Dual-Polarized Probe for Planar Near-Field Measurement

被引：1

作者：

Karki, Sabin Kumar ^{[1
]}

Ala-Laurinaho, Juha ^{[1
]}

Viikari, Ville ^{[1
]}

机构：

[1] Aalto Univ, Dept Elect & Nanoengn, FI-0076 Espoo, Finland

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2023年 / 22卷 / 03期

关键词：

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

D O I：

10.1109/LAWP.2022.3218731

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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 and 14.5 GHz. The peak simulated and measured coupling between the orthogonal polarizations is less than -60 dB and -40 dB, respectively.

引用

页码：576 / 580

页数：5

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