Zobrazeno 1 - 10
of 904
pro vyhledávání: '"F. Herzel"'
Autor:
M. Kucharski, F. Herzel
Publikováno v:
Advances in Radio Science, Vol 13, Pp 133-139 (2015)
This paper presents a numerical comparison of charge pumps (CP) designed for a high linearity and a low noise to be used in a fractional-N phase-locked loop (PLL). We consider a PLL architecture, where two parallel CPs with DC offset are used. The CP
Externí odkaz:
https://doaj.org/article/c814bb8d17df47a8b30c4511007343d1
Publikováno v:
Advances in Radio Science, Vol 7, Pp 243-247 (2009)
In this paper a low-power low-phase-noise voltage-controlled-oscillator (VCO) has been designed and, fabricated in 0.25 μm SiGe BiCMOS process. The resonator of the VCO is implemented with on-chip MIM capacitors and a single aluminum bondwire. A tai
Externí odkaz:
https://doaj.org/article/b7d642b0e3154fc987ffd580dadccbd8
Publikováno v:
Advances in Radio Science, Vol 5, Pp 313-320 (2007)
We present an analytical phase noise model for fractional-N phase-locked loops (PLL) with emphasis on integrated RF synthesizers in the GHz range. The noise of the crystal reference, the voltage-controlled oscillator (VCO), the loop filter, the charg
Externí odkaz:
https://doaj.org/article/8feecbcd778242e4854f4bf124812f11
Publikováno v:
Advances in Radio Science, Vol 7, Pp 243-247 (2009)
In this paper a low-power low-phase-noise voltage-controlled-oscillator (VCO) has been designed and, fabricated in 0.25 μm SiGe BiCMOS process. The resonator of the VCO is implemented with on-chip MIM capacitors and a single aluminum bondwire. A tai
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::988ed2c803f9da331e8ebe2f70220b82
https://www.adv-radio-sci.net/7/243/2009/
https://www.adv-radio-sci.net/7/243/2009/
Publikováno v:
The Analyst. 140:3262-3272
In this report we propose a sensor architecture and a corresponding read-out technique on silicon for the detection of dynamic capacitance change. This approach can be applied to rapid particle counting and single particle sensing in a fluidic system
Autor:
F. Herzel, W. Winkler
Publikováno v:
IEEE Transactions on Circuits and Systems II: Express Briefs. 52:140-144
We present a 2.5-GHz voltage-controlled oscillator (VCO) with eight equally distributed phases derived from a 10-GHz LC VCO. Stochastic and static phase errors were obtained by spectrum analyzer measurements in conjunction with an on-chip single-side
Publikováno v:
IEEE Journal of Solid-State Circuits. 38:357-360
This paper presents a fully integrated highly sensitive frequency-shift keying (FSK) demodulator functioning at a modulation factor of 0.5%-0.1% and below. A dual-feedback phase-locked loop approach provides both very high sensitivity and sufficientl
Akademický článek
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Conference
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Influence of low doped emitter and collector regions on high-frequency performance of SiGe-base HBTs
Publikováno v:
Solid-State Electronics. 38:1183-1189
The high-frequency behavior of a Si/Si1−xGex/Si heterojunction bipolar transistor is investigated by means of a two-dimensional device simulation program. A simplified method based on the quasi-static approximation and the well-known formula fmax=