56-Gbit/s 16-QAM wireless link with 300-GHz-band CMOS transmitter

The 300-GHz band enables ultrahigh-speed wireless communication because of its vast frequency range. We present a wireless link with a 300-GHz-band CMOS transmitter that improves the system signal-to-noise ratio (SNR) by using a frequency-doubler-based subharmonic mixer called a “square mixer” and an architecture with image and local oscillator (LO) suppression. It achieved wireless digital transmission at 56 Gbit/s over 5 cm with 16-QAM. In addition, we compare the performance of wireless links using a figure-of-merit (FoM). This wireless link has an approximately 7.5 times higher FoM than a recently reported wireless link based on a CMOS transmitter.

[1]  D. Meier,et al.  Ultra-broadband MMIC-based wireless link at 240 GHz enabled by 64GS/s DAC , 2014, 2014 39th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz).

[2]  Emilien Peytavit,et al.  Ultrawide-Bandwidth Single-Channel 0.4-THz Wireless Link Combining Broadband Quasi-Optic Photomixer and Coherent Detection , 2014, IEEE Transactions on Terahertz Science and Technology.

[3]  Tadao Nagatsuma,et al.  Real-time 100-Gbit/s QPSK transmission using photonics-based 300-GHz-band wireless link , 2016, 2016 IEEE International Topical Meeting on Microwave Photonics (MWP).

[4]  Minoru Fujishima,et al.  Integrated-Circuit Approaches to THz Communications: Challenges, Advances, and Future Prospects , 2017, IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences.

[5]  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.

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

[7]  Ingmar KALLFASS,et al.  Special Section on Terahertz Waves Coming to the Real World Towards MMIC-Based 300 GHz Indoor Wireless Communication Systems , 2015 .

[8]  Cheng Wang,et al.  0.34-THz Wireless Link Based on High-Order Modulation for Future Wireless Local Area Network Applications , 2014, IEEE Transactions on Terahertz Science and Technology.

[9]  Jun Terada,et al.  Terahertz wireless communications based on photonics technologies. , 2013, Optics express.

[10]  Tadao Nagatsuma,et al.  300-GHz-band wireless transmission at 50 Gbit/s over 100 meters , 2016, 2016 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz).

[11]  Tadao Nagatsuma,et al.  24 Gbit/s data transmission in 300 GHz band for future terahertz communications , 2012 .

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

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

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

[15]  G. Ducournau,et al.  32 Gbit/s QPSK transmission at 385 GHz using coherent fibre-optic technologies and THz double heterodyne detection , 2015 .

[16]  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).