Some limitations of evaluating dual-polarized MIMO channel capacity

• Main Authors: О.О. Мартинчук, Г.М. Зубрицький, Лі Сюань
• Format: Article
• Language: English
• Published: Ivan Kozhedub Kharkiv National Air Force University 2020-06-01
• Series: Системи обробки інформації
• Subjects: snr, snir, dual polarization channels, channel capacity, cross polar discrimination.
• Online Access: https://journal-hnups.com.ua/index.php/soi/article/view/289

This article discusses possible bandwidth limitations of a radio access channel using MIMO technology with polarization-orthogonal channels, or dual polarization channels. The main attention is paid to the presence of cross-polarization isolation between channels, or cross-polarization relation, or Cross Polar Discrimination. The indicated ratio is determined mainly by the design features of the antennas. It is proposed to choose antennas with the minimum required values of cross-polarization ratio, which limit a given channel bandwidth.