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Browse Journals & Magazines > Electromagnetic Compatibility ...> Volume:44 Issue:1 Help

Analysis and design of two-arm conical spiral antennas

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2 Author(s)
Hertel, T.W. ; Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA ; Smith, G.S.

The two-arm, conical spiral antenna is analyzed using the finite-difference time-domain method. The analysis is validated by comparison with measurements of the input impedance and the realized gain. A parametric study is performed with the analysis, and the results from the study are used to produce new design graphs for this antenna. These graphs supplement and extend the existing, mainly empirical, design base for this antenna. Two resistive terminations, intended to improve the low-frequency performance, are examined. One is a termination formed from two lumped resistors, and the other is a new termination formed from a thin disc of resistive material. These terminations are shown to improve the front-to-back ratio and axial ratio for the antenna

Published in:
Electromagnetic Compatibility, IEEE Transactions on  (Volume:44 ,  Issue: 1 )

Date of Publication: Feb 2002

Page(s):
25 - 37
ISSN :
0018-9375
INSPEC Accession Number:
7228851
Digital Object Identifier :
10.1109/15.990708
Product Type:
Journals & Magazines
Date of Current Version :
07 August 2002
Issue Date :
Feb 2002
Sponsored by :
IEEE Electromagnetic Compatibility Society

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