Experimental Results of a Compressive Reflector Antenna Producing Spatial Coding

This paper presents the design and fabrication of a Compressive Reflector Antenna (CRA)for high-sensing-capacity millimeter-wave imaging applications. The CRA is fabricated using additive manufacturing or 3D printing and metalized by applying silver conductive coating spray on its surface. The near-fields of the CRA are measured when it is fed by a conical horn antenna, a compressive horn antenna, and a perturbed cavity. The singular value distribution and sensing capacity of the CRA fed by the aforementioned antennas are calculated and compared.