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Efficient Linear Millimeter-Wave Distributed Transceivers in CMOS SOI.

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Title: Efficient Linear Millimeter-Wave Distributed Transceivers in CMOS SOI.
Authors: Fang, Kelvin (AUTHOR), Buckwalter, James F. (AUTHOR)
Source: IEEE Transactions on Microwave Theory & Techniques. Jan2019, Vol. 67 Issue 1, p295-307. 13p.
Subjects: Complementary metal oxide semiconductors, Distributed amplifiers, Millimeter wave devices, Silicon-on-insulator technology, Time-domain analysis, Highpass electric filters
Abstract: Two $K_{u}$ - to V-band distributed amplifiers (DAs) based on nMOS and nMOS/pMOS gain stages and a distributed transceiver front end (DTFE) are presented for ultra-wideband power and low-noise amplification in a 45-nm RF CMOS silicon-on-insulator (SOI) technology. Supply scaling of gain stages through high-pass filter sections achieves high efficiency while maintaining a broadband 50- $\Omega $ match. The nMOS DA has a gain of 13 dB over a 3-dB bandwidth of 10–82 GHz and a minimum noise figure (NF) of 5.3 dB. The measured peak output power is 17.2 dBm with a peak power-added efficiency (PAE) of 17.4% at 50 GHz. The hybrid DA allows higher operating voltage and distortion cancelation of scaled pMOS devices to an achieve output power of 17.5 dBm with PAE of 20.2% and low third-order intermodulation and amplitude–phase nonlinearities. The DTFE utilizes time-domain duplexing to drive a shared antenna port for transmit (TX) and receive (RX) modes. It achieves TX gain of 11.7 dB from 12–76 GHz with peak output power of 17 dBm and PAE of 14.2%. RX gain is 9 dB from 11–77 GHz with a minimum NF of 6.2 dB. The 5-GHz wideband 16-QAM is demonstrated in the amplifier circuits for data rates exceeding 20 Gb/s. [ABSTRACT FROM AUTHOR]
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Abstract:Two $K_{u}$ - to V-band distributed amplifiers (DAs) based on nMOS and nMOS/pMOS gain stages and a distributed transceiver front end (DTFE) are presented for ultra-wideband power and low-noise amplification in a 45-nm RF CMOS silicon-on-insulator (SOI) technology. Supply scaling of gain stages through high-pass filter sections achieves high efficiency while maintaining a broadband 50- $\Omega $ match. The nMOS DA has a gain of 13 dB over a 3-dB bandwidth of 10–82 GHz and a minimum noise figure (NF) of 5.3 dB. The measured peak output power is 17.2 dBm with a peak power-added efficiency (PAE) of 17.4% at 50 GHz. The hybrid DA allows higher operating voltage and distortion cancelation of scaled pMOS devices to an achieve output power of 17.5 dBm with PAE of 20.2% and low third-order intermodulation and amplitude–phase nonlinearities. The DTFE utilizes time-domain duplexing to drive a shared antenna port for transmit (TX) and receive (RX) modes. It achieves TX gain of 11.7 dB from 12–76 GHz with peak output power of 17 dBm and PAE of 14.2%. RX gain is 9 dB from 11–77 GHz with a minimum NF of 6.2 dB. The 5-GHz wideband 16-QAM is demonstrated in the amplifier circuits for data rates exceeding 20 Gb/s. [ABSTRACT FROM AUTHOR]
ISSN:00189480
DOI:10.1109/TMTT.2018.2875981