Dipole design

• US 7,439,927 B2
• Filed: 04/15/2005
• Issued: 10/21/2008
• Est. Priority Date: 04/15/2004
• Status: Expired due to Fees

• Current Assignee: CellMax Technologies AB (Rosenberger Technology (Kunshan) Co., Ltd.)
• Original Assignee: CellMax Technologies AB (Rosenberger Technology (Kunshan) Co., Ltd.)
• Inventors: Malmgren, Jens, Lenart, Gregor
• Primary Examiner(s): Dinh; Trinh V
• Application Number:
  US10/599,948
• Publication Number:
  US 20070200783A1
• Time in Patent Office: 1,285 Days
• Field of Search: 343/797, 343/793, 343/795, 343/798
• US Class Current: 343/797
• CPC Class Codes: H01Q 21/08 the units being spaced along or adjacent to a rectilinear path waveguide fed H01Q21/0037
• CPC Class Codes: H01Q 21/24 Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction circularly polarised patch antennas H01Q9/0428; circularly polarised horns H01Q13/0241; cross-polarised horns H01Q13/0258; polarisation converters H01Q15/242; cross-polarised rear feeds H01Q19/136; crossed polarisation dual antenna H01Q25/001
• CPC Class Codes: H01Q 9/26 with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength resonant loop antennas H01Q7/00

Abstract

A broadband dipole including two co-working conductors. The invention is characterized in, that a first of the conductors (11) is comprised of a rod (12) including a substantially centrally located axial hole (2), said hole (2) forming an outer conductor (11) of a coaxial line, and that the second conductor (5) is comprised of a solid rod, and that a metallic wire (5) inserted centrally in the axial hole (2) of the first conductor (11) is connected to the second conductor (5).

Claims

1. A broadband dipole comprising:

two superimposed dipoles (3) each including co-working conductors,

wherein

a first of the conductors (12) of each dipole is comprised of a rod (12) including a substantially centrally located axial hole (2), the walls (11) of said hole (2) forming an outer conductor of a coaxial line, and a metallic wire (5) inserted centrally in the axial hole (2) thereby forming an inner conductor of said coaxial line; and

a second conductor (10) of each dipole is comprised of a solid rod connected to the metallic wire (5′

)

wherein the two dipoles are superimposed to form a middle between the first and second conductors of both dipoles; and

a dielectric rod (7) inserted in the middle formed by superimposing the two dipoles.

2. The broadband dipole according to claim 1, wherein a dielectric material (6) is inserted between the metallic wire (5) and the wall of the hole (2) in the first conductor (12).

3. The broadband dipole according to claim 1 or 2, wherein each of the conductors (10,12) includes an integrated folded back part (13) of the rod.

4. The broadband dipole according to claim 3, wherein coupling between two dipoles (3) is minimized by increasing the height of half (17) of the dipole (14) top.

5. The broadband dipole according to claim 4, wherein dipole feed crossings (15) of the same type are connected together.

6. The broadband dipole according to 4, wherein alternated dipole feed crossings (15) are connected together.

7. The broadband dipole according to claim 3, wherein alternated dipole feed crossings (15) are connected together.

8. The broadband dipole according to claim 1 or 2, wherein coupling between two dipoles (3) is minimized by increasing the height of half (17) of the dipole (14) top.

9. The broadband dipole according to claim 8, wherein alternated dipole feed crossings (15) are connected together.

10. The broadband dipole according to claim 1 or 2, wherein alternated dipole feed crossings (15) are connected together.

11. A broadband dipole comprising:

a first and a second dipole (3) superimposed one upon the other, each having;

a solid rod and a hollow rod with an internal axial hole, the walls of said hole forming an outer conductor of a coaxial line;

an inner conductor located centrally in the internal axial hole and connected to the solid rod; and

a dielectric rod (7) located between the solid rod and the hollow rod of the first dipole and between the solid rod and the hollow rod of the second dipole.