Cross-polarization in dual polarization switching antennas
This paper presents the effect of the interaction between the switch and the antenna parameters on the cross-polarization of a dual polarization switching antenna. It is shown that the isolated antenna cross-polarization combines with the isolation of the switch giving place to a degradation of the polarization purity of the combined dual polarization switching antenna. Analytical expressions for the combination of the switch isolation and the antenna cross-polarization in the switched antenna element are given. Simulations and pattern measurements are presented. (C) 2007 Wiley Periodicals, Inc.
dual polarization patch antenna radiation patterns polarization agility antenna crosspolarization polarization diversity