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Single‐, dual‐, and triple‐band metamaterial‐inspired electrically small planar magnetic dipole antennas
Author(s) -
Turkmen Oznur,
TurhanSayan Gonul,
Ziolkowski Richard W.
Publication year - 2014
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.28059
Subject(s) - planar , metamaterial , microwave , physics , multi band device , dipole , dipole antenna , directional antenna , magnetic dipole , optics , electrical engineering , optoelectronics , antenna (radio) , topology (electrical circuits) , computer science , engineering , computer graphics (images) , quantum mechanics
The design and performance characteristics of metamaterial‐inspired electrically small, single, dual and triple band antennas at the GSM (1.93–1.99 GHz), ISM (2.43–2.4835 GHz), and WiMAX (3.3–3.6 GHz) frequencies are reported. These antennas are based on a coaxially fed printed dipole integrated in a planar configuration with capacitively loaded loops (CLLs) as its near‐field resonant parasitic radiators. In the proposed topology, the number of operating frequencies is determined by the number of CLLs. These antennas are geometrically simple, operate as magnetic dipoles (directivities ∼1.6−2.0 dB), and have high (≥80%) radiation efficiencies at all of their operating frequencies. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:83–87, 2014