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- W4321769781 abstract "This letter presents an inverted complementary cross-coupled voltage-controlled oscillator (VCO) to reduce its phase noise (PN) sensitivity to VCO gain ( <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>$K_{mathrm {VCO}}$ </tex-math></inline-formula> ) implemented in a standard 28-nm bulk CMOS technology. Unlike conventional complementary VCO, the proposed topology places the NMOS switching pairs on the top of the PMOS pairs to constitute the inverted complementary cross-coupled topology to minimize the low-frequency noise up-conversion by varactors when with a large <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>$K_{mathrm {VCO}}$ </tex-math></inline-formula> . This topology can achieve both low PN at far offset frequency and a desired large continuous frequency tuning range for high-resolution millimeter-wave radar simultaneously. For example, when <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>$K_{mathrm {VCO}}$ </tex-math></inline-formula> varies with control voltage from 40 to 509 MHz/V, the PN only changes 0.68 dB at 10-MHz offset. The fabricated prototype achieves a PN of −133.63 dBc/Hz at 10-MHz offset from 18.9 GHz, and the corresponding figure-of-merit (FoM) is −185.5 dBc/Hz. The measured frequency tuning range is 18.75-20.75 GHz (10.13%)." @default.
- W4321769781 created "2023-02-25" @default.
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- W4321769781 date "2023-05-01" @default.
- W4321769781 modified "2023-10-07" @default.
- W4321769781 title "An Inverted Complementary Cross-Coupled VCO to Reduce Phase Noise Sensitivity to <i>K</i> <sub>VCO</sub>" @default.
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- W4321769781 doi "https://doi.org/10.1109/lmwt.2023.3234292" @default.
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