Indoor Propagation Measurements with Sekisui Transparent Reflectors at 28/39/120/144 GHz

Chethan K. Anjinappa; Ashwini P. Ganesh; Ozgur Ozdemir; Kris Ridenour; Wahab Khawaja; Ismail Guvenc; Hiroyuki Nomoto; Yasuaki Ide

arXiv · 2203.08116

Indoor Propagation Measurements with Sekisui Transparent Reflectors at 28/39/120/144 GHz

Chethan K. Anjinappa·Ashwini P. Ganesh·Ozgur Ozdemir·Kris Ridenour·Wahab Khawaja·Ismail Guvenc·Hiroyuki Nomoto·Yasuaki Ide

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Abstract

One of the critical challenges of operating with the terahertz or millimeter-wave wireless networks is the necessity of at least a strong non-line-of-sight (NLoS) reflected path to form a stable link. Recent studies have shown that an economical way of enhancing/improving these NLoS links is by using passive metallic reflectors that provide strong reflections. However, despite its inherent radio advantage, metals can dramatically influence the landscape's appearance - especially the indoor environment. A conceptual view of escaping this is by using transparent reflectors. In this work, for the very first time, we evaluate the wireless propagation characteristics of passive transparent reflectors in an indoor environment at 28 GHz, 39 GHz, 120 GHz, and 144 GHz bands. In particular, we investigate the penetration loss and the reflection characteristics at different frequencies and compare them against the other common indoor materials such as ceiling tile, clear glass, drywall, plywood, and metal. The measurement results suggest that the transparent reflector, apart from an obvious advantage of transparency, has a higher penetration loss than the common indoor materials (excluding metal) and performs similarly to metal in terms of reflection. Our experimental results directly translate to better reflection performance and preserving the radio waves within the environment than common indoor materials, with potential applications in controlled wireless communication.

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BibTeX RIS

Chethan K. Anjinappa, Ashwini P. Ganesh, Ozgur Ozdemir, Kris Ridenour, Wahab Khawaja, Ismail Guvenc, Hiroyuki Nomoto, Yasuaki Ide. 2022-03-15. Indoor Propagation Measurements with Sekisui Transparent Reflectors at 28/39/120/144 GHz. https://arxiv.org/abs/2203.08116

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