Curving Effect on The Curved Trapezoid Patch for On-Wrist Power Harvesting at 2.45 GHz

A curved trapezoid patch antenna to harvest RF power at 2.45 GHz ISM band (2.4 to 2.5 GHz) for wearable on-body sensor networks. The effect of curving around a cylinder with different diameters is investigated. Gain of the proposed antenna bent around a cylinder with 5cm diameter is 6.42 dBi. 3dB beam-width of the antenna is 90 and 80 degree on YOZ and XOZ planes, respectively. Antenna structure is planar one-layer and is excited by microstrip line proper for on-body wearable systems.