| 摘要 |
<p>A planar millimeter wave antenna is described formed of a sandwich structure having an upper planar phased array made from an etched metallized layer of dielectric material and a lower metallized dielectric layer having a guided wave feed. With the upper and lower dielectric layers forming parallel plate waveguides which are coupled to each other at a boundary zone having a parabolic reflector whereby millimeter waves are coupled between the waveguides with a desired distribution in the upper waveguide so as to enable the formation of a desired antenna beam from the phased array. Multiple feeds are described and spaced from the parabolic axis in order to create different azimuthal beams which have a desired angular spacing from each other. A circular polarized phased array formed of angled slits is described for the upper metallized layer.</p> |
