Method of calibrating a microwave source

Details Method of calibrating a microwave source Method of calibrating a microwave source

2007-11-06

2007-11-06

Tarcza, Thomas H. (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Testing or calibrating of radar system

By monitoring

C342S165000, C342S170000, C342S173000, C342S174000, C342S368000

Reexamination Certificate

active

10538057

ABSTRACT:
The present invention relates to a method for calibrating the phase of a microwave source, in which: a calibration circuit is closed, the calibration circuit comprising an injection channel connected to a measurement channel via the source to be calibrated; a test signal is injected through the source to be calibrated, the test signal being injected on the injection channel, the phase φmof the signal having passed through the source to be calibrated is measured, the phase of the signal being measured on the measurement channel, wherein: the amplitude Amof the signal having passed through the source to be calibrated is measured, the amplitude of the signal being measured on the measurement channel;The calibration circuit is opened at the source to be calibrated; the test signal is injected on the injection channel; the phase φfand the amplitude Afof the signal present on the measurement channel is measured; a corrected phase value φcis determined, this corrected phase being the phase of a complex number Uc, calculated from two complex numbers Umand Uf, where: Um=Am·exp(i·φm) Uf=Af·exp(i·φf).

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