We propose a deterministic SWAP gate for dual-rail-encoded single photon qubits. The is constructed from waveguide crossings, Mach–Zehnder interferometers and phase shifters which provide the reconfigurability. Through manipulating of shifters, we can apply either or identity gates. As an essential element nearest neighbor qubit networks, has simple structure presents minimal overhead. Providin...

A fully printable and conformal antenna array on a flexible substrate with a new LeftHanded Transmission Line (LHTL) phase shifter based on a tunable Barium Strontium Titanate (BST)/polymer composite is proposed and computationally studied for radiation pattern correction and beam steering applications. First, the subject 1× 4 rectangular patch antenna array is configured as a curved conformal ...

In the context of a massive MIMO system, number RF chains increases prohibitively. To solve problem, hybrid beamforming (BF) has been proposed. Nevertheless, amplitude constraint analog part in BF limits achieving optimal performance given by digital BF. Some studies have conducted recently to relax deploying multiple phase shifters and switches (that select shifters) structures. The tremendous...

according to high costs of phase shifters in antenna arrays, new methods for beam steering without phase shifter were introduced. frequency diverse array (fda) concept is another approach to beam steering problem. in this structure, the subsequent antenna elements are fed with stepped discrete frequencies causing continuous scanning of space in time. so a range-angle dependent scanning is made ...