Reconfigurable Intelligent Surfaces for OTA Testing: Optimization and Initial Results
Paper i proceeding, 2023

We discuss a new application of RIS for Over-The-Air (OTA) testing of antenna systems and wireless devices, particularly as a cost-effective alternative to millimeter-wave phased-array plane wave generators (PWGs). We present a general approach for the fast modeling and design of the RIS-based PWG. This includes an optimal beamforming algorithm for a RIS and a strategy for configuring the RIS unit cells (UCs) to emulate far-field conditions in the test zone (TZ) with a controllable angle of arrival (AoA) of the incoming plane wave. The proposed approach has been used to derive requirements for a UC of the 21x21 element RIS-based PWG. Our preliminary numerical results demonstrate that the RIS-based PWG allows for synthesizing a TZ with a high-quality plane wave spectrum, where the peak-to-peak variation in field magnitude remains below 0.7 dB, while phase fluctuations do not exceed 5 deg within the range of AoA from -7 deg to 7 deg.

OTA

plane wave generator

antenna measurements

Reconfigurable intelligent surface

Författare

Oleg Iupikov

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

Artem Vilenskiy

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

Yuqing Zhu

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

Pavlo Krasov

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

Marianna Ivashina

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

IEEE Conference on Antenna Measurements and Applications, CAMA

24741760 (ISSN) 26436795 (eISSN)

846-851
9798350323047 (ISBN)

2023 IEEE Conference on Antenna Measurements and Applications, CAMA 2023
Genoa, Italy,

Ämneskategorier

Telekommunikation

Kommunikationssystem

Signalbehandling

DOI

10.1109/CAMA57522.2023.10352847

Mer information

Senast uppdaterat

2024-01-24