Primary driven by simplicity, like compromise to fit in a cellphone.
You give up a little gain, but most importantly you lose much of the multipath reflection reduction. Reflections from building and other earthly objects reverses to mostly LHCP. Multipath rays can corrupt position accuracy.
Some studies argue the LHCP reflection reduction is overrated as vertical or horizontal metal strips of construction reflects as more linear polarization.
Primary driven by simplicity, like compromise to fit in a cellphone.
You give up a little gain, but most importantly you lose much of the multipath reflection reduction. Reflections from building and other earthly objects reverses to mostly LHCP. Multipath rays can corrupt position accuracy.
Some studies argue the LHCP reflection reduction is overrated as vertical or horizontal metal strips of construction reflects as more linear polarization.