Fixture for mobile radio equipment in a vehicle

• US 7,443,343 B2
• Filed: 04/21/2004
• Issued: 10/28/2008
• Est. Priority Date: 04/23/2003
• Status: Expired due to Fees

• Current Assignee: Audioton Kabeliwert GmbH
• Original Assignee: Auditon Kabelwerk GmbH Zweigniederlassung
• Inventors: Schlegel, Thomas, Straub, Karsten
• Primary Examiner(s): Owens; Douglas W.
• Assistant Examiner(s): Tran; Chuc
• Application Number:
  US10/553,433
• Publication Number:
  US 20070178754A1
• Time in Patent Office: 1,651 Days
• Field of Search: 343/700.MS, 343/702, 343/741, 343/846, 343/851, 343/895
• US Class Current: 343/700.0MS
• CPC Class Codes: B60R 11/0241 for telephones
• CPC Class Codes: H01Q 1/3291 mounted in or on other locations inside the vehicle or vehicle body
• CPC Class Codes: H01Q 17/00 Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems

Abstract

The invention relates to a vehicle mobile radio holder for mounting a mobile radio terminal in a vehicle, with the vehicle mobile radio holder having a housing with a first housing part which is shaped to hold a mobile radio terminal. The vehicle mobile radio holder also has an electrical interface for connection of an external antenna to the vehicle mobile radio holder, and a coupling antenna which is electrically connected to the interface, for non-contacting electromagnetic coupling of RF signals between the coupling antenna and the antenna of the mobile radio terminal which is inserted into the vehicle mobile radio holder. The vehicle mobile radio holder also has one or more elements for reflection of electromagnetic radiation which has been emitted from the antenna of the mobile radio terminal inserted into the vehicle mobile radio holder and has not been injected into the coupling antenna, and/or has one or more elements for absorption of this electromagnetic radiation.

Claims

1. A vehicle mobile radio holder for mounting a mobile radio terminal in a vehicle, comprising:

a vehicle mobile radio holder having a housing with a first housing part which is shaped to hold a mobile radio terminal;

an electrical interface for connection of an external antenna to the vehicle mobile radio holder; and

a coupling antenna which is electrically connected to the interface, for non-contacting electromagnetic coupling of RE signals between the coupling antenna and the antenna of a telephone which is inserted into the vehicle mobile radio holder;

wherein the vehicle mobile radio holder includes at least one reflective element for reflection of electromagnetic radiation which has been emitted from the antenna of the mobile radio terminal inserted into the vehicle mobile radio holder and has not been injected into the coupling antenna;

wherein the holder has at least one absorber element for absorption of the electromagnetic radiation, in which the absorber element is composed of a foam which absorbs electromagnetic radiation and is arranged underneath the coupling antenna or to the side of the coupling antenna, when viewed from the inserted mobile radio terminal.

2. The vehicle mobile radio holder as claimed in claim 1, wherein the absorber element is alternatively composed of one or more absorber structures which absorb electromagnetic radiation and are arranged underneath the coupling antenna, or to the side of the coupling antenna, when viewed from the inserted mobile radio terminal.

3. The vehicle mobile radio holder as claimed in claim 2, wherein the absorber structures are aligned essentially at right angles to a main emission direction of the antenna of the inserted mobile radio terminal.

4. The vehicle mobile radio holder as claimed in claim 1, wherein the reflective element is formed from a conductive layer arranged underneath the coupling antenna when viewed from the inserted mobile radio terminal.

5. The vehicle mobile radio holder as claimed in claim 4, wherein the conductive layer completely covers at least the area covered by the coupling antenna.

6. The vehicle mobile radio holder as claimed in claim 4, wherein the conductive layer is aligned essentially at right angles to a main emission direction of the antenna of the inserted mobile radio terminal.

7. The vehicle mobile radio holder as claimed in claim 1, wherein the reflective element is formed from a conductive layer arranged at the side of the coupling antenna.

8. The vehicle mobile radio holder as claimed in claim 1, wherein the housing of the radio holder has a second housing part that forms that face of the housing which faces away from the inserted mobile radio terminal, the second housing part being coated with an electrically conductive layer or alternatively is composed of an electrically conductive plastic.

9. The vehicle mobile radio holder as claimed in claim 8, wherein the second housing part is provided at least in places with a layer composite which has absorber structures.

10. The vehicle mobile radio holder as claimed in claim 1, wherein the housing of the radio holder has a third housing part that at least partially surrounds the inserted mobile radio terminal together with the first housing part, the third housing part being coated with an electrically conductive layer or alternatively is composed of an electrically conductive plastic.

11. The vehicle mobile radio holder as claimed in claim 10, wherein the third housing part is detachably connected to the first housing part by connecting means selected from a group consisting of a locking mechanism, a means of latching and by means of hinges connected to the first housing part.

12. The vehicle mobile radio holder as claimed in claim 10, wherein the third housing part is provided at least in places with a layer composite which has absorber structures.

13. The vehicle mobile radio holder as claimed in claim 1, wherein the coupling antenna is aligned essentially at right angles to a main emission direction of the antenna of the inserted mobile radio terminal.

14. The vehicle mobile radio holder as claimed in claim 1, wherein the coupling antenna has conductors which are arranged essentially parallel to one another and are coupled to one another, with the two outer conductors being connected in order to form a loop that is not entirely closed, the conductors being composed of conductive material and surround the central conductor.

15. The vehicle mobile radio holder as claimed in claim 1, wherein the coupling antenna is in the form of a two-layer or multiple-layer coupling structure with two or more coupling structure elements arranged one above the other.