Abstract: An antenna structure and an electronic device are provided. The electronic device includes a housing and an antenna structure disposed in the housing. The antenna structure includes a carrier having a first carrying part and a second carrying part connected to each other, a switching circuit, a first radiating element, and a second radiating element. A thickness of the first carrying part is greater than a thickness of the second carrying part. The second carrying part includes a circuit layer and a ground layer respectively formed on opposite surfaces of the second carrying part. The switching circuit is located on the circuit layer. The first radiating element and the second radiating element are disposed on the carrier and respectively electrically connected to a feed element and the switching circuit. The second radiating element and the first radiating element are apart from and couple with each other.

Abstract: According to an embodiment of the present disclosure, an apparatus for controlling electromagnetic waves in an electromagnetic wave measurement device, the apparatus comprising: a transmitting antenna configured to generate electromagnetic waves through an aperture that controls a radiation pattern; a mode stirrer configured to reflect electromagnetic waves generated by the transmitting antenna by a plurality of unit panels; and a radio wave measurement part configured to measure electromagnetic waves transmitted through the mode stirrer, wherein the transmitting antenna generates a beam by a high-order mode.

Abstract: A linear accelerator apparatus may include a beamline enclosure that defines a polygonal backbone, and a plurality of acceleration stages, disposed along a length of the beamline enclosure. A given acceleration stage may include a drift tube assembly to conduct an ion beam therethrough, a resonator, coupled to deliver an RF signal to the drift tube assembly, and a quadrupole assembly to shape the ion beam. As such, at a first acceleration stage, a first resonator may be disposed along a first side of the polygonal backbone, and at a second acceleration stage, adjacent to and downstream of the first acceleration stage, a second resonator may be disposed along a second side of the polygonal backbone, different from the first side.

Abstract: A driving system for a lighting apparatus comprising a plurality of light sources, the driving system comprising a controller configured to provide a first digital control signal to the lighting apparatus, the first digital control signal having a first duty cycle and a first frequency, and control the first frequency of the first digital control signal.

Abstract: Disclosed here is an RF source comprising first, and second RF pulse generators arranged to deliver RF pulses for a particle accelerator and a controller arranged to control the first and second RF pulse generators to generate pulses sequentially.

Abstract: We describe a radiator unit for an antenna. The radiator unit is configured to radiate electromagnetic waves within a frequency band. The radiator unit comprises: a first radiating structure for radiating an electromagnetic wave having a first frequency within the frequency band, and a non-radiating structure coupled to the first radiating structure. One or both of (i) the first radiating structure comprises a first corrugation arranged on a first planar structure of the radiator unit, and (ii) the non-radiating structure comprises a second corrugation arranged on a second planar structure of the radiator unit.

Abstract: Aspects of the invention relate generally to lighting devices and, more particularly, to a method and system for changing a function of a lighting device. In one embodiment, the invention provides a system comprising: at least one lighting device; an audio source; a controller for synchronizing an audio signal from the audio source with a lighting signal delivered to the at least one lighting device; and a transmitter for transmitting the audio signal from the audio source to at least one external receiver.

Abstract: A light driver includes a phase-cut detector configured to determine whether phase-cut dimming is present at an input of the light driver and to generate a phase-cut detection signal in response to presence of the phase-cut dimming; and a channel controller coupled to the phase-cut detector and configured to perform receiving a current correlated color temperature (CCT) value for adjusting a CCT of an output light of a light source coupled to the light driver; and in response to receiving the phase-cut detected signal from the phase-cut detector, disregarding the CCT value by maintaining a fixed CCT at the output light and adjusting an intensity of the output light based on a level of phase-cutting at the input of the light driver.

Abstract: A system includes a plurality of lighting modules, and a plurality of MOSFET devices connected in parallel and coupled between one of the plurality of lighting modules and ground, wherein the plurality of MOSFET devices comprises a first MOSFET device group configured to provide a bleed current flowing through the one of the plurality of lighting modules, a second MOSFET device group configured to provide a delay compensation current flowing through the one of the plurality of lighting modules, a third MOSFET device group configured to provide a PWM current flowing through the one of the plurality of lighting modules, and a fourth MOSFET device group configured to adjust a current flowing through the one of the plurality of lighting modules.

Abstract: A plasma system includes a first matchless plasma source (MPS) that generates a first sinusoidal waveform having a first frequency. The plasma system includes a first filter coupled to the first MPS to filter a second frequency. The plasma system further includes a first capacitive circuit coupled to the first filter to balance reactances of the first filter and a radio frequency (RF) coil to further provide a first RF signal to a point. The plasma system includes a second MPS that generates a second sinusoidal waveform having the second frequency. The plasma system includes a second filter coupled to the second MPS to filter the first frequency. The plasma system includes a second capacitive circuit that is coupled to the second filter to balance a reactance of the second filter with the reactance of the RF coil to further provide a second RF signal to the point.

Abstract: A lamp ECU can control an additional lamp. A connector includes a power supply pin that receives battery voltage ECUB from a vehicle, a communication pin connected to a vehicle bus, and an output pin to be connected to an additional lamp. An output node of a power supply circuit is connected to the output pin and outputs power supply voltage from the output node in an enabled state. In a first mode, a first controller controls the enabled and disabled states of the power supply circuit according to a turn-on/off instruction for the additional lamp received via the vehicle bus. In a second mode, a second controller controls an output interface circuit according to the turn-on/off instruction.

Abstract: Systems and methods for plasma processing are disclosed. An exemplary system may include a plasma processing chamber including a source to produce a plasma in the processing chamber and at least two bias electrodes arranged within the plasma processing chamber to control plasma sheaths proximate to the bias electrodes. A chuck is disposed to support a substrate, and a source generator is coupled to the plasma electrode. At least one bias supply is coupled to the at least two bias electrodes, and a controller is included to control the at least one bias supply to control the plasma sheaths proximate to the bias electrodes.

Abstract: A load regulation device, such as an LED driver, may be configured to control the intensity of a light source based on an analog control signal and a preconfigured dimming curve. The LED driver may sense a magnitude of the analog control signal and determine a new low-end and/or high-end control signal magnitude that falls outside of the input signal range of the dimming curve. The LED driver may rescale the preconfigured dimming curve according to new low-end and/or high-end control signal magnitudes and dim the light source based on the rescaled dimming curve. Multiple LED drivers controlled by the same analog control signal may communicate with each other regarding the magnitude of the analog control signal sensed by each LED driver, and match their target intensity levels despite sensing different analog control signal. A controller may be provided to coordinate the operation of the multiple LED drivers.

Abstract: Devices, systems, and methods for dynamic antenna tuning compensation. One example method includes controlling a transmitter to transmit a first plurality of signals, each of the first plurality of signals having a fundamental frequency different from the others. The method includes controlling a receiver to receive a second plurality of signals, wherein each of the second plurality of signals is received at a harmonic frequency of one of the first plurality of signals. The method includes determining at least one tuning parameter for an antenna tuner based on the second plurality of signals. The method includes controlling the antenna tuner to operate using the at least one tuning parameter.

Abstract: An LED light source simultaneously compatible with SCR dimming and intelligent dimming is provided. A central control unit collects a SCR phase-cut angle of a power supply unit, generates a feedback signal according to the SCR phase-cut angle to an intelligent dimming unit; the intelligent dimming unit receives a control instruction, generates a dimming signal according to the control instruction and the feedback signal to a constant-current unit, and generates an adjustment signal according to the control signal to the central control unit; the constant-current unit adjusts light emitting state according to the dimming signal; the central control unit generates a SCR current control signal according to the SCR phase-cut angle or the adjustment signal to a SCR current output unit; the SCR current output unit adjusts an output current according to the SCR current control signal. Therefore, compatible control of SCR dimming and intelligent dimming can be implemented.

Abstract: A monopole antenna includes an antenna portion including a monopole structure disposed perpendicular to a ground surface; a signal feeding portion configured to provide a signal to be fed to the antenna portion; a signal transmission portion disposed parallel to the ground surface and connected to the antenna portion and the signal feeding portion to transmit the signal to the antenna portion; and a base disposed between the ground surface and the signal transmission portion to support the signal transmission portion, wherein the antenna portion includes a shape in which a plurality of cylinders with different radii are connected.

Abstract: A LED circuit with a sequence function includes a load component, a capacitive component, a current load, and a voltage processor. The load component provides a resistance value. The capacitive component is connected to the load component in series at anode. The capacitive component provides a capacitance value, and generates an inner voltage at the node. The current load is connected in parallel to the load component and the capacitive component to provide a current path. The voltage processor receives the inner voltage and a threshold voltage, and compares the inner voltage with the threshold voltage to generate a comparison signal. The LED circuit counts time to acquire a time value from a starting time when the voltage processor starts to generate the comparison signal to a time when a level of the comparison signal changes, and uses the time value for sequencing.

Abstract: A method of driving a light source by a light driver includes determining a dimming value based on an input from a phase-cut dimmer at the input of the light driver, determining an offset for a dimmer transfer function of the light driver based on the dimming value and a minimum set point of the dimmer transfer function, applying the offset to the dimmer transfer function of the light driver to generate an adjusted dimmer transfer function, and determining a target light output of the light source based on the dimming value and the adjusted dimmer transfer function.

Abstract: According to one aspect of the present disclosure, a system is disclosed. The system may comprise a light assembly, an imager, and/or a controller. The light assembly may be configured to emit an array of illumination elements onto a scene. The imager may be configured to capture one or more images of the illumination elements projected onto the scene. The controller may be configured to selectively activate the light assembly between a first state and a second state. In the first and second sates, respectively, first and second groups of the illumination elements are selectively activated to emit first and second patterns of illumination elements.

Abstract: A printed circuit board includes an antenna and a plurality of component pads. The printed circuit board is configured to provide an antenna tuner for a mobile data communication network. Each component pad is configured, when populated with an electrical component, to couple the electrical component to the printed circuit board to form an antenna tuner circuit for the antenna. When a first set of the component pads are populated with electrical components, the antenna tuner circuit is configured as an aperture tuner for the antenna. When a second set of the component pads are populated with electrical components, the antenna tuner circuit is configured as an impedance tuner for the antenna.