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A decomposition and superposition technique is developed for the SAR analysis of a multiple antenna system. Upper and lower bounds for the total SAR can be calculated if the vector electric field from each antenna is available, while a most conservative SAR upper bound can be calculated if only SAR data from each antenna is available. A method for increasing antenna reception while decreasing peak...
A technique for using a receive signal strength indicator to measure the total isotropic sensitivity of a wireless handset is proposed in this paper. This technique separates the measurements of the mobile station radiated sensitivity and its receive antenna gain. A single measurement of the mobile station radiated sensitivity is performed while the mobile station antenna gain is obtained through...
The effect of the supporting structure for SAR measurements of wireless handsets has been investigated experimentally and numerically. A phone with a quarter wave monopole antenna was used for this investigation. Various dielectric slabs were tested as the supporting structure and configurations that resulted in a significant change in the SAR values were identified. The SAR values were obtained by...
This paper presents a procedure for SAR estimation for multi-transmitting antenna systems is proposed. This procedure can be used towards the development of a compliance test method for MIMO systems and can also be used to reduce SAR measurement uncertainty and the number of measurements needed for multi-transmitter (e.g., MIMO) systems.
A total isotropic sensitivity measurement method is presented in this paper. Mobile radiated sensitivity and antenna gain are measured separately. The antenna gain is measured using a receive signal strength indicator reporting. Solutions to RSSI reporting inaccuracy and poor resolution are also provided.
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