An Efficient Plane-Waves Superposition Method for Improved Spatial Correlation in Simulated Reverberation Chambers
- Resource Type
- article
- Authors
- Antonio Di Francesco; Valerio De Santis; Giorgi Bit-Babik; Antonio Faraone
- Source
- IEEE Access, Vol 10, Pp 119641-119648 (2022)
- Subject
- EM field statistics
equipment under test (EUT)
numerical methods
plane-waves superposition
Rayleigh propagation
reverberation chambers
Electrical engineering. Electronics. Nuclear engineering
TK1-9971
- Language
- English
- ISSN
- 2169-3536
Accurate Rayleigh propagation environments within an ideal reverberation chamber (RC) are synthesized computationally using a superposition of plane-waves (PWs). Randomness in the electro-magnetic (EM) field distribution is achieved by synthesizing many field realizations featuring slant-polarized PWs with randomly defined transverse field components. These PWs propagate along a large number of predefined and uniformly distributed directions determined only once via an efficient spiraling sampling scheme over the unit sphere. Comparisons with theoretical Rayleigh field statistics indicate that the proposed method yields random EM field distributions that in several cases follow more closely the field spatial correlation properties, for comparable numerical burden, than other available numerical techniques. Finally, a formula relating the number of PWs to the size of a desired RC analysis volume was provided.