Ridio communications device comprising an SAR value-reducing correction element

A technology for radio communication and correction parts, which is applied to antenna grounding devices, antenna supports/installation devices, circuits, etc., and can solve the problems of uncertain influence and insufficient use.

Inactive Publication Date: 2004-06-23
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when higher requirements are placed on the protection of the user's health, this precautionary measure is not sufficient, because such a shielding element has a rather insignificant influence on the actually active electromagnetic field distribution in the region of the user's head at that time. definite or even entirely by chance

Method used

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  • Ridio communications device comprising an SAR value-reducing correction element
  • Ridio communications device comprising an SAR value-reducing correction element
  • Ridio communications device comprising an SAR value-reducing correction element

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Embodiment Construction

[0020] exist Figure 1-Figure 20 In , components with the same functions and effects are denoted by the same symbols.

[0021] figure 1 A mobile radio device, in particular a mobile radiotelephone or a cordless telephone, is shown in a schematic perspective view as a first embodiment of the radio communication device MP1 according to the invention, as shown in the figure, which is divided into three main components, exactly In other words, it is divided into an upper shell OS and a lower shell US of the housing GH and a printed circuit board LP mounted in the housing. That is, in this embodiment, the housing GH is composed of two parts. It has a substantially flat rectangular shape. Its extension LE in the longitudinal direction LE is preferably chosen to be greater than its extension in the transverse direction QB, ie its width. Here, the transverse direction QB and the longitudinal direction LE form two mutually orthogonal coordinate axes of a Cartier coordinate system Q...

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Abstract

The invention relates to a radio communications device in which at least one additional SAR value-reducing correction element (KE1) is provided in and / or on the housing (GH) in such a manner that the distribution of any electric current (EC1) which might be flowing on the printed circuit board (LP) is effected from one or more local maxima (MA) thereof up to the correction element (KE1). When using the mobile radio device (MP1), a homogenization and / or a shift thus adjusts with regard to the local distribution of the overall resulting electric current (EC1*).

Description

technical field [0001] The invention relates to a radio communication device having a housing and at least one printed circuit board accommodated in the housing and used for transmitting and / or receiving radio signals. Background technique [0002] The expectation is placed on mobile radio devices that the electromagnetic radiation exposure dose for each user is kept as low as possible in order to avoid potential health hazards as much as possible. From EP0603081A1 discloses a kind of protection measure to this, wherein, in the casing of mobile radiotelephone, an electromagnetic absorption shielding plate is arranged as a radiation barrier wall in the most radiative area of ​​mobile telephone and the user's head at that time between. As another protective measure, for example from DE 196 08 189 A1, a coating with electromagnetic shielding properties is disclosed, which only covers part of the antenna and the outer surface of the housing of the mobile radiotelephone on the s...

Claims

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Application Information

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IPC IPC(8): H01Q1/52H01Q1/24H01Q1/38H01Q1/48H04B1/38H04M1/02
CPCH04B1/3838H01Q1/245H01Q1/48H01Q1/38
Inventor S·胡伯M·拉坎普O·施拉格M·施雷伯M·魏因伯格
Owner SIEMENS AG
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