{'fraction_non_alphanumeric': 0.03508771929824561, 'fraction_numerical': 0.022941970310391364, 'mean_word_length': 4.66412213740458, '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}}
A High Precision/High Isolation Planar MM-Wave PSK/AM Modulator

A new approach to broadband mm-wave binary PSK/AM modulators is proposed using a double balanced configuration of 4 PIN diodes in a waveguide-coupled stripline circuit. The transition from two in-line orthogonal waveguides to four single-ended 180° reflection modulators is realized as a planar power divider/combiner structure in a plane transverse to the waveguide axis. Three states are available: 0°/180° transmission and an isolated state. The design allows individual matching and biasing of the diodes. The phase error is less then ±2°, amplitude imbalance below 0.3 dB. More than 30 dB isolation and 15 dB reflection loss are maintained over a 25% bandwidth in W-band.