Скачать или смотреть Understanding VNAs - Power Calibration

Although not as a common as system error correction used for S-parameter measurements, scalar power calibration is an important type of VNA calibration needed when making power-related (wave) measurements, particularly for measurements such as gain compression and P1dB. This presentation provides a short technical overview of power calibration, explains the difference between source and receiver power calibration, and describes the process used for each type of power calibration.

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Timeline:
00:00 Introduction
00:13 About VNAs and calibration
01:20 About power calibration
02:05 Measurements where power calibration is important
02:56 Two types of power calibration
03:27 About measurement and reference receivers
04:20 About reference receiver calibration
05:08 Performing reference receiver calibration
06:06 About flatness calibration
07:40 About receiver calibration
08:42 Two methods of performing receiver calibration
09:25 Summary