Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Raghavasimhan Thirunarayanan"'
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 63:1110-1117
The energy dissipated by conventional phase-locked-loop-based transmitters (TXs) during the long startup phase is a major bottleneck that reduces the energy autonomy of duty-cycled ultra-low-power systems. In order to tackle this problem, this paper
Publikováno v:
ESSCIRC
This paper presents a low start-up latency Transmitter (TX) that can achieve FSK data rates of upto 51.4 Mb/s for deployment in duty cycled microsensor nodes. Utilizing a Phase Domain Digital Synthesizer with an FBAR frequency reference, this TX has
Publikováno v:
Electromagnetics of Body Area Networks
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55ab22b93c6657b1b2418e1fa7f3ab84
https://doi.org/10.1002/9781119082910.ch12
https://doi.org/10.1002/9781119082910.ch12
Publikováno v:
Analog Integrated Circuits and Signal Processing. 73:769-777
A BAW based parallel resonance oscillator employing cross-coupled complementary structure is presented for applications requiring ultra-low power consumption and good phase noise performance. Compared to the differential NMOS structure, this circuit
Publikováno v:
ESSCIRC
Publikováno v:
ISCAS
A 2.4 GHz polar transmitter compliant with the IEEE 802.15.6 standard is presented in this paper. A Linearized class-C power amplifier, employing dynamic biasing is used to minimize the adjacent channel interference and satisfy the defined spectrum m
Publikováno v:
ISCAS
Energy wasted during the wake-up of radios significantly degrades the efficiency of duty-cycled Wireless Sensor Networks (WSN). The major contributor to this energy wastage is the PLL-based frequency synthesizer which has a long wakeup time. Furtherm
Autor:
F. Pengg, Nicola Scolari, Pascal Persechini, Christian Enz, Raghavasimhan Thirunarayanan, David Ruffieux
Publikováno v:
2014 IEEE Radio Frequency Integrated Circuits Symposium.
This paper presents a PLL-free transmitter based on an FBAR achieving a 5μs startup time to reduce the crystal oscillator power overhead which degrades the energy efficiency for heavily duty cycled systems. The TX upconverts a FSK-modulated FBAR DCO
Publikováno v:
ESSCIRC
A programmable fractional frequency divider with a division step size of 0.2 has been proposed in this paper. The circuit consists of a 5-stage ring oscillator which is injection locked to an external source. The different phases from the ring oscill
Publikováno v:
Journal of the Society for Information Display. 17:897
— Methods to reduce the power dissipation and supply voltage of LCD drivers for several line-by-line addressing techniques (viz., addressing based on Hadamard matrices, diagonal matrices, and wavelets) are proposed, based on the analysis and estima