Spatially modulated metamaterial array for transmit (SMMArT) and slow-leaky-wave antennas

• DOI: 10.1109/array.2016.7832580
• Publication Date: 2017-01-26T18:10:20Z
• Authors: Alessandro Saland...; Patrick M. McCormick; Mario D. Balcazar; Shannon D. Blunt
• Keywords: 0202 electrical engineering, electronic engineering, information engineering; 02 engineering and technology

Waveform diversity (WD) has the potential to profoundly impact radar operation through new advantageous uses of design degrees-of-freedom as long as the waveform and signal processing structure can be appropriately married to the physical electromagnetic (EM) and system operation. Within this context, the EM behavior of the recently introduced Spatially Modulated Metamaterial Array for Transmit (SMMArT) concept, itself a realization of a special class of MIMO radar denoted as spatial modulation, is analyzed by means of full-wave finite-elements simulations. Radiation patterns under various forms of excitation are calculated. A parametric study of a slotted Clarricoats-Waldron waveguide (CWW) is presented that identifies the practical feasibility of design constraints that must be considered in order to suppress undesired intermodal coupling.