Performance analysis of compact E-Shaped Microstrip Patch Antenna for Wireless Body Area Network

Electronics & Communication Engineering

With the recent development of Wireless Body Area Networks (WBAN), wearable antennas have become a interesting topic for academics. WBAN makes it possible to monitor and identify physical changes in the human body and its surroundings through the integration of contemporary technology, electronics downsizing, and low-power sensor nodes inside and outside the body. Nonetheless, there are significant design issues with body worn antennas because the majority of applications require low-profile, dependable, and lightweight antennas. Wearable technology has also benefited greatly from the microstrip patch antenna. An E-shaped slotted microstrip wearable antenna is presented in this research. The substrate material is FR-4, which is 1.7 mm thick and has a relative permittivity of 4.3. The developed antenna features a decreased Specific Absorption Rate (SAR) of 0.383 W/Kg, a 224 MHz bandwidth, 4.83 dB directivity, and a return loss of -28.7 dB. Therefore, using this antenna on the body is permitted. Using CST Microwave Studio, the suggested 2.45 GHz rectangular patch antenna is designed. At 2.45 GHz, the VSWR of 1.01 is appropriate for matching impedances. The dimensions of the antenna are 21 mm x 31 mm x 1.7 mm. The developed antenna is perfect for health monitoring applications since it is flexible, small in size, and offers superior performance parameters than the current antennas.

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