3D Visualization of Directivity for Planar Arrays, Circular Arrays, and Linear Arrays

This MATLAB implementation provides comprehensive 3D visualization of directivity patterns for planar arrays, circular arrays, and linear arrays, including both 3D amplitude and phase characteristics. These array configurations are essential tools in antenna design and signal processing applications. Planar arrays are commonly employed in wide-area communication systems, circular arrays are ideal for satellite communications and radar systems, while linear arrays are frequently used for indoor signal coverage and ranging applications. The program allows users to adjust various parameters to customize array performance and directivity patterns according to specific requirements. Through the visualization results, users can clearly observe the directivity characteristics and signal propagation patterns, which is particularly valuable for learning and research in signal processing and antenna design. Key implementation features include: - Calculation of array factor using appropriate mathematical models for each array type - 3D plotting capabilities using MATLAB's surf or mesh functions for amplitude patterns - Phase visualization using color mapping or contour plots - Parameter adjustment interfaces for element spacing, number of elements, and excitation coefficients - Interactive visualization controls for different viewing angles and pattern analysis The code structure incorporates modular functions for each array type, with separate modules for pattern calculation, visualization, and parameter handling. This modular approach enables easy extension to additional array configurations and facilitates comparative analysis between different array geometries.