A Single Pixel Millimeter-Wave Imaging System Based on Metamaterials

Abstract

Abstract-Based on metamaterials and compressive sensing theory, we design a single pixel millimeterwave fast imaging system by a 1D aperture array. The aperture array is realized by a column of complementary electric-lc (cELC) units etched on a microstrip transmission line. Each cELC unit resonates at a different frequency, where the energy is coupled from the aperture to free space. A sequence of random field patterns can be obtained by controlling geometric parameters of each cELC unit. We use the frequency as the index of measurement matrix which well satisfies the restricted isometry property (RIP) and is well suited for compressive sensing (CS). A prototype of CS imaging system operating at Ka-band (27-40 GHz) is fabricated which can detect a 5 cm * 5 cm object precisely at a distance of 50 cm.

High Gain Defected Slots 3D Antenna Structure for Millimeter Applications

“…OAM modes can provide higher data rates in these frequency range. Various research groups have used different techniques to explore the benefits of mmw with minimum propagation limitation effects by using OAM waves [3][4].…”

Single pixel scanning based millimeter wave imaging

“…It is feasible to reconstruct an image with a SP detector (Pittman, 1995;Shapiro, 2008;Duarte, 2008;Bromberg, 2009). The modern technologies use spatial light modulation range from mechanical masks (Heidari, 2009) to micro-opto-electro-mechanical systems (Coltuc, 2015) and metamaterials using SP algorithm to reconstruct the scene (Bai, 2017). SP camera is a distinct structure for imaging systems, so random masks for imaging based on compressive sensing has been offered by (Chan, 2008).…”