Radiation Pattern Analysis and Phase Shifter for Base Station Mobile Communication Circular Array Antenna at 900MHz Frequency by Using 4NEC2X Software. JUBPAS [Internet]. 2024 Sep. 30 [cited 2025 May 4];32(3):69-84. Available from: https://www.journalofbabylon.com/index.php/JUBPAS/article/view/5396