Compact wideband Vivaldi antenna array for microwave imaging applications

Author

Puskely, J. ; Mikulasek, Tomas

Author_Institution

Dept. of Radio Electron., Brno Univ. of Technol., Brno, Czech Republic

fYear

2013

fDate

8-12 April 2013

Firstpage

1519

Lastpage

1522

Abstract

In the paper, we describe analysis of Vivaldi antenna array aimed for microwave image application and SAR application operating at Ka band. The antenna array is fed by a SIW feed network for its low insertion loss and broadband performances in millimeter wave range. In our proposal we have replaced the large feed network by a simple relatively broadband network of compact size to reduce the losses in substrate integrated waveguide (SIW) and save space on PCB. The feed network is power 8-way divider fed by a wideband SIW-GCPW transition and directly connected to the antenna elements. The final antenna array will be designed, fabricated and obtained measured results will be compared with numerical ones.

Keywords

broadband antennas; microwave antenna arrays; microwave imaging; substrate integrated waveguides; 8-way divider; Ka band; PCB; SAR application; SIW feed network; broadband network; broadband performances; compact wideband Vivaldi antenna array; large feed network; low insertion loss; microwave imaging applications; millimeter wave range; substrate integrated waveguide; wideband SIW-GCPW transition; Antenna arrays; Antenna radiation patterns; Arrays; Impedance matching; Vivaldi antennas; Ka frequency band; SAR; SIW feeding network; Vivaldi antenna array; microwave imaging system;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (EuCAP), 2013 7th European Conference on

Conference_Location

Gothenburg

Print_ISBN

978-1-4673-2187-7

Electronic_ISBN

978-88-907018-1-8

Type

conf

Filename

6546530