Mutual coupling compensation in time modulated linear antenna arrays

Author

Yang, Shiwen ; Nie, Zaiping

Author_Institution

Dept. of Microwave Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

Volume

53

Issue

12

fYear

2005

Firstpage

4182

Lastpage

4185

Abstract

A practical approach to compensate for the mutual coupling effect in low sidelobe time modulated linear antenna arrays is proposed. Taking into account the measured complex embedded element patterns, the compensated element weights and time sequences are optimized by the differential evolution (DE) algorithm. The proposed approach is experimentally verified by the successful realization of a -30 dB sidelobe level discrete Taylor pattern from a 16-element time modulated linear array. Numerical results are compared with measured data and good agreement is reported.

Keywords

electromagnetic coupling; evolutionary computation; linear antenna arrays; modulation; differential evolution algorithm; discrete Taylor pattern; linear antenna array; mutual coupling compensation; optimization; sidelobe time modulation; time sequence; Adaptive arrays; Adaptive filters; Array signal processing; Broadband antennas; Finite impulse response filter; Frequency response; Linear antenna arrays; Microstrip antennas; Mutual coupling; Passband; Antenna arrays; differential evolution (DE); mutual coupling; time modulation;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2005.860000

Filename

1550005