A novel miniaturized printed folded dipole antenna has been designed for narrowband sensing applications. It is shown that the antenna may be systematically engineered to achieve matching to a practical source impedance at frequencies well below its half-wavelength resonance using series-LC loading and asymmetrical arm widths. This approach is used to design an inherently well-matched antenna that does not require an external matching network and demonstrates approximately 75% miniaturization, excellent co-to cross-polarization separation, over 24 dB higher realized gain, and strongly improved radiation efficiency relative to an unloaded folded dipole of the same electrically small size. Experimental validation of a fabricated prototype demonstrates excellent agreement with simulations.

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A multimethod geophysical survey was carried out in the archaeological site of Europos (northern Greece), to study the combined effectiveness and the merits of an integrated approach. Resistivity mapping was used to detect the shallower remains of the subsurface structures. Also, resistivity tomographieswere carriedout alongdenseprofiles, to obtain furtherinformationonthevertical and lateral extent of the buried bodies. Two-dimensional inversion of resistivity data was performed using the smoothness constrained and robust inversion schemes.The magnetic total and residual field maps of the area studied are presented. Two-dimensional inversion of magnetic profiles was performed using the Levenberg^Marquadt method.The results of the magnetic data processing are in agreement with the anomalous zones that are revealed by the resistivity prospection.The results obtained by different methods assisted the interpretation of the three-dimensional subsurface structuresinferred by the resistivity tomographies.A comparison of the results of the applied surveying methods was made, checking for the relative merits and demerits of the different techniques.Their combination is discussed, in terms of providing enhanced views contradicting the use ofa single method.Technicaldisadvantages ofthe multimethod approach are also pointed out