{'fraction_non_alphanumeric': 0.020833333333333332, 'fraction_numerical': 0.0, 'mean_word_length': 4.481012658227848, '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}}
Tuning of Hydrogen Maser Cavity by Means of a Variable Capacitance Diode

Details are given on a method of tuning a hydrogen maser cavity by means of a variable capacitance diode placed in a loop directly inside the cavity. The design of the loop-in which the varactor is placed, the loop connection to an external dc bias, and a theoretical analysis of the whole loop system (cavity, tuning loop, and coupling loop) are also given.