Conformal Parallel Plate Waveguide Polarizer Integrated in a Geodesic Lens Antenna

Here, we propose a low-profile polarizing technique integrated in parallel plate waveguide (PPW) configuration, compatible with fully metallic geodesic lens antennas. The shape of the antenna is chosen to resemble operation Luneburg lens. fed 11 ports 10° separation producing switchable beams an angular range $\pm \mathrm{50}^{\circ }$ . Two screens are loaded into aperture rotate electric field from vertical linear polarization, which polarization transverse electromagnetic (TEM) mode supported lens, notation="LaTeX">$+ \mathrm{45}^{\circ polarization. Since unit cells antenna, final design compact. In addition, size about notation="LaTeX">$0.55\lambda $ at central frequency making suitable produce array formed stacked lenses. A prototype notation="LaTeX">$\text{K}_{\text {a}}$ -band was manufactured and tested, verifying performance obtained simulations.