Compact BLE Antenna With a Modified PIFA Configuration for Wearable EMG Monitor

نویسندگان

چکیده

An antenna mounted underneath the top cover of a wearable device, fed by an ultralow-profile connector, is proposed for Bluetooth-low-energy (BLE) communication at 2.4 GHz. As to be used it essential that should compact in size and tolerant against nearby medium change. The modified planar inverted-F (PIFA) we propose consists main patch parasitic element broaden bandwidth. end shorted miniaturize $25\times10.8$ mm, fitting well inside watch-type device. Also, complete ground layer makes radiate outward direction, minimally interact with back-side medium. This results reflection coefficient being insensitive change on backside. has peak gain 3.62 dBi along 20% efficiency impedance bandwidth 80 MHz (2.4–2.48 GHz). To examine communicative operation practice, received signal strength indicator (RSSI) prototype device measured various postures orientations, demonstrating reliable connectivity within typical indoor distance 10 m. Lastly, embedded electromyography’s wireless monitoring.

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ژورنال

عنوان ژورنال: IEEE Sensors Journal

سال: 2023

ISSN: ['1558-1748', '1530-437X']

DOI: https://doi.org/10.1109/jsen.2023.3282965