این کتابش:
http://www.4shared.com/file/44248091/fac60c67/Antenna_Theory_-_Analysis_and_Design_Cropped_fixed__Constantine_A_Balanis___2nd_Ed__John_Willey.html?s=1
اینم حل مسایلش:
http://www.4shared.com/file/46626194/e8ff4373/solution_manual_antenna_theory_by_balanis_edition2_chapter15b.html?s=1