Speaker
Description
This paper presents calibration and validation methods for a novel electric (E-) field-sensing approach in the near field of sub-THz sources (100–300 GHz). The D-band (110 – 170 GHz) was proposed for use in 6G communication systems. Radiofrequency detector diodes in traditional near-field probes cannot operate effectively beyond 110 GHz. This necessitates the development of new sensing approaches, as well as new calibration and validation methods. The sensing approach employs plasmonic modulators. A calibration procedure with standard gain horns establishes a traceable voltage-to-E-field relationship in the sensor system. Sources based on existing standards have been developed to extend their coverage to D-band system validation. The suitability of this approach for near-field E-field system calibration and validation in the sub-terahertz range was demonstrated by comparison with a commercially available system at 110 GHz.
