Available Source Parameters: Array Excitations
Far Field Pattern: Pencil Beam
In case of fixed geometry arrays, and for whatever upper bounds on the sidelobes, the optimal synthesis problem has been formulated and solved as a Convex Programming problem ,. As such, it does not require the exploitation of computationally-heavy global optimization procedures. The approach can be used as well in case one cannot define an array factor at all . In both cases of spatially-symmetric linear and planar arrays the problem can be furtherly reduced to an even simpler Linear Programming problem, which also allows to argue about uniqueness (or lack of uniqueness) of a solution .
More recently, in collaboration with the National Research Council and the department of radiotherapy at the Erasmus MC in Rotterdam, the LEMMA Group showed how the approach can be effectively exploited in order to perform a spatial (rather than angular) focusing of the field in complex and realistic scenarios - (with application to the hyperthermia cancer therapy).
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