This paper demonstrates the performance of a potential design of a paper substrate-based\nflexible antenna for intrabody telemedicine systems in the 2.4 GHz industrial, scientific, and medical\nradio (ISM) bands. The antenna was fabricated using 0.54 mm thick flexible photo paper and\n0.03 mm copper strips as radiating elements. Design and performance analyses of the antenna were\nperformed using Computer Simulation Technology (CST) Microwave Studio software. The antenna\nperformances were investigated based on the reflection coefficient in normal and bent conditions.\nThe total dimensions of the proposed antenna are 40 Ã? 35 Ã? 0.6 mm3. The antenna operates at\n2.33-2.53 GHz in the normal condition. More than an 8% fractional bandwidth is expressed by\nthe antenna. Computational analysis was performed at different flexible curvatures by bending\nthe antenna. The minimum fractional bandwidth deviation is 5.04% and the maximum is 24.97%.\nMoreover, it was mounted on a homogeneous phantom muscle and a four-layer human tissue\nphantom. Up to a 70% radiation efficiency with a 2 dB gain was achieved by the antenna. Finally,\nthe performance of the antenna with a homogeneous phantom muscle was measured and found\nreliable for wearable telemedicine applications.
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