Seasonal Variations of Polarization Diversity Gain in a Vegetated Area considering High Elevation Angles and a Nomadic User

Figure 1

The measurement system in detail. One RHCP and one LHCP continuous wave signals at frequencies and , respectively, are transmitted and their orthogonal components with a linear polarization are received by a dual-linearly-polarized patch antenna. An H-hybrid coupler then creates RHCP and LHCP signals at its output ports so that the copolarized (co-pol.) and cross-polarized (x-pol.) components of the transmitted signals can be detected by the four-channel receiver (CH1–CH4).