Abstract: An electrode for a battery cell, including an active material which contains silicon and which contains a first polymer which is ionically conductive. The active material contains in this case a copolymer, which includes the first polymer and a second polymer, the second polymer being electrically conductive. A battery cell which includes at least one electrode is also described.

Abstract: Provided are a gel polymer electrolyte including a polymer network, and an electrolyte solution impregnated in the polymer network, wherein the polymer network is formed by combining a first oligomer, which includes unit A derived from a monomer including at least one copolymerizable acrylate or acrylic acid, unit C including urethane, and unit E including alkylene group substituted with one or more fluorine, in a three-dimensional structure, and a lithium secondary battery including the gel polymer electrolyte.

Abstract: Systems and methods of providing self-healing gel-type electrolyte composites for metal batteries are disclosed. According to aspects of the disclosure, a method includes preparing a ternary mixture including an electrolyte portion, a matrix precursor portion, and a self-healing portion, forming a self-healing gel-electrolyte membrane by initiating polymerization of the gel-forming precursor and the gel-forming initiator to thereby form a polymer matrix, and disposing the self-healing gel-electrolyte membrane between an anode and a cathode. The self-healing portion includes a self-healing precursor that is flowable and a self-healing initiator. The matrix precursor portion includes a gel-forming precursor and a gel-forming initiator. The electrolyte portion and the self-healing portion are disposed substantially throughout the polymer matrix and the polymer matrix includes a plurality of gel-forming active sites.

Abstract: An object is to provide a non-aqueous electrolyte solution that can improve the capacity deterioration and gas generation associated with the high-temperature storage of non-aqueous electrolyte batteries. A further object is to provide a non-aqueous electrolyte battery that uses this non-aqueous electrolyte solution. These objects can be achieved by using a non-aqueous electrolyte solution that incorporates, in prescribed contents, (A) a compound having at least two isocyanate groups per molecule and a compound having at least two cyano groups per molecule.

Abstract: A battery includes a positive electrode, a negative electrode containing graphite, and an electrolyte solution containing 2,2?-bipyridyl. The molar ratio of 2,2?-bipyridyl in the electrolyte solution to the graphite is 4.091×10?6 or less.

Abstract: A non-aqueous electrolyte solution for a secondary battery, including a boron compound represented by Formula (1). In Formula (1), R represents an alkyl group having from 1 to 12 carbon atoms, an alkenyl group having from 2 to 12 carbon atoms, or a group represented by Formula (2). In Formula (2), each of R1 to R3 independently represents a hydrogen atom, a halogen atom, an alkyl group having from 1 to 12 carbon atoms, an alkenyl group having from 2 to 12 carbon atoms, or an aryl group having from 6 to 12 carbon atoms, and * represents a bonding site with an oxygen atom in Formula (1).

Abstract: The present invention relates to a negative electrode active material and a method of preparing the same, the negative electrode active material which includes a core including artificial graphite and hard carbon, and a shell surrounding the core and including natural graphite, wherein the shell is shell is formed to cover a surface of the core by stacking and heading the natural graphite. Since the natural graphite completely surrounds the artificial graphite and the hard carbon, the hard carbon having a low initial efficiency and high electrolyte solution consumption is not exposed to the outside, and thus, high initial efficiency and life characteristics may be obtained. Also, since the natural graphite, the artificial graphite, and the hard carbon are all used, diffusion resistance of lithium ions is lower than that of a case where the natural graphite is only used, and thus, high output characteristics may be achieved.

Abstract: A non-aqueous electrolyte secondary battery has improved battery durability, a high capacity, a high density, and a large area and includes a power generating element including a positive electrode in which a positive electrode active material layer containing a positive electrode active material is formed on a surface of a positive electrode current collector, a negative electrode in which a negative electrode active material layer containing a negative electrode active material is formed on a surface of a negative electrode current collector, and a separator, a ratio of a rated capacity to a pore volume of the negative electrode active material layer being 1.12 Ah/cc or more, a ratio of a battery area to a rated capacity being 4.0 cm2/Ah or more, and a rated capacity being 30 Ah or more, wherein a variation in porosity in the negative electrode active material layer is 6.0% or less.

Abstract: An aqueous rechargeable zinc ion battery is provided, the battery comprising a cathode comprising a V3O7.H2O-graphene composite, the composite comprising a plurality of V3O7.H2O nanostructures in contact with graphene, an anode in electrical communication with the cathode, the anode comprising zinc, and an aqueous electrolyte between the cathode and the anode, the aqueous electrolyte comprising zinc ions and an ether of a type and at an amount selected to maximize a capacity retention value of the battery.

Abstract: A method of manufacturing a battery includes defining an active region and a bonding area in a first main surface of a first semiconductor substrate, forming a first ditch in the bonding area, forming an anode at the first semiconductor substrate in the active region, and forming a cathode at a carrier comprising an insulating material. The method further includes stacking the first semiconductor substrate and the carrier so that the first main surface of the first semiconductor substrate is disposed on a side adjacent to a first main surface of the carrier, a cavity being formed between the first semiconductor substrate and the carrier, and forming an electrolyte in the cavity.

Abstract: A storage battery pack includes: a secondary battery; and a circuit that includes a power consumer which consumes power of the secondary battery, and that causes the power consumer to consume a remaining power of the secondary battery until a voltage of the secondary battery reaches a voltage lower than a discharge cutoff voltage.

Abstract: A battery includes: 1) an anode; 2) a cathode; 3) a separator disposed between the anode and the cathode, wherein the separator includes at least one functional layer; and 4) a sensor connected to the at least one functional layer to monitor an internal state of the battery.

Abstract: Methods and systems for creating a battery module. A battery cell can include a vent in the bottom of the battery. To allow the battery to be attached to a cooling plate and allow the vent to function properly, an opening is formed in the cooling plate under the battery. The opening can vent gasses from the vent in the battery to atmosphere through a chamber in the cooling plate or a conduit in the cooling plate.

Abstract: Disclosed is a battery module which ensures efficient cooling performance and advantageously has a structurally firm and small design, and a battery pack and a vehicle including the battery module. The battery module includes a plurality of pouch-type secondary batteries standing in a vertical direction and arranged in a right and left direction; a plurality of cartridges configured to accommodate the pouch-type secondary batteries in an inner space thereof and stacked in a right and left direction; and a cooling plate made of a thermally-conductive material and disposed at a lower portion of the cartridges so that the cartridges are placed thereon, the cooling plate having an upper surface which is at least partially adhered and fixed to the cartridges by means of an adhesive.

Abstract: A vehicle power supply system includes: a plurality of battery modules each having a plurality of high-voltage batteries; a case for accommodating the plurality of battery modules; and a cooling circuit having a radiator, a cooling pump, a plurality of battery cooling units for cooling the plurality of battery modules, the case being disposed below a floor panel. In the cooling circuit, the plurality of battery module cooling units are disposed in parallel; and a branch portion which is provided to an upstream side of the plurality of battery module cooling units and a merging portion which is provided to a downstream side of the plurality of battery module cooling units are provided inside the case.

Abstract: An air battery includes a positive electrode using oxygen as a positive electrode active material, a negative electrode containing metal as a negative electrode active material, and a sheet layer interposed between the positive electrode and the negative electrode. The positive electrode is formed in a solid state containing an electrolyte for ionizing the metal of the negative electrode and conductive particles. The sheet layer is made of a material containing no electrolytic solution and exhibiting hygroscopic properties. The sheet layer allows the electrolyte contained in the positive electrode to penetrate toward the negative electrode, and allows metal ions generated in the negative electrode to penetrate toward the positive electrode.

Abstract: A phase shifter device is disclosed and comprises a continuous transmission line on a substrate, and a plurality of ports coupled to the continuous transmission line and spaced apart from each other around the continuous transmission line. The plurality of ports comprises a first port, a second port, a third port, a fourth port, and a fifth port. A radio frequency (RF) switch is operative to connect either the first port or the fifth port to a main RF line that is coupled to one or more antennas. The second port is located between the first port and the third port, and the fourth port is located between the fifth port and the third port. In an alternative embodiment, the phase shifter device is combined with a circular polarization quadrature divider.

Abstract: A multi-port phase shifter includes a ground, a first line on one surface of the ground, a second line on the other surface of the ground, a third line spaced at a predetermined distance from the upper surface of the first line and facing a part of the first line, and a fourth line spaced at a predetermined distance from the upper surface of the second line and facing a part of the second line. A via hole penetrates the ground. A power supply line on the one surface of the ground includes a region having the via hole. Multiple ports make the phase shifter applicable to a sector antenna for obtaining a high gain. Phase shifter volume can be reduced by implementing multiple ports in one phase shifter without coupling two or more phase shifters, thereby eliminating an additional component such as a fixing pole or a connecting pole.

Abstract: A filter device includes a transmission line formed by an electrically conducting strip printed on a surface of an electrically insulating substrate, the conducting strip having two ends respectively forming the two sole input and output connection ports of the filter device, and a plurality of resonators, each resonator including an electrically conducting strip printed on the surface of the substrate. The conducting strip of each resonator has a first end coupled to the transmission line and at least one second end that is free or connected to a ground so as to create an effective fundamental resonant wavelength specific to each resonator. For each pair of neighboring resonators of the plurality of resonators, the distance between the first ends of the two neighboring resonators is less than one tenth of the smallest effective fundamental resonant wavelength of the plurality of resonators.

Abstract: The technology described herein is directed towards a cryogenic-stripline microwave attenuator. A first high thermal conductivity substrate such as sapphire and a second high thermal conductivity substrate such as sapphire, along with a signal conductor comprising one or more attenuator lines between the substrates form a stripline. A compression component such as one or more screws, vias (plus clamps) and/or clamps presses the first high thermal conductivity substrate against one side of the signal conductor and presses the second high thermal conductivity substrate against another side of the signal conductor. The high thermal conductivity of the substrates facilitates improved thermalization, while the pressing of the substrates against the conductor reduces the thermal boundary (Kapitza) resistance and thereby, for example, improves thermalization and reduces thermal noise.

Abstract: A transmission line includes a dielectric base body including a first and second base bodies. Each of the first and second base bodies includes dielectric layers stacked on top of one another. The first base body includes a first signal conductor located between ground conductors in a stacking direction. The second base body includes a second signal conductor located between ground conductors in the stacking direction. The first and second base bodies are brought together so that one of the ground conductors of the first base body and one of the ground conductors of the second base body abut against or are adjacent to each other. Lead conductors defining both ends of the first signal conductor and lead conductors defining both ends of the second signal conductor are exposed on a mounting surface of the dielectric base body parallel or substantially parallel to the stacking direction.

Abstract: Disclosed is a capacitive non-directional coupler having a non-directional coupler printed circuit board (PCB) and a capacitive attenuator. The non-directional coupler PCB includes a coupler section configured to carry energy travelling on a main transmission line. The non-directional coupler PCB and the capacitive attenuator are configured as a capacitive voltage divider, and provide a sample of the energy on the main transmission line. Also disclosed is a method for measuring for measuring RF power using an RF power sensor having the capacitive non-directional coupler that includes with the non-directional coupler printed circuit board and the capacitive attenuator. Also disclosed is an RF power metering system that includes an RF power sensor having the capacitive non-directional coupler.

Abstract: A power distribution circuit includes a first portion, a second portion, a third portion, an isolation element, a first transmission sub-circuit and a second transmission sub-circuit. The first portion, the second portion, and the third portion are coupled to respective external components. The isolation element is coupled between the second portion and the third portion. The first transmission sub-circuit is set on one side of the isolation element, and is coupled between the first portion and the second portion. The second transmission sub-circuit is set on the other side of the isolation element, and is coupled between the first portion and the third portion. The first transmission sub-circuit and the second transmission sub-circuit are symmetrically set on both sides of the isolation element.

Abstract: A wireless control device, such as a system controller for a load control system, may comprise a light-transmissive cover for an antenna that may be illuminated to provide feedback to a user of the load control system. The light-transmissive cover may receive light energy from a light-generating circuit to provide a visible display of the light energy. The wireless control device may be mounted to, for example, a ceiling, and the light-transmissive cover may extend from the wireless control device (e.g., down from the ceiling). The light-transmissive cover may be viewed by a user at large viewing angles and at a distance away from the wireless control device, which may simplify and improve reliability of commissioning of the load control system as well as speed up troubleshooting of the load control system after commissioning is completed.

Abstract: A multi-band antenna apparatus according to one of various embodiments of the present invention may comprise: an antenna housing in which an antenna module having two or more frequency bands is mounted; a plurality of repeaters detachably coupled to the antenna housing according to slide movement thereof; connector parts which protrude from the antenna housing and are connected to the plurality of repeaters, respectively; and a bracket which fixes the antenna housing to an outer wall and couples the plurality of repeaters to the antenna housing in an individually detachable manner.

Abstract: A system includes a platform including a first mounting component and a second mounting component, the platform being secured to an external surface of a structure via the second mounting component, a first network device coupled to the first mounting component, the first network device being part of a first network, and a second network device coupled to a surface of the platform and communicably coupled to the first network device. The system may further include an energy source component configured to provide power to the first network device, wherein the second network device is configured to receive data from the first network device and provide the data to one or more client devices located within the structure.

Abstract: A rotatable antenna mount for mounting an antenna to a structure includes a mounting bracket, an antenna rotation assembly and an antenna mounting pole. The mounting bracket includes a base and two sidewalls that together define an opening into which the structure is received. An adjustment clamp is inserted through one of the sidewalls of the base and mounts the mounting bracket to the structure situated within the space. The antenna mounting pole is mounted to the rotation assembly. The antenna rotation assembly is situated on the mounting bracket and includes at least two rotation brackets that are hingedly joined to one another so that the antenna mounting pole to which an antenna is mounted may be selectively moved in at least two dimensions.

Abstract: The present invention teaches a frequency-scalable high-gain dual-polarization radio beam application platform for private, public, government, or military radio applications such as RFID (radio frequency identification), aerial and robotic inventory scanning, radio communications, telemetry, telecommand, aeronautical radionavigation, radiolocation, earth exploration, space research for terrestrial, air-to-ground, space-to-earth, or space-to-space uses.

Abstract: An electronic device having an antenna comprises a first metal casing, a second metal casing, a first hinge, a second hinge, and a first dipole antenna. A first slot antenna structure having a first half-wavelength resonant mode is constituted by the first hinge, the first metal casing, the second hinge and the second metal casing. The width of a first middle portion of the first slot antenna structure is narrower than the widths of the two end portion. The first dipole antenna unit located in the middle portion of the first slot antenna structure has a second half-wavelength resonant mode. The first dipole antenna is for exciting the first half-wavelength resonant mode. Accordingly, the antenna can be integrated with the hinges of the electronic device.

Abstract: A dual-polarized antenna in which two antenna elements are highly integrated and the size of the whole antenna is reduced while suppressing coupling between the two antenna elements without having the two antenna elements overlap each other is provided. An antenna (10) includes a conductive reflector (101) and two antenna elements (102, 103) (antenna elements) that are arranged to be spaced apart from each other. As shown in FIG. 3, in a projected view on the conductive reflector (101), longitudinal directions of the two antenna elements (102, 103) are substantially orthogonal to each other. One of the end parts (110) of the antenna element (103) in the longitudinal direction is positioned at an approximate center (109) (part around the center) of the antenna element (102) in the longitudinal direction.

Abstract: An electrical element includes a flexible antenna and a rigid member higher in rigidity than the flexible antenna. At least one of the flexible antenna and the rigid member is made of thermoplastic resin. A conductor pattern defining at least a portion of a section that performs the main function of the electrical element is provided at the flexible antenna. No conductor pattern that performs the main function of the electrical element is provided at the rigid member. Opposing surfaces of the flexible antenna and the rigid member are directly joined to each other.

Abstract: A wireless handheld or portable device includes an antenna system operable in a first frequency region and a higher, second frequency region. The antenna system comprises an antenna structure, a matching and tuning system, and an external input/output (I/O) port. The antenna structure comprises at least one radiating element including a connection point, a ground plane layer including at least one connection point, and at least one internal I/O port. At least one radiating element of the antenna structure protrudes beyond the ground plane layer. The antenna structure features at any of its internal I/O ports when disconnected from the matching and tuning system an input return loss curve having a minimum at a frequency outside the first frequency region of the antenna system. The matching and tuning system modifies the impedance of the antenna structure and provides impedance matching to the antenna system in the first and second regions.

Abstract: A portable electronic device wirelessly communicates using an embedded antenna which includes a ground plane for electronics of the device and one or more additional planes extending at any angle diverging from the ground plane. The angles between the ground plane and the one or more additional planes can be configured so that the overall antenna is physically contained within a housing of the device. A slot or notch can be configured between the planes so that the antenna can effectively operate as a slot antenna. The antenna can be sized in the device to enable near field communications, such as Bluetooth, or greater distance communications, such as Wi-Fi and/or cellular. The device could be a camera configured to communicate in a security system.

Abstract: An electronic device may be provided with wireless circuitry, a conductive housing, and a display. The display may have an active area that displays image data and an inactive area that does not display image data. The active area may completely surround the inactive area at a front face of the device. A speaker port may be aligned with the inactive area and may emit sound through the inactive area. The wireless circuitry may include first and second antenna arrays. The first array may be configured to transmit and receive wireless signals at frequencies between 10 GHz and 300 GHz through the inactive area of the display. The second array may be configured to transmit and receive wireless signals at frequencies between 10 GHz and 300 GHz through a slot in a rear wall of the conductive housing. Control circuitry may perform beam steering using the first and second arrays.

Abstract: The present disclosure provides a terminal housing and a terminal. The main board unit in the terminal housing includes a power supply module, a switching module, a first grounding area, a second grounding area and a third grounding area; the antenna unit includes a horizontal bezel, a first branch, a second branch, a third branch and a fourth branch; the power supply module is connected to the horizontal bezel through the first branch; the first end of the switching module is connected to the contact area of the second branch, the third branch, and the fourth branch, the second end of the switching module is connected to the third grounding area, and the switching module is configured to control the first end to be connected to or disconnected from the second end.

Abstract: A shroud for a small cell antenna system is designed to house cellular telephone equipment, including a plurality of transceivers, RF conditioning equipment, and a network interface, which includes an interface to a optical fiber network. The housing has walls that define an interior region. The housing has at least one movable door that can be opened and closed to respectively permit and prevent access to the interior region. A generally planar backbone is situated in the interior region. The backbone has a plurality of apertures. A plurality of elongated brackets can be mounted to the backbone. Each bracket has a plurality of hooks and is attached to the backbone by insertion of the hooks into the apertures of the backbone. RF conditioning equipment (e.g., diplexer, triplexer, multiplexer, etc.) is mounted on one of the brackets within the housing. A network interface is mounted on another one of the brackets within the housing.

Abstract: An electronic device is disclosed. The electronic device includes a main body on which a controller is mounted, a strap pin connector protruding from the main body, at least a portion of the strap pin connector having conductivity, a strap pin spaced apart from the main body and connected to the strap pin connector, at least a portion of the strap pin having conductivity, and an antenna pattern disposed in an insulating portion of an outer surface of the main body, connected to a wireless communication unit, and having conductivity. The strap pin connector, the strap pin, and the antenna pattern are electrically connected to one another and form an antenna that transmits and receives a radio wave.

Abstract: A method for repair of a multifunctional wideband array includes processes and operations of assessing electrical and structural impairment to the multifunctional wideband array; cutting an opening in a superstrate of the multifunctional wideband array to expose an impaired backskin section of a lower electronics assembly of the multifunctional wideband array; replacing the impaired backskin section with a replacement backskin section; and repairing the opening in the superstrate. A system of multifunctional wideband array repair includes a core having longitudinal core strips and transverse core strips; a backskin having electronics connected to the core and providing electrical functionality enabling the core cells of the core to function as a phased array antenna aperture; a number of splice clips connecting longitudinal core strips to longitudinal repair core strips; and a section of the backskin electrically connected and structurally bonded to the repair core strips.

Abstract: An antenna system includes a reflector, an offset feed horn and a support platform. The reflector has a reflector surface. The reflector and offset feed horn are attached to the support platform. The offset feed horn transmits RF microwave energy toward the reflector surface. The antenna system further includes a turntable which has a single rotation axis. The turntable rotates about the antenna rotation axis. The support platform is attached to the turntable such that the turntable rotates the support platform. The reflector surface has a perturbed paraboloid geometrical shape that reflects most RF microwave energy along a beam peak pointing direction. The reflector surface reflects RF microwave energy towards the earth's surface in such a manner that the reflected RF microwave energy illuminates a narrow strip of the earth's surface from nadir to a point near the earth's horizon with substantially constant intensity.

Abstract: A radio frequency antenna comprising an inner conductor or antenna surrounded by and spaced from an outer sleeve, the space between the inner conductor and the outer sleeve being filled with a granular or powder insulating material. A sealant material covers a first end of the outer sleeve for sealing and retaining the insulating material in the antenna. A method of making the antenna includes the step of bending the inner antenna and the outer sleeve during assembly following the steps of filling the space between the inner conductor and the outer sleeve with the insulating material and sealing the insulating material in the antenna. In one embodiment, the radio frequency antenna is adapted for transmitting and receiving radio frequency signals in a radio frequency vehicle exhaust control and sensor system.

Abstract: An antenna for a receiver, a transmitter, and/or a transceiver of a base station of a wireless remote-control system is provided. The antenna includes a printed circuit board (PCB) and a metallic stamped antenna structure. The antenna structure is directly mounted on the PCB. The antenna structure includes a lineal antenna body and legs. The antenna body and the legs are unitary with one another. The legs extend from the antenna body and are mechanically mounted to the PCB to support the antenna body over the PCB with the antenna body lying above the PCB within a plane.

Abstract: A vehicle includes a roof panel and a vehicle antenna device. The roof panel includes a roof portion and an antenna cover portion that protrudes from the roof portion and has an internal space. The vehicle antenna device includes a base portion and an upright portion that extends from the base portion into the internal space in the antenna cover portion. An outer imaginary plane is assumed to extend along a boundary line on a boundary portion between an outer surface of the roof portion and an outer surface of the antenna cover portion. In a state where the vehicle antenna device is mounted on the vehicle, at least part of the base portion is located below the outer imaginary plane.

Abstract: A radio frequency sensor module adapted for mounting a vehicle exhaust system structure. A bracket on the module includes a first mounting ear defining a first through aperture. A printed circuit board is coupled to the bracket. A cover defines an opening and an interior cavity in communication with the opening. The bracket and the cover are coupled together in a relationship with the printed circuit board extending through the opening in the cover and into the interior cavity of the cover and the first and second mounting ears in an abutting and overlying relationship. A mounting bolt extends through the respective first and second through apertures in the respective first and second mounting ears for securing the radio frequency module to the housing of a vehicle exhaust system.

Abstract: Provided are an antenna device, a method of manufacturing the same, and an electronic apparatus having the antenna device. The antenna device includes: an insulating substrate; a first antenna pattern formed on one surface of the insulating substrate; and a second antenna pattern formed on the other surface of the insulating substrate and connected to the first antenna pattern.

Abstract: An antenna device includes an RFIC element, a power supply coil connected to the RFIC element, and a first coil conductor including a first large-diameter loop shaped conductor and a first small-diameter loop shaped conductor. The first coil conductor functions as a booster antenna and forms an antenna resonance circuit. The power supply coil is accommodated in a recess surrounded by the first small-diameter loop shaped conductor. The power supply coil is disposed in a manner that its winding direction is aligned with the winding axis direction of the first small-diameter loop shaped conductor and its outer diameter is inside a coil opening of the first small-diameter loop shaped conductor in a planar view. The power supply coil is coupled to the first small-diameter loop shaped conductor through a magnetic field.

Abstract: Disclosed is an improved antenna integrated printed wiring board (“IAiPWB”). The IAiPWB includes a printed wiring board (“PWB”), a first radiating element, and a first split-via. The PWB has a bottom surface and the first radiating element is integrated into the PWB. The first radiating element has a first radiator. The first probe is in signal communication with the first radiator and the first split-via, where a portion of the first split-via is integrated into the PWB at the bottom surface.

Abstract: A plurality of fed elements arranged in a first direction is provided within the plane of a substrate. A plurality of non-fed elements is provided to sandwich at least one of the plurality of fed elements. The plurality of non-fed elements are loaded to the plurality of fed elements. At least one of the plurality of non-fed elements is provided between two of the plurality of fed elements arranged in the first direction. The at least one of the plurality non-fed elements is shared by the two of the plurality of non-fed elements that are adjacent to each other in the first direction. This configuration provides an array antenna that is suited for miniaturization and capable of achieving increased beam scanning angle.

Abstract: A wireless communication device includes a reflecting plate having a reflecting surface that reflects electromagnetic wave, a radome covering the reflecting plate so as to form an airflow path between the radome and the reflecting surface, and including an air inlet and an air outlet communicating with the airflow path, an array antenna provided on the reflecting surface and inside the airflow path, and including a plurality of antenna elements aligned on the reflecting surface with an interval from each other, and a communication circuit that transmits and receives a wireless signal by exciting the array antenna. The plurality of antenna elements each include an antenna pattern formed on a plate-shaped dielectric substrate extending from the reflecting surface in a direction orthogonal thereto. Dissipation effect of heat from the communication circuit can be improved, by causing air convection in the airflow path in the radome.

Abstract: An antenna apparatus that is able to improve isolation between antennas that are arranged adjacent to each other and an electronic device having the same are provided. The antenna apparatus includes a plurality of antennas, and a printed circuit board connected to the plurality of antennas, wherein the printed circuit board comprises a plurality of feeding units respectively connected to the plurality of antennas and a plurality of ground units respectively connected to the plurality of antennas, and each of the ground units is separated from the other ground units by means of at least one slot.

Abstract: A method and system which enable the automatic adjustment of the rotational speed of a radar antenna in a radar system having a continuously rotating radar antenna based on where objects are being detected. The automatic adjustment of the rotational speed of the radar antenna is controlled by a controller integrated with the radar system and is based on the bearing of the emitting antenna relative to objects being detected. The method relies on continuously reading the angular position of the antenna and corresponding the presence of detected objects to this angular position so as to automatically adjust the speed of the antenna to slow down the antenna while it is directing wave signals towards detected targets and speed up the antenna while it is directing wave signals in a direction where there are no detected objects.