{'fraction_non_alphanumeric': 0.016885553470919325, 'fraction_numerical': 0.0, 'mean_word_length': 5.592592592592593, '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 loss reduction in bent rectangular dielectric waveguides with three dielectric layers

Radiation losses due to the curvature in rectangular dielectric waveguides with a step index of refraction profile in its upper and lower faces are examined here. Expressions are obtained for the propagation constants along the x and y directions of the waveguide, for the conversion coefficient, c, and for the attenuation coefficient, a. Appreciable radiation loss reduction, when compared with the homogeneous waveguide, is observed.