{'fraction_non_alphanumeric': 0.03235294117647059, 'fraction_numerical': 0.0014705882352941176, 'mean_word_length': 4.973684210526316, '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}}
An S-Band Image Rejection Receiver Front-End Incorporating GaAs MMICs

An S-band image rejection receiver front-end has been designed, using GaAs MMICs to provide all the necessary functions up to, and including, the mixers. The receiver system incorporates the following GaAs MMICs: lownoise amplifier, in-phase signal splitter, quadrature local oscillator splitter, passive routing chip and dual-channel mixer. The mixer chip is novel in that a single-gate FET is used in conjunction with a passive 3 dB RF/LO-combiner. The design and performance of these circuits are discussed in the paper, together with measured results for complete receiver front-ends using these circuits.