A reflector impulse radiating antenna (IRA), which can handle a 20 kV impulse input signal, is proposed. The proposed antenna consists of a parabolic reflector, a wideband strip-line balun, and two pairs of feed arms with ground plane. A diameter of the reflector is 1600 mm, and a ratio of focus and diameter (F/D) is 0.38. The proposed strip-line balun can be easily designed and fabricated to avoid the voltage breakdown. The balanced signal fed at the feed arms goes through the balun and then terminated by resistors at the edge of reflector. The feed arms are comprised of two pairs by designing the reflector effectively. The impedance bandwidth (VSWR < 2.5) of the proposed antenna is 1715 MHz (285 - 2000 MHz, 150 %) and its peak gain at boresight (θ = 0°) is about 17.4 dBi at 1500 MHz.
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