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A method to optimize the bandwidth of UWB planar monopole antennas
Author(s) -
Valderas D.,
Cendoya I.,
Berenguer R.,
Sancho I.
Publication year - 2006
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.21291
Subject(s) - broadband , monopole antenna , magnetic monopole , planar , standing wave ratio , bandwidth (computing) , engineering , microwave , electronic engineering , dipole antenna , electrical engineering , optics , acoustics , physics , antenna (radio) , computer science , telecommunications , microstrip antenna , computer graphics (images) , quantum mechanics
This paper describes a method to optimize a planar hexagonal monopole antenna (PHMA) for ultra‐wideband (UWB) applications. In the Smith chart, a design process is followed to improve the broadband matching of a fixed lower‐frequency‐limit rectangular monopole by a suitable geometry for the lower edge and monopole width. A prototype is simulated, constructed, and tested. As a result of the design, the achieved impedance bandwidth is larger than 1:37 (VSWR < 2). The radiation characteristics are also discussed. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 155–159, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21291