Abstract: An RFID device includes an antenna structure that provides good performance throughout a range of different positions relative to nearby materials, such as metallic objects in a carton or other container. The antenna structure has compensation elements that interact with the nearby materials to provide good performance over the range of different positions. The compensation elements include both electrical compensation elements, which interact with the nearby materials primarily using electric fields, and magnetic compensation elements, which interact with the nearby materials primarily using magnetic fields. The electrical compensation elements and the magnetic compensation elements may be selected and may be positioned within the antenna structure such that the performance of the antenna structure is substantially unchanged (or at least acceptable) through the range of different positions.

Abstract: A horizontally polarized antenna array allows for the efficient distribution of RF energy into a communications environment through selectable antenna elements and redirectors that create a particular radiation pattern such as a substantially omnidirectional radiation pattern. In conjunction with a vertically polarized array, a particular high-gain wireless environment may be created such that one environment does not interfere with other nearby wireless environments and avoids interference created by those other environments. Lower gain patterns may also be created by using particular configurations of a horizontal and/or vertical antenna array. In a preferred embodiment, the antenna systems disclosed herein are utilized in a multiple-input, multiple-output (MIMO) wireless environment.

Abstract: An electronically scanned antenna working in a wide frequency band comprises at least: one reflector panel comprising an array of phase-shifters cells; one slotted waveguide illuminating the reflector panel by a microwave having a variable frequency f. The deviation ??f of the direction of the wave emitted by the slotted waveguide, as a function of the frequency variations, countering the variation ??p of the aiming direction of the wave reflected by the reflector panel. The disclosed antenna can be used especially in applications requiring compact or low-cost antennas.

Abstract: A coaxial cable A12 of a receiving antenna A1, a resin plate A13, and a connecting unit cover A15 are fused by thermal treatment, so that a gap between the outer coating of the coaxial cable A12 and the connecting unit cover A15, and a gap between the resin plate A13 and the connecting unit cover A15 are eliminated, whereby they are integrally configured. An antenna of the antenna unit, a coaxial cable, and a connecting unit cover are fused for coverage, and thereby it becomes possible to improve drip-proofness of the antenna unit by preventing water from entering from the gap between these materials when disinfectant is sprayed by misting, for example.

Abstract: A robot cleaner including: a main body; and an RF antenna installed at the main body with such a length appropriate for communication with a remote controller. Because the RF antenna is installed within the main body, the degradation of traveling performance and cleaning efficiency caused as the antenna contacts with an external obstacle can be prevented.

Abstract: An antenna apparatus for the reception of, and or transmission of, electromagnetic energy, the apparatus including a non-radiating dielectric waveguide aperture coupled to at least one dielectric rod antenna, which is electromagnetically coupled to a transmission line element.

Abstract: Disclosed is a flat-type antenna apparatus which has a radiating conductor and a reference conductor disposed opposite to each other and performs feeding between the radiating conductor and the reference conductor at a position offset from the center of the radiating conductor center. The antenna includes: an insulative material layer which has relative magnetic permeability greater than 1 and is placed in a gap between the radiating conductor and the reference conductor; and a short-circuiting conductor which is disposed at a position to suppress unintended excitation and enables electric conduction between the radiating conductor and the reference conductor.

Abstract: A ground plane apparatus (200 ) has a plurality of substantially planar ground plane surfaces (201 ) that are connected, arranged, and configured to substantially form a pyramid-shaped object. A plurality of radiating antennas (202 ) are then provided with at least one such antenna being mounted on each of the plurality of substantially planar ground plan surfaces such that a line of sight (205 ) between tips of adjacent radiating antennas is substantially occluded by at least one of the substantially planar ground plan surfaces. An electrically conductive raised surface (401 ) may be mounted along adjacent edges of the substantially planar ground plane surfaces. Such raised surfaces may further aid in more fully occluding the line of sight between adjacent radiating antennas. As another optional approach, additional shorted antennas (501 ) are also mounted along at least some of the above-noted adjacent edges to further aid in occluding this line of sight.

Abstract: A gas plasma antenna with a rigid, flexible, or semi-flexible substrate and an improved method of generating a uniform electron density. The antenna comprises a plasma display panel (PDP) containing a multiplicity of Plasma-shells, each Plasma-shell containing a gas which is ionized to produce electron density. Each Plasma-shell acts alone or in concert with other Plasma-shells to form a dipole or pattern of dipoles.

Abstract: Disclosed is a coupling antenna device for transceiving a plurality of wireless signals with multiple radiation frequencies. The coupling antenna device includes an antenna pattern having a plurality of adjacent resonating sectors, each of the resonating sectors having a length determined by a specific radiation frequency responsive to one of the wireless signals.

Abstract: The present invention relates generally to the field of reflector-type antennas based on the offset Gregorian design having a substantially paraboloidal-shaped primary reflector and a substantially ellipsoidal secondary reflector displaced from the optical axis of the primary reflector. The first focus of the secondary reflector is substantially coincident with the focus of the primary reflector and a feed or detector is placed substantially at the second focus of the secondary reflector. A partially open shroud placed between the primary reflector and the secondary reflector is shown to result in reduced ground interference and improved antenna efficiency and sensitivity.

Abstract: The invention refers to a new type of multihole antenna which is mainly suitable for mobile communications or in general to any other application where the integration of telecom systems or applications in a single antenna is important. The antenna consists of a radiating element which at least includes one hole. By means of this configuration, the antenna provides a broadband and multiband performance, and hence it features a similar behaviour through different frequency bands. Also, the antenna features a smaller size with respect to other prior art antennas operating at the same frequency.

Abstract: A triplate planar slot antenna formed by laying a ground plate, a lower layer side dielectric layer, a lower layer side copper-clad film substrate, an upper layer side dielectric layer, a slot plate and an upper layer side copper-clad film substrate sequentially from the bottom side, wherein a lower layer side copper foil piece is secured to the surface of a lower layer side insulating film by a joining technique not using adhesive, and an upper layer side copper foil piece is secured to the surface of an upper layer side insulating film by a joining technique not using adhesive. In a state where the copper foil pieces are removed, each insulating film has a dielectric constant in the range of 2.0-4.0, a tan ? in the range of 0.001-0.01, and a thickness of 25 ?m or less.

Abstract: An antenna arrangement for a Multiple Input Multiple Output (MIMO) radio system, the antenna arrangement transmitting and receiving in three essentially uncorrelated polarizations. The arrangement includes three parallel, stacked patches separated by first and second slots. A first feeding line feeds the first patch, and at least a second and third feeding line feed the second patch. In a first operating mode, the first feeding line generates a first constant E-field in the first slot between the edges of the first and second patches. In a second operating mode, the second feeding line contributes to a second, sinusoidally varying E-field in the second slot between the edges of the second and third patches. In a third operating mode, the third feeding line contributes to a third, sinusoidally varying E-field in the second slot between the edges of the second and third patches.

Abstract: A method and apparatus for receiving signals transmitted from a plurality of communications satellites. An apparatus in accordance with the present invention comprises a reflecting surface having a focal point, and a plurality of low noise block down converters with feedhorns (LNBFs), each LNBF having a boresight, wherein at least a first LNBF receives signals in a first frequency band transmitted from a first communication satellite location that are focused at a first focal point and at least a second LNBF receives signals in a second frequency band transmitted from a second satellite location that are focused at a second focal point, wherein the boresight of the first LNBF is closer to the first focal point than the boresight of the second LNBF is to the second focal point.

Abstract: The present invention relates to an integrated circuit package comprising at least one substrate, each substrate including at least one layer, at least one semiconductor die, at least one terminal, and an antenna located in the integrated circuit package, but not on said at least one semiconductor die. The conducting pattern comprises a curve having at least five sections or segments, at least three of the sections or segments being shorter than one-tenth of the longest free-space operating wavelength of the antenna, each of the five sections or segments forming a pair of angles with each adjacent segment or section, wherein the smaller angle of each of the four pairs of angles between sections or segments is less than 180° (i.e.

Abstract: A phased array antenna includes a substrate that is segmented into a plurality of array tiles. An array of dipole antenna elements is formed on the substrate with each dipole antenna element positioned on a respective one of the array tiles. Each dipole antenna element includes a medial feed portion and a pair of legs extending outwardly therefrom. Adjacent legs of adjacent dipole antenna elements include respective spaced apart end portions forming a gap between the respective end portions and defined by separate tiles. A capacitor coupler is positioned at each respective spaced apart end portion of adjacent legs and bridging a gap for capacitive coupling respective spaced apart end portions of respective adjacent dipole antenna elements together.

Abstract: The present invention is a method and apparatus to mount a satellite dish to a pole. This apparatus allows the mounting of a satellite dish without attaching the dish to the user's home or business.

Abstract: A wireless communications card for use with an electronic device includes a frame and an antenna system. The frame is configured for removable installation in the electronic device. The antenna system includes first and second antennas each integral with the frame. At least one of the first and second antennas is selectively movable relative to the other between a first antenna configuration and a second antenna configuration.

Abstract: The wireless communication device contains at least one conductive tab that provides an antenna. The tab(s) form a pole antenna, and the tabs may also be attached across a slot to form a slot antenna. The tab(s) may be attached across a slot created in a package to form a slot antenna, or the tab(s) may be attached to a slot that is created as part of the wireless communication device to form a slot antenna. The tab(s) and/or the slot may also contain an adhesive material to attach the wireless communication device to a package, container or other material. More than one slot may be provided to form a circularly polarized antenna. The carrier may be a conductive material in which tabs are formed as part of the carrier before the wireless communication device is attached. The wireless communication device may have an asymmetrical antenna arrangement.