Randomized trial demonstrates polarization-sensitive measurements of microwave fields in antennas, indicating advancements for electromagnetic diagnostics.
Key Points
This study aims to improve the characterization of microwave near fields using a novel diamond probe for enhanced polarization information.
Developed a fiber-integrated diamond probe utilizing nitrogen-vacancy centers.
Implemented projection-based mapping of microwave magnetic fields with circular selectivity.
Validated against practical antenna structures relevant to wireless communication.
Successfully mapped magnetic fields from a double-ridge horn antenna, showing agreement with linear field distributions.
Revealed a circularly selective response for a helical antenna, consistent with local measurement geometry.
Measurements were robust and did not require absolute calibration, aligning with simulation predictions.