Experimental Study of Microwave Attenuation in a Compartment Fire
| Autor: | Junho Jin, Kang Bok Lee, Sang Gi Hong, Hakjune Lee, Hyesun Lee, Hoe-Sung Yang |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
QC501-766
ionized particle Radiation Materials science Computer Networks and Communications Attenuation ash particle TK1-9971 Electricity and magnetism propagation Biophysics Electrical engineering. Electronics. Nuclear engineering Electrical and Electronic Engineering Compartment (pharmacokinetics) Instrumentation attenuation plasma Microwave |
| Zdroj: | Journal of Electromagnetic Engineering and Science, Vol 21, Iss 3, Pp 249-251 (2021) |
| ISSN: | 2671-7263 2671-7255 |
| DOI: | 10.26866/jees.2021.3.l.2 |
| Popis: | In this letter, we show the experimental results of microwave attenuation characteristics for representative communication frequencies (UHF, public safety long-term evolution [PSLTE], LoRa, Wi-Fi, and LTE) in a compartment fire. We used kerosene, lumber, and urethane foam as fuels, which can be easily found in homes, and measured the signal intensity with three antenna heights to investigate the effect of the flame and smoke. In the compartment environment, the ionized particles were the dominant attenuation factor of the signals. Furthermore, measurements revealed that the attenuation depends on frequencies and fuel types. In particular, large attenuation was observed at particular frequencies when burning lumber and urethane foam. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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