Wideband Frequency Invariant Array Synthesis Based on Matrix Singular Value Decomposition

In this paper, an analytic method for frequency invariant (FI) array synthesis is proposed based on matrix singular value decomposition. By grouping the elements of FI into a few subarrays, pattern in whole band realized. Using algorithm, number sub arrays reduced. Simulation results show that algorithm can synthesize 64-element broadband 0.52 s. For 18-element linear array, half power beam width (HPBW) changes less than 0.6 degrees bandwidth. Moreover, range HPBW variation decreases rapidly along with increase elements. Furthermore, effectiveness verified by synthesizing low side lobe level (SLL), scanning, and notch requirements. The examples paper achieve better characteristics fewer Finally, antenna 2:1 bandwidth improved, two 23 64 are formed using antenna. active element introduced synthesized simulated full wave software.