Premium
Spiral antenna with helix loaded for dual circularly polarized bands radiation
Author(s) -
Chen CanHui,
Yung E. K. N.,
Hu BinJie
Publication year - 2007
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.22596
Subject(s) - spiral antenna , helical antenna , helix (gastropod) , spiral (railway) , microwave , optics , multi band device , physics , circular polarization , radiation , antenna (radio) , polarization (electrochemistry) , radiation pattern , electrical engineering , engineering , antenna efficiency , coaxial antenna , chemistry , microstrip , geology , quantum mechanics , snail , mechanical engineering , paleontology
A spiral antenna with a helix loaded is investigated in this paper. Through combining the spiral with a helix together, circular polarization can be achieved in dual bands. Since the helix is loaded in the lower part of the spiral, this technique doesn't increase the antenna's volume but at the same time introduces another CP band. The experimental result shows that the lower band and upper band are 4.0% and 62.07% respectively. The characteristics of impedance, current distribution and radiation pattern will also be presented. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 1939–1942, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22596