Abstract: A device, in particular a pre-assembled transmission cable, is used to transmit differential data signals in a high-speed data connection. The device contains a circuit board with a conductor pair with two signal conductors for transmitting the differential data signal. An output line which is insulated from the conductor pair is paired with the conductor pair, the output line running parallel to the signal conductors in a non-interrupted manner and additionally being connected to a measuring conductor via at least one damping element. By virtue of the configuration, an undesired common-mode signal component is at least partly coupled into the output line, where the signal component is absorbed during operation.

Abstract: Disclosed is a four-mode defected ground structure filter, including a four-mode defected ground structure resonator and two microstrip feed lines. The four-mode defected ground structure resonator comprises a metal dielectric substrate and a defected ground unit which is etched in one surface of the metal dielectric substrate; the microstrip feed lines are arranged at another surface of the metal dielectric substrate; shape of the defected ground unit is axially symmetric about a first central axis of the defected ground unit, and is axially symmetric about a second central axis of the defected ground unit; the first defected ground unit is provided with H-shape or quasi H-shape, the second defected ground unit is provided with L-shape, quasi L-shape, U-shape or quasi U-shape.

Abstract: A high pass filter includes a first LC series resonator including a first end connected to a signal path, and a second end connected to at least one ground terminal, a second LC series resonator including a third end electrically connected to the signal path, and a fourth end connected to the at least one ground terminal, and a third capacitor between a first portion extending from a first capacitor to a first inductor and a second portion extending from a second capacitor to a second inductor.

Abstract: A circuitry includes a functional circuit providing a predetermined function and a resistive device coupled between a power supply and the functional circuit to contribute a resistance on a power supplying path for the power supply to supply power to the functional circuit. The resistance is tunable.

Abstract: A circuit structure is disclosed, wherein the circuit structure comprises: a substrate comprising a top surface, a bottom surface and lateral surfaces connecting the top surface and the bottom surface; a plurality of conductive layers disposed over the top surface of the substrate, wherein a dielectric layer is disposed between each two adjacent conductive layers, wherein at least one capacitor is formed by a first portion of the plurality of conductive layers with the dielectric layers therebetween, and wherein at least one first inductor is formed by a second portion of the plurality of conductive layers; and at least one conductive pattern layer disposed over at least one of the lateral surface to form at least one second inductor, wherein a third portion of the plurality of conductive layers electrically connects with said at least one capacitor, said at least one first inductor and said at least one second inductor.

Abstract: A microwave filter comprises at least one resonant filter element resonating at a resonant frequency and having a housing, a resonant filter cavity arranged in the housing and a resonator element arranged in the housing. At least two tuning elements are arranged on the housing of the resonant filter element and each extend into the cavity with a shaft portion, wherein the two tuning elements are movable with respect to the housing to adjust the length of the shaft portion extending into the housing and wherein the at least two tuning elements are constituted and designed such that by adjusting the length of the shaft portion of each tuning element extending into the housing a temperature drift of the resonant frequency is adjustable.

Abstract: A radio frequency filters and methods for implementing the filters in multilayer metallic-dielectric structures, such as printed circuit boards (PCB), low temperature co-fired ceramic (LTCC) components and integrated circuits (IC). The methods and filters utilize vertical stacking of transmission lines and related frequency-selective structures to obtain compact implementation of filters of high order. The methods and filters are applicable to a variety of filter types and related structures such as multiplexers.

Abstract: A flat plate assembly is provided from at least a pair of plates with at least one surface of one plate have one or more relief channels provided therein around epoxy bonded signal channels. The relief channels are provided having a size and shape selected to control the flow of a liquid bonding adhesive. Adhesive location can thus be controlled through geometry of the relief channels rather than through process controls. Thus, this approach reduces dependence on adhesive process control, reduces wicking of adhesive into signal channels and reduces the number of voids in a bond line of a bonded flat plate assembly.

Abstract: A filter structure improvement includes a substrate, resonance layers, a grounded layer, a pattern layer, an input electrode, and an output electrode. The substrate has resonance holes in which the resonance layers are disposed. One end of the resonance hole is on the open surface and the other end of the resonance hole is on the short-circuit surface. The grounded layer is on the short-circuit surface, top surface, bottom surface, and side surfaces and is electrically connected to the resonance layers to form a short-circuit end. The input and output electrodes, electrically isolated from the grounded layer, are on the bottom or open surface of the substrate. The pattern layer, resonance layers, and grounded layer are arranged to have electrical properties of a filter structure of mutual coupling such that a desired frequency band is obtained by adjusting the pattern layer and the lengths of the resonance layers.

Abstract: An electromagnetic interference filter for various electronic devices such as implantable medical devices is provided. A plurality of signal electrodes can be configured in an array, where each signal electrode extends vertically from a top surface to a bottom surface of the filter such that the signal electrodes are flush with the top and bottom surface. Ground or common electrodes can have a parallel arrangement and be interposed between the signal electrodes. The ground electrodes can be grounded internally, externally, or both internally and externally. Dielectric material can be disposed between signal electrodes and ground electrodes to act as an insulator between adjacent electrodes.

Abstract: A communication device is provided wherein a number of the pairs of transmission lines is N, each pair of the transmission lines comprises (N?1) stages of sub-transmission lines generating a same amount of crosstalk as that caused at a connector, and (N?1) stages of connecting portions comprise a transmission path of the connector and a first stage sub-transmission line, and (N?1) stages of the connecting portions to connect an i th stage sub-transmission line and an (i+1) th stage sub-transmission line by the straight/cross connection, and wherein each pair of the transmission lines is different in all pairs in a number of the connecting portion having the cross connection; and as a j th stage connecting portion in any one pair of the transmission lines has cross connection, a (N?j) th stage connecting portion in the any one pair of the transmission lines also has cross connection.

Abstract: The connecting device is composed of a first connecting member having a first housing receiving a connected first waveguide, and a second connecting member having a second housing receiving a connected second waveguide, the first housing having a first mating surface and a first magnet, and the second housing having a second mating surface and a second magnet, and the first connecting member and the second connecting member being displaced relative to each other in a mating direction orthogonal to the axial direction of the first waveguide and the second waveguide, and being positioned relative to each other by the magnetic force of the first magnet and the second magnet.

Abstract: An apparatus includes a self-coupled transformer, a first band stop filter and a tank circuit connected in series with the first band stop filter between first and second windings of the self-coupled transformer. An inductor of the tank circuit acts as an out-of-phase third winding of the self-coupled transformer.

Abstract: A phase shift device includes a planar transmission line that is formed by a signal electrode and a ground electrode which are separated by a dielectric substance, whereby the signal electrode of the planar transmission line is divided into several pieces and includes overlapping areas of adjacent pieces that are filled with a tunable liquid crystal material, thereby forming a dielectric tunable component (varactor) with a metal-insulator-metal type capacitor. The several pieces of the signal electrode are arranged at two or more different distance levels with respect to the ground electrode. The tunable liquid crystal material is arranged as a continuous layer between several pieces of the signal electrode that are arranged at two different distance levels.

Abstract: The present disclosure is directed to a balun circuit adapted to operate at a frequency of between about 5 GHz to about 110 GHz. The balun circuit includes first and second output striplines and an input stripline formed on a first surface of the substrate, and a slotline formed on a second surface of the substrate opposite the first surface. The slotline has first and second ends, the first end overlapping the first output stripline and the second end overlapping the second output stripline, and the input stripline overlapping the slotline midway between the first end and the second end.

Abstract: A differential transmission cable includes a pair of signal lines, an insulation covering the pair of signal lines, and a shielding tape that includes a conductor layer and an insulation layer formed on one surface of the conductor layer and is helically wound around the insulation. The diameter of the signal line is thinner than at least 30 AWG (American Wire Gauge), and differential characteristic impedance is not less than 80? and not more than 120?.

Abstract: The network filtering circuit includes a cable side for connection with a network cable, a physical side for connection with a mother board, and a plurality of transmission channels connected between the cable side and the physical side. Each of the transmission channels includes a first transmission line and a second transmission line with a CMC linked therebetween. Two filtering (Y type) capacitors are further linked between the first transmission line and the second transmission line with a middle line connected between the two filtering capacitors and having an extension line wherein in such an extension line there are a resistor and an optional adjusting capacitor to a ground node at the end in series connection.

Abstract: A common mode filter includes a body portion including a plurality of external electrodes disposed externally on the body portion, a first filter portion disposed within the body portion and including a plurality of coil electrode layers, and a second filter portion disposed within the body portion and including a plurality of coil electrode layers. The first filter portion and the second filter portion are connected to each other in series, and an area of the plurality of coil electrode layers of the first filter portion and an area of the plurality of coil electrode layers of the second filter portion are different from each other.

Abstract: A structure which cuts off propagation of an electromagnetic wave at one or more frequencies is provided. The structure comprises linear third conductors arranged on a plurality of different layers different from a first layer of a substrate including the first layer where a first conductor is formed and a second layer where a second conductor is formed, and at least one fourth conductor configured to connect one end of one conductor out of the third conductors to one end of another conductor out of the third conductors. At least one of the third conductors has a curved shape.

Abstract: Techniques and mechanisms for changing a permittivity of a liquid crystal (LC) cell that is to facilitate a radiating or guiding of a radio frequency electromagnetic wave. In an embodiment, a device includes electrodes coupled to variously apply different electrical fields to the LC cell at different times. At one time, a first electrical field is applied to increase an average alignment of polar LC molecules with a first axis. At another time, a second electrical field is applied to decrease the average alignment of such polar LC molecules with the first axis. The first electrical field and the second electrical field have different respective directions at a first location of the LC cell. In another embodiment, the first electrical field is applied with a first plurality of electrodes and the second electrical field is applied with a second plurality of electrodes that is different than the first plurality of electrodes.