Antenna apparatus for performing wireless communication or broadcasting by selecting one of two types of linearly polarized waves

• US 20030052830A1
• Filed: 03/22/2002
• Published: 03/20/2003
• Est. Priority Date: 08/28/2001
• Status: Active Grant

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Ogawa, Takaya, Ikuma, Yoshiyuki, Inagaki, Satoru
• Granted Patent: US 6,664,928 B2
• Time in Patent Office: Days
• US Class Current: 343/720
• CPC Class Codes: H01Q 1/002 Protection against seismic waves, thermal radiation or other disturbances, e.g. nuclear explosion; Arrangements for improving the power handling capability of an antenna
• CPC Class Codes: H01Q 1/02 Arrangements for de-icing; Arrangements for drying-out ; Arrangements for cooling; Arrangements for preventing corrosion

Abstract

An antenna for linearly polarized wave is accommodated in a case in which a heat sink is provided. By rotating the case depending on the vertically polarized wave or the horizontally polarized wave, wireless communication or broadcasting using the vertically polarized wave or the horizontally polarized wave can be selectively realized with high precision.

Claims

1. An antenna apparatus comprising:

an antenna main body for linearly polarized wave which is accommodated in a case in a direction of vertically polarized wave or in a direction of horizontally polarized wave, both of directions being perpendicular to each other; and

a heat sink which is disposed at a rear surface of said case and thermally coupled to said antenna main body to thermally control said antenna main body.

2. The antenna apparatus according to claim 1, wherein said heat sink is configured such that radiating fins are provided so as to form an acute angle with respect to the direction of gravity in any one of the direction of vertically polarized wave governed by said antenna main body and the direction of horizontally polarized wave governed by said antenna main body.

3. The antenna apparatus according to claim 1, wherein said heat sink is configured such that said radiating fins are arranged in two direction which are substantially perpendicular to each other.

4. The antenna apparatus according to claim 1, wherein said heat sink is configured such that said radiating fins are arranged substantially circularly.

5. The antenna apparatus according to claim 1, wherein said antenna main body is provided with an external connector which is protruded so as to form an acute angle with respect to the direction of gravity in any one of the direction of said vertically polarized wave and the direction of said horizontally polarized wave.

6. The antenna apparatus according to claim 2, wherein said antenna main body is provided with an external connector which is protruded so as to form an acute angle with respect to the direction of gravity in any one of the direction of said vertically polarized wave and the direction of said horizontally polarized wave.

7. The antenna apparatus according to claim 3, wherein said antenna main body is provided with an external connector which is protruded so as to form an acute angle with respect to the direction of gravity in any one of the direction of said vertically polarized wave and the direction of said horizontally polarized wave.

8. The antenna apparatus according to claim 4, wherein said antenna main body is provided with an external connector which is protruded so as to form an acute angle with respect to the direction of gravity in any one of the direction of said vertically polarized wave and the direction of said horizontally polarized wave.

9. The antenna apparatus according to claim 1, wherein said antenna main body is provided with the external connector which is protruded so as to be substantially parallel to a direction that said radiating fins of said heat sink are protruded.

10. The antenna apparatus according to claim 2, wherein said antenna main body is provided with the external connector which is protruded so as to be substantially parallel to the direction that said radiating fins of said heat sink are protruded.

11. The antenna apparatus according to claim 3, wherein said antenna main body is provided with the external connector which is protruded so as to be substantially parallel to the direction that said radiating fins of said heat sink are protruded.

12. The antenna apparatus according to claim 4, wherein said antenna main body is provided with the external connector which is protruded so as to be substantially parallel to the direction that said radiating fins of said heat sink are protruded.

13. An antenna apparatus comprising:

an antenna main body for linearly polarized wave which is installed in a direction of vertically polarized wave or in a direction of horizontally polarized wave, both of directions being perpendicular to each other; and

a heat sink which is disposed at a rear surface of said antenna main body so as to be thermally coupled thereto and thermally controls said antenna main body.

14. The antenna apparatus according to claim 13, wherein said heat sink is configured such that radiating fins are provided so as to form an acute angle with respect to the direction of gravity in any one of the direction of vertically polarized wave governed by said antenna main body and the direction of horizontally polarized wave governed by said antenna main body.

15. The antenna apparatus according to claim 13, wherein said heat sink is configured such that said radiating fins are arranged in two direction which are substantially perpendicular to each other.

16. The antenna apparatus according to claim 13, wherein said heat sink is configured such that said radiating fins are arranged substantially circularly.

17. The antenna apparatus according to claim 13, wherein said antenna main body is provided with an external connector which is protruded so as to form an acute angle with respect to the direction of gravity in any one of the direction of said vertically polarized wave and the direction of said horizontally polarized wave.

18. The antenna apparatus according to claim 14, wherein said antenna main body is provided with an external connector which is protruded so as to form an acute angle with respect to the direction of gravity in any one of the direction of said vertically polarized wave and the direction of said horizontally polarized wave.

19. The antenna apparatus according to claim 15, wherein said antenna main body is provided with an external connector which is protruded so as to form an acute angle with respect to the direction of gravity in any one of the direction of said vertically polarized wave and the direction of said horizontally polarized wave.

20. The antenna apparatus according to claim 16, wherein said antenna main body is provided with an external connector which is protruded so as to form an acute angle with respect to the direction of gravity in any one of the direction of said vertically polarized wave and the direction of said horizontally polarized wave.

21. The antenna apparatus according to claim 13, wherein said antenna main body is provided with the external connector which is protruded so as to be substantially parallel to a direction that said radiating fins of said heat sink are protruded.

22. The antenna apparatus according to claim 14, wherein said antenna main body is provided with the external connector which is protruded so as to be substantially parallel to the direction that said radiating fins of said heat sink are protruded.

23. The antenna apparatus according to claim 15, wherein said antenna main body is provided with the external connector which is protruded so as to be substantially parallel to the direction that said radiating fins of said heat sink are protruded.

24. The antenna apparatus according to claim 16, wherein said antenna main body is provided with the external connector which is protruded so as to be substantially parallel to the direction that said radiating fins of said heat sink are protruded.