Rotating antenna steering mount
View Patent ↗An antenna steering mount includes two basic building blocks which are joined together to form any of the known steering-axis combinations. Each block includes a cylinder cut at an angle to form a cylindrical wedge. The wedges are joined together by bearings at their interface, and motors are used to counter rotate the two wedges relative to each other. One end of the complete assembly is attached to a mounting platform, and the other end includes mounting features for attaching an antenna dish thereto. Various two- and three-axis steering configurations are disclosed including combinations of azimuth, elevation, cross-elevation, and cross-level steering.
1. An antenna mount comprising:
a base;
a first bearing structure supported by the base;
a first wedge-shaped body having a first end mounted on the first bearing structure and a second end at a first acute wedge angle to the first end;
a second bearing structure mounted on the second end of the first wedge-shaped body;
a second wedge-shaped body mounted on the second bearing structure, having a first end parallel to the second end of the first wedge-shaped body and a second end at a second acute wedge angle to the first end of the second wedge-shaped body;
a first motor for rotating the first wedge-shaped body relative to the base; and
a second motor for rotating the second wedge-shaped body relative to the first wedge-shaped body.
2. The antenna mount according to claim 1 , wherein the first acute wedge angle is between 20° and 70°.
3. The antenna mount according to claim 1 , wherein the first and second acute wedge angles are equal, and between 25° and 45°.
4. The antenna mount according to claim 2 , wherein the first and second acute wedge angles add up to a combined angle between 40° and 90°.
5. The antenna mount according to claim 1 , further comprising;
a third wedge-shaped body having a first end parallel to the second end of the second wedge-shaped body and a second end at a third acute wedge angle to the first end of the third wedge-shaped body;
a third bearing structure between the second and third wedge-shaped bodies; and
a third motor for rotating the third wedge-shaped body relative to the second wedge-shaped body.
6. The antenna mount according to claim 1 , further comprising:
a third bearing structure mounted on the second end of the second wedge-shaped body;
a third wedge-shaped body having a first end mounted on the third bearing structure, and a second end at a third acute wedge angle to the first end of the third wedge-shaped body;
a third motor for rotating the third wedge-shaped body relative to the second wedge-shaped body;
a fourth wedge-shaped body having a first end parallel to the second end of the third wedge-shaped body and a second end at a third acute wedge angle to the first end of the fourth wedge-shaped body;
a fourth bearing structure between the third and fourth wedge-shaped bodies; and
a fourth motor for rotating the fourth wedge-shaped body relative to the third wedge-shaped body.
7. The antenna mount according to claim 6 , further comprising an antenna mounted on the second end of the fourth wedge-shaped body.
8. The antenna mount according to claim 1 , further comprising:
a third wedge-shaped body having a first end mounted on the base, and a second end at a third acute wedge angle to the first end of the third wedge-shaped body;
a third bearing structure between the base and the first end of the third wedge-shaped body;
a fourth wedge-shaped body having a first end parallel to the second end of the third wedge-shaped body and a second end at a third acute wedge angle to the first end of the fourth wedge-shaped body;
a fourth bearing structure between the third and fourth wedge-shaped bodies; and
a third motor for rotating the third and fourth wedge-shaped bodies relative to the base.
9. The antenna mount according to claim 8 , further comprising an antenna mounted on the second end of the second wedge-shaped body.
10. The antenna mount according to claim 1 , further comprising:
an electrical slip ring mounted between the base and the first wedge-shaped body;
a first power cord extending through the base to the electrical slip ring; and
a second power cord extending from the electrical slip ring through the first wedge-shaped body to the second motor.
11. The antenna according to claim 1 , further comprising:
an antenna mounted on the second wedge-shaped body for transmitting and/or receiving signals;
an signal control center mounted adjacent to the antenna for processing the signals received or transmitted by the antenna;
an electrical slip ring mounted between the base and the first wedge-shaped body;
a first power cord extending through the base to the electrical slip ring; and
a second power cord extending from the electrical slip ring through the first and second wedge-shaped bodies to the second motor.
12. The antenna according to claim 1 , further comprising:
an antenna mounted on the second wedge-shaped body for transmitting and/or receiving signals;
an signal control center mounted remote from the antenna for processing the signals received or transmitted by the antenna;
an rotary joint mounted between the base and the first wedge-shaped body;
a data cable extending from the signal control center, through the base to the rotary joint; and
a second data cable extending from the rotary joint through the first and second wedge-shaped bodies to the antenna.
13. The antenna according to claim 1 , further comprising:
an antenna mounted on the second wedge-shaped body for transmitting and/or receiving signals, the antenna having a center of gravity rotatable about an elevation axis; and
counter weights extending from the antenna on an opposite side of the elevation axis to the antenna's center of gravity to reduce the torque required from the first and second motors.
14. The antenna mount according to claim 1 , further comprising:
a first rotating body rotatably mounted on the base about a first axis;
a third bearing structure between the base and the first rotating body;
a third motor for rotating the first rotating body relative to the base;
wherein the first wedge-shaped body is rotatably mounted on the first rotating body via the first bearing structure about a second axis perpendicular to the first axis.