One-Port Planar Near-Field Antenna Measurement and Corresponding Scatterer Compensation Method

Autor:	Seunggyu Yang, Kangwook Kim
Jazyk:	angličtina
Rok vydání:	2022
Předmět:	antenna measurements near-field to far-field transformation reciprocity principle Electrical engineering. Electronics. Nuclear engineering TK1-9971 Electricity and magnetism QC501-766
Zdroj:	Journal of Electromagnetic Engineering and Science, Vol 22, Iss 3, Pp 344-351 (2022)
Druh dokumentu:	article
ISSN:	2671-7255 2671-7263
DOI:	10.26866/jees.2022.3.r.96
Popis:	A one-port near-field antenna measurement technique with a small wire scatterer is proposed. In the proposed technique, a wire scatterer is scanned with an interval of less than a quarter wavelength, and the measurement is performed at the port of the antenna under test (AUT). A two-dimensional phase unwrapping method is used to remove 180° phase uncertainty. The data obtained in the near-field are transformed to the far-field pattern, and the scattering pattern is compensated for better measurements. The proposed measurement technique was validated by measuring the near-field of an AUT over a planar scanning surface. The far-field radiation pattern obtained using the proposed technique was compared with that obtained from a conventional commercial anechoic chamber. It was observed that they agreed well, especially in the region near the center.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/86d2145fead7422f9b8ed9db978ef03e Zobrazit plný text záznamu View record in DOAJ