Phased Array Antenna Panel Having Quad Split Cavities Dedicated to Vertical-Polarization and Horizontal-Polarization Antenna Probes

摘要

A phased array antenna panel includes a substrate over a metallic base, a semiconductor die situated over the substrate, the semiconductor die being coupled to a vertical-polarization antenna probe and to a horizontal-polarization antenna probe, where the vertical-polarization antenna probe is situated over a dedicated vertical-polarization cavity, and where the horizontal-polarization antenna probe is situated over a dedicated horizontal-polarization cavity. The dedicated vertical-polarization cavity and the dedicated horizontal-polarization cavity reduce coupling between the vertical-polarization antenna probe and the horizontal-polarization antenna probe. The semiconductor die also includes a radio frequency (RF) front end circuit coupled to the vertical-polarization antenna probe and the horizontal-polarization antenna probe.