Pattern Synthesis for a Conformal Array Antenna Mounted on a Paraboloid Reflector Using Genetic Algorithms

摘要

In this article a 12x1 conformal array antenna is designed for Identification Friend or Foe (IFF) applications. Using Genetic Algorithm (GA), the phase and amplitude weights of each element mounted on a paraboloid reflector surface is calculated. To have a broadband array with adjusted integrated balun, an optimized printed dipole is chosen as an array element. The effect of mutual coupling between the elements is taken into account through using the Multi-Level Fast Multipole Method (MLFMM). The gain of the antenna is about 15.4 dBi with a 3 dB beam width of 67 degrees and 12 degrees in the two principal planes. Also, the side lobe level of the H-plane pattern is below -25 dBi.