Abstract: An array antenna includes a modular, multi-layer, multi-balun board structure for use in feeding a dual polarization radiating element. In some embodiments, contacts on a multi-balun board structure may be directly conductively coupled to corresponding feed points of a dual polarization radiating element during antenna assembly. The multi-balun board structure may be inserted into an opening within an aperture board of an array antenna before the contacts are secured to the feed points. Dual balun board structures may be provided for some or all of the radiating elements on the aperture board.

Abstract: A two-arm delta mode spiral antenna includes a dielectric substrate having an upper side, a lower side, and an outward edge. A flat top cone with cylinder sidewall is attached to the lower side of the dielectric substrate, forming a scalable feed cavity. Two spiraling conductive radiator arms are mounted on the dielectric substrate. A magic-T is electrically connected to the two spiraling conductive radiator arms.

Abstract: A compound loop antenna (CPL) is described that includes a capacitively fed magnetic loop and/or a capacitively fed electric field radiator. Embodiments include single-band CPL antennas and multi-band CPL antennas. The CPL antennas have been reduced in physical size by capacitively feeding the loop and/or radiator. The embodiments include at least one e-field radiation element that is capacitively coupled or not capacitively coupled, at least one magnetic loop element that is capacitively coupled. A continuation of the magnetic loop may be continued with either a wire or a connection to a second layer.

Abstract: A device and related method for refracting radio waves to enable the temporary or permanent recording of said waves. The device includes a piece of material that is transparent or translucent to radio waves. The piece of material, which may be solid, is selected to have an inherent radio wave refraction index greater than a value of one for either its transparent or translucent state. The radio waves are selectively passed through the material and recorded on a translation medium for observation.

Abstract: A printed wide band monopole antenna module is provided. The module comprises: a substrate having a first surface, a ground terminal part formed on the first surface, and an antenna body disposed on the first surface opposite to the ground terminal part. The antenna body comprises: a first extending part having a first length, a second extending part having a second length, and a third extending part having a first width. The width of the second extending part is the first width plus a second width. The second extending part forms a connection with the first and the third extending part. The ratio of the first length to the second length is less than a first value. The ratio of the first length to the sum of the first and the second width is less than a second value.

Abstract: Methods and systems for configuring a leaky wave antenna (LWA) utilizing micro-electromechanical systems (MEMS) are disclosed and may include configuring a resonant frequency of one or more LWAs in a wireless device utilizing MEMS actuation. RF signals may be communicated using the LWAs. The LWAs may be integrated in metal layers in a chip, an integrated circuit package, and/or a printed circuit board in the wireless device. The LWAs may include microstrip waveguides where a cavity height of the LWAs may be dependent on a spacing between conductive lines in the microstrip waveguides. The LWAs may be configured to transmit the wireless signals at a desired angle. The integrated circuit package may be affixed to a printed circuit board and an integrated circuit may be flip-chip-bonded to the integrated circuit package. An air gap may be integrated adjacent to one or more of the metal layers for the MEMS actuation.

Abstract: A measurement device for operating in high voltage electrical fields such in high voltage electrical switchgear, having a sensor and a ?/2 monopole helical antenna coupled thereto. The antenna is coupled to a ground via return stub in lieu of the common ground plane. The antenna is made of wire having a sufficiently large diameter to prevent forming corona discharge point electrode throughout the outer surface of the volume defined by the antenna, thus minimizing corona discharge risk. The antenna further provide relative immunity from induced voltage at the 50-400 Hz range from the high voltage fields, allowing ESD sensitive devices to operate in close proximity to the high voltage conductors.

Abstract: A method and an arrangement for modeling antenna emission characteristics are disclosed. A slotted microwave waveguide is implemented by separate mechanical modules having slot groups respectively implemented therein. For this purpose, the modules are arranged along at least one first spatial direction, so that the modules sectionally form a part of the delimitation of the waveguide. The waveguide formed can be fed by exciting a waveguide mode and the mode propagates through the interior of the module in the waveguide formed. Screens are arranged in front of the modules, to partially cover the slot groups. Arbitrary emission characteristics can be simulated, wherein no separate feed network is necessary due to the use of a modular waveguide.

Abstract: The present invention relates to an augmented antenna capable of operating in a wider frequency band, and receiving and reradiating radio signals. The augmented antenna includes radiation patterns formed using a plurality of radiation slots having multiple coupling regions. The radiation patterns are symmetrically connected and impedance-matched to transmit and receive radio signals, thereby improving a radio wave propagation environment.

Abstract: A MIMO antenna used in both transmit and receive operations, with the ability to serve an n-by-n MIMO transceiver architecture (where n can take integer values between 0 to 4). The structure is designed to increase the effective area of the array by coupling the bars of the antenna to the disc and results in good isolation and low envelope correlation.

Abstract: A hinge antenna comprises a major conductor, a first rotating element and a second rotating element. The stretching arms on both sides of the major conductor are assembled to the first rotating element and the second rotating element, respectively. The first rotating element further comprises a torque device and a first vice conductor, and the second rotating element further comprises a signal feeding line, a connection device, and a second vice conductor. The signal feeding line is electrically connected to the connection device and the second vice conductor, by which a high frequency signal can be passed to the major conductor, and then passed to the torque device on the other side and the first vice conductor. The aforementioned configuration is utilized to form an antenna loop. In addition, the configuration of this antenna can be applied to a foldable electronic device.

Abstract: Reflector antennae and related structures and methods are described. The reflector antennae may have a deep f/D ratio and use an offset corrugated horn. Pivoting feed arms may be included for connecting a feed horn to a dish of the antenna. Radomes are also described, which may be formed of two or more pieces.

Abstract: An electronic device may have a metal housing. The metal housing may have an upper housing in which a component such as a display is mounted and a lower housing in which a component such as a keyboard is mounted. Hinges may be used to mount the upper housing to the lower housing for rotation about a rotational axis. A slot-shaped opening may separate the upper and lower housing. A flexible printed circuit with ground traces may bisect the slot-shaped opening to form first and second slots. Cavity antennas may be aligned with the slots. Each cavity antenna may include a hollow carrier with a pair of speakers. The speakers may have ports that emit sound through aligned openings in the lower housing. Conductive gaskets surrounding the ports may acoustically seal the speaker ports while shorting the cavity antenna to the lower housing.

Abstract: An antenna array includes a plurality of sub-arrays each having a plurality of linearly polarized antenna elements, with each antenna element having an orthogonal feed orientation with respect to its adjacent antenna elements, and at least two feed lines each connected by at least one sub-feed line to at least two antenna elements having orthogonal feed orientations such that each antenna element is equally and progressively phase rotated. The antenna elements in at least two separate lines of the array, such as array rows or columns, are connected to a separate feed line. The antenna elements may be aperture coupled microstrip patch elements having a single slot fed by one of the sub-feed lines or cross-slot elements fed by two sub-feed lines. The sub-feed lines in a separate row or column are power combined into either one or two feed lines and may be connected to a beamformer.

Abstract: A disclosed antenna device includes a substrate made of a dielectric material, an antenna element formed on one side of the substrate, and a ground element formed on another side of the substrate.

Abstract: A multiple input, multiple output (MIMO) antenna system includes an electrically conductive, substantially planar, ground reference and a plurality of antenna assemblies electrically connected to respective antenna feeds at respective connection points. The antenna assemblies extend on a first side of the ground reference and are formed from a conductive material. Each antenna assembly is rotationally asymmetric around an axis perpendicular to the ground reference and passing through the connection point.

Abstract: A communication device, including a device casing, an external connection element, and a first metal element, is provided. A ground element and an antenna element are disposed in the device casing. The ground element has a first edge, a second edge, and a first connection point. The first edge and the second edge are opposite to each other. The first connection point is disposed near or at the second edge. The antenna element is disposed near the first edge. The external connection element is formed by a non-conductive material and is outside the device casing. The external connection element has a belt-like structure and is combined with the device casing to substantially form a loop structure. The first metal element is supported by the external connection element and is coupled to the first connection point of the ground element.

Abstract: A radiating system for transmitting and receiving signals in first and second frequency regions includes a radiating structure, a radiofrequency system, and an external port. The radiating structure has first and second isolated radiation boosters coupled to a ground plane layer. A first internal port of the radiating structure is between the first radiation booster and the ground plane layer, and a second internal port is between the second radiation booster and the ground plane layer. A distance between the two internal ports is less than 0.06 times a wavelength of the lowest frequency. The maximum size of the first and second radiation boosters is smaller than 1/30 times the wavelength of the lowest frequency. The radiofrequency system includes two ports connected respectively to the first and the second internal ports of the radiating structure, and a port connected to the external port of the radiating system.

Abstract: An antenna apparatus includes a ground plane having a rectangular shape in plan view, and four inverted F antenna elements configured to be placed on a surface of the ground plane and to be arranged in a symmetrical manner with respect to the central point of the ground plane in plan view, wherein each of the four inverted F antenna elements includes a short strip extending from one end of a main strip to the short end, a feeding strip, an open strip configured to extend toward the open end from the other end of the main strip to a position placed at a second height lower than the first height, and an end strip configured to extend from a distal end of the open strip to the open end and placed parallel to the ground plane at the second height.

Abstract: An antenna device of a portable terminal including conductive components is provided. The antenna device includes a first radiator connected to a power feeding unit of the portable terminal and a second radiator connected to each of the power feeding unit and a ground part of the portable terminal. At least one of the conductive components is connected to at least one the first radiator and the second radiator. The conductive components may be used as a radiator of the antenna device such that the antenna device may be easily installed within an inner space of a miniaturized and lightened portable terminal and the inner space of the portable terminal may be efficiently used.