Silicon-based FMCW signal generators: A review

Wei Deng; Haikun Jia; Baoyong Chi

doi:10.1088/1674-4926/41/11/111401

Journals >Journal of Semiconductors >Volume 41 >Issue 11 >Page 111401 > Article

Journal of Semiconductors
Vol. 41, Issue 11, 111401 (2020)

Silicon-based FMCW signal generators: A review

Wei Deng^1,2, Haikun Jia^1,2, and Baoyong Chi¹

Author Affiliations

¹Institute of Microelectronics, Tsinghua University, Beijing 100084, China

²Research Institute of Tsinghua University in Shenzhen, Shenzhen 518057, China

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DOI: 10.1088/1674-4926/41/11/111401 Cite this Article

Wei Deng, Haikun Jia, Baoyong Chi. Silicon-based FMCW signal generators: A review[J]. Journal of Semiconductors, 2020, 41(11): 111401 Copy Citation Text

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Abstract

FMCW radars with high resolution necessities the generation of highly linear, low phase noise, and low spur chirp signals with large bandwidth and a short modulation period. This paper reviews recent research progress on silicon-based FMCW signal generators, identifies advances in architecture, fundamental design, performance analysis, and applications of the FMCW synthesizer.

${f_{{\rm{b}}1,2}} =\pm \frac{{2{\rm{B}}{{\rm{W}}_{\rm C}}}}{{T_{\rm C} C}} \cdot R + \frac{{2{f_{\rm{C}}}}}{C} \cdot v,$

(1)

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${{{G}}_{{\rm{loop}}}}\left( {{z}} \right) = {K_{{\rm{TDC}}}} \cdot {K_{{\rm{DCO}}}}\cdot{H_{{\rm{DLF}}}}\left( {{z}} \right) \cdot \frac{{{z^{ - 1}}}}{{1 - {z^{ - 1}}}} \cdot \frac{1}{{Nf_{{\rm{ref}}}^2}},$

(2)

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${H_{{\rm{LP}}}}\left( z \right) = {f_{{\rm{ref}}}} \cdot \frac{{{G_{{\rm{loop}}}}\left( z \right)}}{{1 + {G_{{\rm{loop}}}}\left( z \right)}}.$

(3)

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${H_{{\rm{HP}}}}\left( z \right) = {g_0} \cdot \frac{{{K_{{\rm{DCO}}}}}}{{1 + {G_{{\rm{loop}}}}\left( z \right)}}.$

(4)

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${{{H}}_{{\rm{TPM}}}}\left( z \right) = {f_{{\rm{ref}}}} \cdot \left[\frac{{{G_{{\rm{loop}}}}\left( z \right)}}{{1 + {G_{{\rm{loop}}}}\left( z \right)}} + \frac{{{g_0} {K_{{\rm{DCO}}}} \cdot (1/{f_{{\rm{ref}}}})}}{{1 + {G_{{\rm{loop}}}}\left( z \right)}}\right].$

(5)