Optimal Design of Focused Antenna Arrays

Author

Long Shan ; Wen Geyi

Author_Institution

Res. Center of Appl. Electromagn., Nanjing Univ. of Inf. Sci. & Technol., Nanjing, China

Volume

62

Issue

11

fYear

2014

fDate

Nov. 2014

Firstpage

5565

Lastpage

5571

Abstract

In this paper, we propose an optimal design procedure for the focused antenna array based on the maximization of power transmission efficiency between two antennas. In the optimization process, the focused antenna array to be designed is used as the transmitting antenna and a testing antenna is used as the receiving antenna, positioned in a desired area to be focused. An optimal excitation distribution can thus be obtained for the antenna array to be focused in the desired area. Three 4 × 4 microstrip patch arrays with different focusing distances are designed to validate the optimization technique and demonstrate the focusing capabilities when the antenna array size is fixed. A 6 × 6 microstrip patch array is also built to reveal how the antenna size enhances the focusing effect.

Keywords

antenna testing; focusing; microstrip antenna arrays; optimisation; receiving antennas; transmitting antennas; antenna size enhancement; focused antenna array optimal design; microstrip patch array; optimal excitation distribution; optimization process; power transmission efficiency maximization; receiving antenna; testing antenna; transmitting antenna; Electric fields; Microstrip antenna arrays; Power transmission; Receiving antennas; Testing; Transmitting antennas; Feeding network; field pattern; focused antenna array; microstrip patches;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2014.2357421

Filename

6895264