Abstract: In a U-shaped deformed folded dipole antenna, a first parallel section having a feeding point includes first and second L-shape sections, and a second parallel section without a feeding point includes first and second opposing side portions and a connecting side portion coupling ends of the first and second opposing side portions. Portions of the first and second L-shape sections arranged in parallel with the first and second opposing side portions have a width W1. Portions of the first and second L-shape sections arranged in parallel with the connecting side portion have a width W2. The first and second opposing side portions have a width W3. The connecting side portion has a width W4. An impedance of the deformed folded dipole antenna is controlled by setting the width W2 to be larger than the widths W1, W3, and W4.
Abstract: An apparatus for a semiconductor-package includes a semiconductor device having a radio frequency (RF) input or output, an antenna pad, and a package structured to house the semiconductor device and the antenna pad. The antenna pad may be coupled to the radio frequency (RF) input or output, and the antenna pad is structured to reduce the inductance of the package. The antenna pad may include a pad disposed above the semiconductor device, a pad disposed to a side of the semiconductor device, or an antenna chip. An antenna may be coupled to the antenna pad. The antenna may include a trace antenna, a staggered antenna, or a helical antenna.
Abstract: A portable terminal includes a terminal body, a first antenna provided on a circuit board having a first ground that is used by the first antenna, and an antenna assembly integrated into the terminal body. The antenna assembly of the portable terminal includes at least one diversity antenna fed to the circuit board and formed on the circuit board having a ground that is independent from the first ground. The at least one diversity antenna is formed into an angled configuration with respect to the circuit board.
Abstract: Methods and systems for a 60 GHz leaky wave high gain antenna are disclosed and may include communicating RF signals using one or more or more leaky wave antennas (LWAs) in a wireless device. The LWAs may be integrated in metal traces on a chip, a package, and/or a printed circuit board (PCB). The metal traces may supply voltage signals to one or more circuits on the chip, package, and/or PCB. The voltage signals may include DC bias voltages, and/or signals at a frequency that is lower than a resonant frequency of the LWAs. The LWAs may include microstrip or coplanar lines where a cavity height of the LWAs is dependent on a spacing between the lines. An angle of the wireless signals with a surface of the chip, package, and/or PCB may be dynamically configured. The LWAs may be configured via switches in the chip, package, and/or PCB.
Abstract: According to one embodiment, an antenna mounted on a portable apparatus having a hinge structure includes: a radiating element formed in a disk shape and configured to radiate a radio wave; a power feeding element exciting the radiating element; and a ground plate including a bottom surface arranged in parallel to the radiating element and the power feeding element and a side surface configured to allow a power feeding path feeding electric power to the power feeding element to pass in an area different from an area opposed to the hinge structure.
Abstract: A wireless communication-improving sheet member for increasing a possible communication distance of an IC tag for wireless communication, a wireless IC tag, an antenna, and a wireless communication system. The sheet member may include a first spacer having an arrangement face on which the wireless IC tag is disposed without a wired connection, and an auxiliary antenna is disposed on the first spacer on an opposite side to the arrangement face, the auxiliary antenna resonating with electromagnetic waves used in the wireless communication. The auxiliary antenna has a first conductor layer as a resonant layer and a second spacer. The second spacer is disposed on an opposite side to the first spacer with the first conductor layer interposed therebetween. A discontinuous area is disposed in the first conductor layer of the auxiliary antenna.
Abstract: An object is to provide a goods storage tool that enables an antenna to be connected to an electronics device without the need to take out the antenna from a storage object in which the antenna is stored. A goods storage tool of the present invention is a goods storage tool for storing goods or contents therein. The goods storage tool includes an antenna that is stored in the goods storage tool; and a connection portion that enables a feeder connector connected to an electronics device to be connected to the antenna in such a way that the antenna remains stored in the goods storage tool.
Abstract: An antenna evaluation apparatus includes receiving antennas to be evaluated, scatterer antennas provided around them, signal generators, delay circuits, dividers, phase-shift circuits, and attenuation circuits. A computer controls the delay circuits to add delay times to radio frequency signals, and controls the phase-shift circuits and attenuation circuits to change phases and amplitudes of the radio frequency signals to produce a first fading. The antenna evaluation apparatus radiates the radio frequency signals from the scatterer antennas, thus creating multipath waves including delay and fading around the receiving antenna.
Abstract: A computer measures amplitudes and phases respective received signals S60a relative to a transmitting signal when radio waves are radiated solely from each of the scatterer antennas and received by using a calibration receiving antenna, determines a target amplitude based on measured amplitudes, and determines a target phase based on measured phases. Reference attenuation amount control voltages for respective attenuators are set to attenuation amount control voltages for making the measured amplitudes coincidence with an identical target amplitude, and a reference phase shift amount control voltage for each phase shifter is set to phase shift amount control voltages for making the measured phases coincidence with an identical target phase.
Abstract: An antenna includes a first loop defining a first enclosed area and having a first phase center point, a second loop coupled to the first loop and disposed substantially parallel to the first loop, the second loop defining a second enclosed area, and a third loop coupled to the first loop and the second loop and substantially parallel to the first loop, the third loop defining a third enclosed area with a plurality of adjuster elements coupled to at least one of the first loop, the second loop, or the third loop to provide an adjustable loop and configured to expand or contract the enclosed area of the adjustable loop.
February 15, 2011
Date of Patent:
May 6, 2014
Thomas G. Lavedas, Milan Chukel, Kim Degnan
Abstract: A multi-band antenna array for use in wireless communication devices with up to three simultaneous operating modes with improved antenna efficiency and reduced antenna coupling across a broad range of operative frequency bands with reduced physical size is described. The multi-band antenna array includes at least two loop antenna elements, each of which is orthogonal to, and arranged in an embedded manner, relative to each other. Each loop antenna in the multi-band antenna array may include a corresponding tuning element for tuning to a desired resonant frequency, and be comprised of an upper and lower half with the corresponding tuning element coupled therebetween.
Abstract: An extended varying angle antenna is used with an electromagnetic radiation dissipation device to reduce exposure to electromagnetic radiation. The extended antenna captures radiation from an active emission source, such as a transmitting cellular telephone. The device converts the captured radiation into an electric current and dissipates the collected current by operating the dissipation device. The extended antenna is a printed circuit board trace antenna comprising a microstrip having a meandering portion with several serially connected meandering segments and an extended portion. One or more meandering segments include 90-degree bends in the microstrip, and one or more meandering segments include bends of more and less than 90 degrees. The extended portion includes two or more parallel horizontal portions and at least one vertical portion, all connected by 90-degree bends.
Abstract: The subject disclosure relates to solar energy collection and use in communications systems and to enhancements thereof. In an aspect, dual function antennas are disclosed that can simultaneously function as an antenna and as a solar energy collection system. In further aspects, disclosed embodiments can focus incident solar radiation to increase output voltage of conventional solar cells. Measured and simulated results demonstrate various aspects of the subject disclosure.
Abstract: Watches comprising an antenna are described herein. In an implementation, a watch includes a housing enclosing an antenna, a printed circuit board, and a conductive cage. The antenna may be provided with a ground plane including a first portion and second portion. The first portion of the ground plane may be formed by the printed circuit board electrically coupled with the antenna and the second portion of the ground plane may be formed by the conductive cage supporting the printed circuit board and electrically coupled thereto.
January 17, 2012
Date of Patent:
April 15, 2014
Garmin Switzerland GmbH
Kathryn M. Gutschenritter, Jeremiah H. Estes, Thomas J. Vehlewald
Abstract: A portable electronic device is provided that is capable of reducing the degradation in the characteristic of an antenna caused by the orientation direction of the antenna being fixed. The device includes a circuit board disposed in the vicinity of an antenna, a conductive switch terminal that is provided to the circuit board and detects an operation to an operation unit, a reference potential part provided to the circuit board to be opposite to the switch terminal, a conductive part provided to the circuit board to be opposite to the antenna, and a switch unit capable of switching whether the reference potential part and the conductive part are electrically connected.
Abstract: An interband cascade laser amplifier medium having an amplifier region (V) comprising a hole quantum film (1) comprising a first semiconductor material and an electron quantum film (2) comprising a second semiconductor material, an electron collector region (K) comprising at least one collector quantum film (4) comprising a third semiconductor material and separated by a first barrier layer (3), and an electron injector region (I) following the latter and comprising at least one injector quantum film (5) comprising a fourth semiconductor material and separated by a second barrier layer (3). The first semiconductor material of the hole quantum film (1) is a III-V compound semiconductor comprising at least four elements, at least two of the elements selected from Ga, In and Al, and at least two of the elements selected from As, Sb, P and N. The amplifier medium exhibits an efficient laser emission at wavelengths above 2.5 ?m.
Abstract: An antenna core design. An antenna assembly is provided for use in tracking and locating equipment used to track and locate tools with underground drilling systems. The antenna assembly comprises an elongate core, a plurality of metal strips supported on an external surface of the core, an insulating material adapted to insulate each of the plurality of metal strips from the other metal strips and the core, and a wire disposed around the external surface of the strips. Alternatively the antenna assembly comprises an elongate core, an insulating material disposed around a perimeter of the core, and a wire disposed around the insulating material. The core has a plurality of slots cut from one end of the core so that the core defines a plurality of metal strips. A support ring is disposed on the internal surface of the core to support the metal strips.
Abstract: A dual frequency band antenna has a first section with a dielectric material separating parallel first and second conductive layers. An electrical shunt extends between the first and second electrically conductive layers. A second section includes an inverted F element electrically connected to the second electrically conductive layer. A transmission medium carries signals between the antenna assembly and a communication circuit and has a first electrical conductor connected to the first electrically conductive layer and a second electrical conductor connected to the inverted F element.
Abstract: An improved waveguide feed includes a ridged waveguide section and a feed section. The ridged waveguide section includes a wall structure and spaced-apart opposing ridges disposed on an internal surface of the wall structure, with the spaced-apart opposing ridges extending along a major axis of the wall structure. The feed section is coupled to the ridged waveguide section, and includes an extension of only a portion of the wall structure of the ridged waveguide section, and an extension of the spaced-apart opposing ridges disposed on an internal surface of the extended wall structure of the feed section.
Abstract: A patch antenna system comprises a patch antenna having a patch spatially separated from a ground plane; a plurality of pins interposed between the patch and the ground plane selectively connecting the patch to the ground plane; and a control module operably coupled to the plurality of pins and operable to set an operating frequency characteristic of the patch antenna by selectively connecting the patch to the ground plane with one or more of the plurality of pins.
April 15, 2010
Date of Patent:
February 25, 2014
Board of Trustees Operating Michigan State University