CALIBRATION MODULE FOR A TESTER AND TESTER

摘要

A calibration module for a tester, for testing a device under test, includes a pair of RF-channel terminals, a calibration device, a pair of measurement terminals and a mode selector. The pair of RF-channels terminals is configured to send or receive measurement signals to or from an RF-channel of the tester. The calibration device is configured to perform a calibration of the RF-channel based on the measurement signals sent to, or received from, the RF-channel. The pair of measurement terminals is configured to send or receive measurement signals to or from the device under test. The mode selector is configured to connect, in a calibration phase, the pair or RF-channel terminals to the calibration device for calibrating the RF-channel and to connect, in a measurement phase, the pair of RF-channel terminals to the pair of measurement, terminals for routing measurement signals from the RF-channel to the device under test or vice versa.

主权项

1. A method comprising:
coupling radio frequency channel (RF-channel) terminals, during a calibration phase, to a calibration device, wherein the RF-channel terminals are configured to send or receive measurement signals to or from an RF-channel of an automatic test equipment (ATE); calibrating, by the calibration device during the calibration phase, the RF-channels based on measurement signals routed between the RF-channel terminals and the calibration device; coupling the radio RF-channel terminals, during a measurement phase, to measurement terminals, wherein the measurement terminals are configured to send or receive measurement signals to or from a device under test (DUT); and measuring, during the measurement phase, the measurement signals routed between the RF-channel terminals and the measurement terminals.