Radiation characteristics of waveguide-type zeroth-order resonator

Author

Shimizu, Kenta ; Kubo, Hiroshi ; Sanada, Atsushi

Author_Institution

Grad. Sch. of Sci. & Eng., Yamaguchi Univ., Ube, Japan

fYear

2010

fDate

7-10 Dec. 2010

Firstpage

1529

Lastpage

1532

Abstract

A zeroth-order resonator constructed from a composite right/left-handed waveguide-type transmission line is proposed. The zeroth-order mode has the same fields at all unit cells constituting the transmission line. The mode has two kinds of fields dependent on the boundary condition at the both ends. The radiation characteristics of a resonator with radiative windows are investigated. The plane of polarization changes due to the boundary condition. The radiation pattern agrees to the pattern of the array factor with the same number of elements. The radiation efficiency above 0.95 is obtained. Finally a resonator composed of 4 unit cells is made to confirm the radiation characteristics.

Keywords

lattice constants; resonators; transmission lines; array factor; composite left-handed waveguide-type transmission line; composite right-handed waveguide-type transmission line; radiation characteristics; radiation pattern; radiative windows; unit cells; waveguide-type zeroth-order resonator; Antenna radiation patterns; Arrays; Boundary conditions; Dispersion; Power transmission lines; Resonant frequency; Transmission line measurements; Waveguide; gain; left-handed transmission line; resonator;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference Proceedings (APMC), 2010 Asia-Pacific

Conference_Location

Yokohama

Print_ISBN

978-1-4244-7590-2

Electronic_ISBN

978-1-902339-22-2

Type

conf

Filename

5728175