Comparison of 122 GHz LNAs in SiGe with different transmission line topologies

Mao, Yanfei; Schmalz, K.; Borngräber, J.; Scheytt, J. Christoph

doi:10.1109/imws3.2011.6061862

Cited by 3 publications

(1 citation statement)

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“…For a frequency as high as 245 GHz, frequency shifts can occur for LNAs even if minor parasitics, such as pieces of short interconnects, the terminal connections, and parasitic bottom capacitor of the MIM capacitor, are introduced [13]. Thus, in order to give some frequency margin for measurement, in run1, two LNAs peaking at 245 and 265 GHz were designed.…”

Section: A Cb Lna In Run1mentioning

confidence: 99%

245-GHz LNA, Mixer, and Subharmonic Receiver in SiGe Technology

Mao

Schmalz

Borngräber

et al. 2012

IEEE Trans. Microwave Theory Techn.

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A four-stage common-base (CB) 245-GHz low-noise amplifier (LNA) and a fourth subharmonic 245-GHz transconductance mixer are presented. An integrated subharmonic receiver for sensing applications in the 245-GHz industrial-scientific-medical band is proposed. The receiver consists of a single-ended CB LNA, a fourth transconductance subharmonic mixer, a 60-GHz push-push voltage-controlled oscillator with a 1/32 divider, and an IF amplifier. It is fabricated in an SiGe: C BiCMOS technology with and of 300 and 500 GHz, respectively. Its measured single-ended gain is 21 dB at 243 GHz with a tuning range of 12 GHz, and a noise figure of 33 dB. The input 1-dB compression point is 37 dBm. The receiver dissipates at 358 mW. Index Terms-Common-base (CB) low-noise amplifier (LNA), millimeter-wave circuits, subharmonic mixer (SHM), SiGe technology, subharmonic receiver, 245 GHz, voltage-controlled oscillator (VCO).

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Section: A Cb Lna In Run1mentioning

confidence: 99%