Array antenna apparatus for rotation mode, and wireless communication terminal and method

1. An array antenna apparatus for a rotation mode, comprising:

an antenna array including a plurality of antenna elements; and

a control unit which determines an antenna pattern in accordance with a transmission/reception characteristic of a signal and assigns a weight to antenna elements in a position corresponding to the determined antenna pattern on the antenna array to implement a rotation mode antenna based on the antenna element to which the weight is assigned,

wherein the control unit implements a plurality of rotation mode antennas on the antenna array.

2. The array antenna apparatus of claim 1 , wherein the control unit implements at least two rotation mode antennas using one antenna pattern on the antenna array.

3. The array antenna apparatus of claim 2 , further comprising:

a mode coupler which combines weights which are assigned to the antenna elements which form the one antenna pattern for every rotation mode antenna in the unit of antenna elements.

4. The array antenna apparatus of claim 3 , wherein the control unit assigns the weights which are combined by the mode coupler corresponding to the antenna element which forms one antenna pattern to the corresponding antenna element.

5. The array antenna apparatus of claim 1 , wherein the control unit implements at least two rotation mode antennas using different antenna elements on the antenna array.

6. The array antenna apparatus of claim 5 , wherein the control unit implements a rotation mode antenna for every region using antenna elements in at least two regions which are spaced apart in parallel from each other on the antenna array.

7. The array antenna apparatus of claim 5 , wherein the control unit implements a rotation mode antenna for every region using antenna elements in at least two circle regions which are spaced apart from each other with respect to any one point on the antenna array.

8. The array antenna apparatus of claim 5 , wherein the control unit implements a rotation mode antenna for every region using antenna elements in line regions which extend in different directions with respect to any one point on the antenna array.

9. The array antenna apparatus of claim 5 , wherein the control unit implements at least two rotation mode antennas which intersect each other using antenna elements in at least two regions which overlap each other on the antenna array.

10. The array antenna apparatus of claim 1 , wherein the control unit analyzes a reception power distribution of antenna elements which configure a reception side rotation mode antenna to rearrange antenna patterns of the rotation mode antenna in accordance with an analysis result.

11. The array antenna apparatus of claim 1 , wherein the control unit forms the antenna pattern of a reception side rotation mode antenna to have the same shape as the antenna pattern of a transmission side rotation mode antenna but to be larger than the antenna pattern of the transmission side rotation mode antenna.

12. The array antenna apparatus of claim 1 , wherein the control unit implements a transmission side rotation mode antenna using antenna elements which are located at a center region of the antenna array and implements a reception side rotation mode antenna using antenna elements in an outer peripheral region which is spaced apart from the center region.

13. The array antenna apparatus of claim 1 , wherein the weight is determined depending on an amplitude and a phase of a signal which is transmitted or received through the rotation mode antenna.

14. The array antenna apparatus of claim 1 , wherein a gain of the rotation mode antenna is increased in proportion to the number of antenna elements corresponding to the antenna pattern.

15. A wireless communication terminal comprising the array antenna apparatus for a rotation mode of claim 1 , which transmits and receives a wireless signal using the array antenna apparatus for a rotation mode.

16. A wireless communication method, comprising:

configuring an antenna array including a plurality of antenna elements;

determining an antenna pattern in accordance with a transmission/reception characteristic of a signal and assigning a weight to antenna elements in a position corresponding to the determined antenna pattern on the antenna array;

implementing a rotation mode antenna based on the antenna element to which the weight is assigned; and

transmitting or receiving a signal using the rotation mode antenna,

wherein a plurality of rotation mode antennas is implemented on the antenna array.