Antenna apparatus having a reflector

• US 20050206577A1
• Filed: 03/15/2005
• Published: 09/22/2005
• Est. Priority Date: 03/17/2004
• Status: Active Grant

• Current Assignee: Arcadyan Technology Corporation (Compal Electronics Incorporated)
• Original Assignee: Arcadyan Technology Corporation (Compal Electronics Incorporated)
• Inventors: Lee, Chang-Jung
• Granted Patent: US 7,187,341 B2
• Time in Patent Office: Days
• US Class Current: 343/837
• CPC Class Codes: H01Q 15/18 comprising plurality of mutually inclined plane surfaces, e.g. corner reflector H01Q15/16 takes precedence

Abstract

The present invention discloses an antenna apparatus comprising a reflector including a V-like structure (from the cross-sectional view) with an angle. A radiation unit (antenna) is set within the V-like structure. The angle is about 120 degree. The V-like structure includes a fixing plate, a first side plate attached on a first edge of the fixing plate and a second side plate attached on a second edge of the fixing plate, thereby constructing the angle.

Claims

1. An antenna apparatus with a reflector, comprising:

a reflector including a V-like structure with an angle; and

a radiation unit set within said V-like structure.

2. The antenna apparatus of claim 1, wherein the angle is about 120 degree.

3. The antenna of claim 1, wherein said V-like structure includes a fixing plate, a first side plate attached on a first edge of said fixing plate and a second side plate attached on a second edge of said fixing plate, thereby constructing said angle.

4. The antenna apparatus of claim 3, wherein the shape of said first and second side plates is a square or rectangular.

5. The antenna apparatus of claim 3, wherein the shape of said fixing plate is a square or rectangular.

6. The antenna apparatus of claim 3, wherein the length of said first side plate and said second side plate is approximately between 0.25 λ

to λ

of the operation frequency.

7. The antenna apparatus of claim 3, wherein the width of said first side plate and said second side plate is approximately between 0.75 λ

to 3λ

of the operation frequency.

8. The antenna apparatus of claim 3, wherein the width of said fixing plate is approximately between ( 1/12) λ

to (¼

) λ

of the operation frequency.

9. The antenna apparatus of claim 3, wherein said radiation unit keeps a distance to said fixing plate.

10. The antenna apparatus of claim 8, wherein said distance is about between 0.6 λ

to λ

of the operation frequency.

11. The antenna apparatus of claim 1, wherein said radiation unit is an omni-directional antenna.

12. The antenna apparatus of claim 1, wherein said radiation unit is a sleeve antenna.

13. The antenna apparatus of claim 1, wherein said radiation unit is substantially parallel to said fixing plate.