Cyclostationary Shot-Noise Measurements in RF Schottky-Barrier Diode Detectors

Autor:	Olivier Llopis, J. Graffeuil, R.A. Liman, Jean Luc Muraro
Rok vydání:	2010
Předmět:	Physics Noise measurement business.industry Noise spectral density Quantum noise Electrical engineering Shot noise Schottky diode Noise (electronics) Electronic Optical and Magnetic Materials Optics Noise generator Electrical and Electronic Engineering business Diode
Zdroj:	IEEE Electron Device Letters. 31:74-76
ISSN:	1558-0563 0741-3106
DOI:	10.1109/led.2009.2035339
Popis:	Homodyne (zero-IF) operation is very prone to low-frequency noise, partially contributed by the solid-state detector operated in large-signal (quasi-)periodic conditions. Shot noise is the major contributor to this noise if the detector is operated beyond its noise corner frequency. In this letter, we experimentally observe that the current spectral density of this shot noise in Schottky diode detectors is different from the conventional 2qI, where I is the average current. It is found that it varies as 2nkT/R dp, where n is the diode ideality factor and R dp is the small-signal resistance of the pumped diode that can be very different from the standard-diode small-signal resistance obtained from the differential of the I-V characteristic. To the best of our knowledge, this behavior was anticipated theoretically a long time ago but has been seldom addressed experimentally.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b310fd32b0a245c0087d2c034baf2eb7 https://doi.org/10.1109/led.2009.2035339 Zobrazit plný text záznamu