Antenna arrangement, communication appliance and antenna structure

• US 10,096,902 B2
• Filed: 04/22/2014
• Issued: 10/09/2018
• Est. Priority Date: 04/22/2013
• Status: Active Grant

• Current Assignee: Infineon Technologies AG
• Original Assignee: Infineon Technologies AG
• Inventors: Raggam, Peter, Kronschlaeger, Oliver, Rampetzreiter, Stephan, Gruber, Josef
• Primary Examiner(s): Smith, Graham
• Assistant Examiner(s): Maldonado, Noel
• Application Number:
  US14/258,032
• Publication Number:
  US 20140313092A1
• Time in Patent Office: 1,631 Days
• Field of Search: 235491, 343787, 742867
• 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 first planar antenna contacting a support structure and coupled to the at least one integrated circuit and that forms a first planar antenna region; and

wherein the support structure is configured to couple to a substrate;

at least one second antenna coupled to the integrated circuit having a magnet core; and

wherein the magnet core comprises a magnetic axis parallel to an edge of the support structure;

wherein at least one portion of the at least one second antenna is arranged over the first planar antenna region; and

wherein the at least one integrated circuit is disposed on the support structure or the substrate.

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

a support;

wherein the at least one first planar antenna and the at least one second antenna are arranged on a front side of the support.

3. The antenna arrangement of claim 1,

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

4. The antenna arrangement of claim 1,

wherein the at least one second 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 at least one contact pad is arranged on the back side of 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 first planar antenna or the second 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 first planar antenna that is coupled to the integrated circuit and that forms a first planar antenna region contacting a support structure; and

wherein the support structure is configured to couple to a substrate; and

wherein at least one integrated circuit is disposed on the support structure or the substrate;

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

wherein the magnet core comprises a magnetic axis parallel to an edge of the support structure;

wherein at least one portion of the magnet core is arranged over the first planar antenna region; and

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 first planar antenna that forms a first planar antenna region contacting a support structure; and

wherein the support structure is configured to couple to a substrate;

at least one second antenna having a magnet core; and

wherein the magnet core comprises a magnetic axis parallel to an edge of the support structure;

wherein at least one portion of the second antenna is arranged over the first planar antenna region; and

wherein at least one integrated circuit is disposed on the support structure or the substrate.

16. An antenna structure, comprising:

at least one first planar antenna that forms a first planar antenna region;

wherein the first planar antenna is a planar loop antenna;

at least one second antenna having a magnet body;

wherein the magnet body comprises a magnetic axis parallel to an edge of the support structure; and

wherein at least one portion of the second antenna is arranged over the first planar antenna region; and

at least one third antenna region formed around the magnet body; and

wherein the antenna arrangement is a subscriber identity module.

17. The antenna structure of claim 16,

wherein the first planar antenna and the second antenna are electrically conductively connected to one another.

18. The antenna structure of claim 16,

wherein the at least one second antenna comprises a first electrically conductive structure forms at least one turn around the magnet body.

19. The antenna structure of claim 16,

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

20. 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 first planar antenna that forms a first planar antenna region;

wherein the first planar antenna is a planar loop antenna;

at least one second antenna having a magnet body;

wherein the magnet body comprises a magnetic axis parallel to an edge of the support structure; and

wherein at least one portion of the second antenna is arranged over the first planar antenna region; and

at least one third antenna region formed around the magnet body.