{'fraction_non_alphanumeric': 0.01730769230769231, 'fraction_numerical': 0.019230769230769232, 'mean_word_length': 4.988505747126437, '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}}
Antennas with Nature-inspired Geometries for Bluetooth Applications

Some miniature antennas designed by using nature-inspired techniques are presented in this paper. Genetic algorithms and fractal boundaries have been used to design planer antennas on a generator patch with a size of 25 × 25 mm2. They were fed by a coaxial cable with impedance of 50 Ω connected through a thin small substrate with relative permittivity of 3.38. The geometries, resonant behaviour and radiation patterns of the antennas were analyzed.