Enclosure with ground plane
A system and method for mounting one or more radio antennas in an outdoor enclosure by placing a ground plane underneath the antennas and above any electrical devices. The ground plane may be used to mount the antennas in any configuration and be coupled to earth ground. In some embodiments, an outdoor enclosure may have a weatherproof radome mounted around the antennas.
1. An enclosure comprising:
a lower equipment housing comprising at least one mounting device for an electrical device, said lower equipment housing being substantially nonconductive and having a plurality of connections through a plurality of openings in a floor plate of said lower equipment housing, each of said plurality of said connections being through each of said plurality of openings of said floor plate;
a ground reference plate mounted substantially horizontally and above said lower equipment housing and electrically connected with earth ground by a cable, said ground reference plate defining a substantially horizontal plane on the upper surface of said ground reference plate, said earth ground comprising a direct connection to the Earth, said ground reference plate being conductive;
at least one antenna mounted above said ground reference plate, said at least one antenna connected to said electrical device through said ground reference plate;
wherein said ground reference plate comprises a substantially flat portion beneath said at least one antenna, said flat portion having a plan area substantially larger than a plan area of said antenna.
2. The enclosure of claim 1 , wherein said electrical device comprises at least one of a group composed of:
an amplifier;
a transformer; and
a power supply.
3. The enclosure of claim 1 , wherein said connection to a network comprises at least one of a group composed of:
a coaxial cable television conductor;
a fiber optic cable television conductor; and
at least one twisted pair conductor.
4. The enclosure of claim 1 , said electrical device comprising a transceiver and being connected to said antenna through said first connection.
5. The enclosure of claim 4 , said transceiver is adapted to send and receive communication signals one of said plurality of connections.
6. The enclosure of claim 5 , one of said plurality of connections comprising a fiber optic linear broadband network.
7. The enclosure of claim 5 , one of said plurality of connections comprising a coaxial linear broadband network.
8. The enclosure of claim 5 , one of said plurality of connections comprising a twisted pair linear broadband network.
9. The enclosure of claim 1 wherein said plan area of said flat portion is at least 50% larger than said plan area of said antenna.
10. The enclosure of claim 1 further comprising:
a hinged door mounted below said ground reference.
11. The enclosure of claim 10 wherein said hinged door is mounted with a hinge axis substantially perpendicular to said plane.
12. The enclosure of claim 1 , wherein said ground reference plate comprises at least one hole.
13. The network interface of claim 1 wherein said plan area of said flat portion is at least 50% larger than said plan area of said antenna.
14. The enclosure of claim 1 , said antenna being a directional antenna.
15. The enclosure of claim 14 further comprising:
a plurality of said directional antennas.
16. The enclosure of claim 15 , said plurality of directional antennas being arranged in a sectorized fashion.
17. The enclosure of claim 1 further comprising:
a radome covering said at least one antenna.
18. The enclosure of claim 17 , said radome being weatherproof.
19. The enclosure of claim 17 , said enclosure comprising a plurality of antennas.
20. The enclosure of claim 19 , at least one of said plurality of antennas being a sectorized antenna.
21. The enclosure of claim 1 , said plan area of said ground reference plate being approximately equal to a plan area of said enclosure.
22. The enclosure of claim 1 , said electrical device being mounted in a vertical manner.
23. A network interface comprising:
a lower equipment housing comprising at least one mounting device for an electrical device, said electrical device comprising an interface to a network, said lower equipment housing being electrically nonconductive, said lower equipment housing having a floor plate with a plurality of openings;
a ground reference plate mounted substantially horizontally above said lower equipment housing and electrically connected with earth ground, said ground reference plate defining a substantially horizontal plane on the upper surface of said ground reference plate, said earth ground comprising a direct connection to the Earth, said ground reference plate being electrically conductive;
a plurality of directional antennas mounted above said ground reference plate, said antennas adapted to send and receive communications to a network subscriber;
a first set of connections through said ground reference plate from each of said plurality of directional antennas to said electrical device; and
a second set of connections through said floor with said plurality of openings to said electrical device, at least one of said second set of connections being a network connection;
wherein said ground reference plate comprises a substantially flat portion beneath said plurality of directional antennas, said flat portion having a plan area substantially larger than a plan area of said antennas.
24. The network interface of claim 23 wherein said electrical device comprises at least one of a group composed of:
an amplifier;
a transformer; and
a power supply.
25. The network interface of claim 23 wherein said interface to said network comprises a coaxial linear broadband network.
26. The network interface of claim 23 wherein said interface to said network comprises a fiber optic linear broadband network.
27. The network interface of claim 23 wherein said interface to said network comprises at least one twisted pair linear broadband network.
28. The enclosure of claim 23 , said plurality of directional antennas being arranged in a sectorized fashion.