EXCITING DUAL FREQUENCY BANDS FROM AN ANTENNA COMPONENT WITH A DUAL BRANCH COUPLING FEED

• US 20160087328A1
• Filed: 09/22/2014
• Published: 03/24/2016
• Est. Priority Date: 09/22/2014
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Lee, Kwan Ho, Yang, Songnan, Konanur, Anand, Karacaoglu, Ulun
• Granted Patent: US 9,673,511 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H01Q 1/2291 used in bluetooth or WI-FI devices of Wireless Local Area Networks [WLAN] H01Q1/241 takes precedence; WLAN in general H04W
• 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 1/44 using equipment having another main function to serve additionally as an antenna , e.g. means for giving an antenna an aesthetic aspectH01Q1/27 - H01Q1/34 take precedence
• CPC Class Codes: H01Q 13/10 Resonant slot antennas
• CPC Class Codes: H01Q 13/106 Microstrip slot antennas patch antenna elements H01Q9/0407
• CPC Class Codes: H01Q 21/30 Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
• CPC Class Codes: H01Q 25/00 Antennas or antenna systems providing at least two radiating patterns arrangements for changing or varying the orientation or the shape of the directional pattern H01Q3/00
• CPC Class Codes: H01Q 5/307 Individual or coupled radiating elements, each element being fed in an unspecified way

Abstract

An antenna element forms a ring slot antenna comprising a first slot and second slot. The antenna element is located on a first surface of a conductive chassis that encases a body or a volume for wireless communication signals to be received or transmitted. A coupling component is located on an opposite side of the conductive chassis and behind the antenna element. The coupling component facilitates a coupling between a communication component and the antenna element as a function of the orientation and geometric shape of the coupling component to facilitate different resonant frequencies via the first and second slots of the antenna element.

Claims

1. A system comprising:

a mobile device comprising a memory and a processor coupled to the memory for processing mobile communications at a plurality of operating frequencies;

a conductive chassis comprising a first conductive surface and a second conductive surface opposite to the first metal surface, and configured to cover the mobile device with a conductive material;

a first antenna element located on a first surface of the conductive chassis and configured to transmit or receive a wireless communication signal; and

a coupling component located on the second conductive surface opposite to the first conductive surface and coupled to the first antenna element with a communication component for transmitting or receiving the wireless communication signal associated with the first antenna element.

2. The system of claim 1, wherein the first antenna element comprises a ring slot antenna element.

3. The system of claim 1, wherein the first antenna element comprises at least two ring slots formed from a first ring portion and a second ring portion of the first antenna element and configured to resonant at the plurality of operating frequencies.

4. The system of claim 1, wherein the first antenna element comprises an engraving into the first surface of the conductive chassis comprising a ring slot element with a first slot and a second slot configured to resonant at a first operating frequency and a second operating frequency respectively.

5. The system of claim 1, wherein the first antenna element is configured to resonant at a first resonant frequency corresponding to a first slot and at a second resonant frequency corresponding to a second slot of the first antenna element.

6. The system of claim 1, wherein the conductive chassis is configured as a ground plane to wirelessly transmit or receive the wireless communication signal.

7. The system of claim 1, wherein the first antenna element is configured to resonant at a first resonant frequency corresponding to a first slot and at a second resonant frequency corresponding to a second slot of the first antenna element.

8. The system of claim 7, further comprising:

a second antenna element, located on the first surface of the conductive chassis and within the first antenna element, comprising at least one third slot configured to resonant at a different resonant frequency than the first resonant frequency and the second resonant frequency of the first antenna element.

9. The system of claim 8, wherein the coupling component is further configured to couple the second antenna element with the communication component for transmitting or receiving the wireless communication signal.

10. The system of claim 8, wherein the second antenna element comprises a slot antenna element configured to resonate from the at least one third slot formed from one or more letters, numbers or symbols within the first antenna element, wherein the first antenna element is a ring slot antenna element comprising the first slot and the second slot.

11. The system of claim 1, wherein the first antenna element comprises a Wi-Fi antenna configured to resonate at about 2.4 GHz and about 5 GHz to facilitate dual Wi-Fi communications.

12. The system of claim 1, wherein the coupling component comprises an open structure having a plurality of different branches with a first corner and a second corner, wherein the first corner and the second corner are orientated to underlie a first slot and a second slot of the first antenna element respectively.

13. The system of claim 1, wherein at least two of the plurality of operating frequencies are different from one another.

14. A mobile device comprising:

a communication component configured to transmit and receive mobile communications of a plurality of operating frequencies;

a conductive chassis enclosing the communication component with a ground plane;

a first antenna element formed on a first surface of the conductive chassis; and

a coupling element formed on a second surface of the conductive chassis configured to transmit or receive the mobile communications between the first antenna element and the communication component.

15. The mobile device of claim 14, wherein the first antenna element comprises a first ring portion and a second ring portion that form a first ring slot configured to resonate at a first resonating frequency and a second ring slot configured to resonate at a second resonating frequency.

16. The mobile device of claim 15, wherein the coupling element is configured to transmit or receive the mobile communications with the first ring slot at the first resonating frequency and the second ring slot at a second resonating frequency via an electromagnetic coupling to the first antenna element.

17. The mobile device of claim 14, wherein the coupling element comprises:

a first branch resonating element; and

a second branch resonating element coupled to the first branch resonating element that indirectly couples a first slot and a second slot of the first antenna element respectively to the communication component.

18. The mobile device of claim 14, wherein the coupler is configured as an open ended coupler comprising an opening that is aligned with a first ring slot of the first antenna element to facilitate a first resonance at a first frequency and at least one corner that is aligned with a second ring slot of the first antenna element to facilitate a second resonance at a second frequency.

19. The mobile device of claim 14, further comprising:

a second antenna element configured to resonate at a third frequency that is different than resonating frequencies of the first antenna element and located within the first antenna element, wherein the first antenna element comprises a first ring slot for resonating at a first resonating frequency and a second ring slot for resonating at a second resonating frequency.

20. The mobile device of claim 14, wherein the coupling element comprises a first branch resonating element and a second branch resonating element that is shorter than the first branch resonating element.

21. The mobile device of claim 20, wherein the first branch resonating element is configured to resonate a first slot of the first antenna element at a first resonating frequency and the second branch resonating element is configured to resonate a second slot of the first antenna element at a second resonating frequency.

22. The mobile device of claim 21, wherein the first resonating frequency comprises about 2.4 GHz and the second resonating frequency comprises about 5 GHz to facilitate dual Wi-Fi communications via the first antenna element.

23. A method comprising:

receiving or transmitting a first frequency signal at a first slot of a first antenna element on a first surface of a conductive chassis surrounding a body;

receiving or transmitting a second frequency signal at a second slot of the first antenna element; and

facilitating communications of the first frequency signal and the second frequency signal being received or transmitted at the first antenna element via a coupler located on a second surface of the conductive chassis that opposes the first surface.

24. The method of claim 23, further comprising:

aligning a corner of a first branch of the coupler with the first slot and a second branch of the coupler with an opening to the second slot to form an electromagnetic coupling to the first antenna element.

25. The method of claim 23, further comprising:

receiving or transmitting a third frequency signal at a second antenna element located within the first antenna element.

26. The method of claim 25, further comprising:

coupling the second antenna element via an electromagnetic coupling with the coupler.