Millimetre-wave (mm-Wave) and sub-terahertz (sub-THz) oscillators are the most critical elements of mm-Wave/sub-THz signal-generation systems as their performance, in terms of tuning range, phase noise and output power, significantly affects the system performance. With the continuous scaling of the complementary metaloxide-semiconductor (CMOS) technologies, the realization of the fundamental CMOS voltage-controlled oscillators (VCOs) operating at mm-Wave/sub-THz frequency ranges has made understanding more feasible and attractive. However, it is still very challenging for fundamental oscillators to achieve a wide frequency tuning range with low phase noise and low power consumption at such high frequencies. This chapter discusses and demonstrates mm-Wave and sub-THz oscillators using magnetic tuning techniques, for both coarse and fine frequency tuning, to achieve a wide tuning range, low phase noise and low power consumption.
Mm-wave and sub-THz CMOS VCOs, Page 1 of 2
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