KU Leuven Research & Development

A method (1000) for use in millimeter-wave beamforming comprises acquiring (1004) a direction of a first beam (103) and a direction of a second beam (105); selecting (1008) an analog beamforming profile based on an angular separation between said first beam (103) and said second beam (105); and communicating (1010) through said first beam (103) and said second beam (105) according to the selected analog beamforming profile.

Example embodiments relate to a computer-implemented method for reducing self-interference (130) from a transmitter array (220, 250) at a receiver array (230, 260), the computer-implemented method comprising: generating (201) a set of beamforming antenna pairs (210) by selecting at least two non-identical antenna pairs (214, 215) from transmitter antennas (221 - 223) within the transmitter array (220) or from receiver antennas (261, 262, 263) within the receiver array (260); determining (202) a null space of the self-interference (217) at the receiver array (230, 260) comprising null space vectors (216) of the respective beamforming antenna pairs (211 - 213); and determining (203) beamforming coefficients (218) for the respective antennas within the set of beamforming antenna pairs (210) that reduce self-interference at the receiver array based on a linear combination (219) of the null space vectors (216) of the respective beamforming antenna pairs (211 - 213).

A reservoir computing method and related system. The method comprises providing a pulse wave representation of a reservoir input and a MOSFET-based compute node of a reservoir computing system. A body terminal of the MOSFET is configured to apply a bias signal to the body region. The MOSFET is operable in floating mode in the absence of the bias signal. The MOSFET displays a history-dependent threshold voltage when driven by input pulses in floating mode. The method further includes removing the bias signal from the body terminal; applying input pulses to a gate terminal of the MOSFET, thus causing history-dependent variations in the threshold voltage; and acquiring an output sequence related to the compute node while the MOSFET threshold voltage is varying, by repeatedly applying readout pulses to the gate terminal of the MOSFET and simultaneously detecting a current through a channel region of the MOSFET.

A Code-Division Multiplexing radar system, comprises: a number NT transmitters, each configured to transmit a radar signal modulated by a unique code sequence, wherein one of the transmitters is configured to have a transmission power higher than the rest transmitters, a number NR receivers, each configured to receive a reflection signal caused by the transmitted radar signals, and reflected by a target, and a controller, configured to: - generate a number N virtual receive elements, for each virtual receive element VXp,q: - to detect the target, - based on the detected target, to generate a reconstructed interference signal ũp,q caused by the radar signals transmitted by the other transmitters except for the qth radar signal, and - to update a virtual receiving signal at said virtual receive element VXp,q based on the reconstructed interference signal x2.

A device (1) comprising: a first electrode (4) comprising a first electrode material of a type that, if oxidized by an oxidizing agent, is electrically insulating, a second electrode (2) comprising a second electrode material of a type that, if oxidized by said oxidizing agent, is electrically conducting, and a threshold switch layer (3) between the first electrode (4) and the second electrode (2), the threshold switch layer (3) comprising a material being switchable from an electrically insulating state to an electrically conducting state by a voltage between the first (4) and second electrode (2) crossing a threshold voltage, and a first electrode interface (40) between the threshold switch layer (3) and the first electrode (4), and a second electrode interface (20) between the threshold switch layer (3) and the second electrode (2), wherein the device (1) comprises the oxidizing agent suitable for being moveable between the first electrode (4) and the second electrode (2), the threshold switch layer (3) providing a passage for moving the oxidizing agent between the first electrode (4) and the second electrode (2).

A quantum circuit and related manufacturing method are disclosed. The quantum circuit comprises a vertical Josephson junction (1001) formed by a bottom electrode (810) in a first superconducting material layer, a tunnel barrier (830), and a top electrode (820) in a second superconducting material layer. A contact portion (811) and a coupling portion (812) of the bottom electrode are located inside and outside the Josephson junction, respectively. A transmon qubit of the quantum circuit comprises the Josephson junction and a shunt capacitor formed by the top electrode and the contact portion of the bottom electrode as capacitor plates. A readout circuit is capacitively coupled to the bottom electrode through the coupling portion and includes a coupling head (861). The coupling portion is fitted into a recessed portion of the coupling head. The top electrode is configured as a floating electrode, not resistively coupled to the first superconducting material layer.

In a first aspect, the present invention relates to a method for depositing a layer of metal phosphate (20), comprising: a) providing a working electrode (10) in contact with a solution (30) comprising metal cations and phosphate anions; and b) electrochemically forming the layer of metal phosphate (20) onto the working electrode (10); wherein the layer of metal phosphate (20) comprises a plurality of dome-shaped substructures (21) and the solution (30) further comprises an agent which promotes said dome-shaped substructures (21) being formed such that an average size thereof is reduced.

The present invention relates to a method for performing an equality checking of a first character and a second character in a cryptographic application wherein programmable bootstrapping is used, at least one of said first and said second character being encrypted, the method comprising:o checking the equality of the first character with the second character by determining a difference between said characters, ando using the difference as input for a lookup table operation through a programmable bootstrap operation, said lookup table yielding a first predetermined value if the difference equals zero and a second predetermined value different from the first predetermined value, so obtaining an equality result for the pair of characters formed by the first and the second character.

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A light sensor (100) for spectrally resolved light detection, said light sensor (100) comprises: an upper reflective element (104); a lower reflective element (106); a photo-sensitive element (114) therebetween; a spacer element (108), configured to form the lower reflective element (106) or configured to be arranged between the upper (104) and the lower reflective element (106); wherein the elements form a stack of layers which define a resonance structure (102a, 102b, 102c) between the upper (104) and the lower reflective element (106) for providing a resonance of light; wherein the spacer element (108) comprises at least two different materials (110, 112), a distribution of which is different between different pixels in an array of pixels such that a resonance wavelength is different for different pixels; and wherein for a plurality of pixels, geometrical structures smaller than the resonance wavelength are defined by the at least two different materials (110, 112).