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http://dx.doi.org/10.6109/jkiice.2008.12.3.427

High-Performance Bidirectional Active Phased-Array Antenna Coupled by Transmission Line  

Choi, Young-Kyu (신라대학교 전자공학과)
Kim, Ki-Rae (신라대학교 전자공학과)
Abstract
In order to increase the coupling efficiency of the power and phase of the active phase array antenna, we have fabricated the active phased-array antenna which is coupled by the transmission line, and investigated the relationship between the length of the coupling transmission line and coupling power and phase. The following three types of driving method - (1) giving the frequency difference between the two active antenna, (2) applying the input signal to the one side of the two antennas, and changing the eigen frequency of the other side antenna, (3) appling the different phase inputs to the active antennas was investigated. The experimental results showed that the interval of the antenna elements has not affected the power and the phase of the antenna.
Keywords
Active antenna; phased-array; transmission line; antenna coupling;
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