Saenz, E.Guven, K.Özbay, EkmelEderra, I.Gonzalo, R.2016-02-082016-02-0820101687-5869http://hdl.handle.net/11693/22291The mutual coupling between elements of a multifrequency dipole antenna array is experimentally investigated by S -parameter measurements and planar near-field scanning of the radiated field. A multifrequency array with six dipoles is analyzed. In order to reduce the coupling between dipoles, a planar metasurface is placed atop the array acting as superstrate. The mutual coupling of the antenna elements in the absence and presence of the superstrate is presented comparatively. Between 3 and 20dB mutual coupling reduction is achieved when the superstrate is used. By scanning the field radiated by the antennas and far-field measurements of the radiation pattern, it is observed that the superstrate confines the radiated power, increases the boresight radiation, and reduces the endfire radiation.EnglishAntenna elementBoresightEnd-fireFar field measurementMicrowave imagingMulti frequencyMultifrequency arraysMutual couplingPlanar near-field scanningRadiated FieldRadiated powerRadiation patternsS-Parameter measurementsSuperstratesAntenna arraysDirectional patterns (antenna)Fuzzy controlScattering parametersDipole antennasArticle10.1155/2010/843624