Abstract: A surface wave antenna system is presented. The surface wave antenna system is configured to be coupled to a surface and includes an antenna and a radiation modifier. The radiation modifier includes a material having a graded dielectric constant. A final portion of the radiation modifier includes material having a dielectric constant that produces a signal phase velocity in signals emitted from the radiation modifier that is substantially equal to a phase velocity of signals on the surface.

Abstract: A mobile radio antenna includes a complete reflector is formed as one piece or by or connected to the at least one or more reflectors, or comprises at least one or more reflectors. The complete reflector comprises on the two outer longitudinal sides thereof extending in the longitudinal direction a first shield wall which shields the first and/or passive component space and/or distribution space, and a second shield wall connects directly or indirectly to the first shield wall. The two second shield walls extending on the longitudinal sides of the complete reflector protrude in the backwards direction of the antenna across a mounting plane or a section plane along which plane the first or passive component space and/or distribution space is separated or divided from the second or active component space.

Abstract: A wired pipe segment includes a body extending from a box end to a pin end and a coupler located in one of the box and pin ends. The coupler includes a carrier having at least one electrical component disposed therein and one or more antennas supported by and spaced from the carrier and being electrically coupled to the carrier through at least one of the electrical components, the antennas being formed in the carrier in a same molding machine. The segment also includes a transmission line extending away from the coupler towards the other of the box and pin end and in communication with the one or more antennas.

Abstract: The disclosure concerns an antenna with proximity sensor function. The antenna and proximity sensors can be implemented in a laptop computer, and proximity sensor loading states are surveyed and used to determine when and to what degree to alter the reactance at the junction of or along the parasitic element to optimize the frequency response and/or the impedance properties of the antenna system. An algorithm or look-up table is configured to relate proximity sensor loading states to reactance required to alter antenna characteristics.

Abstract: Antenna systems that can include first and second radiators and an electromagnetic coupler disposed adjacent to the first and the second radiators. The radiators can be tunable to one or more frequencies. The electromagnetic coupler can be, for example, an inductive coupler or a capacitive coupler. One or more of the antenna systems can be configured to use carrier aggregation by tuning the first and/or the second radiators. For example, one or more of the antenna systems can be configured to use inter-band aggregation, intra-band contiguous aggregation, and intra-band non-contiguous aggregation.

Abstract: An antenna structure is disclosed. The antenna structure includes a signal-feeding terminal; a first radiating conductor extending from the signal-feeding terminal along a first direction to include a first gradually widening path; a ground terminal configured to be separated from the signal-feeding terminal by a first gap; and a second radiating conductor extending from the ground terminal along a second direction perpendicular to the first direction to include a second gradually widening path.

Abstract: Antenna apparatus and a method of operating the antenna apparatus are provided. The antenna apparatus comprises a directional antenna comprising antenna array components, RF chains connected to the antenna array components, and a transceiver connected to the RF chains. Each RF chain comprises in sequence: a switching stage having switching circuitry selectively to connect an antenna array component, a phase shifting stage having phase shifting circuitry, and a summation stage having summation circuitry, wherein at least two of the RF chains share phase shifting circuitry and at least two of the RF chains share summation circuitry. The at least partial sharing of the RF chains, an in particular of the phase shifting circuitry provides a compact and cheap antenna apparatus, which is nonetheless capable of degree of configurability in direction and beam pattern to enable it to operate in a busy and changing environment.

Abstract: A multiband antenna assembly for transmitting or receiving signals in at least two frequency bands is disclosed according to some embodiments. The multiband antenna assembly may include a monopole antenna with a base substrate and a top substrate having defined dimensions and shapes. In some embodiments, the base substrate and the top substrate are arranged with defined distance relative to each other and define a cavity. For example, a first frequency band is basically defined by the present distance. The top substrate may include at least one slot. A second frequency band basically is defined by the design and arrangement of the one slot. The second frequency band may be different from the first frequency band. The cavity may be designed so that the first and the second frequency band comprise preferred monopole sending and/or receiving directions substantially parallel to the extension of the substrates.

Abstract: Batteries as an antenna for a device are disclosed. In an embodiment, the device comprises: at least two batteries, each battery comprising at least two conductive portions; a radio frequency, RF, isolation component configured between the at least two batteries; a transformer configured to connect a radio frequency signal to the at least two conductive portions of the at least two batteries, wherein the at least two conductive portions are configured as an antenna of the device.

Abstract: Provided is an antenna, a method for controlling an antenna and a mobile terminal. The antenna includes: a base plate, controlling apparatus, and driving apparatus, wherein M*N microcell units are provided in the base plate, each of the microcell units is in communication with neighboring microcell units, and liquid metal is provided in the multiple microcell units. The driving apparatus is connected with a controller and the base plate respectively, wherein the controlling apparatus generates a control signal according to one of the pre-stored control matrixes, and sends the control signal to the driving apparatus. Elements of the control matrix correspond to the microcell units in the base plate in a one-to-one manner, so as to control whether the liquid metal is kept in the corresponding microcell units. The driving apparatus drives, according to the control signal sent by the controlling apparatus, the liquid metal in the microcell units to flow in the microcell units.

Abstract: A first antenna and a first band switch with a first duplexer operatively coupled to a first output of the first band switch. The first duplexer provides a transmit sub-band feed and a first receive sub-band feed for a first RF band. A second duplexer is operatively coupled to a second output of the first band switch, and provides a transmit sub-band feed and a first receive sub-band feed for a second RF band. A second antenna is operatively coupled to an input of a second band switch. A first antenna matching network for the second antenna is operatively coupled to a first output of the second band switch, and provides a second receive sub-band feed for the first RF band. A second antenna matching network is operatively coupled to a second output of the second band switch, and provides a second receive sub-band feed for the second RF band.

Abstract: The present disclosure relates to the field of antenna technologies and discloses a feeding matching apparatus of a multiband antenna, a multiband antenna, and a radio communication device to improve a bandwidth and efficiency of a lower frequency band. The feeding matching apparatus of a multiband antenna includes: a grounding portion; a feeding portion connected to a signal source, where a signal of the signal source is input into the feeding portion; and two or more ground cable branches with different lengths, where one end of each ground cable branch is electrically connected to the feeding portion, the other end is electrically connected to the grounding portion, at least one ground cable branch is connected in series to a signal filtering component, and the signal filtering component is capable of preventing a signal lower than a frequency point corresponding to the signal filtering component from passing through it.

Abstract: A heated satellite dish for reducing snow and ice accumulation on a satellite dish is disclosed. The heated satellite dish includes a heating system which may include a front pad attached to a flexible rear pad, the heating system disposed between the flexible front pad and the flexible rear pad, and a securing system comprising magnets. The satellite dish heater conforms to a rear surface of a satellite dish and the magnets selectively and detachably secure the satellite dish heater against the rear surface of the satellite dish. The heating system transfers heat to the rear surface of the satellite dish to reduce snow and ice accumulation.

Abstract: Exemplary embodiments of the present subject matter is directed towards a device used to reduce electromagnetic radiations comprising a electromagnetic resistance sheet including a first layer and a third layer positioned at front and rear portions of the electromagnetic resistance metallic sheet configured to convert received excess radio frequency radiations of electronic signals to electromagnetic field signals and ground the converted electromagnetic field; and cloud signals for avoiding the transmission of radiations into the human body and environment. The first layer and the third layer coated with plurality of chemical elements. The electromagnetic resistance sheet also includes a second layer positioned between the first layer and the third layer coated with plurality of metallic elements to provide anti corrosion of the electromagnetic resistance sheet in the transmission of radiations.

Abstract: An aperture coupled patch antenna element comprises a ground plate having an aperture passing through the ground plate from a first side to a second opposite side. The aperture comprises a slot having an elongate cross-section, the cross-section having substantially parallel sides extending along the length of the cross-section. The antenna element also comprises a first transmission line comprising a first elongate conductor disposed on the first side of the ground plate in a substantially parallel relationship with the first side of the ground plate, and a patch radiator disposed on the second side of the ground plate in a substantially parallel relationship with the second side of the ground plate, the first transmission line being arranged to cross the slot, and the patch radiator being arranged to overlie the slot. The thickness of the ground plate at the slot is greater than the width of the slot.

Abstract: An antenna apparatus for use in a wireless network and method of operating such an antenna apparatus are provided. The antenna apparatus has omnidirectional antenna elements and RF chains, where there are fewer RF chains than omnidirectional antenna elements. A subset of the omnidirectional antenna elements are coupled to the RF chains and sampling circuitry coupled to the RF chains samples the signals received by the subset of the omnidirectional antenna elements. This forms part of a signal detection process in which different subsets of the omnidirectional antenna elements are iteratively coupled to the RF chains. A signal sample spatial covariance matrix for the omnidirectional antenna elements is constructed from the signals sampled by the sampling circuitry at each iteration and a beamforming algorithm applied to the signal sample spatial covariance matrix parameterizes the signals received by the omnidirectional antenna elements.

Abstract: A heat dissipater with an antenna structure comprises a heat conductive portion capable of being contacted with a heat source of an electronic device for heat dissipation; and an antennal portion integrally formed to the heat conductive portion so as to form as an integral body; and the antenna portion comprises at least one sheet body. A conductive layer is coated on a surface of the sheet body; in that the conductive layer can be connected to a conductive wire for being lead to the portable electronic device for signal receiving and transmission. The heat conductive portion 10 has the function of heat dissipation and the antenna portion 20 has the function of wireless transmission which are made integrally with a compact space so that the space in an portable electronic device for receiving the heat conductive device is sufficient to receiving the whole structure.

Abstract: Multi-band radio frequency communication is performed using an integrated multi-band bandpass filter implemented based on ring resonators, such as concentric dielectric ring resonators. By constructing the multi-band bandpass filter using concentric ring configurations, the print circuit board (PCB) real estate requirement of multiple filters operating at multiple frequency bands is significantly reduced. Various configurations of the multi-band bandpass filter based on the concentric ring resonators provide flexibility in the layout design and manufacturing of multi-band radios for mobile devices, such as compact smartphones. These configurations of the concentric ring resonators can include but are not limited: a slot-coupling configuration, a direct-coupling configuration, and an embedded direct-coupling configuration.

Abstract: There is provided a satellite antenna including: a reflector which is directed in a direction toward a target satellite and receives a predetermined satellite signal; and a balance weight module which is mounted on a rear surface of the reflector, in which the balance weight module includes a guide movable balance weight, a guide which defines a movement route along which the guide movable balance weight is moved in a state in which the guide movable balance weight is coupled to the guide, and a fixing member which selectively couples the guide movable balance weight at one side of the guide. By using the satellite antenna according to the present invention, it is possible to easily and quickly perform an operation of adjusting weight balance of the reflector and to prevent a safety accident.

Abstract: A metallic shaping plate located in the interior housing of a wireless device is disclosed. The metallic shaping plate may influence a radiation pattern being generated by a horizontal antenna array. The result may be an increase in the gain of the array.