Modern plastic millimeter-wave array antennas

This paper presents two types of millimeter-wave waveguide-type array antennas using low-loss engineering plastics not only to reduce cost but also to obtain high performances. The first one is a post-wall slotted waveguide array antenna with an offset directional beam using a post-wall rectangular waveguide inside a Grafted Olefin-Styrene resin printed circuit board. The other is a Cyclo-Olefin Polymer (COP) waveguide horn array antenna which is fabricated by injection molding process.