Antenna radome

• US 8,193,996 B2
• Filed: 12/16/2008
• Issued: 06/05/2012
• Est. Priority Date: 06/23/2008
• Status: Active Grant

• Current Assignee: Industrial Technology Research Institute, National Sun Yat-sen University
• Original Assignee: Industrial Technology Research Institute, National Sun Yat-sen University
• Inventors: Wu, Chun-Yih, Lin, Hung-Hsuan, Lin, Ken-Huang, Lin, Kun-Hsien, Yeh, Yu-Feng
• Primary Examiner(s): DUONG, DIEU HIEN
• Application Number:
  US12/335,585
• Publication Number:
  US 20090315803A1
• Time in Patent Office: 1,267 Days
• Field of Search: 343/909, 343/872, 343/873, 343/700.MS
• US Class Current: 343/872
• CPC Class Codes: H01Q 1/42 Housings not intimately mechanically associated with radiating elements, e.g. radome
• CPC Class Codes: H01Q 1/422 comprising two or more layers of dielectric material H01Q1/425 takes precedence
• CPC Class Codes: H01Q 19/06 using refracting or diffracting devices, e.g. lens radome H01Q1/42
• CPC Class Codes: H01Q 9/0407 Substantially flat resonant element parallel to ground plane, e.g. patch antenna dipole H01Q9/285; monopole H01Q9/40

Abstract

An antenna radome is provided. The antenna radome comprises an antenna radome substrate and a unit cell. The unit cell is formed on a surface of the antenna radome substrate, and the unit cell is perpendicular to a magnetic field direction of an antenna. The unit cell comprises a plurality of conductors.

Claims

1. An antenna radome comprising:

an antenna radome substrate; and

a unit cell formed on a surface of the antenna radome substrate and perpendicular to a magnetic field direction of an antenna;

wherein the antenna radome and the antenna are apart at a specific distance which is 0.1λ

.

2. The antenna radome according to claim 1 further comprising other N antenna radome substrates overlapping the antenna radome substrate, wherein N is a positive integer.

3. The antenna radome according to claim 2, wherein the other N antenna radome substrates and the antenna radome substrate overlap each other along the magnetic field direction of the antenna to form a cubic antenna radome.

4. The antenna radome according to claim 3, wherein the cubic antenna radome and other M cubic antenna radomes are arranged periodically along a radiation direction of the antenna, M being a positive integer.

5. The antenna radome according to claim 1, wherein the antenna comprises:

an antenna substrate; and

a radiator, formed on a surface of the antenna substrate, the antenna radome substantially covering only the radiator.

6. The antenna radome according to claim 1, wherein the unit cell comprises:

a plurality of first C-shaped conductors;

a plurality of second C-shaped conductors, respectively adjacent to the first C-shaped conductors; and

a plurality of third C-shaped conductors, respectively positioned in openings of the second C-shaped conductors, openings of the third C-shaped conductors opposite to the openings of the second C-shaped conductors.

7. The antenna radome according to claim 6, wherein the first C-shaped conductors respectively have an angle substantially equal to 90°

.

8. The antenna radome according to claim 6, wherein the second C-shaped conductors respectively have an angle substantially equal to 90°

.

9. An antenna radome comprising:

a plurality of antenna radome substrates, overlapping each other along a magnetic field direction of an antenna; and

a plurality of unit cells, formed on surfaces of the antenna radome substrates, and perpendicular to the magnetic field direction of the antenna;

wherein the antenna radome is apart from the antenna at a specific distance which is 0.1λ

.

10. The antenna radome according to claim 9, wherein the antenna radome is a cubic antenna radome.

11. The antenna radome according to claim 10, wherein the cubic antenna radome and other M cubic antenna radome are arranged periodically along a radiation direction of the antenna, M being a positive integer.

12. The antenna radome according to claim 9, wherein the antenna comprises:

an antenna substrate; and

a radiator, formed on a surface of the antenna substrate, the antenna radome substantially covering only the radiator.

13. The antenna radome according to claim 9, wherein unit cells are arranged periodically along a radiation direction of the antenna.

14. The antenna radome according to claim 9, wherein each unit cell comprises:

a plurality of first C-shaped conductors;

a plurality of second C-shaped conductors, respectively adjacent to the first C-shaped conductors; and

a plurality of third C-shaped conductors, respectively positioned in openings of the second C-shaped conductors, opening of the third C-shaped conductors opposite to the openings of the second C-shaped conductors.

15. The antenna radome according to claim 14, wherein the first C-shaped conductors respectively have an angle substantially equal to 90°

.

16. The antenna radome according to claim 14, wherein the second C-shaped conductors respectively have an angle substantially equal to 90°

.

17. An antenna radome comprising:

an antenna radome substrate; and

a unit cell, formed on a surface of the antenna radome substrate and comprising;

a plurality of first C-shaped conductors;

a plurality of second C-shaped conductors, respectively adjacent to the first C-shaped conductors; and

a plurality of third C-shaped conductors, respectively positioned in openings of the second C-shaped conductors, opening of the third C-shaped conductors opposite to the openings of the second C-shaped conductors;

wherein the antenna radome is apart from an antenna at a specific distance which is 0.1λ

.

18. The antenna radome according to claim 17, wherein the first C-shaped conductors respectively have an angle substantially equal to 90°

.

19. The antenna radome according to claim 17, wherein the second C-shaped conductors respectively have an angle substantially equal to 90°

.