ANTENNA ARRANGEMENT, COMMUNICATION APPLIANCE AND ANTENNA STRUCTURE

• US 20140313092A1
• Filed: 04/22/2014
• Published: 10/23/2014
• Est. Priority Date: 04/22/2013
• Status: Active Grant

• Current Assignee: Infineon Technologies AG
• Original Assignee: Infineon Technologies AG
• Inventors: Raggam, Peter, Rampetzreiter, Stephan, Gruber, Josef, Kronschlaeger, Oliver
• Granted Patent: US 10,096,902 B2
• Time in Patent Office: Days
• US Class Current: 343/788
• CPC Class Codes: H01Q 1/2216 used in interrogator/reader equipment
• CPC Class Codes: H01Q 7/08 Ferrite rod or like elongated core

Abstract

In various embodiments, an antenna arrangement is provided. The antenna arrangement may include at least one integrated circuit; at least one loop antenna that is coupled to the integrated circuit and that forms a loop antenna region; at least one antenna that is coupled to the integrated circuit and that has a magnet core; wherein at least one portion of the magnet core is arranged above a portion of the loop antenna region; wherein the portion of the magnet core overlaps the portion of the loop antenna region; or wherein the portion of the magnet core does not overlap the portion of the loop antenna region.

Claims

1. An antenna arrangement, comprising:

at least one integrated circuit;

at least one loop antenna that is coupled to the integrated circuit and that forms a loop antenna region;

at least one antenna that is coupled to the integrated circuit and that has a magnet core;

wherein at least one portion of the magnet core is arranged above a portion of the loop antenna region;

wherein the portion of the magnet core overlaps the portion of the loop antenna region;

or

wherein the portion of the magnet core does not overlap the portion of the loop antenna region.

2. The antenna arrangement of claim 1, further comprising:

a support;

wherein the loop antenna and the antenna are arranged on the support.

3. The antenna arrangement of claim 1,

wherein the loop antenna has at least one turn and the loop antenna is in the form of a planar antenna.

4. The antenna arrangement of claim 1,

wherein the antenna has at least one turn that is arranged around the magnet core.

5. The antenna arrangement of claim 1,

wherein the material of the magnet core has a relative magnetic permeability index of greater than 1.

6. The antenna arrangement of claim 5,

wherein the material of the magnet core is formed from a ferrite material.

7. The antenna arrangement of claim 4,

wherein the magnet core has a longitudinal extent;

wherein the at least one turn is arranged around the longitudinal lateral faces of the magnet core.

8. The antenna arrangement of claim 4,

wherein the magnet core has a transverse extent;

wherein the at least one turn is arranged around the end faces of the magnet core.

9. The antenna arrangement of claim 2,

at least one contact pad;

wherein the contact pad is arranged on the support.

10. The antenna arrangement of claim 1,

wherein the antenna with the magnet core covers no more than 75% of the area of the loop antenna region.

11. The antenna arrangement of claim 1,

configured as a module that has at least one of at least one memory or a logic circuit.

12. The antenna arrangement of claim 1,

wherein at least one of the loop antenna or the antenna is power-matched for a carrier frequency situated in a range of one of the following:

approximately 13.56 MHz;

approximately 433 MHz;

approximately 125 kHz;

approximately 868 MHz; and

approximately 2.4 GHz.

13. A communication appliance, comprising:

an antenna arrangement, comprising;

at least one integrated circuit;

at least one loop antenna that is coupled to the integrated circuit and that forms a loop antenna region;

at least one antenna that is coupled to the integrated circuit and that has a magnet core;

wherein at least one portion of the magnet core is arranged above a portion of the loop antenna region;

wherein the portion of the magnet core overlaps the portion of the loop antenna region;

or

wherein the portion of the magnet core does not overlap the portion of the loop antenna region;

a communication circuit, configured to provide radio communication.

14. The communication appliance of claim 13, further comprising:

a battery holding region for holding a battery;

wherein the battery holding region has battery contacts for making electrical contact with battery connections on a battery arranged in the battery holding region;

wherein the battery contacts are electrically coupled to at least one of the antenna arrangement or to the communication circuit.

15. An antenna structure, comprising:

at least one loop antenna that forms a loop antenna region;

at least one antenna having a magnet core;

wherein at least one portion of the magnet core is arranged above a portion of the loop antenna region;

wherein the portion of the magnet core overlaps the portion of the loop antenna region;

or

wherein the portion of the magnet core does not overlap the portion of the loop antenna region.

16. An antenna structure, comprising:

at least one magnet body;

at least one first antenna region that is formed by a first electrically conductive structure that runs around the magnet body, so that a first magnetic flux is provided by a first surface of the magnet body;

at least one second antenna region that is formed by a second electrically conductive structure that runs on a second surface of the magnet body and forms a loop-like region, so that a second magnetic flux is provided by a second surface of the magnet body;

wherein the second surface is at an angle to the first surface.

17. The antenna structure of claim 16, further comprising:

at least one third antenna region that is formed by a third electrically conductive structure that runs around the magnet body, so that a third magnetic flux is provided by a third surface of the magnet body.

18. The antenna structure of claim 17,

wherein the first antenna region and the third antenna region are arranged on opposite marginal regions of the magnet body.

19. The antenna structure of claim 16,

wherein the first electrically conductive structure and the second electrically conductive structure are electrically conductively connected to one another.

20. The antenna structure of claim 16,

wherein the first electrically conductive structure forms at least one turn around the magnet body.

21. An antenna arrangement, comprising:

at least one integrated circuit;

at least one antenna structure that is coupled to the integrated circuit, the at least one antenna structure comprising;

at least one magnet body;

at least one first antenna region that is formed by a first electrically conductive structure that runs around the magnet body, so that a first magnetic flux is provided by a first surface of the magnet body;

at least one second antenna region that is formed by a second electrically conductive structure that runs on a second surface of the magnet body and forms a loop-like region, so that a second magnetic flux is provided by a second surface of the magnet body;

wherein the second surface is at an angle to the first surface.