Title :
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
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;
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
