Rancang Bangun Wearable Microstrip Patch Antenna untuk Aplikasi Body Area Network pada Band Frekuensi Industrial, Scientific, and Medical

Abstract

Wireless body area network (WBAN) is is the wireless network device that can be used by human body, where wireless communication for wearable technology was regulated by the IEEE 802.15.6. One of the communication devices is wearable antenna. a part of transmitter and receiver in wireless communication for wearable technology, wearable antennas should be designed to be comfortable, light, maintenance free, and cheap to implement. Beside that, wearable antennas must be following safety standards for the human body to absorb the radiation. In this research, the wearable antenna implemented using a microstrip patch antenna in 2.4 GHz, which the frequency is a band application of industrial, scientific, and medical frequency (ISM Frequency). The wearable microstrip patch antenna fabricated using copper fabric with a thickness of 0.06 mm which composed of pure copper and polyester materials, and a felt fabric substrate with dielectric constant of 2.4. The prototype of wearable antenna designed the patch antenna size of 39 mm. Following the measurements using a vector network analyzer (VNA), the wearable antenna has resonance in return loss -12.95 dB and VSWR of 1.79 in 2.43 GHz frequency. Wearable microstrip patch antenna also measured to human body towards skin surface and clothing surface and the measured result showed wearable antenna meets the requirement of resonance in return loss < -10 dB.