Automated Antenna Blockage Assessment Algorithm for Mobile Devices

In this work, approaches that aim to reduce SAR on human body were attempted. Algorithms were devised for automated antenna blockage assessment. These algorithms are used to determine the presence and location of obstacles in adjacent to a mobile device, A multi-antenna mock-up was fabricated to house several antennas at various locations on a palm-size device. According to the variation in the amount of coupling among antennas, the presence of an obstacle can be decided by the blockage assessment algorithm, which is built on neural network. The proposed algorithm was implemented in this work to differentiate a right/left hand holding scenario and hence verified its effectiveness.