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An Integrated Antenna-Source System of Very High Ultra Wide-Band Gain for Radiating High-Power Wide-Band Pulses

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2 Author(s)
Jiheon Ryu ; Agency for Defense Dev., Daejeon, South Korea ; Jongwon Lee

Integrated antenna-source (IAS) systems depends on techniques that reduce the complexity of traditional separated antenna-source systems. The IAS has a number of advantages such as compactness, simplicity, and efficiency. However, the ultra wide-band (UWB) gain of IAS is low since the integrated system employs omni-directional antennas. Here, we propose a new IAS system. We increase the size of capacitance and implement a smooth transition structure in the new system. As a result, the proposed IAS shows a UWB gain of 0.68. It is more than double compared to that of conventional IAS systems. The radiated electric field measured at 4 m from the system has a peak value of 80.8 kV/m and a center frequency of 350 MHz. The radiated power density decreases by half when the radiation angle is changed from 0° to 60°.

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Plasma Science, IEEE Transactions on  (Volume:40 ,  Issue: 4 )