Abstract: Vehicles with adjustable metamaterial systems, integrated on the outside or inside of their non-conductive fuselage, have the ability to control their radar cross section dynamically for the purposes of evading detection or spoofing their size by looking larger or more numerous. The frequency response of a metamaterial system can be obtained by combining the RF properties of the individual metamaterial layers that comprise it. A first metamaterial layer that can controllably switch between transmissive and reflection in a relevant frequency band and a second absorptive layer results in a controllable radar cross-section with the ability of controlling the amplitude of the reflected radar pulse. The first layer can be modulated with a repetitive waveform to change the phase of a reflected wave that results in a doppler shift in frequency. The frequency of the modulation can result in a change in range, velocity, or combinations of both.

Abstract: A reconfigurable antenna systems includes a set of envelopes of active metamaterial panels, each envelope in the set being shaped to approximate a surface of at least partial revolution of a curve about an axis, wherein the surface defines a focal locus; a wideband antenna array disposed within the focal locus; and a controller, coupled to the panels, configured to activate each one of the panels, so as to control a property of each of the panels, the property selected from the group consisting of transmissivity, reflectivity, absorption, phase, polarization, bandwidth, angle sensitivity, resonant frequency, and combinations thereof.

Abstract: Disclosed embodiments provide a framework to synchronize delivery of shipments from one or more shipping entities or other entities at a delivery carrier to enable consolidation of the shipments for delivery to a recipient. In response to obtaining a recipient request and proposed delivery orders for a set of fulfillment centers, a logistics optimization platform system determines a shipping date for each fulfillment center that allows for arrival of the shipments at a delivery carrier location at a time that allows the delivery carrier to consolidate these shipments into a single delivery for a recipient. The shipping entity can finalize the delivery orders using these shipping dates and provide these delivery orders to the fulfillment centers to fulfill the recipient request and enable the delivery carrier to consolidate the shipments into a single delivery for the recipient.

Abstract: A reconfigurable antenna system includes an antenna array; a set of metamaterial panels configured to surround the antenna array; a control unit, coupled to each of the metamaterial panels, for selectively addressing each of the metamaterial panels to control separately at least one property of each of the metamaterial panels; and a receiver coupled to the antenna array and to the control unit. The control unit is configured to monitor signal reception by the antenna array via the receiver and to establish a set of configurations of the metamaterial panels to produce a pattern of reception according to a set of prespecified criteria that include a set of azimuthal and elevational ranges characterizing the configurations. Optionally, the system further includes a transmitter coupled to the antenna array and to the control unit.