Radiation pattern simulation of antenna array problem with perfectly electrically conducting object in arbitrary shape using novel hybrid method of equivalence principle algorithm and physical optics. Issue 4 (1st March 2014)

• Record Type: Journal Article
• Authors: Zhang, Kaizhi; OuYang, Jun; Yang, Feng; Zhang, Jian; Luo, Wei
• Is Part Of: IET microwaves, antennas & propagation. Volume 8:Issue 4(2014)
• Page Start: 217
• Page End: 227
• Publication Date: 2014-03-01
• Subjects: antenna arrays -- antenna radiation patterns -- physical optics; radiation pattern simulation -- antenna array problem -- perfectly‐electrically conducting object -- arbitrary shape -- equivalence principle algorithm -- physical optics -- EPA -- electromagnetic radiation -- PEC object -- domain decomposition method -- multiscale problem -- asymptotical method -- current distribution -- equivalence principle operator; Microwaves -- Periodicals; Microwave antennas -- Periodicals; Antennas (Electronics) -- Periodicals; Radio wave propagation -- Periodicals; Microwave communication systems -- Periodicals; 621.381305
• DOI: 10.1049/iet-map.2012.0626
• Languages: English
• ISSNs: 1751-8725

Abstract

Abstract : A hybrid method combining the equivalence principle algorithm (EPA) with physical optics (PO) is proposed to solve electromagnetic radiation of an antenna array with perfectly electrically conducting (PEC) object of arbitrary shape. The main idea of this approach is based on the domain decomposition method which is a scheme for multi‐scale problems. An EPA can simulate antenna array accurately, and PO is an asymptotical method to obtain current distribution on a PEC object of arbitrary shape as an electrically large problem. For an antenna array with identical elements, the equivalence principle operator only needs to be calculated and be stored once. Compared with the original EPA, this approach performs with higher efficiency and fewer iterations with acceptable accuracy. Numerical results demonstrate the feasibility of the hybrid method.