An embedded IoT antenna for smart pavement monitoring system

To support the design of compact IoT devices, a general procedure for developing IoT antennas will be illustrated in this work. The design steps are based on the study of an embedded antenna used in a smart pavement monitoring system which has been introduced to monitor pavement conditions and make plans for road rehabilitation. In order to overcome the drawbacks of traditional patch antennas used in road pavement, a ground plane serration technique has been studied and applied to the proposed antenna to improve its performance. Simulation and measurement results show that with serrations on the ground plane, the proposed antenna is able provide broadside gain of 3.4 dB through asphalt pavement