Antenna design for portable devices has evolved from bulky external components to highly integrated internal systems that support multi-band operations such as 5G, Wi-Fi, and GPS. A "complete paper" on this topic typically covers the transition from simple monopole antennas to complex systems and millimeter-wave (mm-wave) arrays . Key Antenna Types in Portable Devices
Contemporary mobile units utilize several standardized internal antenna architectures: Antennas for portable devices
Often etched into the metal bezel of modern smartphones to save internal space. Antenna design for portable devices has evolved from