Electrically small folded helix antennas for use as self-resonant, mesoband Hpm sources

Author

Bernal, Sandra ; Tyo, J. Scott ; Skipper, Michael C. ; Abdalla, Michael D. ; Bryan, Austen

Author_Institution

Electr. & Comput. Eng. Dept., Univ. of Arizona, Tucson, AZ, USA

fYear

2013

fDate

7-13 July 2013

Firstpage

990

Lastpage

991

Abstract

We have previously considered the use of a modified, conical, folded helix antennas as the energy storage and radiation mechanism for an electrically-small, high power microwave (HPM) system. Our previous results allowed us to integrate the antenna with a HPM switch to achieve a resonance of below 40 MHz for an overall antenna dimension of 101.3 cm (ka = 0.42). In this paper, we consider other folded helix geometries in order to analyze the best one for compact, low-frequency HPM applications. The antennas were modeled using CST Microwave Studio, and each antenna type was evaluated for its resonant frequency, local field enhancement, and radiation properties.

Keywords

Q-factor; VHF antennas; antenna radiation patterns; computational geometry; conical antennas; electrical engineering computing; helical antennas; microwave antennas; CST Microwave Studio; Q factor; antenna type; bandwidth 40 MHz; conical helix antennas; electrically small folded helix antennas; energy storage; folded helix geometries; high power microwave system; local field enhancement; mesoband HPM sources; radiation mechanism; radiation properties; resonant frequency; self-resonant HPM sources; Dipole antennas; Feeds; Geometry; Helical antennas; Microwave antennas; Resonant frequency; Wires; Electrically small Antennas; Folded Helix Antenna; Q factor; dipole antennas; helical antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE

Conference_Location

Orlando, FL

ISSN

1522-3965

Print_ISBN

978-1-4673-5315-1

Type

conf

DOI

10.1109/APS.2013.6711155

Filename

6711155