A Spectral Rotation Approach for the Efficient Calculation of the Mutual Coupling Between Rectangular Apertures

Author

Tiberi, Gianluigi ; Bertini, Stefano ; Monorchio, Agostino ; Mazzarella, Giuseppe ; Montisci, Giorgio

Author_Institution

Dept. of Inf. Eng., Univ. of Pisa, Pisa, Italy

Volume

10

fYear

2011

fDate

7/3/1905 12:00:00 AM

Firstpage

131

Lastpage

134

Abstract

In this letter, a procedure based on the spectral rotation is introduced that allows us to calculate the mutual coupling between apertures in the spectral domain without evaluating any convolution products (reaction integral) directly. A numerical evaluation of the computational cost is presented to show the efficiency of the method for electrically large problems. Numerical examples are given to highlight the agreement between the spatial and spectral rotation methods. Finally, the procedure is applied for the de sign of a horn antenna array with rotated apertures.

Keywords

antenna arrays; aperture antennas; horn antennas; numerical analysis; spectral-domain analysis; convolution product; electrically large problem; horn antenna array; numerical evaluation; rectangular apertures mutual coupling; rotated aperture; spatial rotation method; spectral domain; spectral rotation method; Antenna arrays; Apertures; Arrays; Couplings; Horn antennas; Mutual coupling; Spectral analysis; Horn antennas arrays; mutual coupling; numerical methods; spectral domain;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2011.2111350

Filename

5709970