Dr. Khalil H. Saydmarie, P., and D. Eanass U. T. Al-Shabkhoon. “ANALYSIS AND SIMULATION OF COHERENT ANTENNA Elements and Focuses”. Al-Rafidain Engineering Journal (AREJ), vol. 18, no. 3, June 2010, pp. 1-9, doi:10.33899/rengj.2010.28454.