OTA measurement technique for sub-THz integrated lens antennas

Rasilainen, Kimmo; Leinonen, Marko E.; Nokandi, Mostafa Jafari; Chen, Jiangcheng; Nevala, Klaus; Rahkonen, Timo; Pärssinen, Aamo (2023-06-14)
 
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https://doi.org/10.1109/ARFTG56062.2023.10148886

Rasilainen, Kimmo
Leinonen, Marko E.
Nokandi, Mostafa Jafari
Chen, Jiangcheng
Nevala, Klaus
Rahkonen, Timo
Pärssinen, Aamo
Institute of Electrical and Electronics Engineers
14.06.2023

K. Rasilainen et al., "OTA Measurement Technique for Sub-THz Integrated Lens Antennas," 2023 100th ARFTG Microwave Measurement Conference (ARFTG), Las Vegas, NV, USA, 2023, pp. 1-4, doi: 10.1109/ARFTG56062.2023.10148886.

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doi:https://doi.org/10.1109/arftg56062.2023.10148886
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Abstract

Moving to sub-THz frequencies introduces new challenges for wireless communications systems in terms of design, implementation, and testing. This paper presents a measurement technique for over-the-air (OTA) characterisation of sub-THz antennas at WR3.4 band (220‐330 GHz), and a silicon (Si) lens fed by an on-chip antenna is used as a test vehicle. In the proposed measurement technique, the received sub-THz AM-modulated test signal is downconverted to kHz-range using a square-law power detector. Measurements and simulations/calculations are used to compare several key antenna/link parameters. Agreement between the results is good, which shows that the proposed technique provides a good and less hardware-intensive alternative for sub-THz antenna measurements.

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