Millimeter-wave and terahertz frequency synthesis on advanced silicon technology

Abstract : In recent years, millimeter-wave (mm-wave) and terahertz (THz) frequency bands haverevealed a great potential for many applications such as medical and biological imaging,quality control, and very-high-speed communications. The main reasons for this interestare the many interesting properties of THz and millimeter waves, such as their ability toharmlessly penetrate through matter or the broad spectrum available at these frequencies.Targeted applications require energy efficient signal sources with high power outputand, for some applications, low phase noise. In addition, the increasing demand in mmwave/THz applications requires the use of a cost-optimized, high-performance, and verylarge scale integration (VLSI) technologies, such as the 28nm CMOS FD-SOI technology.In this context, this thesis proposes an innovative solution for mm-wave and THz frequencygeneration in CMOS technology: the injection locked distributed oscillator (ILDO). Thework presented in this manuscript includes the detailed analysis of the state-of-the-artand its limitations, the detailed theoretical study of the proposed millimeter-waves bandsolution, the development of a specific design methodology in CMOS technology as well asthe design of technological demonstrators. The several 28nm FDSOI integrated distributedoscillators at 134 GHz and respectively 200 GHz have demonstrated the feasibility ofmm-wave and THz signal sources with high-energy efficiency, high output power, and lowphase noise in a VLSI CMOS technology. Finally, the injection locking capability of suchdistributed oscillators has been demonstrated experimentally paving the way for a futuresilicon-based fully integrated THz systems. The proposed circuits are as of today thehighest oscillation frequency solutions demonstrated in a 28nm CMOS Silicon technology.
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Raphael Guillaume. Millimeter-wave and terahertz frequency synthesis on advanced silicon technology. Electromagnetism. Université de Bordeaux, 2018. English. ⟨NNT : 2018BORD0412⟩. ⟨tel-02329132⟩

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