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Spherical Vector Wave Expansion of Gaussian Electromagnetic Fields for Antenna-Channel Interaction Analysis

Alayon Glazunov, Andres LU ; Gustafsson, Mats LU ; Molisch, Andreas LU ; Tufvesson, Fredrik LU and Kristensson, Gerhard LU (2008) In Technical Report LUTEDX/(TEAT-7162)/1-28/(2008) TEAT-7162.
Abstract
In this paper we introduce an approach to analyze the interaction between

antennas and the propagation channel. We study both the antennas and the

propagation channel by means of the spherical vector wave mode expansion of

the electromagnetic field. Then we use the expansion coefficients to study

some properties of general antennas in those fields by means of the antenna

scattering matrix. The focus is on the spatio-polar characterization of

antennas, channels and their interactions. We provide closed form

expressions for the covariance of the field multi-modes as function of the

Power Angle Spectrum (PAS) and the channel cross-polarization ratio (XPR). A

new... (More)
In this paper we introduce an approach to analyze the interaction between

antennas and the propagation channel. We study both the antennas and the

propagation channel by means of the spherical vector wave mode expansion of

the electromagnetic field. Then we use the expansion coefficients to study

some properties of general antennas in those fields by means of the antenna

scattering matrix. The focus is on the spatio-polar characterization of

antennas, channels and their interactions. We provide closed form

expressions for the covariance of the field multi-modes as function of the

Power Angle Spectrum (PAS) and the channel cross-polarization ratio (XPR). A

new interpretation of the Mean Effective Gains (MEG) of antennas is also

provided. The maximum MEG is obtained by conjugate mode matching between the

antennas and the channel; we also prove the (intuitive) results that the

optimum decorrelation of the antenna signals is obtained by the excitation

of orthogonal spherical vector modes. (Less)
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organization
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type
Book/Report
publication status
published
subject
in
Technical Report LUTEDX/(TEAT-7162)/1-28/(2008)
volume
TEAT-7162
pages
28 pages
publisher
[Publisher information missing]
language
English
LU publication?
yes
id
9f27d4ee-dc7b-4e92-a61a-4f41d6a5f990 (old id 1788165)
date added to LUP
2011-02-21 09:27:44
date last changed
2016-10-07 16:43:16
@misc{9f27d4ee-dc7b-4e92-a61a-4f41d6a5f990,
  abstract     = {In this paper we introduce an approach to analyze the interaction between<br/><br>
antennas and the propagation channel. We study both the antennas and the<br/><br>
propagation channel by means of the spherical vector wave mode expansion of<br/><br>
the electromagnetic field. Then we use the expansion coefficients to study<br/><br>
some properties of general antennas in those fields by means of the antenna<br/><br>
scattering matrix. The focus is on the spatio-polar characterization of<br/><br>
antennas, channels and their interactions. We provide closed form<br/><br>
expressions for the covariance of the field multi-modes as function of the<br/><br>
Power Angle Spectrum (PAS) and the channel cross-polarization ratio (XPR). A<br/><br>
new interpretation of the Mean Effective Gains (MEG) of antennas is also<br/><br>
provided. The maximum MEG is obtained by conjugate mode matching between the<br/><br>
antennas and the channel; we also prove the (intuitive) results that the<br/><br>
optimum decorrelation of the antenna signals is obtained by the excitation<br/><br>
of orthogonal spherical vector modes.},
  author       = {Alayon Glazunov, Andres and Gustafsson, Mats and Molisch, Andreas and Tufvesson, Fredrik and Kristensson, Gerhard},
  language     = {eng},
  pages        = {28},
  publisher    = {ARRAY(0xa1f45c0)},
  series       = {Technical Report LUTEDX/(TEAT-7162)/1-28/(2008)},
  title        = {Spherical Vector Wave Expansion of Gaussian Electromagnetic Fields for Antenna-Channel Interaction Analysis},
  volume       = {TEAT-7162},
  year         = {2008},
}