TUNABLE CIRCUIT ELEMENTS FOR DYNAMIC, PER ELEMENT POWER
First Claim
1. A communication device, comprising:
- a radio frequency (RF) transmitter that amplifies outgoing communication signals to a total radiated power (TRP) level;
a matching network electrically connected to the RF transmitter-that divides the TRP level of received, outgoing communication signals into a first power level at a first network output and to a second power level at a second network output;
first and second antennas electrically connected respectively to the first and second network output and which radiate the divided, outgoing communication signals at the first and second power levels respectively; and
a specific absorption rate (SAR) controller communicatively connected to the transmitter and the matching network and which controls the matching network to optimize complete communication device TRP and total isotropic sensitivity (TIS) by configuring matching networks on a per antenna element basis while conforming to SAR limits.
2 Assignments
0 Petitions
Accused Products
Abstract
A communication device and method mitigates specific absorption rate (SAR) exposure of a user. A radio frequency (RF) transmitter amplifies outgoing communication signals to a total radiated power (TRP) level. A matching network electrically connected to the RF transmitter receives the outgoing communication signals. The matching network divides the TRP level of received, outgoing communication signals to a first power level at a first network output and to a second power level at a second network output. First and second antennas electrically connected respectively to the first and second network output radiate the divided, outgoing communication signals at the first and second power levels. A SAR controller communicatively connected to the matching network controls the matching network to shift transmit power between the first and second antennas while maintaining TRP level to reduce SAR exposure of the user.
-
Citations
20 Claims
-
1. A communication device, comprising:
-
a radio frequency (RF) transmitter that amplifies outgoing communication signals to a total radiated power (TRP) level; a matching network electrically connected to the RF transmitter-that divides the TRP level of received, outgoing communication signals into a first power level at a first network output and to a second power level at a second network output; first and second antennas electrically connected respectively to the first and second network output and which radiate the divided, outgoing communication signals at the first and second power levels respectively; and a specific absorption rate (SAR) controller communicatively connected to the transmitter and the matching network and which controls the matching network to optimize complete communication device TRP and total isotropic sensitivity (TIS) by configuring matching networks on a per antenna element basis while conforming to SAR limits. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A method for mitigating specific absorption rate (SAR) exposure of a user of a communication device, the method comprising:
-
amplifying outgoing communication signals to a total radiated power (TRP) level; dividing the TRP level of received, outgoing communication signals into a first power level at a first network output and to a second power level at a second network output; radiating the divided, outgoing communication signals at the first and second power levels via a first and second antenna respectively connected to first and second network outputs; and deterministically optimizing complete communication device TRP and total isotropic sensitivity (TIS) by configuring matching networks on a per antenna element basis while conforming to SAR limits. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
-
Specification