Apparatus and assembling method of a dual polarized agile cylindrical antenna array with reconfigurable radial waveguides

摘要

Embodiments are provided for an agile antenna that beamsteers radio frequency (RF) signals by selectively activating/de-activating tunable elements on radial-waveguides using direct current (DC) switches. The agile antenna device comprises a first radial waveguide structure encased in a first frame, a first line feed connected to the first waveguide structure, a second encased radial waveguide structure similar and coupled to the first waveguide structure. The two waveguide structures include the tunable elements controlled by the DC switches. A second line feed is connected to the second waveguide structure. The two line feeds provide the RF signal to the antenna. The antenna device also includes a plurality of radiating elements positioned between the first radial waveguide structure and the second radial waveguide structure, and distributed radially around a circumference of the first radial waveguide structure and a circumference of the second radial waveguide structure.

主权项

1. An antenna device comprising:
a first reconfigurable radial waveguide structure; a first line feed connected at substantially a center of a surface of the first reconfigurable radial waveguide structure; a second reconfigurable radial waveguide structure coupled to the first reconfigurable radial waveguide structure, wherein the second reconfigurable radial waveguide structure is substantially parallel to and faces the first reconfigurable radial waveguide structure; a second line feed connected at substantially a center of a surface of the second reconfigurable radial waveguide structure, wherein the first line feed of the first reconfigurable radial waveguide structure faces the second line feed of the second reconfigurable radial waveguide structure; a plurality of radiating elements positioned between the first reconfigurable radial waveguide structure and the second reconfigurable radial waveguide structure, and distributed radially around a circumference of the first reconfigurable radial waveguide structure and a circumference of the second reconfigurable radial waveguide structure; and a plurality of direct current (DC) switches coupled to the first reconfigurable radial waveguide structure and the second reconfigurable radial waveguide structure, and configured to switch selected tunable elements in a plurality of tunable elements in the first reconfigurable radial waveguide structure and the second reconfigurable radial waveguide structure.