On Conditions for Constant Radiation Characteristics for Log-Periodic Array Antennas
Artikel i vetenskaplig tidskrift, 2010

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.


Jian Yang

Chalmers, Signaler och system, Kommunikations- och antennsystem, Antennsystem

IEEE Transactions on Antennas and Propagation

0018-926X (ISSN)

Vol. 58 5 1521-1526 5422734


Informations- och kommunikationsteknik


Elektroteknik och elektronik



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