### Abstract

A simple closed-form equation to calculate the envelope correlation between any two receiver or transmitter antennas in a multi-input multi-output (MIMO) system of an arbitrary number of elements is derived. The equation uses the scattering parameters obtained at the antenna feed point to calculate the envelope correlation coefficient. This approach has the advantage that it does not require knowledge of the antenna radiation pattern. Numerical data that include conductor and permittivity loss are shown to validate the approach. Using the scattering parameters for calculating the envelope correlation is less laborious and relatively cheaper, as compared to the radiation pattern approach.

Original language | English |
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Journal | Microwave & Optical Technology Letters |

Volume | 48 |

Issue number | 5 |

Pages (from-to) | 832-834 |

ISSN | 0895-2477 |

Publication status | Published - 2006 |

### Keywords

- scattering parameters
- MIMO
- envelope correlation

## Cite this

Thaysen, J., & Jakobsen, K. B. (2006). Envelope correlation in (N, N) MIMO antenna array from scattering parameters.

*Microwave & Optical Technology Letters*,*48*(5), 832-834.