Assess the array element number of planar phased array antenna which suffers fragments combat damage. A single fragment damage as the research object, the simulation of penetration condition for Tungsten Spherical fragments is developed using the software of ANSYS/LS-DYNA. The penetration of antenna at 0°attack angel and 800m/s is simulated, and we can gain the penetrated distortion data. Based on the data the damage circular is calculated. The last one study was made on x-band planar array antennas, the array elements invulnerability of triangular setting is better than rectangular, and the influence characteristics between the position of the damage circle and the damage of the antenna. The results can be used in a rapid assessment of a battle-damaged Radar repair and maintain inventory of phased-Array element.
A 6-Port Two-Dimensional $3\times 3$ Series-Fed Planar Array Antenna for Dual-Polarized X-Band Airborne Synthetic Aperture Radar Applications