Wireless communication device with a multiband antenna, and methods of making and using thereof

• US 9,178,270 B2
• Filed: 09/05/2012
• Issued: 11/03/2015
• Est. Priority Date: 05/17/2012
• Status: Active Grant

• Current Assignee: Futurewei Technologies Incorporated (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Futurewei Technologies Incorporated (Huawei Investment & Holding Co., Ltd.)
• Inventors: Vanjani, Kiran, Shanmugam, Balamurugan
• Primary Examiner(s): Karacsony, Robert
• Assistant Examiner(s): HOLECEK, PATRICK R
• Application Number:
  US13/604,521
• Publication Number:
  US 20130307731A1
• Time in Patent Office: 1,154 Days
• Field of Search: 343/700.MS, 343/702, 343/741, 343/866
• US Class Current: 1/1
• CPC Class Codes: H01Q 1/243 with built-in antennas
• CPC Class Codes: H01Q 1/38 formed by a conductive layer on an insulating support patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface H01Q15/142
• CPC Class Codes: H01Q 5/357 using a single feed point
• CPC Class Codes: Y10T 29/49016 Antenna or wave energy "plumbing" making

Abstract

An antenna for a wireless device including a meander structure formed from a plurality of meanders and a conductive strip connected in parallel to the meander structure and including a plurality of tabs projecting toward the meander structure, a first group of tabs connected to a first group of meanders corresponding to the first group of tabs, a second group of tabs disconnected from a second group of meanders corresponding to the second group of tabs. In an embodiment, the antenna is incorporated into a wireless device having a transceiver and a finite ground plane.

Claims

1. An antenna for a wireless device, comprising:

a meander structure formed from a plurality of meanders, wherein the plurality of meanders comprises a first group of meanders and a second group of meanders; and

a conductive strip connected in parallel to the meander structure and including a plurality of tabs projecting toward the meander structure, wherein the plurality of tabs comprises a first group of tabs and a second group of tabs, wherein a first group of tabs is connected to a first group of meanders corresponding to the first group of tabs, wherein each tab in the first group of tabs is directly connected to a respective meander in the first group of meanders, and wherein a second group of tabs is not directly connected to a second group of meanders corresponding to the second group of tabs.

2. The antenna of claim 1, wherein a first meander in the second group of meanders is connected to a patch, the patch connected to a feed section configured to receive a feed signal from a transceiver.

3. The antenna of claim 1, wherein a first meander in the first group of meanders is connected to a ground section, the ground section configured to connect to a ground plane.

4. The antenna of claim 1, wherein the plurality of meanders collectively forms a square wave pattern.

5. The antenna of claim 1, wherein at least one of the tabs in the first group of tabs is connected to at least one of a sidewall of one of the first group of meanders and a bottom of one of the first group of the meanders.

6. The antenna of claim 1, wherein at least one of the meanders is completely unfilled by any of the tabs.

7. The antenna of claim 1, wherein the first group of tabs includes at least two of the solid center tabs and the second group of tabs includes at least two of the tabs.

8. The antenna of claim 1, wherein at least one of the solid center tabs in the first group of tabs is narrower than another of the tabs in the first group of tabs.

9. The antenna of claim 1, wherein the meander structure and the conductive strip are each supported by an antenna carrier, the antenna carrier formed from a non-metallic material.

10. The antenna of claim 1, wherein the meander structure is connected to a feed section, the feed section supporting a tuning structure configured to manipulate a resonant frequency.

22. The antenna of claim 1, wherein the plurality of meanders collectively forms a sine wave pattern.

11. A wireless device comprising:

a transceiver;

a finite ground plane; and

an antenna connected to the transceiver through a feed section and to the finite ground plane through a ground section, the antenna including a meander structure and conductive strip connected in parallel, the meander structure formed from a plurality of meanders, wherein the plurality of meanders comprises a first group of meanders and a second group of meanders, the conductive strip including a plurality of tabs projecting into the meanders corresponding to the tabs, wherein the plurality of tabs comprises a first group of tabs and a second group of tabs, wherein a first group of tabs is connected to a first group of meanders corresponding to the first group of tabs, wherein each tab in the first group of tabs is directly connected to a respective meander in the first group of meanders, and wherein a second group of tabs is not directly connected to a second group of meanders corresponding to the second group of tabs.

12. The device of claim 11, wherein the antenna is connected to the transceiver through the feed section using a patch, the patch making the antenna asymmetrical.

13. The device of claim 11, wherein the meander structure forms a square wave pattern.

14. The device of claim 11, wherein the feed section and the ground section are separated by a slot occupied by an insulator.

15. The device of claim 11, further comprising a tuning structure connected to the feed section, the tuning structure configured to alter a resonant frequency of the antenna.

23. The device of claim 11, wherein the meander structure forms a sine wave pattern.

16. A method of forming an antenna for a wireless device, comprising:

forming a meander structure with a plurality of meanders, wherein the plurality of meanders comprises a first group of meanders and a second group of meanders;

forming a conductive strip having a plurality of tabs, wherein the plurality of tabs comprises a first group of tabs and a second group of tabs; and

connecting the conductive strip to the meander structure in parallel, the tabs of the conductive strip projecting toward the meanders corresponding to the first group of tabs, wherein each tab in the first group of tabs is directly connected to a respective meander in the first group of meanders, and such that a second group of tabs is not directly connected to a second group of meanders corresponding to the second group of tabs.

17. The method of claim 16, further comprising forming the meander structure to resemble a square wave pattern.

18. The method of claim 16, further comprising coupling a feed section to one end of the meander structure and a ground section to an opposing end of the meander structure.

19. The method of claim 18, further comprising separating the feed section and the ground section with a slot occupied by an insulator.

20. The method of claim 19, further comprising coupling a patch to a first meander of the meander structure and an end of the feed section proximate the first meander.

21. The method of claim 16, further comprising forming the meander structure to resemble a sine wave pattern.