A Compact CMOS 363 GHz Autodyne FMCW Radar with 57 GHz Bandwidth for Dental Imaging

Taba, Morteza Tavakoli; Naghavi, S. M. Hossein; Fayazi, Morteza; Sadeghi, Ali; Cathelin, Andreia; Afshari, Ehsan

doi:10.1109/cicc57935.2023.10121317

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Cited by 4 publications

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A Review on Sub-THz FMCW Radars

Tabatabavakili,

Gruber,

Afshari

2023

2023 Asia-Pacific Microwave Conference (APMC)

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A Review on Sub-THz FMCW Radars

Tabatabavakili,

Gruber,

Afshari

2023

2023 Asia-Pacific Microwave Conference (APMC)

View full text Add to dashboard Cite

An Integrated 100-GHz FMCW Imaging Radar for Low-Cost Drywall Inspection

Naghavi,

Taba,

Aseeri

et al. 2024

IEEE Trans. Microwave Theory Techn.

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A 360 GHz Fully Integrated Differential Signal Source With 106.7 GHz Continuous Tuning Range in 90 nm SiGe:C BiCMOS

Starke,

Vogelsang,

Bott

et al. 2024

IEEE Trans. Microwave Theory Techn.

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Commercial frequency-modulated continuous-wave (FMCW) radar systems are well-established in the frequency range up to 100 GHz, with some exceptions operating in the D-band and above. There are multiple advantages of operating at higher frequencies, such as the use of ON-chip antennas and, therefore, the omission of high-frequency substrates for frontend designs, which enables the fabrication of low-cost FR4 radar frontends. This work features a 360 GHz fully integrated signal source and breakout circuits at 90 and 180 GHz, manufactured in the 90 nm B12HFC SiGe:C BiCMOS technology. We present a 90-GHz wideband Colpitts-Clapp VCO combined with a static frequency divider for stabilization purposes, achieving a tuning range (TR) of 24.1 GHz and an output power of up to 6.43 dBm. Adding a frequency-doubling and amplification stage expands this circuit, achieving 51.7-GHz TR and up to 3.8-dBm output power. The 360 GHz signal source adds another frequency-doubling stage consisting of a wideband differential hybrid coupler for quadrature signal generation, amplifier chains, and two push-push frequency doublers, generating a pseudodifferential output signal with up to −1.8 dBm output power and a frequency TR of 106.7 GHz (29.9%).

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A Compact CMOS 363 GHz Autodyne FMCW Radar with 57 GHz Bandwidth for Dental Imaging

Cited by 4 publications

References 5 publications

A Review on Sub-THz FMCW Radars

A Review on Sub-THz FMCW Radars

An Integrated 100-GHz FMCW Imaging Radar for Low-Cost Drywall Inspection

A 360 GHz Fully Integrated Differential Signal Source With 106.7 GHz Continuous Tuning Range in 90 nm SiGe:C BiCMOS

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