Design of band-notched UWB antenna using a hybrid optimization based on ABC and DE algorithms

In this study, a novel UWB antenna with dual band-rejection is designed by using a new hybrid optimization algorithm based artificial bee colony algorithm (ABC) and differential evolution (DE). The hybrid performance of ABC and DE (H-ABCDE) is tested on well-known benchmark functions. To show its performance on a design problem, an optimization interface (OI) which simultaneously communicates with H-ABCDE and an electromagnetic simulation tool is developed. Hence OI integrating H-ABCDE and HyperLynx® 3D EM is used to design and optimize an antenna. A low profile UWB monopole antenna operating over the frequency range of 2.9-13.0 GHz is then designed through OI. In order to achieve band-rejection operation, various slits and strips have been loaded on the antenna. It thus rejects the dual-band of 3.3-3.6 GHz and 5.15-5.825 GHz corresponds to the operation bands of WLAN and WiMAX. Furthermore, the optimized antenna is prototyped to investigate the measurement performance and it is compared with several designs in the literature. Therefore, H-ABCDE can successfully adapt to the extended electromagnetic problem as well as engineering optimization tasks.