Provided is a phased array antenna which can be used in the millimeter wave band and whose cost is lower than that of a conventional phased array antenna. The phased array antenna (1) includes: an optical modulator (OM) configured to generate a signal light beam SL by carrying out intensity modulation on a carrier light beam CL by use of a sum signal V.sub.IF+LO(t), the sum signal V.sub.IF+LO(t) being obtained by adding an intermediate frequency signal V.sub.IF(t) and a local signal V.sub.LO(t); and a time delay device (TD) configured to generate delayed signal light beams SL′1, SL′2, . . . and SL′n by imparting time delays Δt1, Δt2, . . . and Δtn to the signal light beam SL. Each feeding circuit (Fi) generates, from a corresponding delayed signal light beam SL′i, a delayed radio frequency signal V.sub.RF(t−Δti) to be supplied to an antenna element (Ai).

A system for transmission of quantum information for quantum error correction includes an ancilla qubit chip including a plurality of ancilla qubits, and a data qubit chip spaced apart from the ancilla qubit chip, the data qubit chip including a plurality of data qubits. The system includes an interposer coupled to the ancilla qubit chip and the data qubit chip, the interposer including a dielectric material and a plurality of superconducting structures formed in the dielectric material. The superconducting structures enable transmission of quantum information between the plurality of data qubits on the data qubit chip and the plurality of ancilla qubits on the ancilla qubit chip via virtual photons for quantum error correction.

Described is a method of setting up a plurality of quantum communications links, forming a quantum network providing provably secure communications and internet services over intercontinental distances without requiring direct line of sight communication or the intermediate use of the entanglement resource of satellites. Also described is a quantum communicator device for use in this method. Two or more quantum memory units are disposed at a first location, an entangled link is set up between at least two of the quantum memory units, at least one of the quantum memory units sharing in the entangled link is physically transported to a second location. The quantum communicator device comprises communications nodes, an optical interface to set up entanglement to other devices and storage nodes, each node in the form of a quantum memory unit capable of storing quantum information for a desired length of time, i.e. weeks or longer.

Described is a method of setting up a plurality of quantum communications links, forming a quantum network providing provably secure communications and internet services over intercontinental distances without requiring direct line of sight communication or the intermediate use of the entanglement resource of satellites. Also described is a quantum communicator device for use in this method. Two or more quantum memory units are disposed at a first location, an entangled link is set up between at least two of the quantum memory units, at least one of the quantum memory units sharing in the entangled link is physically transported to a second location. The quantum communicator device comprises communications nodes, an optical interface to set up entanglement to other devices and storage nodes, each node in the form of a quantum memory unit capable of storing quantum information for a desired length of time, i.e. weeks or longer.

A wireless communication system comprises a base station and one or more relay docks and transmits directional wave signals between components using high frequency waves, such as millimeter waves. A beam forming decision engine utilizes position information collected from one or more position or motion sensors of a user device to determine a direction in which to form a directional wave signal being transmitted between components of the wireless communication system.

Aspects of the subject disclosure may include, a system for receiving electromagnetic waves that propagate along a transmission medium, generating, according to the electromagnetic waves, first signals and second signals, wirelessly providing, via a short-range dielectric antenna of the waveguide system, the first signals to a base station device, and wirelessly providing, via an array of dielectric antennas of the waveguide system, the second signals to a communication device remotely located from the waveguide system. Other embodiments are disclosed.

Described is a method of setting up a plurality of quantum communications links, forming a quantum network providing provably secure communications and internet services over intercontinental distances without requiring direct line of sight communication or the intermediate use of the entanglement resource of satellites. Also described is a quantum communicator device for use in this method. Two or more quantum memory units are disposed at a first location, an entangled link is set up between at least two of the quantum memory units, at least one of the quantum memory units sharing in the entangled link is physically transported to a second location. The quantum communicator device comprises communications nodes, an optical interface to set up entanglement to other devices and storage nodes, each node in the form of a quantum memory unit capable of storing quantum information for a desired length of time, i.e. weeks or longer.

Described is a method of setting up a plurality of quantum communications links, forming a quantum network providing provably secure communications and internet services over intercontinental distances without requiring direct line of sight communication or the intermediate use of the entanglement resource of satellites. Also described is a quantum communicator device for use in this method. Two or more quantum memory units are disposed at a first location, an entangled link is set up between at least two of the quantum memory units, at least one of the quantum memory units sharing in the entangled link is physically transported to a second location. The quantum communicator device comprises communications nodes, an optical interface to set up entanglement to other devices and storage nodes, each node in the form of a quantum memory unit capable of storing quantum information for a desired length of time, i.e. weeks or longer.

A transceiver dongle enables signal penetration into a building. The transceiver dongle includes an interface for connecting the transceiver dongle with a processing circuit that provides a received RF signal. A signal processing chipset converts the received RF signals to a format that overcomes losses occurring when the RF signals penetrate a structure of the building over a wireless communications link. Transceiver circuitry converts between the RF signals and signals in the format that overcomes losses occurring when the RF signals penetrate the structure of the building as controlled by the signal processing chipset. An antenna transmits and receives the signals in the format that overcomes losses from the transceiver circuitry between the transceiver dongle and a second transceiver dongle.

A transceiver dongle enables signal penetration into a building. The transceiver dongle includes an interface for connecting the transceiver dongle with a processing circuit that provides a received RF signal. A signal processing chipset converts the received RF signals to a format that overcomes losses occurring when the RF signals penetrate a structure of the building over a wireless communications link. Transceiver circuitry converts between the RF signals and signals in the format that overcomes losses occurring when the RF signals penetrate the structure of the building as controlled by the signal processing chipset. An antenna transmits and receives the signals in the format that overcomes losses from the transceiver circuitry between the transceiver dongle and a second transceiver dongle.