Abstract: The present invention provides a self-filtering millimeter-wave wideband multilayer planar antenna. The antenna includes a first layer having a slot feed. A second layer includes at least a pair of probes fed by the slot feed from the first layer. A third layer includes at least two substantially planar radiating patches each patch respectively coupled to one of the probes on the second layer. The radiating patches are arranged to radiate a millimeter-wavelength electromagnetic wave when the slot feed receives excitation energy and transmits the energy to the radiating patch through the respective probe. The self-filtering antenna does not require a resonant cavity structure coupled to the radiating patches. Antenna arrays of arbitrary numbers of antenna elements may be constructed from the self-filtering antenna. Such arrays are particularly suitable for 5G mm-wave backhaul communications.

Abstract: Various embodiments relate to an electronic device that supports millimeter wave communication. The electronic device may include: a housing; an antenna structure including at least one antenna comprising a portion of the housing or positioned in the housing, and including an annular conductive structure comprising a conductive material, the annular conductive structure having a first surface facing an outside of the housing, a second surface facing a direction opposite the first surface, an internal space defined by the first surface and the second surface, and a plurality of slots having a repeating pattern and formed through the first surface to the internal space; a conductive member comprising a conductive material disposed in the internal space; a wireless communication circuit electrically connected with the conductive member and configured to form a directional beam using the antenna structure; and a ground electrically connected to the annular conductive structure.

Abstract: The invention provides an LED drive power supply and a controller thereof. The controller comprises a ground terminal, a sampling terminal, and a power supply terminal. The ground terminal and an output ground of a power supply module have different potentials. A drain of a power switching transistor is coupled to a positive output terminal of the power supply module, a source of the power switching transistor and the sampling terminal are coupled to a first terminal of a sampling resistor, and a second terminal of the sampling resistor is coupled to the ground terminal. The controller further includes a logic control circuit determining whether a sampling voltage input by the sampling terminal is zero; a driver generating a first driving signal to the power switching transistor; and a bias circuit configured to receive a power supply voltage.

Abstract: Radiating elements include a first and second dipole arms that extend along a first axis and that are configured to transmit RF signals in a first frequency band. The first dipole arm is configured to be more transparent to RF signals in a second frequency band than it is to RF signals in a third frequency band, and the second dipole arm is configured to be more transparent to RF signals in the third frequency band than it is to RF signals in the second frequency band. Related base station antennas are also provided.

Abstract: An antenna module includes a first antenna including a first radiator, a second radiator, a third radiator, a fourth radiator, and a fifth radiator. The first radiator has a first end and a second end opposite to each other. The first end is a first feeding end, and the second radiator, the third radiator and the fourth radiator are connected to the second end of the first radiator. The second radiator has a plurality of bending portions. The fifth radiator is connected to the second radiator, and the fifth radiator has a first ground terminal. The first radiator, the second radiator and the fifth radiator resonate in a first frequency band, the first radiator and the third radiator resonate in a second frequency band, and the first radiator and the fourth radiator resonate in a third frequency band.

Abstract: Deployable tile aperture devices, systems, and methods are provided in accordance with various embodiments. Some embodiments include a device that may include multiple aperture tiles that may be coupled with each other such the multiple aperture tiles have a stacked stowed configuration and a flat deployed configuration. Some embodiments include one or more tension chords configured to deploy the multiple aperture tiles when tension is applied to the one or more tension chords. The flat deployed configuration may include at least one side edge portion of each aperture tile from the multiple aperture tiles making contact with another side edge portion of another aperture tile from the multiple aperture tiles. The flat deployed configuration may form one or more continuous face surfaces formed from the multiple aperture tiles. The one or more tension chords may pass through at least a portion of one or more of the multiple aperture tiles.

Abstract: A clock gating circuit includes a NOR logic gate, a transmission gate, a cross-coupled pair of transistors, and a first transistor. The NOR logic gate is coupled to a first node, and receives a first and a second enable signal, and outputs a first control signal. The transmission gate is coupled between the first and a second node, and receives the first control signal, an inverted clock input signal and a clock output signal. The cross-coupled pair of transistors is coupled between the second node and an output node, and receives at least a second control signal. The first transistor includes a first gate terminal configured to receive the inverted clock input signal, a first drain terminal coupled to the output node, and a first source terminal coupled to a reference voltage supply. The first transistor adjusts the clock output signal responsive to the inverted clock input signal.

Abstract: A dual-band cross-polarized antenna includes first and second metal layers defining respective first and second driven patches configured to radiate at different frequencies, first and second feed pins connecting a first feed line to the first driven patch at respective first and second feed points thereof associated with orthogonal polarizations, and third and fourth feed pins connecting a second feed line to the second driven patch at first and second feed points thereof associated with orthogonal polarizations. The third feed pin extends through a first hole in the first driven patch to capacitively couple the third feed pin to the first driven patch. The fourth feed pin extends through a second hole in the first driven patch to capacitively couple the fourth feed pin to the first driven patch. Two or more antenna elements are arranged as a phased array antenna and packaged as an antenna module.

Abstract: A buffer circuit includes an input terminal configured to receive an input signal, an output terminal, a buffer, and an RC circuit coupled in series with the buffer between the input terminal and the output terminal. The RC circuit includes a first transistor and an RC network including a resistor and a capacitor, the first transistor is coupled in series with the resistor between a power supply node and a reference node, and the buffer and the RC circuit are configured to generate an output signal based on the input signal.

Abstract: Provided is a communication apparatus for a vehicle. The communication apparatus for a vehicle comprises: a first case forming an external surface; a communication interface unit including a processor arranged inside the first case and a plurality of first connection terminals electrically connected to the processor and arranged on a first side of the first case; and a first antenna module including a plurality of first access terminals respectively coupled to be directly separable from the plurality of first connection terminals, and a first antenna electrically connected to at least one of the plurality of first access terminals, wherein the communication interface unit and the first antenna module are coupled to each other as one body when the plurality of first connection terminals are connected to the plurality of first access terminals.

Abstract: An antenna device with high component-density but enhanced means of dissipating working heat includes a metal substrate of a wireless device, a coupler, a filter, a conductive layer, and an antenna element. The coupler is disposed on one side of the metal substrate, the metal substrate serving as a heat sink. The filter is disposed on the coupler. The conductive layer covers the coupler and is electrically connected to the filter and ground. The antenna element is disposed on the other side of the metal substrate relative to the coupler, passes through the metal substrate and is electrically connected to the coupler and the filter. A method for manufacturing the antenna device is also disclosed.

Abstract: System and method for controlling a bleeder current to increase a power factor of an LED lighting system without any TRIAC dimmer. For example, the system for controlling a bleeder current to increase a power factor of an LED lighting system without any TRIAC dimmer includes: a first current controller configured to receive a rectified voltage generated by a rectifier that directly receives an AC input voltage without through any TRIAC dimmer; and a second current controller configured to: control a light emitting diode current flowing through one or more light emitting diodes that receive the rectified voltage not clipped by any TRIAC dimmer; and generate a sensing voltage based at least in part upon the light emitting diode current, the sensing voltage representing the light emitting diode current in magnitude.

Abstract: Antenna comprising a fastening body bearing an electrically conductive circuit having at least one signal input segment and one radiating segment, the fastening body comprising two positioning portions defining therebetween a passage dimensioned to receive one edge of a PCB carrier, the input segment being borne by one of the positioning portions in order to extend facing one face of said carrier and the body comprising means for clamping the carrier against one of the positioning portions. Electronic circuit and item of electronic equipment comprising such an antenna.

Abstract: An input lighting signal optimization device includes a multiplex circuit configured to select and output a first LED lamp lighting signal or a second LED lamp lighting signal, and a MICOM configured to output a driving signal for driving a first LED lamp or a second LED lamp after receiving an output signal of the multiplex circuit through one input port and detecting a wake-up signal included in the output signal of the multiplex circuit to switch to an activation mode.

Abstract: A dual polarised omnidirectional antenna apparatus (20) capable of operating in transmit and receive, comprising at least two dual polarised directional antennas (21) configured to be mountable in a substantially equi-spaced distributed array around and pointing away from a platform, wherein the antenna apparatus (20) is configured such that, when operated in transmit, the dual polarised directional antennas operate in phase with each other to deliver a combined omnidirectional, dual polarised, performance. This increases operational bandwidth and mitigates interference effects in communications applications.

Abstract: Provided is a display device. The display device includes a main body having a display, an outer box in which a control board configured to control the display is embedded, the outer box being separated from the main body, a first antenna provided in the main body, a second antenna configured to wirelessly communicate with the first antenna, the second antenna being provided in the outer box, an antenna bracket to which the second antenna is coupled, and an antenna mount to which the antenna bracket is coupled, the antenna mount being configured to cover an opening defined in the outer box. The antenna bracket includes an antenna cover configured to cover the second antenna and made of a transparent or translucent plastic material.

Abstract: An antenna system includes a glass plate having a thickness of 1.1 mm or more and a dielectric loss tangent of 0.005 or more at 28 GHz, and an antenna located away from one of surfaces of the glass plate, wherein a ratio of electric power radiated from the antenna to electric power input into the antenna is defined as a radiation efficiency, and when an effective wavelength of an electromagnetic wave at a predetermined frequency is 10 GHz or more is denoted as ?g and the radiation efficiency as ?0 [dB] when the glass plate and the antenna are in contact, and is denoted as ??g/2 [dB] when a distance between the one of the surfaces and the antenna is ?g/2, the glass plate and the antenna are arranged to obtain the radiation efficiency of ?A [dB] that satisfies ?A??0+(??g/2??0)×0.1.

Abstract: A system has a microcontroller with operative control of a set of vehicle lights including an ability to flash all of the set of vehicle signal lights simultaneously as hazard flashers and an ability to strobe all of the set of vehicle signal lights as high conspicuity emergency lighting. Upon receipt of an indication from a vehicle data bus that the vehicle is slowing as a result of a stopping event, the microcontroller determines a speed of the vehicle and strobes the set of vehicle signal lights as high conspicuity emergency lighting if the speed of the vehicle is below a predetermined threshold.

Abstract: There are described methods and devices for intra-spacecraft communication in space, the electro-optical device having at least one of transmitting capabilities for converting a first electrical signal into a first optical signal and outputting the first optical signal within a spacecraft, and receiving capabilities for receiving a second optical signal within the spacecraft and converting the second optical signal into a second electrical signal, the electro-optical device having at least one integrated circuit dedicated to at least one of the transmitting capabilities and the receiving capabilities, the at least one integrated circuit configured for operating in an analog mode where configuration voltages for the integrated circuit are provided by analog voltage settings unaffected by radiation.

Abstract: A slot antenna in a heatable vehicle glazing established between the heating bus bar, bus bar extensions and the peripheral edge of an IR reflective coating. The antenna slot may be fed directly by a voltage source, a current source, or a coupled coplanar line at locations that excite both fundamental and higher order modes for multiband antenna applications. The slot antenna may be established between split bus bars or split bus bar extensions that limit heat loss and improve antenna efficiency. Multiple antennas can be integrated into the heatable glazing for multiband applications and/or diversity antenna systems.