A 220‐GHz CMOS passive subharmonic downconverter for low‐IF applications.
In: Microwave & Optical Technology Letters, Jg. 64 (2022-10-01), Heft 10, S. 1694-1699
Online
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Zugriff:
This paper presents a 220‐GHz subharmonic downconverter with high conversion gain (CG) and low noise figure (NF) implemented in 28 nm bulk CMOS, including a core mixer and an intermediate frequency (IF) amplifier. Based on the traditional quasi‐subharmonic mixer, new gate‐shorted technology is presented to improve NF and CG by adding a source inductor to reduce the loss of radiofrequency signals. In addition, the impedance transformation network provides passive voltage gain to suppress the noise of the IF amplifier. The downconverter achieves a minimum single‐sidebandNF of 15.5 dB and a maximum CG of 21.3 dB when the IF frequency is 10 MHz. The 1 dB compression point of the downconverter is −30 dBm and consumes 8 mA current with an operating voltage of 0.9 V. The core area of the chip is 200 × 160 µm2 [ABSTRACT FROM AUTHOR]
Titel: |
A 220‐GHz CMOS passive subharmonic downconverter for low‐IF applications.
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Autor/in / Beteiligte Person: | Fu, Haipeng ; Huang, Puhuan ; Ma, Kaixue |
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Zeitschrift: | Microwave & Optical Technology Letters, Jg. 64 (2022-10-01), Heft 10, S. 1694-1699 |
Veröffentlichung: | 2022 |
Medientyp: | academicJournal |
ISSN: | 0895-2477 (print) |
DOI: | 10.1002/mop.33354 |
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