Frequency selective surface integrated antenna system

• US 5,917,458 A
• Filed: 09/08/1995
• Issued: 06/29/1999
• Est. Priority Date: 09/08/1995
• Status: Expired due to Fees

• Current Assignee: The United States of America As Represented By The Secretary of Agriculture
• Original Assignee: the united states of america as represented by the secretary of the navy
• Inventors: Logan, James C., Rockway, John W., Ho, Thinh Q.
• Primary Examiner(s): Le, Hoanganh T.
• Application Number:
  US08/525,802
• Time in Patent Office: 1,390 Days
• Field of Search: 343/909, 343/770, 343/771, 343/767, 343/769, 343/793, 343/795
• US Class Current: 343/909
• CPC Class Codes: H01Q 1/405 Radome integrated radiating elements
• CPC Class Codes: H01Q 1/425 comprising a metallic grid
• CPC Class Codes: H01Q 15/0013 said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective
• CPC Class Codes: H01Q 9/0407 Substantially flat resonant element parallel to ground plane, e.g. patch antenna dipole H01Q9/285; monopole H01Q9/40
• CPC Class Codes: H01Q 9/285 Planar dipole H01Q9/065 takes precedence; patch antenna H01Q9/0407

Abstract

A frequency selective surface integrated antenna is provided which compri a frequency selective surface, including an electrically non-conductive substrate and an electrically conductive layer, mounted to the substrate and having a pattern of apertures; and an antenna integrated in the frequency selective surface.

Claims

1. A frequency selective surface integrated antenna, comprising:

a radio frequency selective surface including an electrically non-conductive substrate, and an electrically conductive layer mounted to said substrate and having a pattern of apertures;

a first slotline formed in said electrically conductive layer which divides said electrically conductive layer into a ground plane region and a first resonator region electrically isolated from said ground plane region; and

a second slotline formed in said electrically conductive layer which defines a second resonator region electrically isolated from said ground plane region wherein said first and second resonator regions, and said ground plane region define a radio frequency bow-tie antenna integrated in said frequency selective surface.

2. A frequency selective surface integrated antenna, comprising:

a radio frequency selective surface including an electrically non-conductive substrate, and an electrically conductive layer mounted to said substrate and having a pattern of apertures;

a first slotline formed in said electrically conductive layer which divides said electrically conductive layer into said ground plane region and a first resonator region electrically isolated from said ground plane region; and

a second slotline formed in said electrically conductive layer which defines a second resonator region electrically isolated from said ground plane region wherein said first and second resonator regions, and said ground plane region define a radio frequency dipole antenna integrated in said frequency selective surface.

3. A frequency selective surface integrated antenna, comprising:

an electrically non-conductive substrate having first and second opposed surfaces;

a first electrically conductive layer having a first pattern of apertures and mounted to said first opposed surface;

a second electrically conductive layer having a second pattern of apertures and mounted to said second opposed surface, said second electrically conductive layer being electrically isolated from said first electrically conductive layer; and

a first slotline formed in said first electrically conductive layer which divides said first electrically conductive layer into a ground plane region and a resonator region electrically isolated from said ground plane region to define a radio frequency antenna integrated in said first electrically conductive layer.