Title :
Evolutionary design of a wide-band twisted dipole antenna for X-band application
Author :
Zhu Liu ; Sanyou Zeng ; Yuhong Jiang ; Changhe Li ; Ni Ouyang
Author_Institution :
Sch. of Comput. Sci., China Univ. of Geosci., Wuhan, China
Abstract :
A novel dipole antenna at X-band with wide-band operation is presented in this paper. A wire structure model with two centrosymmetric arms used for evolutionary design is proposed, which can be encoded using a vector of real-valued parameters for evolutionary algorithms to optimize. Differential evolution is used to solve the antenna problem, and the results we get show good performance: bandwidth larger than 4.5GHz and peak gain above 8dBi over the bandwidth. Compared with the antenna designed by a state-of-the-art conventional method we referenced, which has a bandwidth about 2.5GHz with peak gain around 7dBi, the evolved antenna shows significant improvements.
Keywords :
broadband antennas; dipole antennas; evolutionary computation; microwave antennas; wire antennas; X-band application; antenna problem; bandwidth 2.5 GHz; bandwidth 4.5 GHz; centrosymmetric arms; differential evolution; evolutionary algorithms; evolutionary design; real-valued parameters; wide-band operation; wide-band twisted dipole antenna; wire structure model; Bandwidth; Dipole antennas; Educational institutions; Optimization; Vectors; Wires;
Conference_Titel :
Evolvable Systems (ICES), 2013 IEEE International Conference on
Conference_Location :
Singapore
DOI :
10.1109/ICES.2013.6613276
