TY - JOUR T1 - Frequency-Tunable Antenna Using IFA-to-Loop Mode Switching for Compact Wireless Devices JO - Journal of Microwaves, Optoelectronics and Electromagnetic Applications A1 - Abdelgwad, Ahmad H. SN - 2179-1074 UL - 10.1590/2179-10742026v25i2302643 VL - 25 Y1 - 2026 PB - Brasil ER -