Compensating for the mutual coupling effect in direction finding based on a new calculation method for mutual impedance

Author

Hui, H.T.

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore

Volume

2

Issue

1

fYear

2003

fDate

6/25/1905 12:00:00 AM

Firstpage

26

Lastpage

29

Abstract

A new method for the calculation of mutual impedance is introduced for the compensation of the mutual coupling effect in a dipole antenna array employed for direction finding. This method uses an estimated current distribution and a different method for the calculation of the open-circuit voltage. It is shown that the new method can significantly improve the performance of the array in terms of the sharpness and accuracy of the spatial spectrum response of the MUSIC algorithm.

Keywords

antenna theory; current distribution; dipole antenna arrays; electric impedance; electric potential; electromagnetic coupling; radio direction-finding; MUSIC algorithm; current distribution estimation; dipole antenna array; direction finding; mutual coupling effect; mutual impedance; open-circuit voltage; spatial spectrum response; Antenna arrays; Current distribution; Dipole antennas; Directive antennas; Impedance; Linear antenna arrays; Multiple signal classification; Mutual coupling; Navigation; Voltage;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2003.810763

Filename

1203845