{'fraction_non_alphanumeric': 0.01904761904761905, 'fraction_numerical': 0.0, 'mean_word_length': 5.921052631578948, '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}}
Foam based light weight cavity-backed slot antenna for unidirectional wireless system applications

A light weight low profile foam based cavity-backed slot antenna is proposed for UHF/VHF applications. The proposed antenna structure is successfully optimized and constructed. Comparing with conventional design, the proposed structure may provide a much lighter and cheaper solution, making it attractive for digital television broadcasting, airborne and other UHF/VHF wireless applications to meet challenging requirements.