Patent ID: 9450304
Filing Date: 2016-09-20
CPC Classification: H01Q

Claim Text:
1. A directable antenna, the directable antenna comprising: an omnidirectional antenna at a center of the directable antenna; a frequency selective surface that surrounds the center, the frequency selective surface comprising multiple columns of frequency selective material; a first metallic plate located at a first end of the frequency selective surface perpendicular to an axis of the frequency selective surface; a second metallic plate located at a second end of the frequency selective surface perpendicular to the axis of the frequency selective surface; a first cone extending away from the first metallic plate; and a second cone extending away from the second metallic plate; wherein the frequency selective surface is divided into at least two sections, the at least two sections comprising frequency selective material that allows a section of the at least two sections to either block or allow transmission of electromagnetic waves, depending on a state of active elements.