Testing system and method with multiple antennas

1. A testing system with multi antennas comprising:

an anechoic chamber for containing a device under test,

at least two feed antennas,

a movable shaped reflector, and

a reflector positioner rotationally coupled to the shaped reflector,

wherein the reflector positioner provides a rotation mechanism that rotates the shaped reflector and directs a focal point of the shaped reflector towards each of the at least two feed antennas, and

wherein the rotation mechanism provided by the reflector positioner allows for rotational movement of the shaped reflector, whereby the shaped reflector rotates along an axis orthogonal to a plane wave front radiated by each of the at least two feed antennas.

2. The system according to claim 1 ,

wherein the device under test, the shaped reflector and the at least two feed antennas are placed inside the anechoic chamber, and/or

wherein each one of the at least two feed antennas substantially points at the shaped reflector.

3. The system according to claim 1 ,

wherein the shaped reflector corresponds to a parabolic compact antenna test range reflector, and/or

wherein the anechoic chamber is a shielded anechoic chamber, and/or

wherein the anechoic chamber is cuboid shaped.

4. The system according to claim 1 ,

wherein the at least two feed antennas are arranged equidistantly from the shaped reflector inside the anechoic chamber.

5. The system according to claim 1 ,

wherein the feed antennas operate at different frequency ranges, wherein a first antenna operates at a range covering 5 to 20 GHz, a second antenna operates at a range covering 18 to 50 GHz, a third antenna operates at a range covering 45 to 90 GHz.

6. The system according to claim 1 ,

wherein the system further comprises a device under test positioner moving the device under test in at least two dimensions.

7. The system according to claim 1 ,

wherein the system further comprises, inside the anechoic chamber, a protective cylindrical wall enclosing the shaped reflector and operably attached to the reflector positioner and/or to the shaped reflector, whereby the reflector positioner synchronously rotates the shaped reflector and the protective cylindrical wall, with the focal point of the shaped reflector pointing at a lateral aperture of the protective cylindrical wall.

8. The device according to claim 7 ,

wherein the protective cylindrical wall is a shielded wall with the outer side made with a metallic material and the inner side includes an absorbing material.

9. The system according to claim 1 ,

wherein at least one of the at least two feed antennas is arranged in a fixture that is removably arranged outside the anechoic chamber walls, and substantially points at the movable shaped reflector through a corresponding aperture in the anechoic chamber.

10. The system according to claim 9 ,

wherein the fixture provides the corresponding feed antenna, manually or automatically, with a pivot movement, and

wherein the feed antennas arranged outside and inside the anechoic chamber walls are located equidistantly from the shaped reflector.

11. A testing method with multiple antennas, comprising:

providing an anechoic chamber for containing a device under test, and

rotating a shaped reflector in the anechoic chamber and directing a focal point of the shaped reflector towards each of at least two feed antennas, whereby rotating the shaped reflector along an axis orthogonal to a plane wave front radiated by each of the at least two feed antennas.

12. The method according to claim 11 ,

wherein the method further comprises placing inside the anechoic chamber the shaped reflector, a reflector positioner and at least two feed antennas substantially pointing at the shaped reflector.

13. The method according to claim 11 ,

wherein the shaped reflector corresponds to a parabolic compact antenna test range reflector and/or

wherein the anechoic chamber is formed as a shielded anechoic chamber and/or

wherein the anechoic chamber is formed as cuboid shaped.

14. The method according to claim 11 ,

wherein the method further comprises arranging the at least two feed antennas inside the anechoic chamber equidistantly from the shaped reflector.

15. The method according to claim 11 ,

wherein the feed antennas are operated at different frequency ranges, wherein a first antenna is formed to operate at a range covering 5 to 20 GHz, a second antenna is formed to operate at a range covering 18 to 50 GHz, a third antenna is formed to operate at a range covering 45 to 90 GHz.

16. The method according to claim 11 ,

wherein the method further comprises moving the device under test in at least two dimensions by using a device under test positioner.

17. The method according to claim 11 ,

wherein the method further comprises the steps of:

enclosing the shaped reflector with a protective cylindrical wall,

attaching the protective cylindrical wall to the reflector positioner and/or to the shaped reflector, and

rotating the shaped reflector and the protective cylindrical wall synchronously, with the focal point of the shaped reflector pointing at a lateral aperture of the protective cylindrical wall.

18. The method according to claim 17 ,

wherein the protective cylindrical wall is formed as a shielded wall with the outer side made with a metallic material and the inner side includes an absorbing material.

19. The method according to claim 11 ,

wherein the method further comprises the steps of:

arranging at least one of the at least two feed antennas in a fixture that is removably arranged outside the anechoic chamber walls, and substantially pointing at the movable shaped reflector through a corresponding aperture in the anechoic chamber, wherein the fixture provides the corresponding feed antenna, manually or automatically, with a pivot movement, and

arranging the feed antennas placed outside and inside the anechoic chamber walls are equidistantly located from the shaped reflector.

20. The system according to claim 1 , wherein the rotational movement of the shaped reflector is implemented in a horizontal manner with respect to its position inside the anechoic chamber.