Federico Vecchi

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High-rate communications technology leveraging the unlicensed spectrum around 60 GHz is almost ready for deployment with several demonstrations of successful wireless links. One key aspect of the transceiver is the ability to handle analog fractional bandwidths in the order of 20%, challenging for both the linear processing chain and the frequency reference(More)
Multi-Gb/s wireless communications, allocated in the unlicensed spectrum around 60GHz, have been the topic of intense research in the recent past and devices are expected to hit the market shortly. Key aspects behind the increasing interest for technology deployment are the feasibility of the radio in scaled CMOS and the successful demonstration of Gb/s(More)
This paper presents a fully integrated receiver for mm-wave WLANs comprising LNA, RF mixer, quadrature IF mixers, local oscillator plus output stage for characterization, in 65 nm CMOS. The IF frequency set to 1/3 the RF frequency slides according to the received frequency. The architecture choice allows running the quadrature VCO around 20 GHz. A Phase(More)
Modern RFICs have achieved an impressively high integration level, making crosscoupling effects among different sections of the circuit a potential limit to their functionality. Integrated spiral inductors occupy a significant chip area and are a potential source of EM interference. This paper investigates the coupling effects between two planar spiral(More)
This paper presents a wide-band fully integrated receiver for Gbit/s connectivity at mm-waves comprising LNA, RF mixer, quadrature IF mixers, local oscillator (LO), in 65 nm CMOS. The architecture choice is key to meet LO requirements at low power dissipation. We have selected a sliding IF architecture, where the IF frequency, set to 1/3 the RF frequency,(More)
Modern RFICs have achieved an impressively high integration level, making cross-coupling effects among different sections of the circuit a potential limit to their functionality. Integrated spiral inductors are a potential source of EM interference. This paper presents a physical equivalent circuit for the accurate wideband modeling of coupling between(More)
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