Processing

Please wait...

Settings

Settings

Goto Application

1. WO2016153749 - CIRCULAR BASE STATION ANTENNA ARRAY AND METHOD OF RECONFIGURING A RADIATION PATTERN

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

[ EN ]

CLAIMS

1. A reconfigurable base station antenna system comprising:

a base station antenna including at least one antenna panel connected to a support structure, wherein each of the at least one antenna panels include at least two antenna columns; wherein each of the at least two antenna columns includes at least one antenna element; and a feeder network coupled to at least one of the at least two antenna columns of each of the at least one antenna panels, the feeder network being configured to cause the base station antenna to form a first quasi-omnidirectional radiation pattern.

2. The system of claim 1, wherein the feeder network uses more than one of the at least two antenna columns of each of the at least one antenna panels to cause a change from the first quasi-omni directional radiation pattern to another radiation pattern.

3. The system of claim 1, wherein the feeder network is configured to change the first quasi-omnidirectional radiation pattern to another radiation pattern different from the first quasi-omnidirectional radiation pattern.

4. The system of claim 3, wherein the another radiation pattern is a second quasi-omni directional radiation pattern.

5. The system of claim 3, wherein the another radiation pattern is of a different type from the first quasi-omnidirectional radiation pattern.

6. The system of claim 3, wherein the feeder network is configured to change the first quasi-omnidirection to another radiation pattern by changing an amplitude of one or more signals applied to the base station antenna.

7. The system of claim 3, wherein the feeder network is configured to change the first quasi-omni direction to another radiation pattern by changing a phase of one or more of the signals applied to the base station antenna.

8. The system of claim 7, wherein the feeder network includes at least two cables of different lengths configured to provide a 120 degree phase difference between signals of one of the at least two antenna columns of one of the at least one antenna panels, and signals of one of the at least one of the at least two antenna columns of another of the at least one antenna panels.

9. The system of claim 7, wherein the feeder network includes a Butler matrix configured to provide a 120 degree phase difference between signals of one of the least two antenna columns of one of the at least one antenna panels, and signals of at least one of the at least two antenna columns of another of the at least one antenna panels.

10. The system of claim 3, wherein the feeder network is configured to change the first quasi-omnidirectional radiation pattern to another radiation pattern by changing one or more antenna ports to which one or more of the signals is applied to the base station antenna.

11. The system of claim 1 , wherein the first quasi-omnidirectional radiation pattern includes one or more maxima or one or more nulls at one or more predetermined positions.

12. The system of claim 1, wherein the first quasi-omnidirectional radiation pattern includes a single null.

13. The system of claim 1, wherein the base station antenna includes more than two antenna panels.

14. A method for reconfiguring a radiation pattern of a base station antenna, the method comprising:

coupling one or more transceivers to at least one of at least two antenna columns of at least one antenna panel of the base station antenna, each of the at least two antenna columns comprising one or more antenna elements; and

configuring a feeder network coupled between the one or more transceivers and the base station antenna to form a first quasi-omnidirectional radiation pattern at the base station antenna.

15. The method of claim 14, wherein the configuring comprises configuring the feeder network to couple the one or more transceivers to more than one of the at least two antenna columns of each of the at least one antenna panels to cause a change from the first quasi-omnidirectional radiation pattern to another radiation pattern.

1 . The method of claim 14, further comprising changing the first quasi-omnidirectional radiation pattern to another radiation pattern.

17. The method of claim 14, wherein the changing comprises changing an amplitude of one or more signals applied to the base station antenna.

18. The system of claim 14, wherein the changing comprises changing a phase of one or more signals applied to the base station antenna.

19. The system of claim 16, wherein the changing a phase comprises one of applying at least two cables of different lengths or applying a Butler matrix to provide a 120-degree phase difference between one of the least two antenna columns of one of the at least one antenna panels, and at least one of the at least two antenna columns of another of the at least one antenna panels.

20. The system of claim 14, wherein the first quasi-omnidirectional radiation pattern includes one or more maxima or one or more nulls at one or more predetermined positions.

21. The system of claim 14, wherein the first quasi-omnidirectional radiation pattern includes a single null.

22. The system of claim 14, wherein the base station antenna includes more than three antenna panels.