{'fraction_non_alphanumeric': 0.0178359096313912, 'fraction_numerical': 0.01070154577883472, 'mean_word_length': 5.476923076923077, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Radiation pattern of a short dipole nearby human body

In this paper, the radiation patterns of wearable antennas with effect of human-body are investigated by using efficient analytical method. According to the reciprocity theorem, the receiving patterns under incidence of different polarized plane waves are formulated, and then expanded in terms of elliptic-cylindrical waves; and employing impedance boundary condition on the surface of lossy dielectric elliptical cylinder. The demonstrated horizontal patterns of different polarizations at 915 MHz, 2.40 GHz and 5.80 GHz are given for various antenna locations. The measured data verify the calculated results from proposed analytical method, which provides accurate results with higher calculation speed, can serves as a helpful reference of antenna design for the body area network.