Active reconfigurable intelligent surface for the millimeter-wave frequency band: Design and measurement results

Hamed Radpour (Autor:in und Vortragende:r), Markus Hofer, Lukas Walter Mayer, Andreas Hofmann, Martin Schiefer, Thomas Zemen

Publikation: Beitrag in Buch oder TagungsbandVortrag mit Beitrag in TagungsbandBegutachtung

Abstract

Reconfigurable intelligent surfaces (RISs) will play
a key role to establish reliable low-latency millimeter wave
(mmWave) communication links for indoor automation and
control applications. In case of a blocked line-of-sight between
the base station (BS) and the user equipment (UE), a RIS
mounted on a wall or on a ceiling enables a bypass for the
radio communication link. In this work, we present an active
RIS for the mmWave frequency band. Each RIS element uses a
field effect transistor (FET) to amplify the reflected signal and an
orthogonal polarization transformation to increase the isolation
between impinging and reflected radio wave. By switching the
bias voltage at gate and drain of the FET we can establish four
states for each RIS element: two reflection states with different
phase shifts, an active amplification and an off state. We present
results of the active RIS with 37 patch antenna elements arranged
in a hexagonal grid for a center frequency of 25.8 GHz. The RIS
field patterns obtained by numerical simulations and by empirical
measurements in an anechoic chamber are compared. They show
a good match and the received power is improved by 12 dB in
the active mode of the RIS compared to the reflective mode.
OriginalspracheEnglisch
TitelIEEE Wireless Communications and Networking Conference (WCNC)
ErscheinungsortDubai, UAE
Seitenumfang6
ISBN (elektronisch)979-8-3503-0358-2
DOIs
PublikationsstatusVeröffentlicht - 1 Apr. 2024
Veranstaltung IEEE Wireless Communications and Networking Conference 2024 - Dubai, Dubai, Vereinigte Arabische Emirate
Dauer: 21 Apr. 202424 Apr. 2024

Konferenz

Konferenz IEEE Wireless Communications and Networking Conference 2024
KurztitelIEEE WCNC 2024
Land/GebietVereinigte Arabische Emirate
StadtDubai
Zeitraum21/04/2424/04/24

Research Field

  • Enabling Digital Technologies

Fingerprint

Untersuchen Sie die Forschungsthemen von „Active reconfigurable intelligent surface for the millimeter-wave frequency band: Design and measurement results“. Zusammen bilden sie einen einzigartigen Fingerprint.

Diese Publikation zitieren