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Three‐turn concave hemispherical helical antenna for satellite communication
Author(s) -
Chen Canhui,
Hu Binjie,
Yung E. K. N.
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.21349
Subject(s) - helical antenna , microwave , axial ratio , radiation , circular polarization , optics , bandwidth (computing) , antenna (radio) , communications satellite , radiation pattern , physics , turn (biochemistry) , electrical engineering , antenna gain , engineering , satellite , antenna efficiency , telecommunications , aerospace engineering , microstrip , nuclear magnetic resonance
A novel hemispherical helical antenna is designed for satellite communications in this paper. This antenna can produce circular polarization radiation over a wide angular coverage of 113°. The input impedance varies very stably in the range of 1 < cλ < 1.15. The 3‐dB axial‐ratio bandwidth is found to be 13.5% with relatively high gain of 9 dB. The current distribution and radiation pattern will also be presented. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 361–363, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21349