Comparisons of different methods to determine correlation applied to multi-port UWB eleven antenna
Paper in proceedings, 2011

In this paper, we compare different methods to determine correlation. First, we did analytical study on correlation of two parallel dipoles. We present two methods for analytical correlation calculation. In addition, the effect of source impedances is also studied. It is found that these two analytical methods result in the same correlation, and that source impedance matched to embedded element impedance gives the smallest correlation. Then, we compared different methods of determining correlations of multi-port antennas from measurements. Wideband eleven antenna was used for measurements. It is shown that correlation can be determined correctly either using embedded radiation far field functions based on anechoic chamber (AC) measurement (i.e., embedded far field method), or using cross-correlation definition based on reverberation chamber (RC) measurement (i.e., RC method). Scattering parameters (S-parameter) can only be used to determine correlation of lossless multi-port antenna (i.e., S-parameter method). It is also shown that for general lossy antenna, RC method is most convenient to use.

Author

Chen Xiaoming

Chalmers, Signals and Systems, Kommunikationssystem, informationsteori och antenner, Antennas

Per-Simon Kildal

Chalmers, Signals and Systems, Kommunikationssystem, informationsteori och antenner, Antennas

Proceedings of the 5th European Conference on Antennas and Propagation, EUCAP 2011. Rome, 11-15 April 2011

1776-1780

Areas of Advance

Information and Communication Technology

Subject Categories

Electrical Engineering, Electronic Engineering, Information Engineering

ISBN

978-888202074-3

More information

Created

10/6/2017