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Browse Journals & Magazines > Antennas and Propagation, IEE ...> Volume:58 Issue:5 Help

On Conditions for Constant Radiation Characteristics for Log-Periodic Array Antennas

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1 Author(s)
Jian Yang ; Dept. of Signals & Syst., Chalmers Univ. of Technol., Gothenburg, Sweden

Wide frequency band antenna systems are required for many now and future applications, such as in radio astronomy and ultrawideband (UWB) technology. Constant radiation characteristics over a decade bandwidth are required for some of wide band applications, for example, feeds for reflector antennas in radio telescope. The log-periodic array antenna is one of the technologies for wideband antennas. In the present paper, an analysis on condition for constant radiation characteristics over wide bandwidth for a log-periodic array antenna is presented. From this condition, a guide rule for designing a wideband log-periodic array antenna is obtained. The Eleven antenna, a decade bandwidth log-periodic array antenna, is selected to illustrate the condition and verify the analysis in the paper.

Published in:
Antennas and Propagation, IEEE Transactions on  (Volume:58 ,  Issue: 5 )

Date of Publication: May 2010

Page(s):
1521 - 1526
ISSN :
0018-926X
INSPEC Accession Number:
11282219
Digital Object Identifier :
10.1109/TAP.2010.2044332
Product Type:
Journals & Magazines
Date of Publication :
01 March 2010
Date of Current Version :
03 May 2010
Issue Date :
May 2010
Sponsored by :
IEEE Antennas and Propagation Society

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