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http://dx.doi.org/10.6109/JKIICE.2009.13.1.6

Design of V/UHF band Small Dipole Circular Array Active Antenna  

Ko, Ji-Hwan (금오공과대학교 전자공학부)
Lee, Cheol-Soo (국방과학연구소)
Kim, Kang-Uk (경북대학교 전자전기컴퓨터학부)
Cho, Young-Ki (경북대학교 전자전기공학부)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.13, no.1, 2009 , pp. 6-16 More about this Journal
Abstract
For the application to the direction finding(DF) antenna for V/UHF bands, circular active array composed of 9 dipole element has been investigate. For miniaturization of the overall size array, the element has been chosen to be of the top-hat dipole type. For the broadband operation over 20-1300MHz, some number of pin diodes have been inserted in each arms of each dipole element. By employing this type of each element dipole, the effective dipole length can be increased or decreased according as the inserted pin diodes is on or off. The active array antenna has been design to be directly connected to the balanced push full amplifier such that the amplifier may play a role as a balloon and may improve the sensitivity as a receiver as well. The active array antenna has been designed and fabricated. Some experimental results have been presented in comparison with simulated results.
Keywords
Active array antenna; Direction finding antenna; Active dipole;
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