Steering capability of a mm-wave left-handed transmission line antenna

Author

Sajin, G. ; Craciunoiu, F. ; Mocanu, I.A. ; Ciocan, Silviu

Author_Institution

Microwave Lab., IMT Bucharest, Bucharest, Romania

Volume

1

fYear

2013

fDate

14-16 Oct. 2013

Firstpage

101

Lastpage

104

Abstract

The paper presents the results concerning the radiation characteristic scanning of a ferrite supported mm-wave (30 GHz) Zeroth-Order Resonating (ZOR) CoPlanar Waveguide (CPW) antenna based on Composite Right/Left-Handed (CRLH) transmission lines. The scanning effect is obtained by magnetically polarizing the ferrite substrate. The measurements demonstrate steering of the radiation characteristic between approx. -15° to +14° depending on the strength of biasing magnetic field between 0 T and 0.265 T. Concerning the gain, in the unbiased state the antenna gain is 4.16 dBi and increases slightly to 4.22 dBi due to small field loss reduction followed by the application of the biasing magnetic field. Also, the return loss is reduced as a result of eliminating ferrite´s low field loss.

Keywords

antenna radiation patterns; coplanar waveguides; magnetic fields; millimetre wave antennas; transmission lines; waveguide antennas; CPW antenna; CRLH transmission lines; antenna gain; biasing magnetic field; composite right/lefthanded transmission lines; coplanar waveguide; ferrite low field loss; ferrite substrate; ferrite supported mm-wave; mm-wave left-handed transmission line antenna; radiation characteristic; radiation characteristic scanning; scanning effect; small field loss reduction; steering capability; zeroth-order resonating; Antenna measurements; Antennas; Ferrites; Magnetic domains; Magnetic field measurement; Magnetic fields; Substrates;

fLanguage

English

Publisher

ieee

Conference_Titel

Semiconductor Conference (CAS), 2013 International

Conference_Location

Sinaia

ISSN

1545-827X

Print_ISBN

978-1-4673-5670-1

Electronic_ISBN

1545-827X

Type

conf

DOI

10.1109/SMICND.2013.6688100

Filename

6688100