A 32Gbit/s 16QAM CMOS receiver in 300GHz band

Building receivers (RXs) that operate above the transistor unity-power-gain frequency, fmax, is extremely challenging because an LNA-less architecture must be adopted. This paper reports on a 300-GHz CMOS RX operating above NMOS /max. Its conversion gain, noise figure, and 3-dB bandwidth are, respectively, −19.5 dB, 27 dB, and 26.5 GHz. The RX achieved a wireless data rate of 32 Gb/s with 16QAM. It shows the potential of moderate-/fmax CMOS technology to be used for ultrahigh-speed THz wireless communications.

[1]  Keysight Technologies High-Accuracy Noise Figure Measurements Using the PNA-X Series Network Analyzer , 2013 .

[2]  Axel Tessmann,et al.  64 Gbit/s Transmission over 850 m Fixed Wireless Link at 240 GHz Carrier Frequency , 2015 .

[3]  Rolf H Jansen,et al.  RF Characterization of Schottky Diodes in 65-nm CMOS , 2010, IEEE Transactions on Electron Devices.

[4]  Minoru Fujishima,et al.  Integrated-Circuit Approaches to THz Communications: Challenges, Advances, and Future Prospects , 2017, IEICE Trans. Fundam. Electron. Commun. Comput. Sci..

[5]  Kosuke Katayama,et al.  Wireless digital data transmission from a 300 GHz CMOS transmitter , 2016 .

[6]  Ali M. Niknejad,et al.  A 240 GHz Fully Integrated Wideband QPSK Receiver in 65 nm CMOS , 2015, IEEE Journal of Solid-State Circuits.

[7]  Minoru Fujishima.  Channel allocation of 300GHz band for fiber-optic-speed wireless communication , 2016, 2016 URSI Asia-Pacific Radio Science Conference (URSI AP-RASC).

[8]  Janusz Grzyb,et al.  A Fully Integrated 240-GHz Direct-Conversion Quadrature Transmitter and Receiver Chipset in SiGe Technology , 2016, IEEE Transactions on Microwave Theory and Techniques.

[9]  Kosuke Katayama,et al.  20.1 A 300GHz 40nm CMOS transmitter with 32-QAM 17.5Gb/s/ch capability over 6 channels , 2016, 2016 IEEE International Solid-State Circuits Conference (ISSCC).

[10]  Kosuke Katayama,et al.  17.9 A 105Gb/s 300GHz CMOS transmitter , 2017, 2017 IEEE International Solid-State Circuits Conference (ISSCC).

[11]  U. R. Pfeiffer,et al.  Subharmonic 220- and 320-GHz SiGe HBT Receiver Front-Ends , 2012, IEEE Transactions on Microwave Theory and Techniques.

[12]  Kosuke Katayama,et al.  A 300 GHz CMOS Transmitter With 32-QAM 17.5 Gb/s/ch Capability Over Six Channels , 2016, IEEE Journal of Solid-State Circuits.

[13]  D. Shim.  Self-biased anti-parallel diode pair in 130-nm CMOS , 2016 .