{'fraction_non_alphanumeric': 0.011111111111111112, 'fraction_numerical': 0.006349206349206349, 'mean_word_length': 5.247524752475248, '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}}
Importance of the absolute electrical length of the outphasing combiner in LINC amplification systems

This paper reports an experiment based study of a LINC transmitter system consisting of two saturated class B LDMOS power amplifiers and three different outphasing power combining structures. The measurement results showed that the absolute electrical length of the two arms of the outphasing combiner is a critical parameter in designing a LINC system. A peak power, efficiency of 61% was measured and an average of 10% improvement in system efficiency was obtained at back off region when using the adequate Chireix-combiner.