Dual-Polarized Probe for Planar Near-Field Measurement

Sabin Kumar Karki; Juha Ala-Laurinaho; Ville Viikari

doi:10.1109/LAWP.2022.3218731

Dual-Polarized Probe for Planar Near-Field Measurement

Sabin Kumar Karki, Juha Ala-Laurinaho, Ville Viikari

Research output: Contribution to journal › Article › Scientific › peer-review

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.

Original language	English
Pages (from-to)	1-5
Number of pages	5
Journal	IEEE Antennas and Wireless Propagation Letters
DOIs	https://doi.org/10.1109/LAWP.2022.3218731
Publication status	E-pub ahead of print - 2022
MoE publication type	A1 Journal article-refereed

Keywords

3D-printing
Antenna measurements
Bandwidth
conductive paint
Couplings
dual-polarized
Gratings
near-field
orthomode transducer
probe
Probes
Reflection coefficient
square waveguide
Transducers

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10.1109/LAWP.2022.3218731Licence: CC BY

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title = "Dual-Polarized Probe for Planar Near-Field Measurement",

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.",

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author = "Karki, {Sabin Kumar} and Juha Ala-Laurinaho and Ville Viikari",

note = "Publisher Copyright: Author",

year = "2022",

doi = "10.1109/LAWP.2022.3218731",

language = "English",

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journal = "IEEE Antennas and Wireless Propagation Letters ",

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AU - Karki, Sabin Kumar

AU - Ala-Laurinaho, Juha

AU - Viikari, Ville

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PY - 2022

Y1 - 2022

N2 - 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.

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KW - 3D-printing

KW - Antenna measurements

KW - Bandwidth

KW - conductive paint

KW - Couplings

KW - dual-polarized

KW - Gratings

KW - near-field

KW - orthomode transducer

KW - probe

KW - Probes

KW - Reflection coefficient

KW - square waveguide

KW - Transducers

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DO - 10.1109/LAWP.2022.3218731

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JO - IEEE Antennas and Wireless Propagation Letters

JF - IEEE Antennas and Wireless Propagation Letters

SN - 1536-1225

ER -

Dual-Polarized Probe for Planar Near-Field Measurement

Abstract

Keywords

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RF Sampo/T40410 Viikari

RF Sampo: Kumppanuusmalli – RF Sampo Aalto yliopisto

Cite this

Dual-Polarized Probe for Planar Near-Field Measurement

Abstract

Keywords

Access to Document

OpenUrl availability

Other files and links

Fingerprint

Projects

RF Sampo/T40410 Viikari

RF Sampo: Kumppanuusmalli – RF Sampo Aalto yliopisto

Cite this