Investigation of the Relationship between the Characteristic Modes of Isolated Near-Resonant Sized Structures and a System of these Structures

Until now, characteristic mode analysis has been used to determine where to feed a near-resonant sized structure in order to generate a desired radiation pattern. It has not been used to find a location for an antenna to be placed on a device to achieve a desired radiation pattern. This investigation represents an approach to help us develop a synthesis-based technique to determine the optimal antenna placement on a device in a near-resonant system. The basis for this approach is the expected change in the behavior (shapes) of the characteristic modes in relation to the location of the antenna on the device. From this, we anticipate the development of an analytic method for optimal antenna placement.