The Capacity of Matched Compact Linear Antenna Arrays

Measuring the performance of compact MIMO receive antennas is always a critical issue in wireless communication studies. Plenty of work has been done to improve the system performance including introducing proper matching networks at the receive end. In this paper, we derive a network MIMO system model from Z-parameter point of view containing arbitrary matching networks. It is the first time that system level simulations of MIMO capacity of N x N (N  2) configuration with various matching networks have been examined. The MIMO performance can always be improved for large system configurations by introducing suitable matching networks for compact antenna arrays. (5 pages)