Coverage antenna apparatus with selectable horizontal and vertical polarization elements
An antenna apparatus comprises selectable antenna elements including a plurality of dipoles and/or a plurality of slot antennas (“slot”). Each dipole and/or each slot provides gain with respect to isotropic. The dipoles may generate vertically polarized radiation and the slots may generate horizontally polarized radiation. Each antenna element may have one or more loading structures configured to decrease the footprint (i.e., the physical dimension) of the antenna element and minimize the size of the antenna apparatus.
1. An antenna apparatus, comprising:
a first substrate,
a second substrate perpendicular to the first substrate and electrically coupled to a first edge of the first substrate,
a third substrate perpendicular to the first substrate and electrically coupled with a second edge of the first substrate, the first edge and the second edge of the first substrate are opposite with respect to each other, and
a fourth substrate perpendicular to the first substrate and electrically coupled to a third edge of the first substrate, wherein each of the substrates include one or more antenna elements from a plurality of antenna elements and the one or more antenna elements are selected by an antenna element selector thereby providing a particular polarization and customizable radiation pattern for the antenna apparatus to transmit or receive RF signals based on the antenna elements selected.
2. The antenna apparatus of claim 1 , wherein the plurality of antenna elements of the first substrate includes one or more of a first slot antenna, a first dipole antenna and a second dipole antenna.
3. The antenna apparatus of claim 1 , wherein the antenna element of the second substrate includes a second slot antenna.
4. The antenna apparatus of claim 1 , wherein the antenna element of the third substrate includes a third slot antenna.
5. The antenna apparatus of claim 1 , wherein the plurality of antenna elements of the fourth substrate includes a third dipole antenna and a fourth dipole antenna.
6. The antenna apparatus of claim 1 , wherein the antenna elements of the antenna apparatus includes structures that reduce the size of the antenna apparatus.
7. The antenna apparatus of claim 1 , wherein the antenna elements of the antenna apparatus include structures that minimize the size of the antenna apparatus.
8. The antenna apparatus of claim 1 , wherein the fourth substrate further includes a director and a reflector.
9. The antenna apparatus of claim 8 , wherein the director constrains a directional radiation pattern of antenna elements associated with the fourth substrate.
10. The antenna apparatus of claim 8 , wherein the reflector broadens a frequency response of the antenna elements associated with the fourth substrate.
11. The antenna apparatus of claim 1 , wherein the antenna element selector selects one or more of the antenna elements to provide polarization that is horizontal, vertical or diagonal.
12. The antenna apparatus of claim 1 , wherein the antenna apparatus operates at different frequencies and bandwidths based on the antenna elements of the antenna apparatus having varying dimensions.
13. A method of manufacturing the antenna apparatus of claim 1 , comprising:
forming the first substrate, the second substrate, the third substrate and the fourth substrate from one or more printed circuit boards (PCBs), each having corresponding tabs and slits for coupling the substrates together, wherein the first substrate has one tab on the first edge and one tab on the second edge of the first substrate and a slit on the third edge of the first substrate; and the second substrate, the third substrate and the fourth substrate each has one slit, the slit for the second substrate, the third substrate and the fourth substrate affixed to the respective tab or slit of the first substrate;
partitioning the first substrate, the second substrate, the third substrate and the fourth substrate from the one or more PCBs; and
coupling the first substrate, the second substrate, the third substrate and the fourth substrate by:
orienting the second substrate perpendicular to the first substrate and affixing the second substrate to the first substrate by using the tab on the first edge of the first substrate and the slit of the second substrate;
orienting the third substrate perpendicular to the first substrate and affixing the third substrate to the first substrate by using the tab on the second edge of the first substrate and the slit of the third substrate; and
orienting the fourth substrate perpendicular to the first substrate and affixing the fourth substrate to the first substrate by using the slit on the third edge of the first substrate and the slit of the fourth substrate.
14. The method of manufacturing of claim 13 , wherein the affixing of the substrates is performed using solder, conductive glue, or a combination of conductive glue and solder.
15. The method of manufacturing of claim 13 , wherein the width of the slits of the second substrate and the width of the slits of the third substrate are the same width as the thickness of the first substrate.