Multiband or broadband frequency selective surface

• US 20030142036A1
• Filed: 11/27/2002
• Published: 07/31/2003
• Est. Priority Date: 02/08/2001
• Status: Abandoned Application

• Current Assignee: Sciperio, Inc.
• Original Assignee: Sciperio, Inc.
• Inventors: Daniels, Jeffrey S., Swann, Lance D., Werner, Douglas H., Warren, William L., Werner, Pingjuan L., Wilhelm, Michael John
• Application Number:
  US10/305,793
• Publication Number:
  US 20030142036A1
• Time in Patent Office: Days
• US Class Current: 343/909
• CPC Class Codes: H01Q 1/36 Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewithH01Q1/08, H01Q1/14 take precedence
• CPC Class Codes: H01Q 1/38 formed by a conductive layer on an insulating support patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface H01Q15/142
• CPC Class Codes: H01Q 15/0026 said selective devices having a stacked geometry or having multiple layers

Abstract

A frequency selective surface includes a pattern of electromagnetic material formed on a substrate suspendable over a ground plane for reflecting or transmitting electromagnetic waves at one or more particular frequencies. The frequency selective surface may include one or more meandering line inductors and/or one or more interdigitated capacitors formed within the pattern of electromagnetic materials for adjusting the frequencies at which the electromagnetic waves are reflected or transmitted. The frequency selective surface may also or instead include one or more inductors and/or one or more capacitors arranged in series within the pattern of electromagnetic materials to adjust the frequencies at which the electromagnetic waves are reflected or transmitted. In addition, the pattern of electromagnetic materials may be formed within the substrate in such a manner that the frequencies at which the electromagnetic waves are reflected or transmitted are tunable. The elements of the FSS may include lumped passive or active devices.

Claims