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Compact quad‐band antenna based on zeroth‐order resonator for mobile handset applications
Author(s) -
Ji Jeong Keun,
Kim Gi Ho,
Seong Won Mo
Publication year - 2010
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.25160
Subject(s) - omnidirectional antenna , radiation pattern , antenna (radio) , microwave , optics , engineering , electrical engineering , coaxial antenna , physics , electronic engineering , telecommunications
Abstract A compact quad‐band antenna using zeroth‐order resonator (ZOR) for GSM850, DCS1800, PCS1900, and UMTS operations are presented. The proposed antenna comprises a lower band ZOR portion and an upper band ZOR portion. The zeroth‐order resonant properties are analyzed by amplitude and phase distributions of the surface magnetic field using near‐field scanning system. The performance of the antenna is verified by experimental data obtained from fabrication and measurement. The antenna offers omnidirectional radiation patterns and measured radiation efficiencies exceeding about 51% and 43% for lower and upper bands, respectively. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1298–1301, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25160