Abstract: An antenna component is provided. An orthographic projection of auxiliary antennas on a clearance area is entirely located in, partly located in, or close to a radiation-sensitive area where a specific absorption ratio (SAR) value of a frequency band needs to be reduced, so that a signal emitted from the radiation-sensitive area where the SAR value of the frequency band needs to be reduced on a primary antenna may be absorbed by the auxiliary antennas, and the auxiliary antennas generate secondary radiation.

Abstract: Provided herein are various magnetoelectric dipole antenna arrays and multi-array arrangements for handling radio frequency signals. In one example, an antenna array includes a baseplate conductively coupled to sets of plate elements by support members that position the plate elements at selected distances offset from a surface of the baseplate. Antenna probes are arranged in orthogonal pairs positioned within gaps between a corresponding set of plate elements, with each antenna probe comprising a conductive strip having a feed section coupled to a radio frequency connection through the baseplate, a transverse section generally parallel with the baseplate, and a terminal section directed back toward the baseplate. Dielectric structures for each pair of antenna probes comprise a dielectric material having channels that recess the conductive strips therein and a dielectric spacer positioned between overlapping transverse sections of the antenna probes.

Abstract: This application provides an antenna and an array antenna. The antenna in this application includes a first radiating element and a second radiating element, where four dipoles enclose to form the first radiating element, and the second radiating element is a radiating element disposed on an inner side of the first radiating element. The first radiating element is configured to support a transmit frequency band, and the second radiating element is configured to support a receive frequency band; or the first radiating element is configured to support a receive frequency band, and the second radiating element is configured to support a transmit frequency band.

Abstract: The present disclosure provides a 5th generation (5G) broadband dual-polarized base station antenna of a multimode resonance structure, including: a first resonance structure, a main radiating unit, a feed balun set, and a metal reflecting plate, where the feed balun set is disposed on the metal reflecting plate, the main radiating unit is disposed on a first feed balun and a second feed balun, and the first resonance structure is disposed on the main radiating unit; the main radiating unit includes a second resonance structure and a third resonance structure, the first resonance structure is configured to control a resonance point at a high frequency, and the third resonance structure is configured to control a resonance point at a low frequency; and the feed balun set is configured to provide a balance current for the main radiating unit and the first resonance structure.

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: Provided is an electronic device having an antenna module according to one embodiment. The electronic device comprises: a transceiver circuit disposed in the antenna module composed of a multi-layer substrate; a first transmission line disposed on the first layer of the antenna module and configured to be electrically connected to the transceiver circuit; a second transmission line disposed on the second layer of the antenna module and configured to be electrically connected to the antenna; and a vertical via configured to vertically connect the first transmission line and the second transmission line, wherein at least one of the first and second transmission lines connected to the vertical via has an impedance converter.

Abstract: A radio frequency (RF) aperture includes an interface board. An array of electrically conductive tapered projections have bases disposed on a front side of the interface printed circuit board and extend away from the front side of the interface printed circuit board. RF circuitry is disposed at the back side of the interface board and is electrically connected with the electrically conductive tapered projections.

Abstract: An antenna system includes a first substrate, a plurality of chips, a system board having an upper and lower surface, and a beam forming phased array that includes a plurality of radiating waveguide antenna cells for millimeter wave communication. Each radiating waveguide antenna cell includes a plurality of pins where a first pin is connected with a body of a corresponding radiating waveguide antenna cell and the body corresponds to ground for the pins. A first end of the radiating waveguide antenna cells is mounted on the first substrate, where the upper surface of the system board comprises a plurality of electrically conductive connection points to connect the first end of the plurality of radiating waveguide antenna cells to the ground.

Abstract: A base station antenna includes a radome and an antenna assembly that is mounted within the radome. The antenna assembly includes a backplane that includes a first reflector, a first array that includes a plurality of first radiating elements mounted to extend forwardly from the first reflector, a second reflector mounted to extend forwardly from the first reflector and a second array that includes a plurality of second radiating elements mounted to extend forwardly from the second reflector. The first radiating elements extend a first distance forwardly from the first reflector and the second radiating elements extend a second distance forwardly from the second reflector, where the first distance exceeds the second distance.

Abstract: The application discloses a wideband dual-polarized antenna, including a reflective plate and a radiating element mounted on the reflective plate. The radiating element includes four dipoles which are combined together to be arranged on the reflective plate; two arms of each dipole are respectively connected to top ends of two conductor, and bottom ends of the conductor are connected to a common base and are placed on the reflective plate; a focusing member with a conical structure is mounted above the radiating element, and includes conductive members and dielectric members. The conductive members are arranged on the dielectric members in an axisymmetrical manner, are supported by the dielectric members and are arranged above the dipoles. The beamwidth is adjusted by arranging the focusing member with the conical structure above the radiating element so that the wideband dual-polarized antenna has the beamwidth reaching the desired range, has lower cross polarization ratio.

Abstract: Systems and methods for providing a broadband antenna are provided. The antenna can include a current sheet array having a plurality of elements. Each of the elements includes dipole arms. The dipole arms can be configured as first and second dipole arm pairs for transmitting or receiving signals of different polarizations. Capacitive structures are provided between adjacent branch portions of the dipole arms. The capacitive structures extend from a first side of a substrate on which the dipole arms are located towards a second side of the substrate.

Abstract: An active phased array, including multiple antennas, multiple phase shifters, and multiple filters, is provided. The phase shifters are individually coupled to a corresponding one of the antennas. The filters are commonly coupled to a signal feeding line and individually coupled to a corresponding one of the phase shifters. Each filter includes a filter capacitor and a filter resistor. The filter capacitor is coupled between a first node and a second node and has a capacitance. The filter resistor is coupled between the second node and a third node and has a resistance. The first node is coupled to one of the signal feeding line, the second node is coupled to a corresponding one of the phase shifters, the third node is coupled to the ground, and at least one of the capacitance and the resistance is adjustable.

Abstract: A low-profile, ultra-wideband, conformal antenna is actively driven by a four-port quadrature feed circuit for both cardioid and monopole radiation patterns. The quadrature four-port and differential two-port driven radiating elements are organized into a log periodic array that is driven without frequency dispersion. The log periodic array may produce circularly polarized beams. For radiating elements that do not operate via a ground plane, stepped artificial magnetic conductors isolate the drive circuitry.

Abstract: An antenna system includes a first substrate, a plurality of chips, a system board having an upper and lower surface, and a beam forming phased array that includes a plurality of radiating waveguide antenna cells for millimeter wave communication. Each radiating waveguide antenna cell includes a plurality of pins where a first pin is connected with a body of a corresponding radiating waveguide antenna cell and the body corresponds to ground for the pins. A first end of the radiating waveguide antenna cells is mounted on the first substrate, where the upper surface of the system board comprises a plurality of electrically conductive connection points to connect the first end of the plurality of radiating waveguide antenna cells to the ground.

Abstract: A reflector structure is configured to connect an antenna. The antenna has an excitation source. The reflector structure includes a metal substrate, at least one first flat plate and a second flat plate. The metal substrate is configured to reflect the radiation of the antenna. The at least one first flat plate is disposed on the metal substrate. The second flat plate is floated to the metal substrate along a virtual normal and completely separated from the at least one first flat plate to form a closed slot. A cavity is formed by the metal substrate, the at least one first flat plate and the second flat plate and communicated with the closed slot. The excitation source is projected onto a plane to form an excitation source region. The excitation source region is located in the second flat plate.

Abstract: A transmission structure with a dual-frequency antenna is provided. The transmission structure includes a substrate, a first radiator and a second radiator. The first radiator has a first electrical connection portion. The first radiator extends from the first electrical connection portion in a first direction and a second direction, wherein the first direction is opposite to the second direction. The second radiator has a second electrical connection portion adjacent to the first electrical connection portion. The second electrical connection portion has a first side and a second side, wherein the first side is closer to the first electrical connection portion than the second side, the second electrical connection portion forms a ground area between the first side and the second side, and the length of the ground area is greater than a first set value.

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 array with control circuitry placed at a front of the antenna array and between the antenna elements. By locating the azimuth beamforming network control circuitry on the front of the array and between antenna elements, the antenna elements and the other components can be coupled to the control circuitry without using cables. This leads to a reduction in the number of cable connections and to a reduction in size and weight of the resulting antenna array. The ABFN control circuitry is also used to control the beams formed from each row and not from each column as is usually done.

Abstract: A radar device includes a transmission antenna and a reception antenna that is a structure different from the transmission antenna. The transmission antenna includes a single or a plurality of transmission element antennae and a transmission dielectric substrate where the single or the plurality of transmission element antennae is positioned, and a length in a first direction of the transmission antenna is longer than a length in a second direction of the transmission antenna, and the second direction is orthogonal to the first direction. The reception antenna includes a single or a plurality of reception element antennae and a reception dielectric substrate where the single or the plurality of reception element antennae is positioned, a length in a third direction of the reception antenna is longer than a length in a fourth direction of the reception antenna, and the fourth direction is orthogonal to the third direction.

Abstract: A radio frequency (RF) aperture includes an interface board. An array of electrically conductive tapered projections have bases disposed on a front side of the interface printed circuit board and extend away from the front side of the interface printed circuit board. RF circuitry is disposed at the back side of the interface board and is electrically connected with the electrically conductive tapered projections.

Abstract: A dipole antenna includes a reflector, a radiating element, and a feed element. The radiating element includes first and second dipoles above a surface of the reflector. The first and second dipoles respectively include arm segments and are arranged in a crossed dipole arrangement. The feed element includes first and second conductive transmission lines that are electrically isolated from one another and are capacitively coupled to the arm segments of the first and second dipoles, respectively. The arm segments of the first and second dipoles are between the feed element and the surface of the reflector.

Abstract: Disclosed is an antenna that enables dense packing of low band, mid band, and C-band radiators. The low band radiators have a plurality of dipole arms that minimize re-radiation of either RF energy emitted by either the mid band or C-Band radiators. In one embodiment, the dipole arms are formed of a two-dimensional structure that has a shape that substantially prevents re-radiation in both the mid band and the C-band. In another embodiment, the dipole arms have two different configurations: a first configuration optimized for preventing re-radiation in the mid band, and a second configuration optimized for preventing re-radiation in the C-Band. In the latter embodiment, the low band radiators in close proximity to the mid band radiators have dipole arms of the first configuration, and the low band radiators in close proximity to the C-Band radiators have dipole arms of the second configuration.

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: The disclosed structures and methods are directed to antenna systems configured to transmit and receive a wireless signal in and from different directions. A switchable lens antenna has excitation ports radiating radio-frequency (RF) wave into a parallel-plate waveguide structure, and a frequency selective structure (FSS). The antenna presented herein is configured to operate in two modes depending on an initial steering angle of the RF wave propagating in the parallel-plate waveguide structure. When the initial steering angle is about or less than a threshold steering angle, FSS is OFF due to its stubs being electrically disconnected from the parallel-plate waveguide structure. When the initial steering angle is higher than the threshold, FSS is ON with stubs being electrically connected to the parallel-plate waveguide structure. When ON, FSS provides phase variance to the RF wave propagating in the parallel-plate waveguide structure and increases steering angle of the RF wave.

Abstract: An antenna with pin header is provided, which may include a substrate, a feed point, a radiator and a metallic pin header. The feed point may be disposed on the substrate. The radiator may be printed on the substrate and connected to the feed point. The metallic pin header may penetrate through the radiator and the substrate. The metallic pin header may be connected to the feed point via the radiator, and the radiator and the metallic pin header may have a common feedline, whereby the metallic pin header can enhance the gain pattern, in the direction which the metallic pin header points in, of the radiator.

Abstract: A half-rhombic antenna includes an addressable switch at the apex. The addressable switch is opened or closed base on the operating frequency of the antenna. The addressable switch is open when operating at odd multiples of the lowest frequency and closed when operating at even multiples of the lowest frequency. The feedpoint includes a tuning element to adjust impedance within a range defined by the operating range of the switched antenna.

Abstract: The present disclosure relates to a base station antenna. The base station antenna comprises: a reflector and radome supports mounted on the reflector, wherein the reflector comprises a body portion and a bent portion, the bent portion including at least a first section that is connected to and bent relative to the body portion of the reflector, wherein one or more arrays of radiating elements are mounted on or above the body portion of the reflector, wherein the radome support includes a support portion for supporting the radome and a mating portion for mating with the reflector, wherein a first support limiting portion is provided on the mating portion of the radome support, a first reflector limiting portion mating with the first support limiting portion is provided on the body portion of the reflector, and the first support limiting portion mates with the first reflector limiting portion to limit at least the position of the radome support in a width direction H.

Abstract: The disclosure discloses a liquid crystal antenna, including a first substrate and a second substrate which are oppositely arranged and a liquid crystal layer positioned between the first substrate and the second substrate, wherein a first metal film layer is arranged on one side, facing the second substrate, of the first substrate, a second metal film layer is arranged on one side, facing the first substrate, of the second substrate, the first substrate and the second substrate are rigid substrates, a seed layer is arranged between the first substrate and the first metal film layer, and a seed layer is arranged between the second substrate and the second metal film layer. The disclosure also provides a method for manufacturing a liquid crystal antenna.

Abstract: A compact antenna device has a ground plane at floating potential and at least one dipole antenna extending through the ground plane. The at least one dipole antenna has first and second strands extending on either side of the ground plane. A control circuit is arranged on the ground plane in order to control the at least one dipole antenna.

Abstract: The present disclosure provides an antenna system including a non-metallic housing. The non-metallic housing includes a top edge portion, a bottom edge portion provided correspondingly to the top edge portion, and a first long side edge portion and a second long side edge portion that connect the top edge portion with the bottom edge portion. The antenna system further includes seven antenna units provided on a periphery of the non-metallic housing. Compared with the related art, the antenna system provided by the present disclosure, by providing seven antenna units on the periphery of the non-metallic housing, achieves 3.3-3.6 GHz-4×4 MIMO, WIFI-2×2 MIMO, GPS, and 2G, 3G and 4G mobile communications.

Abstract: An antenna system is configured to transceive a wireless signal. The antenna system includes a first dipole antenna and a second dipole antenna. The first dipole antenna includes a first radiator, a second radiator, and a first feeding point. The second dipole antenna includes a third radiator, a fourth radiator, and a second feeding point. The first radiator and the third radiator have a notch facing towards a first direction. The second radiator and the fourth radiator have a notch facing towards a second direction inverse to the first direction. The first feeding point, disposed between the first radiator and the second radiator, is located on one side of the first dipole antenna adjacent to the second dipole antenna. The second feeding point, disposed between the third radiator and the fourth radiator, is located on one side of the second dipole antenna adjacent to the first dipole antenna.

Abstract: Methods and systems for producing magnetic walls for use in a switchable or activated non-reciprocal antenna array are presently disclosed. The non-reciprocal antenna array includes a plurality of omni-directional antennas linearly aligned with a phase center of each omni-directional antenna antennas on a line. Each antenna of the plurality of omni-directional antennas has an antenna rotation respective to the line. The array also includes an antenna spacing between the antennas equaling 360 degrees divided by a quantity of antennas in a full operational wavelength. Additionally, the array includes a set of antenna feeds corresponding to one feed for each antenna. The set of antenna feeds is configured to selectively enable or disable the plurality of antennas. When the plurality of omni-directional antennas are enabled, the array has a composite radiation pattern in having a maximum in one direction perpendicular to the line and a minimum in an opposite direction.

Abstract: A method of assembling an antenna aperture from a plurality of antenna aperture segments is described. The method may include placing a first aperture segment relative to a second aperture segment to partially form the antenna aperture. Furthermore, an overlap of the first aperture segment overlaps a complementary underlap of the second aperture segment at a seam. The method may also include joining the overlap of the first aperture segment to the underlap of the second aperture segment to partially form the antenna aperture.

Abstract: Aspects of the disclosure include commanding an antenna to a first orientation relative to a structure that the antenna is mounted to, obtaining at least one measurement from at least one sensor, wherein the at least one measurement represents a first magnitude and a first direction of a displacement of the antenna relative to the first orientation, determining that the displacement of the antenna relative to the first orientation exceeds a threshold in terms of the first magnitude, the first direction, or a combination thereof, responsive to the determining that the displacement of the antenna relative to the first orientation exceeds the threshold, identifying at least one piezoelectric device to engage to cause the antenna to assume a second orientation relative to the structure, and responsive to the identifying, commanding the at least one piezoelectric device to engage to cause the antenna to assume the second orientation.

Abstract: An antenna element and an electronic device including the antenna element are provided. The antenna element includes a combiner, a first antenna, a second antenna, a feed, a first connection circuit, a second connection circuit, a first ground circuit, and a second ground circuit. The combiner has a first input terminal electrically connected to the first antenna via the first connection circuit, a second input terminal electrically connected to the second antenna via the second connection circuit, and an output terminal electrically connected to the feed. One end of the first ground circuit is electrically connected to the first antenna. One end of the second ground circuit is electrically connected to the second antenna.

Abstract: A radiation system includes a low-frequency radiator having a bowl-shaped structure, a high-frequency radiator arranged inside the bowl-shaped structure of the low-frequency radiator, and a metamaterial reflector arranged below the high-frequency radiator. The metamaterial reflector includes a metasurface arranged below the high-frequency radiator and a solid metal plane arranged below the metasurface.

Abstract: A module for a communications cell site includes: a mounting frame; a remote radio unit (RRU) mounted to the frame; a radio frequency (RF) signal conditioning unit mounted to the frame; and a cover mounted to the frame that covers the RRU and the RF signal conditioning unit.

Abstract: The present disclosure relates to antenna design for Installation on small cell base stations. The antenna design corresponds to a conformal antenna design that fits into a traditional sun-shield of an outdoor base station. In another aspect, the antenna design supports multiple hands and multiple technologies. In a further aspect the antenna design provides a gain pattern that allows installation of the small cells into directional sectors to further enhance the spectral efficiency while providing a single installation location. In still a further aspect, the design permits the form factor of the base station to meet unique and desirable aesthetic principals such as a modem curved surface and an attractive and distinctive height, width and depth ratio.

Abstract: The present invention relates to a multiband antenna comprising: a reflector providing a ground plane; a first radiation module for a first frequency band, provided on the reflector; and a plurality of second radiation modules for a second frequency band, laminated on the first radiation module, wherein: the first radiation module includes first to fourth radiation elements symmetrically combined in four directions on an entire plane, wherein each of the first to fourth radiation elements includes a radiation arm in a cup shape and a support for supporting and fixing the radiation arm to the reflector, and the second radiation modules are provided to each radiation arm of the first to fourth radiation elements, wherein the lower surface of the cup shape of each radiation arm of the first to fourth radiation elements is designed to have a predetermined area for providing the ground plane to the second radiation modules.

Abstract: In the present invention, a radio communication antenna having a narrow beam width comprises: a reflecting plate provided in the form of a plate of rectangular shape; and one radiating module disposed on the reflecting plate and generating x-polarized waves. Here: the radiating module comprises four radiating elements of dipole structure; the four radiating elements are respectively disposed at four edge portions of the reflecting plate, and each comprises two radiating arms placed in the direction extending along both sides relative to the edges; and, among the four radiating elements, those radiating elements that face each other diagonally are linked in movement so as to generate one of the x-polarized waves.

Abstract: An apparatus for tuning a plurality of antennas is provided. The apparatus includes a plurality of antenna ports connected to the plurality of antennas; a plurality of user ports; first adjustable impedance elements, each being connected to one of the antenna ports and ground; second adjustable impedance elements, each being connected to one of the user ports and another one of the user ports; and a plurality of connecting elements, each being connected to one of the antenna ports and one of the user ports, wherein the first and second adjustable impedance elements are configured to be adjustable so to tune the plurality of antennas.

Abstract: The present invention relates to a multi-band, multi-polarized wireless communication antenna, which comprises: a reflector; at least one first radiation module of a first band which is installed on the reflector; and at least one second or third radiation module of a second band or a third band installed on the reflector, wherein the first radiation module comprises first to fourth radiating elements having a dipole structure, the first to fourth radiating elements are configured such that every two radiating arms thereof are connected in the shape of letter “¬”, one of the two radiating arms is configured to be placed side by side along side of the reflector, and the second or third radiation module is installed to be included within an installation range of the first radiation module.

Abstract: The present disclosure relates to an antenna for a wireless communication system. The antenna comprises a reflector having a front side for transmitting a signal and a back side opposite to the front side; an antenna oscillator disposed on the front side of the reflector; a phase shifter network disposed on the back side of the reflector; and an antenna oscillator fixing apparatus disposed on the front side of the reflector and configured to fix the antenna oscillator to the front side of the reflector. In addition, the present disclosure also relates to a method for fixing an antenna oscillator to a reflector. With the antenna and the fixing method according to the present disclosure, it is possible to manufacture an antenna with an antenna oscillator that is easy to dismantle without damaging an existing phase shifter network, which will improve maintainability of the antenna according to the present disclosure dramatically and also reduce the cost of maintenance and repairs.

Abstract: A method and apparatus are disclosed for improving RFID coverage using an antenna array having an adaptive antenna beam. The apparatus includes an RFID reader including an antenna array having a plurality of antenna elements. Subsets of the plurality of antenna elements are selectively activating in order to direct an antenna beam to communicate with at least one RFID tag. The method includes transmitting an interrogation signal from an antenna array by activating one or more subsets of a plurality of antenna elements forming the antenna array. In this way, the interrogation signal is directed thereby improving antenna coverage.

Abstract: A file searching system includes a file storage device and a terminal device. The file storage device defines a plurality of slots for storing files having radio frequency identification (RFID) tags, the file storage device has a plurality of antennas and associated indicators mounted to a corresponding slot one to one. The terminal device wirelessly communicates with a first transceiver of the file storage device. The terminal device includes a user interface (UI) unit. Each antenna receives RFID tag self-identifying information from an RFID tag stored in the corresponding slot and transmit the RFID tag self-identifying information along with antenna self-identifying information to the first transceiver for transmission to the terminal. The first transceiver receives control commands from the terminal and the file storage device actuates one of the plurality of indicators based on a received control command. A file searching method of the file searching device is also provided.

Abstract: A coupling-type antenna includes a substrate having opposing top surface and bottom surface, a monopole antenna element formed on the top surface of the substrate for transmitting a first current and having a feed point and a radiator and a conductor respectively extended from the feed point, and a coupling body formed on the bottom surface of the substrate opposite to the monopole antenna element for transmitting a second current. Further, the transmitting direction of the first current in the monopole antenna element is opposite to the transmitting direction of the second current in the coupling grating body.

Abstract: An antenna structure is disclosed. The antenna structure includes a symmetrizing portion and two radiation portions. The symmetrizing portion has an axis and two radiation portions are symmetrically connected to the symmetrizing portion along the axis. Each of the two radiation portions is formed in a boot shape within a quadrilateral region having a first edge with a first length, a second edge with a second length, a third edge with a third length and a fourth edge with a fourth length. Each radiation portion includes a first side having a length being equivalent to the first length, a second side having a length being equivalent to the second length, a third side having a length being at least one-sixth of the third length, a fourth side having a length being at least one-fifth of the fourth length, and a fifth side connecting the third side and the fourth side and forming an arc, wherein the arc follows a quarter trajectory of an ellipse.

Abstract: Ultra-wideband dual-band cellular dual-polarization base-station antennas and low-band radiators for such antennas are disclosed. The low-band radiator comprises a dipole and an extended dipole con figured in a crossed arrangement, a capacitively coupled feed connecting the extended dipole to an antenna feed, and a pair of auxiliary radiating elements. The dipole comprises two dipole arms, each of approximately ?/4, for connection to the antenna feed. The extended dipole has anti-resonant dipole arms of approximately ?/2. The auxiliary radiating elements are configured in parallel at opposite ends of the extended dipole. The radiator is adapted for the frequency range of 698-960 MHz and provides a horizontal beamwidth of approximately 65 degrees. The dual-band base-station antenna comprises high-band radiators configured in at least one array and low-band radiators interspersed amongst the high-band radiators at regular intervals.

Abstract: Antenna array arrangement for a multi band antenna, comprising a plurality of first dual band antenna elements adapted for transmitting/receiving in a lower antenna frequency band and in a higher antenna frequency band, a plurality of first single band antenna elements adapted for transmitting/receiving in the higher antenna frequency band, the first dual band antenna elements and the first single band antenna elements being arranged in a row, wherein at least two first single band antenna elements are arranged adjacent to each other. Furthermore, the invention also relates to a multi band antenna comprising at least one such antenna array arrangement.

Abstract: A portable unit with an endfire antenna and operating at 60 GHz makes an optimum communication channel with an endfire antenna in an array of antennas distributed over the area of a ceiling. The portable unit is pointed towards the ceiling and the system controlling the ceiling units selects and adjusts the positioning of an endfire antenna mounted on a 3-D adjustable rotatable unit. Several transceivers can be mounted together, offset from one another, to provide a wide coverage in both azimuth direction and elevation direction. These units can be rigidly mounted as an array in a ceiling apparatus. The system controlling the ceiling array selects one of the transceivers in one of the units to make the optimum communication channel to the portable unit. The system includes the integration of power management features by switching between Wi-Fi in favor of the 60 GHz channel.