Reconstruction of the Field Distribution on Slot Array Antennas Using the Gerchberg–Papoulis Algorithm

Author

Sano, Makoto ; Sierra-Castaner, Manuel ; Salmeron-Ruiz, Tamara ; Hirokawa, Jiro ; Ando, Makoto

Author_Institution

Dept. of Electr. & Electron. Eng., Tokyo Inst. of Technol., Tokyo, Japan

Volume

63

Issue

8

fYear

2015

fDate

Aug. 2015

Firstpage

3441

Lastpage

3451

Abstract

A method to reconstruct the field distribution on slot array antennas is presented. The field on each slot is reconstructed with high spatial resolution by extrapolating the invisible region of the plane wave spectrum (PWS) using the Gerchberg-Papoulis (G-P) algorithm. The information of the slot positions, angles, and lengths is exploited in the G-P algorithm to enhance the accuracy and resolution of the reconstructed field. The proposed algorithm is validated through the source reconstruction of a K-band radial line slot antenna (RLSA) from the near field on planar and spherical scanning surfaces.

Keywords

extrapolation; slot antenna arrays; G-P algorithm; Gerchberg-Papoulis algorithm; K-band radial line slot antenna; extrapolation; field distribution; high spatial resolution; plane wave spectrum; slot array antennas; source reconstruction; Antenna arrays; Antenna measurements; Apertures; Arrays; Electric fields; Reliability; Slot antennas; Gerchberg-Papoulis algorithm; Gerchberg???Papoulis algorithm; Near-field Antenna measurements; Slot array antennas; Source reconstruction; near-field antenna measurements; slot array antennas; source reconstruction;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2015.2434391

Filename

7109845