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85-to-127 GHz CMOS Transmitter for Rotational Spectroscopy
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Cited 15 time in Scopus
- Authors
- Issue Date
- 2014
- Publisher
- IEEE
- Citation
- 2014 IEEE PROCEEDINGS OF THE CUSTOM INTEGRATED CIRCUITS CONFERENCE (CICC)
- Abstract
- A transmitter for rotational spectroscopy using a fractional-N PLL (FNPLL) that generates frequency shift keyed signals from 85 to 127 GHz (39% tuning range) with a fine frequency step of similar to 570 Hz and settling time of similar to 10 mu S is demonstrated. Implemented in 65-nm CMOS, the FNPLL delivers greater than 5 mu W of output power, and achieves measured phase noise of less than -70 dBc/Hz in-band and less than -102 dBc/Hz at 10-MHz offset over the output frequency range while consuming 80 mW. The transmitter output is radiated using a bond-wire antenna and successfully utilized in a spectrometer for detection of gas molecules.
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Related Researcher
- College of Engineering
- Department of Electrical and Computer Engineering
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