Power-Optimized Digitally Controlled Oscillator in 28-nm CMOS for Low-Power FMCW Radars

Publications associées (29)

Nonreciprocal reconfigurable microwave optomechanical circuit

Tobias Kippenberg, Nathan Rafaël Bernier, Marie Adrienne Ioannou, László Dániel Tóth, Akshay Koottandavida

Nonreciprocal devices, such as isolators, are required to protect sensitive superconducting quantum circuits. Growing research has focused on integrated alternatives to the existing bulky ferrite technologies. Here we realize a nonreciprocal isolator with ...

IEEE2018

An optical-frequency synthesizer using integrated photonics

Tobias Kippenberg, Nicolas Volet, Martin Hubert Peter Pfeiffer

Optical-frequency synthesizers, which generate frequency-stable light from a single microwave-frequency reference, are revolutionizing ultrafast science and metrology, but their size, power requirement and cost need to be reduced if they are to be more wid ...

2018

Ultra-low noise microwave signal generation with an optical frequency comb

Christophe Alexandre

Photonic synthesis of radio frequency waveforms revived the quest for unrivalled microwave purity by its seducing ability to convey the benefits of the optics to the microwave world. In this contribution, we will present a high-fidelity transfer of frequen ...

SPIE-INT SOC OPTICAL ENGINEERING2018

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Nonreciprocal reconfigurable microwave optomechanical circuit

Tobias Kippenberg, Nathan Rafaël Bernier, Marie Adrienne Ioannou, László Dániel Tóth, Akshay Koottandavida

IEEE2018

Area and Power Efficient Ultra-Wideband Transmitter Based on Active Inductor

Catherine Dehollain, Kerim Türe, Arnout Jan J Devos, Franco Maloberti

This paper presents the design of an impulse radio ultra-wideband (IR-UWB) transmitter for low-power, short-range, and high-data rate applications such as high density neural recording interfaces. The IR-UWB transmitter pulses are generated by modulating t ...

2018

An optical-frequency synthesizer using integrated photonics

Tobias Kippenberg, Nicolas Volet, Martin Hubert Peter Pfeiffer

2018

Ultra-low noise microwave signal generation with an optical frequency comb

Christophe Alexandre

SPIE-INT SOC OPTICAL ENGINEERING2018

FM-UWB: Towards a Robust, Low-Power Radio for Body Area Networks

Christian Enz, John Farserotu, Vladimir Kopta

The Frequency Modulated Ultra-Wideband (FM-UWB) is known as a low-power, low-complexity modulation scheme targeting low to moderate data rates in applications such as wireless body area networks. In this paper, a thorough review of all FM-UWB receivers and ...

2017

Carrier Tracking using Extended Kalman Filters for GNSS Synthetic Aperture Processing with a Rotating Antenna

Pierre-André Farine, Joaquin Cabeza de Pablo, Cyril Botteron, Miguel Angel Ribot Sanfelix

A single GNSS antenna moving along a known trajectory can be used to synthesize a virtual array in order to apply spatial diversity techniques, e.g. beamforming. With these techniques, referred as synthetic aperture (SA) techniques, the receiver can mitiga ...

2017

Avalanche noise diodes: A compact circuit model compatible with advanced CAD tools

Christian Enz, Pierre-André Farine, Cyril Botteron, Gabriele Tasselli

This paper proposes, for the first time, a compact model for avalanche noise diodes that can easily be inserted in advanced CAD tools. The model is based on the theory of the Read type microwave avalanche diodes. It fully accounts for the electronic tuning ...

IEEE2015

Counting the cycles of light using a self-referenced optical microresonator

Tobias Kippenberg, Victor Brasch, Martin Hubert Peter Pfeiffer, Tobias Herr, John David Jost, Caroline Marie Anne Lecaplain

Phase coherently linking optical-to-radio frequencies with femtosecond mode-locked laser frequency combs has enabled counting the cycles of light and is the basis of optical clocks, absolute frequency synthesis, tests of fundamental physics, and improved s ...

Optical Soc Amer2015

Digitization Technique for UWB Receiver and Capacitive Sensor Interface

Shenjie Wang

As CMOS processes continue to scale to smaller dimensions, the increased fT of the devices and smaller parasitic capacitance allow formore power efficient and faster digital circuits to be made. But at the same time, output impedance of transistors has gon ...

EPFL2014

A 2.4-GHz low power polar transmitter for wireless body area network applications

Christian Enz, Vladimir Kopta, Franz Xaver Pengg

A 2.4 GHz low power polar transmitter is proposed in this paper. A dynamic biasing circuit, controlled by a digital envelope signal, is used as a direct digital-to-RF envelope converter. It effectively linearizes the input-output characteristic of the over ...

Springer Verlag2014

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