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On the design of broadband omnidirectional compact antennas
Author(s) -
Bergmann J. R.
Publication year - 2003
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.11236
Subject(s) - omnidirectional antenna , coaxial antenna , antenna measurement , radiation pattern , directional antenna , antenna (radio) , antenna efficiency , engineering , broadband , dipole antenna , electronic engineering , acoustics , optics , electrical engineering , physics , telecommunications
The conventional discone antenna is well known as an easy‐to‐build broadband antenna with a vertically polarized omnidirectional radiation pattern. Here, we consider an alternative configuration where both metallic surfaces involved in discone‐type antennas are shaped. A study is performed to find body shapes that simultaneously minimize the antenna's cross‐section area and improve the antenna's performance. For this study, a numerical model based on the method of moments (MoM) is employed and the parameters used to describe the antenna shape are explored. A design example of the modified discone‐type antenna is presented and its performance is compared with that of a conventional discone antenna. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 39: 418–422, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.11236