Wireless signal tester calibration device and method, and automatic testing system and method

Abstract

The invention provides a wireless signal tester calibration device and a method. A frequency meter is used for calibration of an output frequency of output signals of the wireless signal tester; a microwave power meter is used for calibration of output power of output signals of the wireless signal tester; a vector signal analyzer is used for EVM calibration of output signals of the wireless signal tester; a vector signal transmitter and the microwave power meter are used for calibration of power measurement of the wireless signal tester; the vector signal transmitter and the vector signal analyzer are used for calibration of EVM measurement of the wireless signal tester; and thus, reliability of performance test on the corresponding wireless transmitting and receiving equipment by using the wireless signal tester can be ensured. The invention also provides an automatic testing system and a method. The calibration device of the invention can be used for carrying out automatic calibration on the wireless signal tester, and the wireless signal tester after calibration is used for automatically testing to-be-tested wireless equipment.

Description

technical field [0001] The invention relates to the technical field of wireless signal testing, in particular to a calibration device and method for a wireless signal tester, and an automatic testing system and method. Background technique [0002] With the development of the Internet of Things industry and the increasing maturity of wireless technologies such as RF radio frequency, wifi, BT (Bluetooth), ZigBee, and NFC (near-field contact), the production of wireless transceiver equipment such as ZigBee signal transceiver equipment will gradually increase. However, due to the influence of factors such as the selection of device types, temperature changes, and device assembly for the production of ZigBee signal transceiver equipment and other products, products with different performances may appear even if they are based on the same platform and the same design. Therefore, wireless signal testers such as ZigBee testers are widely used in the research and development, produc...

AI Technical Summary

Problems solved by technology

So far, the country has not promulgated calibration specifications or verification procedures for wireless signal testers, and the existing operators have not considered the impact of the calibration of the wireless signal tester on the measurement results when using the wireless signal tester, thus Inaccurate measurement results, or inconsistent measurement results for the same product, and low measurement efficiency

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