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dc.contributor.authorZhu, J.en
dc.contributor.authorAntoniades, Marcos A.en
dc.contributor.authorEleftheriades, G. V.en
dc.creatorZhu, J.en
dc.creatorAntoniades, Marcos A.en
dc.creatorEleftheriades, G. V.en
dc.description.abstractA compact tri-band planar monopole antenna is proposed that employs reactive loading and a defected ground-plane structure. The reactive loading of the monopole is inspired by transmission-line based metamaterials (TL-MTM), which enables the loaded antenna to operate in two modes. The first resonance exhibits a dipolar mode over the lower WiFi band of 2.40 GHz 2.48 GHz, and the second resonance has a monopolar mode over the 5.155.80 GHz upper WiFi band. Full-wave analysis shows that the currents of the two modes are orthogonal to each other, resulting in orthogonal radiation patterns in the far field. The feature of a defected ground-plane, formed by appropriately cutting an L-shaped slot out of one of the CPW ground-planes, leads to the third resonance that covers the WiMAX band at 3.303.80 GHz. Air bridges at the intersection between the antenna and the CPW feedline ensure a balanced current. A fabricated prototype has compact dimensions of 20.0 mm × 23.5 mm × 1.59 mm, and exhibits good agreement between the measured and simulated $S$ parameters and radiation patterns. The measured radiation efficiencies are 67.4% at 2.45 GHz, 86.3% at 3.50 GHz and 85.3% at 5.50 GHz. © 2006 IEEE.en
dc.sourceIEEE Transactions on Antennas and Propagationen
dc.subjectMonopole antennasen
dc.subjectPlanar monopole antennaen
dc.subjectLoaded antennasen
dc.subjectAntenna groundsen
dc.subjectMultiband antennasen
dc.subjectRadiation efficiencyen
dc.subjectMonopole antennaen
dc.subjectFeed lineen
dc.subjectDipolar modesen
dc.subjectElectronic equipmenten
dc.subjectFolded monopole antennaen
dc.subjectDefected ground planeen
dc.subjectL-shaped sloten
dc.subjectCompact dimensionsen
dc.subjectRadiation patternsen
dc.subjectFar fielden
dc.subjectFull wave analysisen
dc.subjectMultiband antennaen
dc.subjectReactive loadingen
dc.titleA compact tri-band monopole antenna with single-cell metamaterial loadingen
dc.description.endingpage1038Πολυτεχνική Σχολή / Faculty of EngineeringΤμήμα Ηλεκτρολόγων Μηχανικών και Μηχανικών Υπολογιστών / Department of Electrical and Computer Engineering
dc.source.abbreviationIEEE Trans Antennas Propagen
dc.contributor.orcidAntoniades, Marcos A. [0000-0002-9699-2387]

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