Phase shifter assembly

1. A phase shifter assembly, comprising:

a first phase shifter including a first through-hole;

a second phase shifter including a second through-hole and disposed at a side of the first phase shifter;

a first gear including a third through-hole and disposed at a side of the second phase shifter facing away from the first phase shifter, wherein the first through-hole, the second through-hole, and the third through-hole are aligned with each other;

a rack configured to drive, through driving the first gear, the second phase shifter to move relative to the first phase shifter, to adjust an electrical tilt angle of an antenna corresponding to the phase shifter assembly; and

a first reversing mechanism disposed between the first gear and the rack and engaged with the first gear and the rack, respectively, making a direction of a component of a linear velocity at an electrical contact between the first phase shifter and the second phase shifter in a moving direction of the rack opposite to the moving direction of the rack.

2. The phase shifter assembly according to claim 1 , wherein:

the reversing mechanism includes an odd number of gears.

3. The phase shifter assembly according to claim 2 , wherein:

the reversing mechanism includes one gear.

4. The phase shifter assembly according to claim 1 , wherein:

the first gear and the second phase shifter are integrally formed.

5. The phase shifter assembly according to claim 1 , further comprising:

a third phase shifter including a fourth through-hole;

a fourth phase shifter including a fifth through-hole and disposed at a side of the third phase shifter;

a second gear including a sixth through-hole and disposed at a side of the fourth phase shifter facing away from the third phase shifter, wherein the fourth through-hole, the fifth through-hole, and the sixth through-hole are aligned with each other; and

a second revering mechanism disposed between the second gear and the rack and engaged with the second gear and the rack, respectively, making a direction of a component of a linear velocity at an electrical contact between the third phase shifter and the fourth phase shifter in the moving direction of the rack opposite to the moving direction of the rack,

wherein the rack is configured to drive, through driving the second gear, the fourth phase shifter to move relative to the third phase shifter, to adjust the electrical tilt angle of the antenna corresponding to the phase shifter assembly.

6. The phase shifter assembly according to claim 5 , wherein:

a combination of the first phase shifter, the second phase shifter, the first gear, and the first reversing mechanism and a combination of the third phase shifter, the fourth phase shifter, the second gear, and the second reversing mechanism are arranged mirror-symmetrically with respect to the rack.

7. The phase shifter assembly according to claim 5 , wherein:

a combination of the first phase shifter, the second phase shifter, the first gear, and the first reversing mechanism and a combination of the third phase shifter, the fourth phase shifter, the second gear, and the second reversing mechanism are arranged in an array on a same side of the rack.

8. The phase shifter assembly according to claim 1 , further comprising:

a first screw and a first nut, wherein the first screw passes through the first through-hole, the second through-hole, and the third through-hole to couple with the first nut to provide a fastening force among the first phase shifter, the second phase shifter, and the first gear.

9. The phase shifter assembly according to claim 8 , wherein:

at least a portion of a cross-section of the first screw is a first D-shaped cross-section; and

at least one of the second through-hole or the third through-hole includes a second D-shaped cross-section matching the first D-shaped cross-section.

10. The phase shifter assembly according to claim 8 , wherein:

the first screw includes an elastic pressing member configured to deform elastically to provide an adjustable fastening force among the first phase shifter, the second phase shifter, and the first gear.

11. The phase shifter assembly according to claim 10 , wherein:

the elastic pressing member includes multiple cantilever elastic structures evenly distributed along a circumferential direction around a center position of the first nut.

12. The phase shifter assembly according to claim 10 , wherein:

the elastic pressing member includes a ratchet buckle;

the first gear includes at least one recess around the third through-hole; and

the ratchet buckle is mechanically coupled with one of the at least one recess.

13. The phase shifter assembly according to claim 1 , wherein:

the first gear includes a bridge elastic member associated with a pathway of the first phase shifter and/or the second phase shifter to apply a force on the second phase shifter toward the first phase shifter.

14. The phase shifter assembly according to claim 13 , wherein:

the bridge elastic member includes a 1-bridge elastic member, a 2-bridge elastic member, or an N-bridge elastic member.

15. The phase shifter assembly according to claim 1 , further comprising: a support member configured to support the rack and the first reversing mechanism, wherein:

the first gear includes an end elastic member at an end facing away from the third through-hole; and

the end elastic member is coupled with the support member, and the support member presses the second phase shifter on the first phase shifter through the end elastic member.

16. The phase shifter assembly according to claim 1 , further comprising:

a shield surrounding the first phase shifter and the second phase shifter.