Abstract
The microwave imaging system based on varifocal reconfigurable transmitarray (RTA) is presented and analyzed in this paper. Structure of the imaging system is presented, containing a focal-plane array and a vari-focal RTA. This imaging system can achieve flexible imaging distance, compared with conventional microwave front-view imaging method. Furthermore, by using cascaded RTAs, the image distance can be fixed, which is desirable for practical imaging system construction. This paper shows that the RTAs have promising potential in imaging systems.
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