Analysis of Planar Antennas for Medical Applications at 435 MHz, 915 MHz and 2.45 GHz ISM Bands
ISM Bands, Medical Applications, Planar Antennas, Microstrip Antennas.
Wireless devices are presented in the latest research works as alternatives for monitoring several medical parameters, with applications in the frequency bands designated for Medical Device Radiocommunications Service - MedRadio (401 - 405 MHz), Medical Implant Communication Services - MICS (402 - 405 MHz) and Industrial, Scientific and Medical - ISM (433 - 435.8 MHz; 2.4 - 2.5 GHz). This master thesis presents a frequency response analysis of planar microstrip antennas with medical applications in the ISM band for the three frequency bands (433 - 435.8 MHz; 902 - 928 MHz; 2.4 - 2.5 GHz). Three rectangular slotted antennas are designed with the slots placed near the edges of the patch. Simulation results were obtained by Ansoft HFSS software for resonance frequency, bandwidth and reflection coefficient. Measurements were performed with solid samples of pork. The simulated and measured results showed excellent agreement.