@inproceedings{7b29ab86923549d3b54d38c146d0a709,
title = "A V-band Four-Channel Phased Array Transmitter Beamforming IC With 0.7-Degree Phase Step in 20 dB Dynamic Range",
abstract = "This paper presents a V-band 4-channel transmitter beamforming IC fabricated in 28-nm CMOS process, which includes power amplifiers (PA), active vector modulators, and power dividers. The PA is linearized by a cold-FET controlled coupled inductor, improving the AM-AM and AM-PM. The vector modulator consists of a summing amplifier that combines I and Q vectors to determine the amplitude and phase of a synthesized signal, along with an active I/Q generator. The nonlinearity of the vector summing amplifier is overcome by introducing a CLC network of a 45° phase shifter. It shows the 0.1 dB RMS gain and 2° RMS phase error at 60 GHz, with 3-bit gain and 9-bit phase control. An OP1dB of 10.8 dBm and a peak gain of 14.3 dB are achieved in the 3-dB frequency bandwidth of 57 GHz to 63.3 GHz. The chin area is 4.4 mm2, and the power consumption is 295 mW.",
keywords = "active R-L poly-phase filter, CLC network, CMOS, cold-FET, coupled inductor, linearizer, Millimeter-wave (mm-wave), phased-array, transmitter, V-band",
author = "Cheol So and Sung, \{Eun Taek\} and Songcheol Hong",
note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 2023 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2023 ; Conference date: 11-06-2023 Through 13-06-2023",
year = "2023",
doi = "10.1109/RFIC54547.2023.10186121",
language = "English",
series = "Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "41--44",
editor = "Jennifer Kitchen and Steven Turner",
booktitle = "2023 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2023",
address = "United States",
}