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Numerical study of position stirring and frequency stirring in loaded reverberation chamber

Ulf Carlberg (Institutionen för signaler och system, Antenner) ; Per-Simon Kildal (Institutionen för signaler och system, Antenner) ; Jan Carlsson (Institutionen för signaler och system, Antenner)
IEEE Transactions on Electromagnetic Compatibility (0018-9375). Vol. 51 (2009), 1, p. pp. 12-17.
[Artikel, refereegranskad vetenskaplig]

A numerical model of a loaded reverberation chamber is used to study the effectiveness of 3-D position stirring and frequency stirring. The numerical model is based on thin wires, the moment method, and a cavity Green's function. The average power transfer level between two dipole antennas is compared to the average power transfer level between a dipole antenna and a loop antenna. The two transmission levels should ideally be the same, as both the dipole and the loop are treated as being lossless and impedance matched. The standard deviation of the level differences is a measure of the accuracy of the chamber, and this is used to estimate the stirring effectiveness. It is shown that frequency stirring must be done over a larger bandwidth than the average mode bandwidth to be effective. The 3-D position stirring is also shown to be much more efficient than expected.

Nyckelord: Chalmers Library Link Resolver(opens in a new window)|Search Chalmers Lib Catalog(opens in a new window)|View at Publisher| Export | Download | Add to List | More... IEEE Transactions on Electromagnetic Compatibility Volume 51, Issue 1, 2009, Pages 12-17 Numerical study of position stirring and frequency stirring in a loaded reverberation chamber (Article) Carlberg, U.ab , Kildal, P.-S.b , Carlsson, J.ac a Chalmers University of Technology, SE-41296 Gothenburg, Sweden b SP Technical Research Institute of Sweden, SE-501 15 Borås, Sweden c Electromagnetic Compatibility Department, SP Technical Research Institute of Sweden, SE-501 15 Borås, Sweden View additional affiliations View references (20) Abstract A numerical model of a loaded reverberation chamber is used to study the effectiveness of 3-D position stirring and frequency stirring. The numerical model is based on thin wires, the moment method, and a cavity Green's function. The average power transfer leve



Denna post skapades 2009-04-15. Senast ändrad 2016-06-27.
CPL Pubid: 92495

 

Institutioner (Chalmers)

Institutionen för signaler och system, Antenner (2005-2014)

Ämnesområden

Elektroteknik och elektronik

Chalmers infrastruktur