TY - JOUR

T1 - Mobile Handset Performance Evaluation Using Radiation Pattern Measurements

A1 - Nielsen,Jesper Ødum

A1 - Pedersen,Gert Frølund

AU - Nielsen,Jesper Ødum

AU - Pedersen,Gert Frølund

PB - I E E E

PY - 2006

Y1 - 2006

N2 - The mean effective gain is an attractive performance measure of mobile handsets, since it incorporates both directional and polarization properties of the handset and environment. In this work the mean effective gain is computed from measured spherical radiation patterns of five different mobile handsets, both in free space and including a human head & shoulder phantom. Different models of the environment allow a comparison of the mean effective gain obtained for realistic models based on measurements with the total radiated power and the total isotropic sensitivity. All the comparisons are based on the mean effective gain values obtained for different orientations of the handsets in the environments. For practical measurements it is important to minimize the measurement time. The paper includes a study of the variation in mean effective gain when the number of samples in the spherical radiation pattern is reduced. Furthermore, the frequency dependence of the mean effective gain is investigated, and a method is proposed for reducing the required number of measurements on different frequencies.

AB - The mean effective gain is an attractive performance measure of mobile handsets, since it incorporates both directional and polarization properties of the handset and environment. In this work the mean effective gain is computed from measured spherical radiation patterns of five different mobile handsets, both in free space and including a human head & shoulder phantom. Different models of the environment allow a comparison of the mean effective gain obtained for realistic models based on measurements with the total radiated power and the total isotropic sensitivity. All the comparisons are based on the mean effective gain values obtained for different orientations of the handsets in the environments. For practical measurements it is important to minimize the measurement time. The paper includes a study of the variation in mean effective gain when the number of samples in the spherical radiation pattern is reduced. Furthermore, the frequency dependence of the mean effective gain is investigated, and a method is proposed for reducing the required number of measurements on different frequencies.

KW - Frequency dependence

KW - mean effective gain

KW - mobile handset performance

KW - sampling density

KW - spherical radiation pattern

KW - total isotropic sensitivity

KW - total radiated power

U2 - 10.1109/TAP.2006.877156

DO - 10.1109/TAP.2006.877156

JO - IEEE Transactions on Antennas and Propagation

JF - IEEE Transactions on Antennas and Propagation

SN - 0018-926X

IS - 7

VL - 54

SP - 2154

EP - 2165

ER -