A 90nm CMOS SoC UWB pulse radar for respiratory rate monitoring

Zito, Domenico; Pepe, Domenico; Martina, Maurizio; Zito, Fabio

doi:10.1109/isscc.2011.5746210

Cited by 49 publications

(37 citation statements)

References 4 publications

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“…[1][2][3][4][5] One of the most critical circuits of modern radiofrequency transceivers is the local oscillator, i.e., an autonomous circuit operating as the \pulsing heart" of such systems, in an analogy with the human body. As any other Despite these results provide a¯rst interesting perspective, this is limited by the comparison between a di®erential topology, i.e., cross-coupled common-source differential pair, and two single-ended topologies, Colpitts and Hartley.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Phase Noise in 28 nm CMOS LC Oscillator Differential Topologies: Armstrong, Colpitts, Hartley and Common-Source Cross-Coupled Pair

Chlis

Pepe²,

Zito

2015

J CIRCUIT SYST COMP

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Comparative Phase Noise analyses of common-source cross-coupled pair, Colpitts, Hartley and Armstrong di®erential oscillator circuit topologies, designed in 28 nm bulk CMOS technology in a set of common conditions for operating frequencies in the range from 1 GHz to 100 GHz, are carried out in order to identify their relative performance. The impulse sensitivity function (ISF) is used to carry out qualitative and quantitative analyses of the noise contributions exhibited by each circuit component in each topology, allowing an understanding of their impact on phase noise. The comparative analyses show the existence of¯ve distinct frequency regions in which the four topologies rank unevenly in terms of best phase noise performance. Moreover, the results obtained from the ISF show the impact of°icker noise contribution as the major e®ect leading to phase noise degradation in nanoscale CMOS LC oscillators.

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Section: Introductionmentioning

confidence: 99%

Analysis of Phase Noise in 28 nm CMOS LC Oscillator Differential Topologies: Armstrong, Colpitts, Hartley and Common-Source Cross-Coupled Pair

Chlis

Pepe²,

Zito

2015

J CIRCUIT SYST COMP

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“…According to the FCC definitions, a UWB system is any radio system operating in a bandwidth greater or equal to 500 MHz, or with a fractional band greater or equal to 10%, operating in the above spectrum region. This is a key enabling radio technology for several unlicensed commercial applications, such as ground penetrating radar (GPR) systems, wall and through wall imaging systems, surveillance systems, high data rate Recently the first system-on-a-chip (SoC) UWB pulse radar, operating in compliance with the FCC mask, was implemented in 90 nm CMOS technology by our research group [2]. The entire UWB pulse radar sensor was implemented by co-integrating the radar microchip above and two novel planar differential antennas (transmitting and receiving) designed and realized on FR4 substrate.…”

mentioning

confidence: 99%

“…The entire UWB pulse radar sensor was implemented by co-integrating the radar microchip above and two novel planar differential antennas (transmitting and receiving) designed and realized on FR4 substrate. This paper addresses the design, simulation and experimental characterization of the novel UWB antenna, which was not reported in our previous publications focused exclusively on the SoC implementation of the radar microchip [2], and on the functional and field operational tests for respiratory rate detections [3], whose results will be not repeated here.The paper is organized as follows. Section II reports the description of the novel antenna design.…”

mentioning

confidence: 99%

Planar Differential Antenna for Short-Range UWB Pulse Radar Sensor

Pepe¹,

Vallozzi

Rogier

et al. 2013

Antennas Wirel. Propag. Lett.

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Abstract-A novel planar differential ultra-wideband (UWB) antenna was designed and implemented on low-cost FR4 substrate and characterized experimentally. The dedicated design was motivated by the implementation of a UWB pulse radar sensor obtained by co-integrating a system-on-a-chip UWB pulse radar packaged in QFN32 package with the proposed antenna, one for the transmitter and one for the receiver. The experimental results confirm the predictions obtained by simulations, and the effectiveness of the novel antenna design for the implementation of low-cost short-range pulse radar sensor was validated by field operational tests.Index Terms-Ultra-wideband (UWB), planar antenna, differential antenna, short-range radar, biomedical applications. . UWB devices transmit and receive extremely short radio-frequency pulses, with time duration in the range from tens of picoseconds to tens of nanoseconds. As a consequence, the frequency spectrum of the transmitted signal has very wide band occupancy (several GHz) and very low power spectral density (PSD). The maximum in-band (3.1-10.6 GHz) allowed equivalent isotropic radiated power (EIRP) spectral density is -41.3 dBm/MHz. According to the FCC definitions, a UWB system is any radio system operating in a bandwidth greater or equal to 500 MHz, or with a fractional band greater or equal to 10%, operating in the above spectrum region. This is a key enabling radio technology for several unlicensed commercial applications, such as ground penetrating radar (GPR) systems, wall and through wall imaging systems, surveillance systems, high data rate Recently the first system-on-a-chip (SoC) UWB pulse radar, operating in compliance with the FCC mask, was implemented in 90 nm CMOS technology by our research group [2]. The entire UWB pulse radar sensor was implemented by co-integrating the radar microchip above and two novel planar differential antennas (transmitting and receiving) designed and realized on FR4 substrate. This paper addresses the design, simulation and experimental characterization of the novel UWB antenna, which was not reported in our previous publications focused exclusively on the SoC implementation of the radar microchip [2], and on the functional and field operational tests for respiratory rate detections [3], whose results will be not repeated here.The paper is organized as follows. Section II reports the description of the novel antenna design. Section III, reports the results of simulations and measurements. Finally, in Section IV, the conclusions are drawn.

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“…However, since our target frequency is temporarily 3-5 GHz and will be extended to 3-10 GHz, the digital impulse generator is chosen rather than the oscillator based pulse generator. The pulse generator using a digital logic uses the very small time delay (τ) cell to obtain the high center frequency [7]. Fig.…”

Section: Pulse Generatormentioning

confidence: 99%

A 3 ~ 5 GHz CMOS UWB Radar Chip for Surveillance and Biometric Applications

Lee¹,

Ha²,

Yoo³

et al. 2011

JSTS:Journal of Semiconductor Technology and Science

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Abstract-A 3-5 GHz UWB radar chip in 0.13 m CMOS process is presented in this paper. The UWB radar transceiver for surveillance and biometric applications adopts the equivalent time sampling architecture and 4-channel time interleaved samplers to relax the impractical sampling frequency and enhance the overall scanning time. The RF front end (RFFE) includes the wideband LNA and 4-way RF power splitter, and the analog signal processing part consists of the high speed track & hold (T&H) / sample & hold (S&H) and integrator. The interleaved timing clocks are generated using a delay locked loop. The UWB transmitter employs the digitally synthesized topology. The measured NF of RFFE is 9.5 dB in 3-5 GHz. And DLL timing resolution is 50 ps. The measured spectrum of UWB transmitter shows the center frequency within 3-5 GHz satisfying the FCC spectrum mask. The power consumption of receiver and transmitter are 106.5 mW and 57 mW at 1.5 V supply, respectively.

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A 90nm CMOS SoC UWB pulse radar for respiratory rate monitoring

Cited by 49 publications

References 4 publications

Analysis of Phase Noise in 28 nm CMOS LC Oscillator Differential Topologies: Armstrong, Colpitts, Hartley and Common-Source Cross-Coupled Pair

Analysis of Phase Noise in 28 nm CMOS LC Oscillator Differential Topologies: Armstrong, Colpitts, Hartley and Common-Source Cross-Coupled Pair

Planar Differential Antenna for Short-Range UWB Pulse Radar Sensor

A 3 ~ 5 GHz CMOS UWB Radar Chip for Surveillance and Biometric Applications

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