A Trapezoidal Ground-based Truncated Rectangular Patch Antenna for Non-Invasive Monitoring of Bone Fracture Healing

In this paper, a truncated rectangular patch antenna is designed for non-invasive monitoring of bone fracture healing. The proposed antenna is developed on the trapezoidal-shaped ground plane with a compact size of 25×25 mm
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Rogers RT droid 5880 substrates with 0.25mm thickness. The antenna is simulated, fabricated, and tested by simulating a phantom model. The proposed antenna resonates at 4.8 GHz. The antenna characteristics show S11 of -45 dB, measured 10 dB impedance bandwidth of 1.2 GHz (4.4-5.6 GHz), shifted results at 3.9 GHz in the presence of phantom, and measured maximum gain of 3.4 dBi. For non-invasive monitoring of bone fracture healing, the proposed antenna shows an average linear sensitivity of 4 MHz/εr.