Patch array antenna

• US 4,450,449 A
• Filed: 02/25/1982
• Issued: 05/22/1984
• Est. Priority Date: 02/25/1982
• Status: Expired due to Fees

• Current Assignee: Honeywell Incorporated (Honeywell International Inc.)
• Original Assignee: Honeywell Incorporated (Honeywell International Inc.)
• Inventors: Jewitt, Harold S.
• Primary Examiner(s): Lieberman, Eli
• Application Number:
  US06/352,490
• Time in Patent Office: 817 Days
• Field of Search: 343/700 MS, 343/829, 343/830, 343/846, 343/853
• US Class Current: 343/700.0MS
• CPC Class Codes: H01Q 21/065 Patch antenna array
• CPC Class Codes: H01Q 5/42 using two or more imbricated arrays H01Q5/49 takes precedence
• CPC Class Codes: H01Q 9/0407 Substantially flat resonant element parallel to ground plane, e.g. patch antenna dipole H01Q9/285; monopole H01Q9/40

Abstract

An antenna comprising, in combination: a first nonconductive substrate; a conductive ground plane on one surface of the substrate; a plurality of conductive patches mutually spaced in an array extending over the other surface of the substrate; conductors for energizing said patches to comprise a first antenna with said ground plane; a second nonconductive substrate overlying said plurality of patches; a second plurality of conductive patches mutually spaced in a second array extending over the outer surface of the second substrate, and positioned in the spaces between the patches of the first array; and conductors for energizing the second plurality of patches to comprise a second antenna with said ground plane.

Claims

1. An antenna comprising, in combination:

a first nonconductive substrate;

a conductive ground plane on one surface of said substrate;

a plurality of conductive patches mutually spaced in an array extending over the other surface of said substrate;

means for conductively energizing said patches to comprise a first antenna with said ground plane;

a second nonconductive substrate overlying said plurality of patches;

a second plurality of conductive patches mutually spaced in a second array extending over the outer surface of said second substrate, and positioned in the spaces between the patches of said first array;

and means for conductively energizing said second plurality of patches to comprise a second antenna with said ground plane.

2. An antenna according to claim 1 in which said second substrate includes apertures in line with the patches of said first array.

3. An antenna according to claim 1 in which said second substrate includes a ground plane comprising a further plurality of conductive patches aligned with the pathces of said second array.

4. An antenna according to claim 1 in which said arrays are fed with inputs of different polarizations.

5. An antenna according to claim 1 in which said arrays are energized with inputs of different frequencies.

6. An antenna according to claim 1 in which said substrates are of the same thickness.