Physical Modeling of MIMO Antennas and Channels by Means of the Spherical Vector Wave Expansion
Alayon Glazunov, Andres LU ; Gustafsson, Mats LU
; Molisch, Andreas
LU
and Tufvesson, Fredrik
LU
(2009)
In Technical Report LUTEDX/(TEAT-7177)/1-31/(2009)
- Abstract
- In this paper we propose a new physically motivated model that allows to study the interaction between the antennas and
the propagation channel for Multiple-Input Multiple-Output (MIMO) systems.
The key tools employed in the model are the expansion coefficients of the electromagnetic field in
spherical vector waves and the scattering matrix representation of the
properties of the antenna. We derive the expansion of the MIMO
channel matrix, H, in spherical vector wave modes of
the electromagnetic field of the antennas as well as the propagation channel. We also introduce the channel scattering dyadic, C,
with a corresponding correlation model for co- and cross-polarized... (More) - In this paper we propose a new physically motivated model that allows to study the interaction between the antennas and
the propagation channel for Multiple-Input Multiple-Output (MIMO) systems.
The key tools employed in the model are the expansion coefficients of the electromagnetic field in
spherical vector waves and the scattering matrix representation of the
properties of the antenna. We derive the expansion of the MIMO
channel matrix, H, in spherical vector wave modes of
the electromagnetic field of the antennas as well as the propagation channel. We also introduce the channel scattering dyadic, C,
with a corresponding correlation model for co- and cross-polarized elements
and introduce the concept of mode-to-mode channel mapping, the
M-matrix, between the receive and transmit antenna modes. The M-matrix maps the modes excited by the
transmitting antenna to the modes exciting the receive antennas and vice
versa. The covariance statistics of this M-matrix are expressed as a function
of the double-directional power-angular spectrum (PAS) of co- and
cross-polarized components of the electromagnetic field. Our approach
aims at gaining insights into the physics governing the interaction between
antennas and channels and it is useful for studying the
performance of different antenna designs in a specified propagation channel
as well as for modeling the propagation channel. It can furthermore be used to
quantify the optimal properties of antennas in a given propagation channel.
We illustrate the developed methodology by analyzing the interaction of a 2x2 system of slant polarized half-wavelength dipole antennas with
some basic propagation channel models. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1788383
- author
- Alayon Glazunov, Andres
LU
; Gustafsson, Mats
LU
; Molisch, Andreas
LU
and Tufvesson, Fredrik
LU
- organization
- publishing date
- 2009
- type
- Book/Report
- publication status
- published
- subject
- in
- Technical Report LUTEDX/(TEAT-7177)/1-31/(2009)
- pages
- 31 pages
- publisher
- [Publisher information missing]
- report number
- TEAT-7177
- language
- English
- LU publication?
- yes
- additional info
- Published version: IET Microwaves, Antennas and Propagation, Vol. 4, No. 6, pp. 778-791, 2010.
- id
- 632dff94-8fc2-4afd-8fcf-0ef8b8a89f17 (old id 1788383)
- date added to LUP
- 2016-04-04 14:32:08
- date last changed
- 2018-11-21 21:20:52
@techreport{632dff94-8fc2-4afd-8fcf-0ef8b8a89f17,
abstract = {{In this paper we propose a new physically motivated model that allows to study the interaction between the antennas and<br/><br>
the propagation channel for Multiple-Input Multiple-Output (MIMO) systems.<br/><br>
The key tools employed in the model are the expansion coefficients of the electromagnetic field in<br/><br>
spherical vector waves and the scattering matrix representation of the<br/><br>
properties of the antenna. We derive the expansion of the MIMO<br/><br>
channel matrix, H, in spherical vector wave modes of<br/><br>
the electromagnetic field of the antennas as well as the propagation channel. We also introduce the channel scattering dyadic, C,<br/><br>
with a corresponding correlation model for co- and cross-polarized elements<br/><br>
and introduce the concept of mode-to-mode channel mapping, the<br/><br>
M-matrix, between the receive and transmit antenna modes. The M-matrix maps the modes excited by the<br/><br>
transmitting antenna to the modes exciting the receive antennas and vice<br/><br>
versa. The covariance statistics of this M-matrix are expressed as a function<br/><br>
of the double-directional power-angular spectrum (PAS) of co- and<br/><br>
cross-polarized components of the electromagnetic field. Our approach<br/><br>
aims at gaining insights into the physics governing the interaction between<br/><br>
antennas and channels and it is useful for studying the<br/><br>
performance of different antenna designs in a specified propagation channel<br/><br>
as well as for modeling the propagation channel. It can furthermore be used to<br/><br>
quantify the optimal properties of antennas in a given propagation channel.<br/><br>
We illustrate the developed methodology by analyzing the interaction of a 2x2 system of slant polarized half-wavelength dipole antennas with<br/><br>
some basic propagation channel models.}},
author = {{Alayon Glazunov, Andres and Gustafsson, Mats and Molisch, Andreas and Tufvesson, Fredrik}},
institution = {{[Publisher information missing]}},
language = {{eng}},
number = {{TEAT-7177}},
series = {{Technical Report LUTEDX/(TEAT-7177)/1-31/(2009)}},
title = {{Physical Modeling of MIMO Antennas and Channels by Means of the Spherical Vector Wave Expansion}},
url = {{https://lup.lub.lu.se/search/files/6382667/1788398.pdf}},
year = {{2009}},
}