期刊
INTERNET OF THINGS: TECHNOLOGY AND APPLICATIONS
卷 641, 期 -, 页码 86-95出版社
SPRINGER INTERNATIONAL PUBLISHING AG
DOI: 10.1007/978-3-030-96466-5_6
关键词
Sensor node; Patch antenna; Grassland; Wildfire
类别
资金
- FCT under the project WSN-EM [PTDC/EEI-EEE/30539/2017]
- FCT/MCTES [UID/EEA/50008/2021]
- FCT under the project RESCuE-TOOL [PCIF/SSI/0194/2017]
This paper studies the impact of vegetation and fire on the radiation pattern of a small antenna for a WSN sensor node. Simulations were conducted in four different scenarios to analyze the effects of these factors.
In this paper, the impact of vegetation and fire on the radiation pattern of a small antenna to be used in a WSN sensor node, is studied. The proposed antenna used in this study is based on a differential patch design, tuned to operate in the 2.4 GHz frequency band. The antenna presents a reduced size of 45 x 45 mm(2) (0.36 lambda x 0.36 lambda). The simulations were carried using a full-wave EM solver (CST MWS) considering four different scenarios: the first scenario only containing the antenna placed on the ground to serve as reference; in the second scenario vegetation was introduced to serve as the normal state of the terrain surrounding the sensor node; the third scenario includes the impact of surrounding fire considering the permittivity expected during such an event; and the last simulation was performed to include all the previous components simultaneously.
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