Wireless communication device having a reduced sar value
AssigneePalm, Inc.
InventorsWolfgang Glocker, Stefan Huber, Thorsten Kowalski, Martin Oelschlager, Michael Schreiber, Martin Weinberger
Life of this patent
Estimating the term…
Abstract
In order to reduce the SAR value in a wireless communication device (MP), an additional, current-conducting corrective element (CE1) is coupled to and configured in relation to the printed circuit board (LP) and the antenna (AT1) such that the amplitude level (IM1, NIM1) and/or the phase angle of electrical currents (I3, I1, I2) on the antenna (AT1), the printed circuit board (LP), and the corrective element (CE1) are adjusted relative to each other in such a way that the SAR distribution resulting from such currents becomes minimal.
Claims35
1-34. (canceled)
A wireless communication device with a reduced SAR value, comprising:
- at least one circuit board;
- at least one antenna coupled to the at least one circuit board for at least one of emitting and receiving electromagnetic radio energy fields;
- and
- at least one first additional, current-conducting corrective element for SAR value reduction coupled to the circuit board and embodied such that at least one of an amplitude level and a phase angle of electrical currents on the antenna, the circuit board and the corrective element are adjusted in relation to each other, wherein a maximum SAR distribution which results overall as a result of electrical currents in body tissue of a user becomes minimal when the user carries the wireless communication device or brings the wireless communication device up to a head area of the user to speak or to listen.
A circuit board for a wireless communication device with a reduced SAR value, the wireless communication device including at least one antenna coupled to the circuit board for at least one of emitting and receiving electromagnetic radio energy fields, the circuit board comprising at least one first additional, current-conducting corrective element for SAR value reduction embodied such that at least one of an amplitude level and a phase angle of electrical currents on the antenna, the circuit board and the corrective element are adjusted in relation to each other, wherein a maximum SAR distribution which results overall as a result of the electrical currents in body tissue of a user becomes minimal when the user carries the wireless communication device or brings the wireless communication device up to a head area of the user to speak or to listen.
Dependencies are inferred from the claim text.