Abstract: Embodiments of negative pressure wound therapy systems and methods are disclosed. In some embodiments, an apparatus includes a housing enclosing a source of negative pressure and a controller configured to operate the source of negative pressure to provide negative pressure wound therapy to a wound. The housing can also include a communications controller configured to wirelessly transmit and receive data using a communications antenna positioned on an antenna board. The antenna board can be mounted to a communications board that include the communications controller. The antenna board can be electrically connected to the communications board via a single connector on the communications board. The antenna's ground plane can be positioned on the communications board.

Abstract: An antenna module and a mobile terminal are provided. The mobile terminal is provided with a housing. The antenna module includes a first antenna group, a second antenna group, a third antenna group and a fourth antenna group. The first antenna group includes a first antenna and a second antenna, where both the first antenna and the second antenna operate in a 4G frequency band. The second antenna group includes a third antenna and a fourth antenna, where both the third antenna and the fourth antenna operate in a 5G frequency band. The third antenna group includes a fifth antenna, and the fifth antenna operates in the 4G frequency band. The fourth antenna group includes a sixth antenna and a seventh antenna, where both the sixth antenna and the seventh antenna operate in the 5G frequency band. The third, fourth, sixth and seventh antenna form a 4*4MIMO antenna group.

Abstract: Various examples are provided for fragmented aperture antennas. In one example, a fragmented aperture antenna includes a two-dimensional lattice of conducting elements, where positioning of the conducting elements in adjacent rows are offset based upon a fixed skew angle. In another example, a fragmented aperture antenna includes a two-dimensional lattice comprising a combination of first and second geometric conducting elements, where a second geometric conducting element provides a connection between adjacent sides of diagonally adjacent first geometric conducting elements. In another example, a fragmented aperture antenna includes a two-dimensional lattice of conducting elements having a single common non-rectangular shape, where the conducting elements interleave in a digitated fashion. Diagonally adjacent conducting elements overlap along a portion of adjacent edges of the diagonally adjacent conducting elements.

Abstract: Various examples are provided for fragmented aperture antennas. In one example, a fragmented aperture antenna includes a two-dimensional lattice of conducting elements, where positioning of the conducting elements in adjacent rows are offset based upon a fixed skew angle. In another example, a fragmented aperture antenna includes a two-dimensional lattice comprising a combination of first and second geometric conducting elements, where a second geometric conducting element provides a connection between adjacent sides of diagonally adjacent first geometric conducting elements. In another example, a fragmented aperture antenna includes a two-dimensional lattice of conducting elements having a single common non-rectangular shape, where the conducting elements interleave in a digitated fashion. Diagonally adjacent conducting elements overlap along a portion of adjacent edges of the diagonally adjacent conducting elements.

Abstract: An antenna array, especially for use with a radio frequency identification reader, includes a ground plane and a pair of concentric, first and second, circular elements mounted at an elevation relative to the ground plane. First ports are arranged along the perimeter of the first element, and second ports are arranged along the perimeter of the second element. Each port conveys radio frequency signals in an operating band of frequencies. Each perimeter is substantially equal to an odd multiple of one-half of a guided wavelength at a center frequency of the respective operating band. Each adjacent pair of first ports, or adjacent pair of second ports, is successively spaced apart by a spacing constituting a whole multiple of one-half of the guided wavelength at the center frequency of the respective operating band. A polarized patch antenna may be positioned within the circular elements.

Abstract: Embodiments of the present disclosure provide a base station and a beam coverage method, which can improve a service capacity of a communications system. The base station includes: an antenna and at least two data transmission paths, where a data converter and a beamformer are disposed on each data transmission path; the antenna includes a beam aggregation structure and at least one antenna bay, the beam aggregation structure includes at least one antenna aperture, one beamformer is correspondingly connected to one antenna bay, one antenna bay uses at least one antenna aperture in the beam aggregation structure to receive and send a beam, and a multiplexer is further disposed on the at least two data transmission paths; and the multiplexer is configured to set a data transmission path of a to-be-transmitted signal or a radiation signal. The embodiments of the present disclosure are used for beam coverage.

Abstract: A linear antenna array comprises a hollow support mast having a longitudinal axis, and a plurality of antenna element bays located equidistantly along the support mast. Each of the antenna element bays comprises a stripline driving circuit board positioned orthogonal to the longitudinal axis of the support mast, and a set of radiating elements symmetrically positioned around the support mast and electrically connected to the driving circuit board. A suspended-line circuit extends through the support mast and is electrically connected to the driving circuit board in each of the antenna element bays to provide a driving feed signal to each of the radiating elements.

Abstract: Improved radio-transparent communication tower panel security devices that can be easily mounted to and strapped around the cover panels of communication towers, including flag-supporting cellular communication towers, so as to band and secure the cover panels thereto and prevent them from falling off in high winds and/or other adverse weather conditions, while preventing wear and tear of flags and their lanyards.

Abstract: To provide a semiconductor device in which wireless communication is performed between devices formed over different substrates and connection defects of wirings are reduced. A first device having a first antenna is provided over a first substrate, a second device having a second antenna which can communicate with the first antenna is provided over a second substrate, and the first substrate and the second substrate are bonded to each other to manufacture a semiconductor device. The first substrate and the second substrate are bonded to each other by bonding with a bonding layer interposed therebetween, anodic bonding, or surface activated bonding.

Abstract: A modular plug-in antenna array capable of low cost and automated manufacturing is disclosed. The antenna element is designed to work efficiently over a broadband with simplified assembly requirements and to be used in discrete or array applications. Plug-in antennas eliminate the need for external tools, and allow the antenna to be removed, for service, test, and ease of assembly. Many transceivers are assembled using printed circuit board techniques whereon electronic components are mounted using a pick and place process. The plug-in antenna connects directly onto the circuit board; with connectors that are compatible with a pick and place process and which are produced in mass quantities for the computer and telecommunications industry, thus yielding lower costs than traditional high performance RF coaxial connectors.

Abstract: To provide a semiconductor device in which wireless communication is performed between devices formed over different substrates and connection defects of wirings are reduced. A first device having a first antenna is provided over a first substrate, a second device having a second antenna which can communicate with the first antenna is provided over a second substrate, and the first substrate and the second substrate are bonded to each other to manufacture a semiconductor device. The first substrate and the second substrate are bonded to each other by bonding with a bonding layer interposed therebetween, anodic bonding, or surface activated bonding.

Abstract: GPS reception on helicopters and ground vehicles may be subject to varying near-ground interference. A compact antenna includes vertically spaced arrays of radiating elements. The first array provides a basic reception pattern. The second array provides a pattern having a distinctive low elevation angle phase reversal. By combining signals for these patterns an antenna pattern with a low angle onmidirectional elevation null characteristic is provided to suppress near-ground interference. Prior to combining, signals from the second array may be modified in amplitude or phase, or both, on a semi-permanent basis, or may be adaptively modified on an active basis, in order to adjust the null characteristic. Antennas and methods are described.

Abstract: An antenna element for use in an antenna assembly is provided. The antenna element includes a cylindrical tube. The antenna element also includes a plurality of fingers, each finger having a first end that is connected to the cylindrical tube and a second end that is free. Each finger protrudes inward from a wall of the cylindrical tube. The free end of each finger has an aperture configured to allow the finger to be soldered to a pipe disposed through a generally circular opening. An antenna assembly having at least one antenna element is also provided.

Abstract: The utilization of small antennas for mobile devices and for low frequency (long wavelength) applications is desired. Further, efficient use of transmission power is desirable, especially in mobile applications. For this purpose, a system is provided that includes one or more of: a multiple-resonator transmitter/receiver, a high bandwidth electrically small antenna, a resonator with a variable feed location, a resonator with a variable reactive component load, and a method for estimating a resonator system response to a component configuration and selected excitation.

Abstract: An object is to provide a semiconductor device having an antenna structure which is advantageous for miniaturization, without changing the number of steps and communication distance. One feature to achieve the above object is a semiconductor device including a substrate, a tag portion including a thin film element formed over the substrate, a first antenna, and a second antenna, in which the first antenna and the second antenna are formed in different layers separated by an insulating film, the first antenna and the second antenna are partially electrically connected to each other, the first antenna is formed of a same material and in a same layer as a source or drain wiring connected to the thin film element, and the second antenna is formed in a different layer from the source or drain wiring connected to the thin film element.

Abstract: Vertical array antenna systems can provide broadband data link operation with reduction of susceptibility to low angle multipath effects, for communication during carrier landings by aircraft and other applications. In a relatively small package, an antenna system may include a stack of sub-arrays, each including four dipoles provided as configurations of downward and upward extending dipole arm members which are vertically separated by an annular slot excited by vertical probes. Excitation of the dipoles may be provided via excitation of the annular slot by the probes. Intercoupling-reduction disk units may be positioned between vertically adjacent sub-arrays. Pattern cutoff characteristics suitable for aircraft carrier landing operations (e.g., for reliable DGPS communications) at or near the horizon may be provided by excitation of individual sub-arrays at predetermined relative levels and with pattern phase reversal between lower and upper sub-arrays.

Abstract: Antennae in which the corresponding radiative element contains at least one multilevel structure formed by a set of similar geometric elements (polygons or polyhedrons) electromagnetically coupled and grouped such that in the structure of the antenna can be identified each of the basic component elements. The design is such that it provides two important advantages: the antenna may operate simultaneously in several frequencies, and/or its size can be substantially reduced. Thus, a multiband radioelectric behavior is achieved, that is, a similar behavior for different frequency bands.

Abstract: An antenna structure includes an omnidirectional broadband planar dipole antenna including a first electrically conductive disc defining a first dipole antenna element, and a second electrically conductive disc defining a second dipole antenna element in parallel with and spaced apart from the first dipole antenna element. A dual-line antenna feed structure may be connected to the planar dipole antenna and includes a first conductor electrically connected to the first conductive disc adjacent a peripheral edge thereof, and a second conductor electrically connected to the second conductive disc adjacent a peripheral edge thereof. The planar antenna may provide vertical polarization transmission and reception, and it may not require a ground plane. The antenna may use printed circuit construction like microstrip patch antennas. Operation may provide a single band antenna of broad bandwidth, a multiple band antenna, or any combination thereof.

Abstract: A planar inverted-F antenna includes a body (300), a feed wire (400), a shorting strip (500), and a metallic ground plane (200). The body is used for radiating and receiving radio frequency signals, and includes a radiating end (310) and a shorting end (320). The shorting end is electrically connected to a metallic ground plane by the shorting strip. The feed wire is electrically connected to the body. The body includes bent portions (330, 340) disposed between the shorting end and the radiating end. Due to the bent portions, the planar inverted-F antenna has a compact profile and a smaller size. In addition, the bent portions generate an inductance effect that can regulate the input impedance of the planar inverted-F antenna.

Abstract: Antennae in which the corresponding radiative element contains at least one multilevel structure formed by a set of similar geometric elements (polygons or polyhedrons) electromagnetically coupled and grouped such that in the structure of the antenna can be identified each of the basic component elements. The design is such that it provides two important advantages: the antenna may operate simultaneously in several frequencies, and/or its size can be substantially reduced. Thus, a multiband radioelectric behavior is achieved, that is, a similar behavior for different frequency bands.

Abstract: Antennae in which the corresponding radiative element contains at least one multilevel structure formed by a set of similar geometric elements (polygons or polyhedrons) electromagnetically coupled and grouped such that in the structure of the antenna can be identified each of the basic component elements. The design is such that it provides two important advantages: the antenna may operate simultaneously in several frequencies, and/or its size can be substantially reduced. Thus, a multiband radioelectric behaviour is achieved, that is, a similar behavior for different frequency bands.

Abstract: Antennae in which the corresponding radiative element contains at least one multilevel structure formed by a set of similar geometric elements (polygons or polyhedrons) electromagnetically coupled and grouped such that in the structure of the antenna can be identified each of the basic component elements. The design is such that it provides two important advantages: the antenna may operate simultaneously in several frequencies, and/or its size can be substantially reduced. Thus, a multiband radioelectric behaviour is achieved, that is, a similar behavior for different frequency bands.

Abstract: Dual-array two-port GPS antenna systems can provide horizon to zenith reception for differential GPS applications. On a single mast, an antenna system may include a lower array of sub-arrays (e.g., fifteen sub-arrays) to provide elevation coverage from horizon up to about 55 degrees elevation and an upper array of sub-arrays (e.g., three sub-arrays) to provide elevation angle coverage from zenith down to about 55 degrees elevation. Each sub-array may be of the same construction including four dipoles positioned at different azimuth locations and configured to provide a progressive-phase-omnidirectional (PPO) azimuth pattern suitable for reception of circularly polarized signals. In a particular embodiment the three sub-arrays of the upper array have PPO azimuth patterns with differing azimuth alignments and differing excitation values to provide a desired elevation angle coverage characteristic.

Abstract: Antennae in which the corresponding radiative element contains at least one multilevel structure formed by a set of similar geometric elements (polygons or polyhedrons) electromagnetically coupled and grouped such that in the structure of the antenna can be identified each of the basic component elements. The design is such that it provides two important advantages: the antenna may operate simultaneously in several frequencies, and/or its size can be substantially reduced. Thus, a multiband radioelectric behaviour is achieved, that is, a similar behavior for different frequency bands.

Abstract: An antenna comprises a resonator and a waveguide. The resonator comprises at least one body having a negative effective electrical permittivity or a negative magnetic permeability when a resonance is excited therein by electromagnetic radiation lying in some portion of the microwave spectrum. A termination of the waveguide is situated adjacent the resonator. The resonator is conformed such that at the resonance, there is efficient coupling between the resonator and the waveguide.

Abstract: A parallel fed colinear dipole array antenna for broadcasting and receiving a signal of a selected wavelength. The antenna comprises a plurality of elongate dipole antennas attached end-to-end in a linear array. A power divider divides and transmits a signal in parallel to each of the dipole antennas. The linear spacing of the dipoles is correlated with the dimensions of the dipoles and the selected wavelength, such that the signals of the dipole antennas interfere with each other when broadcast, so as to focus signals which propagate substantially perpendicularly to the linear array, and to diminish other signals.

Abstract: An elongated antenna, especially an omnidirectional antenna, has a vertical, elongated rod-like structure with two metal profile elements (10, 20) provided with dipole elements (2) as integral parts thereof. The rod-like structure (1) is surrounded by a tube (3). The antenna elements (2) are coupled in parallel to a single transmission coaxial cable (8). The antenna has a high gain and low losses.

Abstract: An antenna system is presented herein for radiating RF energy. This system includes a vertical mast having N vertically oriented faces which surround a vertically extending mast and wherein N is equal to at least 3. A plurality of vertically spaced antenna bays is provided with each bay having an array of N antennas carried by the mast. Each antenna includes radiating means located substantially in a plane parallel to one of the N faces. Each face is oriented at a given angle ##EQU1## from an adjacent face. The mast has N corners, each corner being located intermediate a pair of faces. N fins are provided with each fin being associated with one of the corners and extending radially outward of the axis beyond the associated corner.

Abstract: An improved antenna configuration that is both structurally symmetric and maximizes diversity gain through spatial displacement of antenna pairs. Individual antenna of each antenna pair is placed in adjacent and spaced-apart antenna assemblies where each antenna of an antenna pair is both horizontally and vertically displaced from its twin.

Abstract: An antenna system with both spatial and polarization diversity having a first antenna aperture and a second antenna aperture, a polarization separation angle formed by the difference between the polarization angle of the first antenna aperture and the polarization angle of the second antenna aperture, and a vertical separation formed by mounting the second antenna aperture a vertical distance above the first antenna aperture, such that diversity gain is achieved by both the polarization angle and the vertical distance. The combination of spatial and polarization diversity allows closer antenna aperture spacing and non-orthogonal polarization angles.

Abstract: An antenna system is presented having a feed for feeding an antenna and apparatus for supporting the feed. The system includes a vertically oriented, electrically conductive hollow mast which carries first and second groups of vertically spaced bays of radiating elements. Each bay includes an arrangement of N radiating elements extending outward from the mast. N vertically oriented electrically conductive, hollow feed support members are spaced away from the mast. Each support member carries an elongated feed conductor extending vertically within the support member. The support members extend vertically upward coextensively with that of the mast to approximately midway between said first and second groups of bays. N hollow electrically conductive, coupling arms are provided and each arm extends between the mast and one of the N support members. Each arm carries first and second conductors each connected at one end to a feed conductor.

Abstract: The disclosed antenna is designed notably for the emission of television and radio broadcast signals in the decimetrical wavebands. It comprises:a vertical, central supporting tube,a plurality of identical radiating networks evenly distributed around the central tube, each consisting of a vertical bifilary line symmetrically supplying, supporting and coupling a plurality of horizontal dipoles evenly distributed along this bifilary line, and,a system for the distribution of equiphase, equal power, identically and simultaneously supplying the radiating networks through a single coaxial supply line. The antenna has a reflector thus substantially reducing its weight and its windward surface as compared with standard antennas with panels generally used in this band. Advantageously, these antennas are superimposed and enclosed in a sealed radome which is substantially cylindrical and self-supporting and superimposable. This antenna gives an omnidirectional diagram with 0.

Abstract: A circularly polarized (CP) antenna comprised of at least one antenna bay. Each bay includes three individual CP antennas which are equally spaced circumferentially about a mast. Each individual CP antenna is comprised of a pair of crossed dipoles having drooping arms. The angle at which the arms droop is selected to provide good axial ratio at all positions in the vertical and horizontal patterns. Three reflectors extend radially from the mast and are arranged at circumferential positions intermediate the individual CP antennas. In one embodiment, six antenna bays of this type are provided at axially spaced positions along a single, common mast. An arrangement for feeding this multi-bay antenna is also disclosed.

Abstract: A circularly polarized antenna has bays stacked at spacings of less than one wavelength in order to have a broadband SWR characteristic and to minimize radiation along a supporting mast axis. Vertical stubs are used to increase the circularity of the horizontal pattern and to improve the axial ratio.

Abstract: An omnidirectional receiving antenna primarily intended for TV signals and constituted of substantially circular antenna elements, tuned for different TV frequency ranges, connected to an amplifier and cast into a common casing, each antenna element comprising a double dipole antenna, one part of which is of circular shape and made of a metal plate or metal net cut open diametrically from one edge nearly to the opposite edge so as to form a slightly widening slot, and the other part being a metal band or similar extending substantially along the edges of the circular plate or net and at a certain distance therefrom, the ends of the band turning symmetrically inwards at the unbroken edge left by the cut and extending along the edges of the slot and being finally connected to the cut-open edge of the circular part on each side of the slot.

Abstract: An omnidirectional, broad-band antenna for installation on a vertical mast. The antenna is formed of one or more superposed arrays of elementary antennas in the form of log-periodic alignments of vertical dipoles. Particularly for use in ground stations for ground-air communications.