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Design an active antenna using an equivalent model
Cheolsoo Lee,Jeongki Pack 대한전자공학회 2007 ITC-CSCC :International Technical Conference on Ci Vol.2007 No.7
In this paper, we designed an active dipole antenna having a low noise-figure and high gain as well as small size and wideband characteristics. Design and measurement methods using an equivalent model were also proposed. The designed antenna shows good gain and noise-figure performance in the 5:1 bandwidth, and the measurement results are agreed well with simulation results, which show that the proposed simulation method and the measurement method are worked well.
Performance Analysis of Single Channel Interferometer using circular array antenna in FH environment
JongMook Won,CheolSoo Lee,JeungMin Joo,JunHo Song,YoungJin Ryoo,KwangIl Lee,JeongKi Pack 대한전자공학회 2007 ITC-CSCC :International Technical Conference on Ci Vol.2007 No.7
In this paper, we perform the one channel Interferometer technique using circular array antenna in practical Frequency Hopping environment. For the one channel Interferometer technique, switching process and phase estimation algorithm and Correlation Vector Direction Finding (CVDF) is used. And we simulate the Direction Finding (DF) Accuracy by the error of switching and phase estimation in case Frequency Hopping signal exist. Also, the simulations include the DF error by the modulation of the interested narrow band signal.