Diversity performance of an optimized meander PIFA array for MIMO handsets

This work proposes an antenna design based on a size optimized planar inverted-F antenna (PIFA) with meander structure for multiple-input-multiple-output (MIMO) handset applications. Two elements orientations on half PCB, which cover different translations and rotations, are investigated in terms of diversity performance. A highly efficient parallel dualelement meander PIFA array prototype is implemented on a mobile handset PCB and diversity performance is evaluated in the statistical propagation environment. Neutralization line technique is also used to reveal the influence of S-parameters optimization on the diversity performance.