Abstract: A dual band radiating element and modular antenna array suitable for application in space communications is provided. The dual band radiating element comprises a stacked patch antenna for transmitting RF signal of a first signal frequency band (e.g. S-Band) and receiving RF signals of a second signal frequency band (e.g. L-Band). The concentric design of the radiating element can achieve savings in material and mass compared to other stacked patch antennas. For effective operation in space applications, a first radiation patch in the radiating element is isolated from a second radiation patch by shielding a feed pin to the first radiation patch as it travels through the dielectric layer separating the patches. Individual radiating elements can be attached to individual filter/amplification units in a modular antenna array allowing for individual components to be easily installed, repaired or replaced with minimal impact to the rest of the antenna array and/or spacecraft.

Abstract: A method and system for tracking of a delivery of a menu item. The method includes receiving an order for the menu item from a customer interface, the order identifying a selected menu item and an address for the delivery; sending a request for preparation of the menu item; identifying an available delivery vehicle among a plurality of delivery vehicles; receiving a preparation completion notification indicating that preparation of the menu item has ended; dispatching the order for delivery, including an identification of the available delivery vehicle and the address; receiving a displacement notification indicating that the menu item is being displaced by the available delivery vehicle; retrieving geopositional data representing a geographical position of the available delivery vehicle; sending a displacement notification to the customer interface including an indication of the geographical position of the available delivery vehicle.

Abstract: A steerable antenna configuration having all actuators and the feed source mounted on a stationary side of the antenna thereby eliminating the need of having to supply power and/or communication signal through, a rotation mechanism. A first actuator rotates a reflector assembly about a first axis, and a second actuator rotates at least a main reflector of the reflector assembly about a second axis perpendicular to the first axis. The second axis is rotatable about the first axis via the first actuator.

Abstract: A steerable antenna configuration having all actuators and the feed source mounted on a stationary side of the antenna thereby eliminating the need of having to supply power and/or communication signal through, a rotation mechanism. A first actuator rotates a reflector assembly about a first axis, and a second actuator rotates at least a main reflector of the reflector assembly about a second axis perpendicular to the first axis. The second axis is rotatable about the first axis via the first actuator.

Abstract: A method and system for tracking of a delivery of a menu item. The method includes receiving an order for the menu item from a customer interface, the order identifying a selected menu item and an address for the delivery; sending a request for preparation of the menu item; identifying an available delivery vehicle among a plurality of delivery vehicles; receiving a preparation completion notification indicating that preparation of the menu item has ended; dispatching the order for delivery, including an identification of the available delivery vehicle and the address; receiving a displacement notification indicating that the menu item is being displaced by the available delivery vehicle; retrieving geopositional data representing a geographical position of the available delivery vehicle; sending a displacement notification to the customer interface including an indication of the geographical position of the available delivery vehicle.