Transceiver design

Transceiver design

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We presented the wireless performance of a 300-GHz CMOS TX. The peak data rate reached 28 Gb/s with 16QAM. We introduced an FoM, that allows comparison of transmit-receive systems and considered how the vast frequency band around 300 GHz could be best utilized. If a CMOS technology is to be adopted, it is best to cover a very wide bandwidth (several tens of GHz) with multiple QAM channels with a reasonable per-channel data rate. This underpins the importance of QAM-capability even at 300 GHz, where very wide bandwidths are available. Superior integration capability of CMOS technology could facilitate possible eventual introduction of channel bonding.

Chapter Contents:

  • 4.1 Transmitter
  • 4.1.1 Architectural consideration [1]
  • 4.1.2 Circuit design [1]
  • Cubic mixer
  • Power splitter
  • Power combiner
  • Overall TX design
  • 4.1.3 Analysis of cubic mixer [1]
  • 4.1.4 Transmitter performance [1]
  • 4.1.5 Doubler-based transmitter [40]
  • Architecture
  • Suppression of unwanted signals
  • Double-rat-race
  • Measurement
  • 4.1.6 Transmitter module [51]
  • Structure of the 300-GHz CMOS transmitter module
  • Measurement results
  • Conclusion
  • 4.2 Receiver
  • 4.2.1 Doubler-last LO driver [45]
  • 300 GHz downconversion mixer
  • LO multiplier chain
  • Measurement results
  • 4.2.2 Tripler-last LO driver [42]
  • Measurement results
  • 4.2.3 Summary
  • 4.2.4 Receiver module [48]
  • 300-GHz CMOS receiver module
  • Measurement results
  • Conclusion
  • 4.3 One-chip transceiver [53]
  • 4.3.1 Architecture
  • 4.3.2 Transmitter mode
  • 4.3.3 Receiver mode
  • 4.3.4 Schematic
  • 4.3.5 Measurement
  • 4.4 Wireless-link evaluation [25]
  • 4.4.1 Introduction
  • 4.4.2 Wireless performance of 300-GHz CMOS transmitter
  • 4.4.3 Comparison of transmit-receive systems
  • 4.4.4 Conclusion
  • References

Inspec keywords: CMOS integrated circuits; quadrature amplitude modulation; wireless channels; millimetre wave receivers; field effect MIMIC; radio transceivers

Other keywords: 16QAM; multiple QAM channels; bit rate 28 Gbit/s; CMOS transmitter; wireless performance; transmit-receive systems; transceiver design; per-channel data rate; FoM; channel bonding; complementary metal-oxide-semiconductor TX; figure of merit; quadrature amplitude modulation; frequency 300 GHz

Subjects: Radio links and equipment; Microwave integrated circuits; CMOS integrated circuits; Modulation and coding methods

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