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- W4387546327 abstract "This article presents multi-band direct-conversion receivers (RXs) with frequency-translated negative feedback. The forward path includes a low-noise transconductance amplifier (LNTA) followed by four-phase passive mixers that drive baseband amplifiers. A feedback path employs tunable resistor banks attached to additional four-phase passive mixers, allowing tunable, frequency-selective input matching around a wide range of local oscillator (LO) frequencies. The passive mixers are driven by 25% duty-cycle, non-overlapping quadrature LO waveforms, and two different methods are presented for generating such waveforms. Two RX variants, differing in their LO generation schemes, are fabricated in 45-nm SOI CMOS. The first operates from 6 to 30 GHz, exhibiting greater than 25-dB gain and 4.1–10.5-dB noise figure (NF). A second operates from 10 to 50 GHz, achieving greater than 18-dB gain with 7.1–17-dB NF across the band. For either version, the instantaneous bandwidth is 960 MHz for the highest gain setting and 1375 MHz with reduced gain, measured at 10 GHz LO. The in-band third-order intercept point (IIP3) is <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>$-$</tex-math> </inline-formula> 5.4 dBm, the in-band IIP2 is <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>$+$</tex-math> </inline-formula> 16.5 dBm, and the out-of-band 1-dB blocker compression is greater than <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>$-$</tex-math> </inline-formula> 15 dBm. The RX core consumes 71 mW, while LO circuitry in each variant consumes 48–182 and 72–262 mW from 10 to 50 and 6 to 30 GHz, respectively." @default.
- W4387546327 created "2023-10-12" @default.
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- W4387546327 date "2023-01-01" @default.
- W4387546327 modified "2023-10-12" @default.
- W4387546327 title "RF-to-Millimeter-Wave Receivers Employing Frequency-Translated Feedback" @default.
- W4387546327 doi "https://doi.org/10.1109/jssc.2023.3322136" @default.
- W4387546327 hasPublicationYear "2023" @default.
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