328 results about "Meander" patented technology

An antenna device includes a first antenna element made of a conductive metallic plate and formed in a shape of a meander; a second antenna element made of another conductive metallic plate and formed in another shape of a meander; and a sealing material which is made of a high-dielectric material and is configured to seal the first and second antenna elements by the sealing material, wherein the first antenna element is arranged in parallel with the second antenna element, and wherein the first and second antenna elements are embedded inside the sealing material by insert molding.

A dual interface inlay having a bottom sheet; an antenna wire mounted to the top surface of the bottom sheet; end portions of the antenna wire formed with squiggles or meanders forming contact areas of increased surface area for subsequent attachment of a chip or chip module to the antenna wire; conductive material applied to the end portions of the antenna wire; a top sheet disposed over the bottom sheet for lamination thereto; and recesses formed in a bottom surface of the top sheet, at positions corresponding to the contact area. The antenna wire may be insulated wire, and insulation may be removed from the end portions of the antenna wire. Silicon cushions may be disposed in the bottom sheet under the contact areas.

An antenna means for a portable radio communication device, in particular a hand-portable mobile telephone, having at least one radiating element that has a meandering and cylindrical configuration. This structure is specifically advantageous in combination with an extendable and retractable whip antenna and, when having two or more meandering radiating elements, in multi-band radiating structures. The antenna device is suitable for manufacturing in large quantities, for example by a flexible printed circuit board technique.

The invention concerns a stent comprising a longitudinal axis (12) and a peripheral wall (14) which is formed at least over a part of the length of the stent (10) by a lattice-like carrier structure (24) which is open at two ends. The carrier structure includes at least one bar (16) extending helically around the longitudinal axis in such a way as to provide a helical primary shape (26) for the peripherally extending bar with more than one helical turn. Besides the helical primary shape (26) the bar has a zigzag-like or meander-shaped secondary shape (30) with reversal points and associated reversal portions (32), between which extend bar portions (34) of the peripherally extending bar with an extension component in the longitudinal direction of the stent. The carrier structure further includes connecting bars (40) which respectively bridge over a helical turn of the helical primary structure and which at their two longitudinal ends attach to the bar portions (34) of the helical primary shape between two respective adjacent reversal points.

A multiband antenna with removed coupling includes a radiator formed as a meander line bent zigzag several times and having a gap filling part in at least one area between neighboring meander lines. The gap filling part interconnects the neighboring meander lines. The multiband antenna further includes a ground connected with the radiator and at least one switch element mounted in an area along the longitudinal direction of the radiator and configured to alternately short or open an area of the radiator. Accordingly, two different resonance frequencies can be tuned using the single antenna, and the antenna efficiency can be enhanced by removing the coupling between the resonant frequencies that are tuned through the gap filling.

Apparatus and methods are provided to allow for creation an elastic laminate. Non-stretched elastic can be laid at peaks over a nonwoven layer contained in valleys and atop peaks. Stretched elastic can be laid over tented nonwoven to create nonwoven tunnels when a second nonwoven is laid atop the first nonwoven and elastic, and the tunnels resist un-stretching of stretched elastic strands by frictional or obstruction forces. A laminated material comprising a first and second layer of material bonded at spaced apart bond sites is disclosed, with a plurality of elastic strands disposed in a non-linear manner between said first and second layer of material, so that said strands meander in a cross-machine direction and traverse a machine direction line, restraining movement of the strands by frictional forces between the strands and the non-woven layers.

The invention pertains to the design, arrangement and fabrication of arrays of electromagnetic acoustic transducers (EMATs) for detection and monitoring of defects in metal components while they are being used in service. Emphasis is placed on printed circuit sensor coil designs that are attached to and covered with thin, flexible and insulating substrates. This laminated construction with additional means for electrical and thermal insulation, radiation heat shielding and simple cooling provides for consistent and reliable EMAT performance in monitoring components at elevated temperatures. The arrays include circular spiral coils, elongated spiral (racetrack) coils and rectangular spiral coils. Also described are arrays of dual-rectangular (butterfly) coils, meander coils and trapezoidal coils. Various assembly designs for the attachment of bias magnets are described.

A mono-band or multi-band planar inverted F antenna (PIFA) structure comprises a planar radiating element having a first area, and a ground plane having a second area that is substantially parallel to the radiating element first area. The second area further comprises a section having a meandering form elongating the effective overall length of the radiating element.

The invention relates to a method and a device for monitoring, also permanently and automatically, temperature distributions and/or temperature anomalies on the basis of distributed fiber-optic temperature sensing as well as to the use of such methods. According to the invention the detection of local temperature extremes, i.e. minimums or maximums, in view of the evaluation is performed by an evaluation without numeric derivations. With the device for monitoring ascending and supply pipes surrounded by an annular space it is possible to check the safety of pressurized installations, particularly in the field of low-pressure gas storage, in a cost-efficient manner. Moreover, the position of an underground watershed or respectively the direction and flow rate of the flows in flooded drift sections can be determined on the basis of fiber-optic temperature measurements. The defined arrangement of preferably vertical sensor cables inserted into the bores also makes it possible to examine the tightness of base sole and lateral walls in building excavations. Finally, the virtually horizontal, meander-shaped arrangement of fiber-optic cables situated in several levels makes it possible to evaluate and control the efficacy and homogeneity of leaching processes in leaching dumps and fills.

A segmented magnetostrictive patch array transducer capable of generating a high frequency shear wave in a structure such as a rod or a pipe, a structural fault diagnosing apparatus including the segmented magnetostrictive patch array transducer, and a method of operating the segmented magnetostrictive patch array transducer are shown. The segmented magnetostrictive patch array transducer includes a plurality of magnetostrictive patches attached along a circumference of a rod member; a plurality of insulators that are disposed on the magnetostrictive patches; a plurality of meander coils, each of the meander coils comprising a plurality of coil lines extending along the circumference direction of the rod member on each of the insulators, wherein a current flows through adjacent coil lines in opposite directions to one another; and a plurality of magnets that respectively form a magnetic field along the circumferential direction of the rod member on the magnetostrictive patches.

An intravascular stent especially suited for implanting in curved arterial portion. The stent retains longitudinal flexibility after expansion. The stent is formed of intertwined meander patterns forming triangular cells. The cells are adapted to provide radial support, and also provide longitudinal flexibility after expansion. The cells also provide increase coverage of a vessel wall. Loops in the stent are disposed and adapted to cooperate, so that after expansion of said stent within a curved lumen, the stent is curved and cells on the outside of the curve open in length, but narrow in width, whereas cells on the inside of the curve shorten in length, but thicken in width to maintain a density of the stent element area which is much more constant than otherwise between the inside and outside of the curve. The stent also minimizes flaring out by eliminating free loops of the radially supporting circumferential bands of loops.

The invention provides a chip antenna installed inside a mobile telecommunication terminal, which can process a low band signal. In the chip antenna, a substrate is prepared. A first radiator is formed in a spiral shape inside or on the substrate, and includes at least one spiral radiating part. The first radiator controls inductance of the antenna. Also, a second radiator is connected to the first radiator, and includes an upper meander radiating part disposed in a length direction of the substrate and a lower meander radiating part overlapping and opposing the upper meander in a lower part of the upper meander part. The second radiator controls capacitance of the antenna. In addition, a feeding part is connected to the first radiator, and receives a high frequency current of a given band.

Accelerating the processing speed of a form-fill-seal packaging machine by continuously running a strip-like film, even if using a printing device of an intermittent printing type. Arm members (35) pivot around support axes (36) and are provided on a feed path of a strip-like film (F). Rollers (37,38) guiding the film (F) are provided at front and rear end portions of the arm members (35) whereby portions of the film (F) meander. A stopper member (32) stops the running of the film (F) and is disposed between accumulating portions (A, B). Printing is carried out on the film (F) by a printer (28) of an intermittent printing type in a period of time during which a portion of the film (F) is stopped by the stopper member (32). The continuous running of the film (F) is not hampered during this stoppage period since a portion of the film (F) is accumulated at the accumulating portion (A) on the downstream side.

The invention discloses a meander river sand body reservoir building structure analysis method based on the evolution process. The meander river sand body reservoir building structure analysis method includes the following steps that firstly, the river evolution process is restored, a building structure and distribution characteristics of a river sand body are rebuilt, and determination of a single river channel, analysis of the river channel evolution direction and recognition of a meander bar are conducted; distribution and evolution characteristics of lateral accretion bodies and lateral accretion interlayers inside the meander bar are analyzed, a fine reservoir internal building structure is built, and discrimination of the direction of the lateral accretion bodies in the meander bar and the inclination direction of the lateral accretion interlayers, judgment of the dip angles of the lateral accretion interlayers in the meander bar and acquisition of vertical interlayer intervals and plane development intervals of the lateral accretion interlayers inside the meander bar are conducted. The method has the advantages that the internal structure of the sand body is accurately analyzed, and the matching degree of an analysis result and real evolution is increased, and can be widely applied to the technical field of exploration and development of oil and gas.

A plug connector includes an insulating housing, a terminal module, a middle shielding piece, and a shielding shell surrounding the insulating housing and the terminal module. The terminal module includes a first terminal module and a second terminal module. The middle shielding piece is mounted between the first terminal module and the second terminal module. The terminal module together with the middle shielding piece is assembled to the insulating housing. The middle shielding piece has a base plate. Two portions of two opposite sides of the base plate extend outward and then extend frontward to form two lateral arms. An upper end of a rear surface of each of the lateral arms meanders rearward to form a soldering portion projecting out of the insulating housing. A thickness of the soldering portion is thinner than thicknesses of the base plate and the lateral arms.

A semiconductor test device includes a test circuit having contacts for applying an electrical signal and measuring electrical parameters of the test circuit. The semiconductor test device also includes an integrally formed heating circuit comprising at least one circuit meander positioned adjacent the test circuit for raising a temperature within a portion of the test circuit.

In an optical deflector including a mirror, a movable frame supporting the mirror, a first piezoelectric actuator for rocking the mirror with respect to a first axis of the mirror, a support body supporting the movable frame, and a second piezoelectric actuator for rocking the mirror through the movable frame with respect to a second axis of the mirror, at least one piezoelectric sensor is provided for sensing rocking vibrations of the mirror caused by the first and second piezoelectric actuators. The second piezoelectric actuator includes a pair of meander-type pieoelectric actuators opposite to each other with respect to the first axis. Each of the second meander-type piezoelectric actuators includes a plurality of piezoelectric cantilevers folded at every cantilever and connected from the support body to the movable frame in parallel with the first axis. The piezoelectric sensor is incorporated into an outermost one of the piezoelectric cantilevers.

A flat miniaturized antenna of a wireless communication device includes a baseboard, a sleeve conductor formed on the baseboard and coupled to system ground, a meander-shaped conductor formed inside the sleeve conductor and isolated from the sleeve conductor, having a wide end and a narrow end, a feed-in end formed on the wide end of meander-shaped conductor, for transmitting wireless signals to the wireless communication device, and a branch conductor coupled to the meander-shaped conductor.