Experimental Study of Microwave Attenuation in a Compartment Fire

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, urethane foam as fuels, which can be easily found homes, measured signal intensity with three antenna heights to investigate effect flame smoke. environment, ionized particles were dominant factor signals. Furthermore, measurements revealed that depends on fuel types. particular, large was observed at particular when burning lumber foam.