Title :
A broad-band top-cap monopole antenna
Author :
Dazhi Yang ; Yilong Lu ; Zhongxiang Shen
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore
Abstract :
This paper presents the analysis and optimal design of a top-cap monopole antenna by using modal expansion analysis and a genetic algorithm. The accurate and efficient modal-expansion analysis is used to compute the electromagnetic fields and input impedance response of the proposed antenna. The effective emperor-selective genetic algorithm (EMS-GA) is used for automatic antenna design optimization. The optimally designed top-cap monopole antenna can achieve up to 95% bandwidth with VSWR/spl les/3.
Keywords :
broadband antennas; genetic algorithms; modal analysis; monopole antennas; EMS-GA; automatic antenna design optimization; broadband antenna; emperor-selective genetic algorithm; input impedance response; modal expansion analysis; top-cap monopole antenna; Algorithm design and analysis; Bandwidth; Coaxial components; Electromagnetic fields; Electromagnetic waveguides; Genetic algorithms; Impedance; Loaded antennas; Optimization methods; Performance analysis;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2003. IEEE
Print_ISBN :
0-7803-7846-6
DOI :
10.1109/APS.2003.1219780
