{'fraction_non_alphanumeric': 0.01195219123505976, 'fraction_numerical': 0.0, 'mean_word_length': 5.134146341463414, '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}}
Coupler design method based on stripline frequency scanning antenna

In this paper, based on the analysis of the loss of three kinds of transmission lines, a frequency scanning antenna using stripline as transmission line is proposed, and a design method is proposed for the coupler structure which is the key point in this antenna design. Based on this design method, the corresponding coupler can be designed flexibly and quickly according to the impedance and coupling coefficient required by ports.