Movable antennas (MAs) have gained attention in wireless communications for their ability to dynamically adjust positions to optimize signal propagation. This article proposes general MA architectures and implementation methods to enhance communication performance while balancing cost and complexity. The architectures include element-level and array-level MAs, with array-level MAs offering more practical implementation due to reduced complexity and power consumption. Dual-scale MAs, mounted on mobile platforms, combine large-scale and small-scale movement for improved channel reconfiguration. Implementation methods include mechanical and electronic approaches, such as using actuators, fluid antennas, and reconfigurable devices. Electronic methods, like dual-mode antennas and dense arrays, enable equivalent movement without physical displacement. Comparisons show that mechanically driven MAs are slower but more cost-effective, while electronically driven MAs offer faster response and higher accuracy. Numerical results demonstrate that MAs significantly outperform fixed-position antennas (FPAs) in terms of sum-rate and radiation patterns. The study highlights the potential of MAs in future wireless networks, emphasizing the need for further research into practical implementation and integration.Movable antennas (MAs) have gained attention in wireless communications for their ability to dynamically adjust positions to optimize signal propagation. This article proposes general MA architectures and implementation methods to enhance communication performance while balancing cost and complexity. The architectures include element-level and array-level MAs, with array-level MAs offering more practical implementation due to reduced complexity and power consumption. Dual-scale MAs, mounted on mobile platforms, combine large-scale and small-scale movement for improved channel reconfiguration. Implementation methods include mechanical and electronic approaches, such as using actuators, fluid antennas, and reconfigurable devices. Electronic methods, like dual-mode antennas and dense arrays, enable equivalent movement without physical displacement. Comparisons show that mechanically driven MAs are slower but more cost-effective, while electronically driven MAs offer faster response and higher accuracy. Numerical results demonstrate that MAs significantly outperform fixed-position antennas (FPAs) in terms of sum-rate and radiation patterns. The study highlights the potential of MAs in future wireless networks, emphasizing the need for further research into practical implementation and integration.