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A Novel Modified Archimedean Polygonal Spiral Antenna.
- Source :
-
IEEE Transactions on Antennas & Propagation . Jan2013, Vol. 61 Issue 1, p54-61. 8p. - Publication Year :
- 2013
-
Abstract
- In this paper, we present a novel 2–18 GHz modified Archimedean polygonal spiral antenna that approximates a circular spiral in its highest frequencies and gradually transforms itself into a square spiral antenna at its lowest frequencies of operation. The design has successfully addressed the problem of high axial ratios associated with ultra-wideband (UWB) rectangular spiral antenna systems. A low-profile, cavity backed polygonal model and two variations of the original design are presented in this study. Our results demonstrate that the polygonal spiral antenna demonstrates excellent axial ratio and gain-bandwidth performance with \leq 3~dB axial ratio over 97.5% of its operational bandwidth. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISSN :
- 0018926X
- Volume :
- 61
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Antennas & Propagation
- Publication Type :
- Academic Journal
- Accession number :
- 84599282
- Full Text :
- https://doi.org/10.1109/TAP.2012.2220114