Rectangular Concentric Strip Antenna for IoT Applications

A rectangular concentric strip antenna designed for Internet of Things (IoT) applications operating in the 867 MHz frequency band is detailed in this paper. Antenna plays a major role in IoT applications as they enable wireless communication between devices. The size of the designed antenna is 15 x 15 x 0.8 mm
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in FR4 substrate which is very compact Within the designated frequency band, the proposed antenna has a reflection coefficient of -38 dBi with bandwidth 6 MHz. This work also covers the frequency spectrum allocated for Internet of Things devices, achieving a good S
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parameter at the centre frequency of 867 MHz.