SLOTTED SURFACE SCATTERING ANTENNAS

摘要

Surface scattering antennas with lumped elements provide adjustable radiation fields by adjustably coupling scattering elements along a waveguide. In some approaches, the scattering elements include slots in an upper surface of the waveguide, and the lumped elements are configured to span the slots provide adjustable loading. In some approaches, the scattering elements are adjusted by adjusting bias voltages for the lumped elements. In some approaches, the lumped elements include diodes or transistors.

主权项

1. An antenna, comprising:
a waveguide; a plurality of subwavelength radiative elements coupled to the waveguide; and a plurality of lumped element circuits coupled to the subwavelength radiative elements and configured to adjust radiation characteristics of the subwavelength radiative elements.