Field probe and method for conducting antenna measurements
AssigneeRohde & Schwarz GmbH & Co. KG
InventorsMert Celik, Hendrik Bartko
Life of this patent
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Abstract
Field probe for conducting antenna measurements by phaseless measurements. An antenna arrangement comprises three or four antennas for measuring RF waves. The measured RF waves are pairwise added and subtracted. Based on the result of the adding and subtracting operations, magnitude patterns and phase patterns are determined. In this way, magnitude and phase patterns of electromagnetic waves emitted by a device under test can be determined by a completely passive device.
Claims15
A field probe for conducting antenna measurements by phaseless measurements, the field probe comprising:
- an antenna arrangement comprising a number of three or four antennas, wherein the number of antennas share a common center point, and each of the number of antennas is configured to measure radio frequency waves emitted by a device under test;
- and
- a radio frequency, RF, circuitry, directly connected to the number of antennas and configured to receive the measured RF waves from each of the number of antennas, add the measured RF waves, subtract the measured RF waves, and determine at least one of a magnitude pattern and a phase pattern of the device under test based on the results of the added RF waves and the subtracted RF waves.
A method for conducting antenna measurements by phaseless measurements, the method comprising:
- measuring radio frequency, RF, waves by an antenna arrangement comprising a number of three or four antennas, wherein the number of antennas share a common center point;
- adding the measured RF waves;
- subtracting the measured RF waves;
- and
- determining at least one of a magnitude pattern and a phase pattern of the device under test based on the results of the added RF waves and the subtracted RF waves.
Dependencies are inferred from the claim text.