Coupled Dual-Band Dipole Antenna with Interference Cancellation Gap, Method of Manufacture and Kits Therefor

• US 20130321231A1
• Filed: 11/21/2011
• Published: 12/05/2013
• Est. Priority Date: 11/23/2010
• Status: Active Grant

• Current Assignee: Taoglas Group Holding Limited
• Original Assignee: Taoglas Group Holding Limited
• Inventors: Flores-Cuadras, Ruben Javier
• Granted Patent: US 9,425,510 B2
• Time in Patent Office: Days
• US Class Current: 343/793
• CPC Class Codes: H01Q 5/371 Branching current paths
• CPC Class Codes: H01Q 9/16 with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole H01Q9/44 takes precedence
• CPC Class Codes: H01Q 9/285 Planar dipole H01Q9/065 takes precedence; patch antenna H01Q9/0407

Abstract

A planar dipole antenna for dual-band Wi-Fi application is disclosed. The antenna has a ground copper and a radiation copper. The ground copper is adhered to a substrate and has an upper, shorter and generally horizontal segment and a lower, longer and also generally horizontal segment that are connected at one end thereof by a vertical segment. The radiation copper is adhered to the substrate and has a copper shaped substantially as a mirror symmetry of the ground copper and spaced apart from the ground copper by a gap at the end of the ground and radiation coppers where the shorter and longer horizontal segments thereof are connected. The antenna has a gross span of approximately 42 mm and a height of approximately 7 mm. The gap is approximately 0.6 mm

Claims

1. A planar antenna comprising:

a substrate;

a conductive layer attached to a first surface of the substrate wherein the conductive layer further comprises an antenna section which includes a ground section having an upper, shorter and generally horizontal section and a lower, longer generally horizontal section connected at one end by a vertical segment, and a radiation section having a substantially mirror image shape as the ground section.

2. The antenna of claim 1 wherein each of the antenna section and the ground section is a layer of patterned foil adhered to the first surface of the substrate.

3. The antenna of claim 1 wherein the antenna section and the ground section have a combined overall width of from about 30 mm to 58 mm and a height of from about 3 mm to about 15 mm.

4. The antenna of claim 1 wherein the antenna section and the ground section have a combined overall width of from about 42 mm and a height of about 7 mm.

5. The antenna of claim 1 wherein the antenna section and the ground section adhered to the substrate have a combined overall thickness of from about 0.05 mm to about 0.15 mm.

6. The antenna of claim 1 wherein the antenna section and the ground section adhered to the substrate have a combined overall thickness of about 0.1 mm.

7. The antenna of claim 1 wherein the antenna section has a radiation element further comprising a first horizontally longer section at a first end and a parallel shorter section below the first horizontally longer section, wherein the second section is proximal the ground element.

8. The antenna of claim 1 wherein the substrate is at least one of a Flame Retardant 4 material, a flexible printed circuit substrate, and a single-side printed circuit board substrate.

9. The antenna of claim 1 wherein the conductive layer is selected from the group comprising copper, aluminum, nickel, silver, and chrome.

10. The antenna of claim 1 further comprising an insulation layer on top of the conductive layer.

11. The antenna of claim 10 wherein the insulation layer has an aperture defining a ground access point exposing a portion of the ground element.

12. The antenna of claim 10 wherein the insulation layer has an aperture defining a feed point exposing a portion of the radiation element.

13. The antenna of claim 1 wherein the dual band includes a first frequency from 2400-2500 MHz and a second frequency from 4900-6000 MHz.

14. A planar antenna manufactured by patterning a substrate comprising a dielectric layer, and a conductive layer applied to at least one surface of the substrate, comprising:

a conductive layer attached to a first surface of the substrate wherein the conductive layer further comprises an antenna section which includes a ground section having an upper, shorter and generally horizontal section and a lower, longer generally horizontal section connected at one end by a vertical segment, and a radiation section having a substantially mirror image shape as the ground section,

wherein the substrate has a substantially rectangular shape.

15. The antenna of claim 14 wherein each of the antenna section and the ground section is a layer of patterned foil adhered to the first surface of the substrate.

16. The antenna of claim 14 wherein the antenna section and the ground section have a combined overall width of from about 30 mm to 58 mm and a height of from about 3 mm to about 15 mm.

17. The antenna of claim 14 wherein the antenna section and the ground section have a combined overall width of from about 42 mm and a height of about 7 mm.

18. The antenna of claim 14 wherein the antenna section and the ground section adhered to the substrate have a combined overall thickness of from about 0.05 mm to about 0.15 mm.

19. The antenna of claim 14 wherein the antenna section and the ground section adhered to the substrate have a combined overall thickness of about 0.1 mm.

20. The antenna of claim 14 wherein the antenna section has a radiation element further comprising a first horizontally longer section at a first end and a parallel shorter section below the first horizontally longer section, wherein the second section is proximal the ground element.

21. The antenna of claim 14 wherein the substrate is at least one of a Flame Retardant 4 material, a flexible printed circuit substrate, and a single-side printed circuit board substrate.

22. The antenna of claim 14 wherein the conductive layer is selected from the group comprising copper, aluminum, nickel, silver, and chrome.

23. The antenna of claim 14 further comprising an insulation layer on top of the conductive layer.

24. The antenna of claim 23 wherein the insulation layer has an aperture defining a ground access point exposing a portion of the ground element.

25. The antenna of claim 23 wherein the insulation layer has an aperture defining a feed point exposing a portion of the radiation element.

26. The antenna of claim 14 wherein the dual band includes a first frequency from 2400-2500 MHz and a second frequency from 4900-6000 MHz.

27. An antenna kit comprising:

a planar antenna comprising a substrate a conductive layer attached to a first surface of the substrate wherein the conductive layer further comprises an antenna section which includes a ground section having an upper, shorter and generally horizontal section and a lower, longer generally horizontal section connected at one end by a vertical segment, and a radiation section having a substantially mirror image shape as the ground section.

28. The kit of claim 27 further comprising a flexible cable adaptable to connect the planar antenna to a target device.

29. The kit of claim 27 further comprising a planar antenna mounting material.