Calculating signal correlation in lossy dipole arrays using scattering parameters and efficiencies
2013 (English)In: 2013 7th European Conference on Antennas and Propagation, EuCAP 2013, EurAAP , 2013, 519-523 p.Conference paper (Refereed)
Correlation coefficient, as a critical performance metric of multiple antenna systems, can be calculated from the 3D radiation patterns of the antennas for multipath environments with uniform 3D angular power spectrum. A simpler, faster and lower cost approach uses the antennas' scattering parameters to determine correlation coefficient. However, the method assumes lossless antennas, and hence only achieves good accuracy for antennas with high radiation efficiencies. In this work, a method for calculating correlation coefficients in lossy dipole arrays is proposed, using only the scattering parameters and radiation efficiencies. The method is based on the equivalent circuit of antennas, and it gives a significantly better estimate of the correlation coefficient than the existing methods. The proposed method is also applied to two folded monopole antennas in a compact terminal to demonstrate its effectiveness.
Place, publisher, year, edition, pages
EurAAP , 2013. 519-523 p.
antenna array, antenna measurements, correlation coefficient, MIMO systems, mutual coupling
Other Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-133884ScopusID: 2-s2.0-84881268785ISBN: 978-889070183-2OAI: oai:DiVA.org:kth-133884DiVA: diva2:663835
7th European Conference on Antennas and Propagation, EuCAP 2013; Gothenburg; Sweden; 8 April 2013 through 12 April 2013
QC 201311132013-11-132013-11-112013-11-19Bibliographically approved