Planar near-field measurements of the electric field components are used to determine where to place
external components, such as a loudspeaker or camera, without significantly affecting the radiated
field. The location of the peak value of the electric field is discussed. The three principal electric field
components are simulated in order to illustrate which of the individual components 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. The study shows that the optimal location of a camera or a loudspeaker can be determined
directly from the raw, unprocessed, electric near-field distribution. The result is that metallic objects
should be located in areas below local minima in the electric field amplitude of the total field.
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发表于 2006-6-21 17:03:00
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