Reflectarray element based on variable line length for millimeter-wave radar applications

Author

Pham, Kien T. ; Nguyen, B.D. ; Van-Su Tran ; Bui, Lan-Phuong P. ; Linh Mai

Author_Institution

Sch. of Electr. Eng. Vietnam, Vietnam Nat. Univ. HCMC, Ho Chi Minh City, Vietnam

fYear

2012

fDate

10-12 Oct. 2012

Firstpage

218

Lastpage

221

Abstract

This paper presents a novel structure of reflectarray element for millimeter-wave reflectarray antennas. The proposed reflectarray element is based on a cut ring patch coupled through an annular slot to a circular patch connected with a variable-length line. The reflectarray element is designed for working at 76 GHz. A progressive phase range covering 460 degrees has been achieved by varying the length of microstrip line. The linearity of the reflection phase versus line-length is also reported and improved by modifying parameters of the patches.

Keywords

loop antennas; microstrip antenna arrays; millimetre wave antenna arrays; millimetre wave radar; reflectarray antennas; slot antenna arrays; annular slot; circular patch; frequency 76 GHz; microstrip line; millimeter-wave radar application; millimeter-wave reflectarray antennas; progressive phase range; reflectarray element; reflection phase versus variable line-length; ring patch;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Technologies for Communications (ATC), 2012 International Conference on

Conference_Location

Hanoi

ISSN

2162-1020

Print_ISBN

978-1-4673-4351-0

Type

conf

DOI

10.1109/ATC.2012.6404263

Filename

6404263