Method of installing artificial impedance surface antennas for satellite media reception
AssigneeHRL Laboratories, LLC
InventorsDaniel J. Gregoire, Joseph S. Colburn
Life of this patent
Estimating the term…
Abstract
A method for fabricating and installing an artificial impedance surface antenna (AISA) includes locating a substantially flat surface having a line of sight to a satellite or satellites of interest, determining an angle θo between a normal to the substantially flat surface and a direction to the satellite or satellites of interest, selecting an antenna superstrate from a pre-fabbed stock of antenna superstrates, the selected antenna superstrate configured for having a peak radiation within two (2) degrees of the angle θo, laminating the selected antenna superstrate to an antenna substrate to form the AISA, and mounting the AISA on the substantially flat surface.
Claims23
A method for fabricating and installing an artificial impedance surface antenna (AISA) comprising:
- locating a substantially flat surface having a line of sight to a satellite or satellites of interest;
- determining an angle θo between a normal to the substantially flat surface and a direction to the satellite or satellites of interest;
- selecting an antenna superstrate from a pre-fabbed stock of antenna superstrates, the selected antenna superstrate configured for having a peak radiation within two (2) degrees of the angle θo;
- laminating the selected antenna superstrate to an antenna substrate to form the AISA;
- and
- mounting the AISA on the substantially flat surface.
A method for fabricating and installing an artificial impedance surface antenna (AISA) comprising:
- an installer locating a substantially flat surface having a line of sight to a satellite or satellites of interest;
- the installer determining an angle θo between a normal to the substantially flat surface and a direction to the satellite or satellites of interest, and informing a vendor of the angle θo;
- the vendor fabricating an AISA configured for the angle θo, and shipping the AISA to the installer;
- and
- the installer mounting the AISA on the substantially flat surface.
A method for fabricating and installing an artificial impedance surface antenna (AISA) comprising:
- an installer locating a substantially flat surface having a line of sight to a satellite or satellites of interest;
- the installer determining an angle θo between a normal to the substantially flat surface and a direction to the satellite or satellites of interest;
- the installer printing metallic patches on an antenna superstrate, wherein the metallic patches are configured with a size and spacing in order to implement the equation
- Zsw(x,y)=X+M cos(ko(nor−x sin θo))
- where x, y are the coordinates of a point on the flat surface,
- where X is the mean impedance,
- where M is the impedance variation,
- where ko=2πfo/c, where fo is the design frequency,
- where no=(1+(X/377)2)1/2 is the mean surface wave index, and
- where r=(x2+y2)1/2.
- the installer laminating the antenna superstrate to an antenna substrate to form the AISA;
- and
- the installer mounting the AISA on the substantially flat surface.
Dependencies are inferred from the claim text.