{'fraction_non_alphanumeric': 0.05660377358490566, 'fraction_numerical': 0.03234501347708895, 'mean_word_length': 4.544776119402985, '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 direct-conversion RF transmitter for 4G LTE applications

In this paper, a 2.6 GHz direct-conversion radio frequency (RF) transmitter module is implemented using application-specific integrated circuits based on a link budget for fourth generation (4G) long term evolution (LTE) applications. It consists of a modulator, a bandpass filter (BPF), and a power amplifier (PA). The power consumption of the RF transmitter is 1.8 W. The measurements of the RF transmitter are made, revealing that a gain is 52.15 dB, a single sideband (SSB) output power is 25.15 dBm, a local oscillator (LO) leakage is -32.1 dBc, a sideband suppression is 54.47 dB, and the error vector magnitude (EVM) of a quadrature phase shift keying (QPSK) signal is 2.66%.