HORN ANTENNA DEVICE AND STEP-SHAPED SIGNAL FEED-IN APPARATUS THEREOF

• US 20150029065A1
• Filed: 07/28/2013
• Published: 01/29/2015
• Est. Priority Date: 07/28/2013
• Status: Active Grant

• Current Assignee: Finetek Company Limited
• Original Assignee: Finetek Company Limited
• Inventors: Cheng, Shu-Chien, Lin, I-Chu, Lee, Yi-Yan, Tsai, Tzu-Chuan, Cheng, Chao-Kai
• Granted Patent: US 9,246,227 B2
• Time in Patent Office: Days
• US Class Current: 343/753
• CPC Class Codes: H01P 5/103 Hollow-waveguide/coaxial-line transitions
• CPC Class Codes: H01Q 13/0208 Corrugated horns waveguide mouth antenna with corrugated flange H01Q13/065; manufacturing details H01Q13/0283
• CPC Class Codes: H01Q 19/06 using refracting or diffracting devices, e.g. lens radome H01Q1/42

Abstract

The present invention relates to a horn antenna device. The horn antenna device has a step-shaped signal feed-in apparatus and a conical horn antenna. The step-shaped signal feed-in apparatus has a stepped body having multiple stairs and a connecting pin. The stepped body is adapted to radiate electromagnetic waves and receive a reflection of the electromagnetic waves. According to the structure of the step-shaped signal feed-in apparatus of the invention, the resonating modes are easy to be determined. The directivity and the signal-to-noise rate are improved. In addition, the connecting pin is directly connected to the stairs for improving the signal stability of the horn antenna device.

Claims

1. A step-shaped signal feed-in apparatus comprising:

a fixture base having;

a first end;

a second end distal to the first end; and

a connector formed in the first end;

a head connected to the connector of the fixture base and having a socket; and

a stepped body mounted in the fixture base and having;

multiple stairs sequentially formed along an axial direction of the fixture base, wherein a highest stair is near the first end of the fixture base, and a lowest stair is near the second end of the fixture base; and

a connecting pin formed on a side surface of the highest stair and connected to the socket of the head.

2. The apparatus as claimed in claim 1, wherein a length of each stair is quarter of a wave length of an electromagnetic wave emitted from the stepped body.

3. The apparatus as claimed in claim 1, wherein height differences between each two adjacent stairs are equal to each other.

4. The apparatus as claimed in claim 1, wherein an extending direction of the connecting pin is parallel to the axial direction of the fixture base.

5. The apparatus as claimed in claim 2, wherein an extending direction of the connecting pin is parallel to the axial direction of the fixture base.

6. The apparatus as claimed in claim 3, wherein an extending direction of the connecting pin is parallel to the axial direction of the fixture base.

7. A horn antenna device comprising:

a step-shaped signal feed-in apparatus comprising;

a fixture base having;

a first end;

a second end distal to the first end; and

a connector formed in the first end;

a head connected to the connector of the fixture base and having a socket; and

a stepped body mounted in the fixture base and having;

multiple stairs sequentially formed along an axial direction of the fixture body, wherein a highest stair is near the first end of the fixture base, and a lowest stair is near the second end of the fixture base; and

a connecting pin formed on a side surface of the highest stair and connected to the socket of the head; and

a conical horn antenna having;

a signal input-and-output (I/O) end connected to the second end of the fixture base of the step-shaped signal feed-in apparatus; and

a signal radiating end distal to the signal I/O end.

8. The device as claimed in claim 7 further comprising a lens antenna mounted on the signal radiating end of the conical horn antenna.

9. The device as claimed in claim 8, wherein

the fixture base of the step-shaped signal feed-in apparatus has a space;

and

the conical horn antenna has;

a panel laterally extending on the signal I/O end; and

an opening formed in a middle of the panel and communicating with the space of the fixture base.

10. The device as claimed in claim 9, wherein the panel has multiple screw holes.

11. The device as claimed in claim 10, wherein

the signal radiating end of the conical horn antenna has an engaging protrusion;

the lens antenna comprises a hook for being engaged with the engaging protrusion of the signal radiating end of the conical horn antenna.

12. The device as claimed in claim 10, wherein

the lens antenna comprises a lens body having a plane surface;

and

the hook is formed on an edge of the plane surface of the lens body.

13. The device as claimed in claim 12, wherein the lens body is a hemispherical body.

14. The device as claimed in claim 13, wherein

the hook of the lens body has external threads;

and

a ring has internal threads to be screwed with the external threads of the hook.

15. The device as claimed in claim 14, wherein the lens antenna is made of materials selected from a group consisting of metal, PVDF, polytetrafluoroethene, paraffin, polyethylene, polymethylmethacrylate, polystyrene, flint glass, polygas and Rutile.

16. The device as claimed in claim 14, wherein the lens body of the lens antenna is selected from a group consisting of a convex lens, a concave lens, a Bi-convex lens, a Plano-Convex lens;

a Positive meniscus lens, a Negative meniscus lens, and a Plano-concave and Bi-concave lens.