Design of Wideband Waveguide Delay Lines to Fixed Beam Direction Antenna using Genetic Algorithm

This paper proposes a algorithm of design and modeling wideband waveguide delay lines using GA. As an example, a fixed beam direction of 20deg of planar array slot antenna based on the optimization delay lines is achieved in a bandwidth of 5%. At the same time, the VSWR of each port is less than 1.8. This method can be extended to various waveguide antennas. The proposed algorithm and antenna are well suited to low-profile communication systems.