Near field distribution from a planar inverted-F antenna

Planar near-field measurements of the electrical field components are used to determine where to place external components, i.e., loudspeaker, camera, etc. without affecting the radiated field significantly. The location of the peak value of the field is discussed. The three principal electrical field components are simulated, to illustrate which of the individual component that contributes the most to the total field. The measured and simulated results are compared and discussed in terms of the radiation from the planar inverted-F antenna (PIFA) element itself and from the ground plane of the antenna.