Effect of cooling on the probe system sensitivity for low signal strength RFI problems

Guang Hua Li, Wei Huang, David Pommerenke

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem Konferenzband

Abstract

Only highly sensitive probe systems can detect the weak field strengths that cause radio-frequency-interference (RFI) problems typically found within cell phones. The sensitivity of the probe systems depends on the probe factor and on the noise floor. The effect of cooling by liquid nitrogen on the received signal strength and the noise floor of three resonant probe systems has been investigated. They operate at the GSM, GPS, and WiFi frequency bands. Cooling increases the Q-factor of these resonant probes, increases the received signal, and lowers the noise floor. The sensitivity of the system, defined as the signal strength at which the Signal-to-Noise Ratio is equal to 0 dB improves by 3-6 dB.

Originalspracheenglisch
TitelProceedings - 2013 IEEE International Symposium on Electromagnetic Compatibility, EMC 2013
Seiten134-137
Seitenumfang4
DOIs
PublikationsstatusVeröffentlicht - 1 Dez 2013
Extern publiziertJa
Veranstaltung2013 IEEE International Symposium on Electromagnetic Compatibility, EMC 2013 - Denver, CO, USA / Vereinigte Staaten
Dauer: 5 Aug 20139 Aug 2013

Publikationsreihe

NameIEEE International Symposium on Electromagnetic Compatibility
ISSN (Print)1077-4076
ISSN (elektronisch)2158-1118

Konferenz

Konferenz2013 IEEE International Symposium on Electromagnetic Compatibility, EMC 2013
LandUSA / Vereinigte Staaten
OrtDenver, CO
Zeitraum5/08/139/08/13

ASJC Scopus subject areas

  • !!Condensed Matter Physics
  • !!Electrical and Electronic Engineering

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