POLYMER-BASED DIPOLE RADIATING ELEMENTS WITH GROUNDED COPLANAR WAVEGUIDE FEED STALKS AND CAPACITIVELY GROUNDED QUARTER WAVELENGTH OPEN CIRCUITS

A cross-dipole radiating element includes first and second polymer-based coplanar waveguide feed stalks, and first and second pairs of polymer-based radiating arms, which are supported by and electrically coupled to the first and second coplanar waveguide feed stalks. These polymer-based feed stalks and radiating arms are configured as a unitary polymer substrate, which is selectively metallized to define a cross-dipole radiating element. The first and second feed stalks may be configured as finite grounded coplanar waveguide (GCPW) feed stalks, which are spaced-apart from each other on an underlying polymer base. The unitary polymer substrate may include the polymer base.