A Fully Integrated 490-GHz CMOS Heterodyne Imager Adopting Second Subharmonic Resistive Mixer Structure

A Fully Integrated 490-GHz CMOS Heterodyne Imager Adopting Second Subharmonic Resistive Mixer Structure

A fully integrated 490-GHz heterodyne imager is reported. The imager adopts a second subharmonic resistive mixer wherein the transmission lines and small capacitors are used to enhance port-to-port isolation and the suppression of undesired local oscillator (LO) leakage and harmonic mixing component...

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Veröffentlicht in:IEEE microwave and wireless components letters 2019-10, Vol.29 (10), p.673-676
Hauptverfasser: Choi, Kyung-Sik, Utomo, Dzuhri Radityo, Lee, Sang-Gug
Format: Artikel
Sprache:eng
Schlagworte:
CMOS
Frequency measurement
Harmonic analysis
heterodyne imager
Imaging
Mixers
Oscillators
Radio frequency
terahertz (THz) integrated circuit
THz imaging
Transmission lines
Voltage measurement
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Zusammenfassung:A fully integrated 490-GHz heterodyne imager is reported. The imager adopts a second subharmonic resistive mixer wherein the transmission lines and small capacitors are used to enhance port-to-port isolation and the suppression of undesired local oscillator (LO) leakage and harmonic mixing components. The imager achieves a minimum noise equivalent power of 1.2 pW/Hz 0.5 while dissipating 26 mW from a 1.2-V supply. This work presents the highest frequency implementation among the reported fully integrated heterodyne imagers in silicon technology.
ISSN:1531-1309
2771-957X
1558-1764
2771-9588
DOI:10.1109/LMWC.2019.2936685