dc.contributor.author | Antoniades, Marcos A. | en |
dc.contributor.author | Eleftheriades, G. V. | en |
dc.creator | Antoniades, Marcos A. | en |
dc.creator | Eleftheriades, G. V. | en |
dc.date.accessioned | 2019-04-08T07:44:42Z | |
dc.date.available | 2019-04-08T07:44:42Z | |
dc.date.issued | 2005 | |
dc.identifier.uri | http://gnosis.library.ucy.ac.cy/handle/7/42783 | |
dc.description.abstract | A metamaterial balun that converts a single-ended input to a differential output over a large bandwidth is presented. The device also exhibits excellent return loss, isolation, and through characteristics over the same frequency band. The balun comprises a Wilkinson divider, followed by a +90° negative-refractive-index (NRI) metamaterial (MM) phase-shifting line along the top branch, and a -90° MM phase-shifting line along the bottom branch. Utilizing MM lines for both the +90° and -90° branches allows the slopes of their phase responses to be matched, resulting in a broadband differential output signal. The theoretical performance of the balun is verified through circuit simulations and measurements of a fabricated prototype at 1.5 GHz. The MM balun exhibits a measured differential output phase bandwidth (180° ± 10°) of 1.16 GHz (77%), from 1.17 to 2.33 GHz. The measured isolation and return loss for all three ports remain below -10 dB over a bandwidth in excess of 2 GHz, while the output quantities |S 21| and |S 31| remain above -4 dB from 0.5 to 2.5 GHz. © 2005 IEEE. | en |
dc.source | IEEE Antennas and Wireless Propagation Letters | en |
dc.source.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-31144472929&doi=10.1109%2fLAWP.2005.851005&partnerID=40&md5=ae48e1d236647801e693c9a174213575 | |
dc.subject | Computer simulation | en |
dc.subject | Metamaterial | en |
dc.subject | Metamaterials | en |
dc.subject | Refractive index | en |
dc.subject | Bandwidth | en |
dc.subject | Phase shift | en |
dc.subject | Microstrip antennas | en |
dc.subject | Negative refractive index | en |
dc.subject | Balun | en |
dc.subject | Broadband | en |
dc.subject | Broadband amplifiers | en |
dc.subject | Electric diverters | en |
dc.subject | Frequencies | en |
dc.title | A broadband Wilkinson balun using microstrip metamaterial lines | en |
dc.type | info:eu-repo/semantics/article | |
dc.identifier.doi | 10.1109/LAWP.2005.851005 | |
dc.description.volume | 4 | |
dc.description.issue | 1 | |
dc.description.startingpage | 209 | |
dc.description.endingpage | 212 | |
dc.author.faculty | Πολυτεχνική Σχολή / Faculty of Engineering | |
dc.author.department | Τμήμα Ηλεκτρολόγων Μηχανικών και Μηχανικών Υπολογιστών / Department of Electrical and Computer Engineering | |
dc.type.uhtype | Article | en |
dc.source.abbreviation | IEEE Antennas Wirel.Propag.Lett. | en |
dc.contributor.orcid | Antoniades, Marcos A. [0000-0002-9699-2387] | |
dc.gnosis.orcid | 0000-0002-9699-2387 | |