Patch Antenna Miniaturization Technique for BioMedical Implant

This work mainly concentrates on designing a simple patch antenna with the required miniaturization to deploy it as a biomedical implant. Techniques such as using a substrate with high dielectric constant, introducing shorting pin and slot are integrated. The combined results of those techniques were studied and analyzed to arrive at the optimal antenna that is resonating properly in Med Radio band at the frequency of 404 MHz with the gain of -33 dB. The resonant frequency of antenna with shorting pin is also verified theoretically using formulas. Impact of surface current in creating the slot, for an antenna with shorting pin is also studied and presented. Designed antenna is resonating at 404 MHz with S11 of -20dB.