Enclosure for radio, parabolic dish antenna, and side lobe shields
Enclosures for radios, parabolic dish antennas, and side lobe shields are provided herein. A dish antenna includes a parabolic circular reflector bounded by a side lobe shield that extends along a longitudinal axis of the dish antenna in a forward direction forming a front cavity, and a sidewall that extends along the longitudinal axis of the dish antenna in a rearward direction forming a rear cavity.
1. A tower, comprising:
a plurality of receivers or transceivers disposed in proximity to one another on the tower, each of the plurality of receivers or transceivers comprising a dish antenna, the dish antenna comprising:
a parabolic circular reflector bounded by a side lobe shield that extends along a longitudinal axis of the dish antenna in a forward direction forming a front cavity, and a sidewall that extends along the longitudinal axis of the dish antenna in a rearward direction forming a rear cavity, the side lobe shield being configured to reduce transmission of side lobe radiation, as well as reduce receipt of side lobe radiation emitted by adjacent ones of the plurality of receivers or transceivers, wherein the rear cavity receives a printed circuit board assembly, the rear cavity being defined by a sidewall that extends in an opposing direction from a back surface of the parabolic circular reflector, a mounting surface being disposed within the rear cavity, the printed circuit board assembly being recessed inside the rear cavity and coupled to the mounting surface.
2. The tower according to claim 1 , wherein the dish antenna is manufactured as a monolithic structure.
3. The tower according to claim 1 , further comprising a radio associated with the dish antenna.
4. The tower according to claim 1 , wherein the printed circuit board assembly generates signals that are directed through a wave guide that is disposed in a center of the dish antenna, the printed circuit board assembly being disposed in the rear cavity in such a way that the printed circuit board assembly and the wave guide are placed in close proximity to the parabolic circular reflector.
5. The tower according to claim 4 , wherein the parabolic circular reflector includes an annular mounting ring and the wave guide is received within the annular mounting ring.
6. The tower according to claim 5 , wherein the wave guide is tubular and extends along the longitudinal axis of the dish antenna.
7. The tower according to claim 6 , further comprising a circular dielectric plate configured to mate with the wave guide in such a way that the dielectric plate is spaced apart from an upper surface of the dish antenna.
8. The tower according to claim 7 , further comprising a reflector dish that is disposed on top of the dielectric plate.
9. The tower according to claim 8 , further comprising a radome cover that encloses the reflector dish, the dielectric plate, and the wave guide within the front cavity of the dish antenna formed by the upper surface of the dish antenna and the side lobe shield, wherein the radome cover mates with the side lobe shield.
10. The tower according to claim 1 , further comprising a back cover that encloses the printed circuit board assembly within the rear cavity.
11. The tower according to claim 10 , further comprising a heat spreader that is coupled to the printed circuit board assembly.
12. The tower according to claim 1 , wherein the front cavity is provided with a metallic coating.
13. The tower according to claim 1 , further comprising a microwave absorbing material that coats an inner surface of the side lobe shield.
14. The tower according to claim 1 , further comprising a series of fins that extend upwardly from the sidewall of the rear cavity along an underside of the parabolic circular reflector.
15. A tower, comprising:
a plurality of receivers or transceivers disposed in proximity to one another on the tower, each of the plurality of receivers or transceivers comprising a dish antenna, the dish antenna comprising:
a parabolic circular reflector bounded by a side lobe shield that extends along a longitudinal axis of the dish antenna in a forward direction forming a front cavity, and a sidewall that extends along the longitudinal axis of the dish antenna in a rearward direction forming a rear cavity, all manufactured as a monolithic structure, wherein the rear cavity receives a printed circuit board assembly, the rear cavity being defined by a sidewall that extends in an opposing direction from a back surface of the parabolic circular reflector, a mounting surface being disposed within the rear cavity, the printed circuit board assembly being recessed inside the rear cavity and coupled to the mounting surface.
16. A dish antenna, comprising:
a printed circuit board assembly;
a parabolic circular reflector bounded by a side lobe shield that extends along a longitudinal axis of the dish antenna in a forward direction forming a front cavity; and
a sidewall that extends along the longitudinal axis of the dish antenna in a rearward direction forming a rear cavity, wherein the rear cavity receives the printed circuit board assembly, the rear cavity being defined by a sidewall that extends in an opposing direction from a back surface of the parabolic circular reflector, a mounting surface being disposed within the rear cavity, the printed circuit board assembly being recessed inside the rear cavity and coupled to the mounting surface.