Design of a Compact Wideband Antenna Array for Microwave Imaging Applications

Design of a Compact Wideband Antenna Array for Microwave Imaging Applications

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In the paper, wideband antenna arrays aimed at microwave imaging applications and SAR applications operating at Ka band were designed.The antenna array feeding network is realized by a low-loss SIW technology.Moreover, we have replaced the large 355 maybelline fit me feed network comprised of various T and Y junctions by a simple broadband network of compact size to more reduce losses in the substrate integrated waveguide and also save space on the PCB.

The designed power 8-way divider is complemented fanimation triaire 52 by a wideband substrate integrated waveguide to a grounded coplanar waveguide transition and directly connected to the antenna elements.The measured results of antenna array are consistent with our simulation.Obtained results of the developed array demonstrated improvement compared to previously developed binary feed networks with microstrip or SIW splitters.