Constructing the phase converters consisting of arbitrary number of translucent surfaces

Author

Shatrow, Alexander D. ; Chuprin, Andrei D. ; Sivov, Alexei N.

Author_Institution

Inst. of Radio Eng. & Electron., Moscow, Russia

Volume

43

Issue

1

fYear

1995

fDate

1/1/1995 12:00:00 AM

Firstpage

109

Lastpage

113

Abstract

An effective analytical method of synthesis of an artificial anisotropic structure has been developed. At a design frequency, it ensures perfect match and a phase shift given. The structure may be formed by arbitrary number of inductive and capacitive grids. The method has been applied to constructing circular polarizers and twist polarizers. The geometrical parameters of the polarizers were found in the explicit form. Analytical criteria for an estimate of the bandwidth of the devices have been derived. Performance of the polarizers over a frequency band was studied. A circular polarizer has been proposed which consists of both a cascade of two inductive grids and a cascade of two capacitive grids. The polarizer can be used when very high axial ratio is needed. It ensures more than 10% bandwidth for 0.99 axial ratio. Measurements have been presented that prove adequacy of the mathematical model for real inductive and capacitive screens

Keywords

capacitance; electromagnetic wave polarisation; inductance; phase convertors; artificial anisotropic structure; axial ratio; bandwidth; capacitive grids; capacitive screens; circular polarizer; circular polarizers; design frequency; frequency band; geometrical parameters; inductive grids; inductive screens; mathematical model; measurements; performance; phase converters; phase shift; translucent surfaces; twist polarizers; Bandwidth; Boundary conditions; Conductors; Equations; Frequency conversion; Frequency dependence; Mathematical model; Merging; Polarization; Surface waves;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.366360

Filename

366360