FULL-ANALYTICAL PROCEDURE FOR THE DESIGN OF MICRO-MAGNETIC RADIATORS

Recently, small magnetic radiators are becoming more and more important for a large variety of applications involving the use of narrow transmission bandwidth in wireless sensor networks, data tracking, or environment monitoring, where they can be used not only in free-space conditions, but also inside complex electromagnetic media. As a matter of fact, the antenna is an essential component that impacts the efficiency of the transmission, the size of the device, and the bandwidth operability. In this paper an analytical procedure is introduced, that allows the design of magnetic antennas with arbitrary shape and extremely reduced dimensions. Since the design procedure is analytical, it can be efficiently applied to synthesize antennas in the free space, but also in general media. Simulations and measurements exhibit a good agreement.