DocumentCode
2318108
Title
An electromagnetic comparison of the tapered spherical helix and the negative permittivity sphere
Author
Stuart, Howard R.
Author_Institution
Bell Labs Innovations, Whippany
fYear
2007
fDate
9-15 June 2007
Firstpage
3472
Lastpage
3475
Abstract
In this paper, the tapered spherical helix is analyzed in detail, and it is shown that the electric field of its resonant mode closely follows that of a sphere composed of material obeying the Drude dispersion relationship. An analytical formula is derived relating the inductance of the spherical helix to the plasma frequency of the spherical material mimicked by the helix.
Keywords
helical antennas; permittivity; electromagnetic comparison; negative permittivity sphere; plasma frequency; tapered spherical helix; Boundary conditions; Frequency; Geometry; Helical antennas; Inductance; Numerical simulation; Permittivity; Poles and zeros; Resonance; Wire;
fLanguage
English
Publisher
ieee
Conference_Titel
Antennas and Propagation Society International Symposium, 2007 IEEE
Conference_Location
Honolulu, HI
Print_ISBN
978-1-4244-0877-1
Electronic_ISBN
978-1-4244-0878-8
Type
conf
DOI
10.1109/APS.2007.4396285
Filename
4396285
Link To Document