Title :
Design of a wide-band Yagi-Uda antenna using differential evolution algorithm
Author :
Ya-li Yan ; Guang Fu ; Shu-Xi Gong ; Xi Chen ; Dong-chao Li
Author_Institution :
Nat. Key Lab. of Antennas & Microwave Technol., Xidian Univ., Xi´an, China
Abstract :
This paper presents a wide-band Yagi-Uda antenna with X-shape driven dipoles and parasitic elements using differential evolution algorithm (DE). In the optimization process, a method of moments code, NEC code simulates the antenna designs generated by DE. In order to illustrate the capabilities of the method, a nine-element Yagi-Uda antenna is given. The measured and simulated impedance bandwidth of VSWR<;1.8 reaches 19.0%, which is three times the bandwidth of the Yagi-Uda antenna using a dipole driven element. The maximum gain over the operating frequency band is 12.7dB. The results are compared with Nelar Mead method in an equally spaced array design.
Keywords :
Yagi antenna arrays; broadband antennas; dipole antenna arrays; electric impedance; method of moments; optimisation; NEC code; Nelar Mead method; X-shape driven dipole element; antenna design; differential evolution algorithm; impedance bandwidth; method of moments code; nine-element Yagi-Uda antenna; optimization process; parasitic element; spaced array design; wide-band Yagi-Uda antenna; Yagi-Uda Antenna; differential evolution algorithm; optimization;
Conference_Titel :
Signals Systems and Electronics (ISSSE), 2010 International Symposium on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-6352-7
DOI :
10.1109/ISSSE.2010.5607011
