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Antenna matching for performance optimization in compact MIMO systems

Lau, Buon Kiong LU and Tian, Ruiyuan LU (2007) Microwave Workshop and Exhibition In Microwave Exhibition and Workshop, 2007
Abstract
The implementation of MIMO technology on compact mobile terminal devices poses a unique challenge for system designers. This is because it requires that multiple antennas be closely separated in a confined volume, which results in strong mutual coupling among the antennas and high spatial correlation for the signals. In this paper, we present a review on the latest developments of using uncoupled impedance matching networks to counteract performance degradation due to the aforesaid effects. Then, we extend our previous study of utilizing identical uncoupled matching networks to optimize performance by allowing them to be different across the antennas. The numerical examples reveal that the enlarged optimization search space is effective in... (More)
The implementation of MIMO technology on compact mobile terminal devices poses a unique challenge for system designers. This is because it requires that multiple antennas be closely separated in a confined volume, which results in strong mutual coupling among the antennas and high spatial correlation for the signals. In this paper, we present a review on the latest developments of using uncoupled impedance matching networks to counteract performance degradation due to the aforesaid effects. Then, we extend our previous study of utilizing identical uncoupled matching networks to optimize performance by allowing them to be different across the antennas. The numerical examples reveal that the enlarged optimization search space is effective in improving the received power and correlation, whereas only a modest gain in channel capacity is observed. (Less)
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Microwave Exhibition and Workshop, 2007
conference name
Microwave Workshop and Exhibition
project
Radiosystem: MIMO technology in compact multiband antenna systems (Vinnova/SonyEricsson, BKL)
Radiosystem: Fundamental Limits of Compact MIMO Systems (VR, BKL)
language
English
LU publication?
yes
id
6354f12e-386b-4caa-941d-ba231afaa4ba (old id 794737)
date added to LUP
2007-12-27 10:05:47
date last changed
2018-06-11 13:43:36
@inproceedings{6354f12e-386b-4caa-941d-ba231afaa4ba,
  abstract     = {The implementation of MIMO technology on compact mobile terminal devices poses a unique challenge for system designers. This is because it requires that multiple antennas be closely separated in a confined volume, which results in strong mutual coupling among the antennas and high spatial correlation for the signals. In this paper, we present a review on the latest developments of using uncoupled impedance matching networks to counteract performance degradation due to the aforesaid effects. Then, we extend our previous study of utilizing identical uncoupled matching networks to optimize performance by allowing them to be different across the antennas. The numerical examples reveal that the enlarged optimization search space is effective in improving the received power and correlation, whereas only a modest gain in channel capacity is observed.},
  author       = {Lau, Buon Kiong and Tian, Ruiyuan},
  booktitle    = {Microwave Exhibition and Workshop, 2007},
  language     = {eng},
  title        = {Antenna matching for performance optimization in compact MIMO systems},
  year         = {2007},
}