Dual-Polarized Probe for Planar Near-Field Measurement

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Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2023-03
Major/Subject
Mcode
Degree programme
Language
en
Pages
5
Series
IEEE Antennas and Wireless Propagation Letters, Volume 22, issue 3, pp. 576-580
Abstract
A dual-polarized probe enables the simultaneous sampling of two orthogonal polarizations which decreases the time for the characterization of co- and cross-polar properties of the antenna under test in transmission mode by 50%. In this work, a dual-polarized probe comprising of a square waveguide and grating polarizer based orthomode transducer is presented. The Ku-band dual-polarized probe is manufactured in-house using additive manufacturing and coated with conductive paint. The simulated and measured —10-dB impedance bandwidth is between 10.7-14.5 GHz. The peak simulated and measured coupling between the orthogonal polarizations is less than —60 dB and —40 dB, respectively.
Description
Publisher Copyright: Author
Keywords
3D-printing, Antenna measurements, Bandwidth, conductive paint, Couplings, dual-polarized, Gratings, near-field, orthomode transducer, probe, Probes, Reflection coefficient, square waveguide, Transducers
Other note
Citation
Karki, S K, Ala-Laurinaho, J & Viikari, V 2023, ' Dual-Polarized Probe for Planar Near-Field Measurement ', IEEE Antennas and Wireless Propagation Letters, vol. 22, no. 3, pp. 576-580 . https://doi.org/10.1109/LAWP.2022.3218731