error of the radio frequency test system for mobile terminal production is not accurate in terms of system accuracy. Due to the error when the gold machine and gold plate transmit the signal, the measurement equipment cannot accurately measure the attenuation of the radio frequency line and the measurement equipment itself. In the end, it is impossible to accurately measure the error of the test system. In the face of the increasingly high requirements for the RF performance of mobile terminals in the current market, this will affect the quality and reliability of the product.

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