Abstract: An adjustment apparatus is provided, which includes a drive unit; a plurality of adjustment rods correspondingly connected to a plurality of loads, the plurality of adjustment rods are classified into a first adjustment rod group and a second adjustment rod group; a selection unit, wherein the drive unit is configured to drive the selection unit to be connected to at least one adjustment rod in the first adjustment rod group or at least one adjustment rod in the second adjustment rod group; a shift unit, wherein the shift unit is configured to enable the selection unit to be switched between the first adjustment rod group and the second adjustment rod group; and an adjustment unit, wherein the drive unit is configured to drive the adjustment unit to drive the adjustment rod connected to the selection unit to move.

Abstract: An antenna feeding network for a multi radiator antenna is provided. The antenna feeding network comprises at least one coaxial line. Each coaxial line comprises a central inner conductor and an elongated outer conductor surrounding the central inner conductor, wherein at least one of the outer conductors of the coaxial lines is provided with an opening, wherein the antenna feeding network further comprises at least one nonconductive holding element configured to be placed in the opening. The holding element is configured to hold at least one of the inner conductors in position. The invention further relates to a multi radiator antenna comprising such an antenna feeding network, and to a method for providing an electrical connection in such an antenna feeding network.

Abstract: The present invention discloses a phase adjustment apparatus. The phase adjustment apparatus includes at least two phase adjustment units, a switching apparatus, and a driving apparatus; where the at least two phase adjustment units are configured to modulate a phase; the driving apparatus is configured to drive the at least two phase adjustment units to move; the at least two phase adjustment units are selectively connected to the driving apparatus; and the switching apparatus is configured to select the at least two phase adjustment units, so that the driving apparatus drives, at a same moment, only one of the at least two phase adjustment units connected to the driving apparatus to move, so as to change a phase. The present invention discloses a multi-frequency antenna which applies the phase adjustment apparatus. The phase adjustment apparatus of the present invention may adjust a downtilt angle of an antenna unit.

Abstract: Antenna arrangement for a multi radiator base station antenna, the antenna having a feeding network based on air filled coaxial lines (15; 19), wherein the coaxial line being an integrated part of a back side of an antenna reflector (1), and wherein the coaxial line comprises an outer conductor (9) and an inner conductor (7; 14). Two parallel columns of radiators (11) are placed on a front side of the antenna reflector (1), the radiators (11) being fed from said feeding network.

Abstract: Antenna arrangement for a multi-radiator base station antenna, the antenna having a feeding network based on air filled coaxial lines (1, 2, 3), wherein each coaxial line comprises an outer conductor (8) and an inner conductor (4, 5, 6), wherein an adjustable differential phase shifter including a dielectric part (9) is arranged in the antenna and said dielectric part being movable longitudinally in relation to at least one coaxial line 1, 2, 3).

Abstract: A DC blocking device of a small size is disclosed. The disclosed DC blocking device may include: an internal conductor where RF signals are inputted; and an external conductor electrically connected to a ground; wherein the internal conductor has an insertion groove, and an insertion conductor is inserted into the insertion groove without touching the internal conductor and at a designated distance, and the diameter of the external conductor in the portion where the insertion conductor is inserted is set to be different from the diameter of another portion. The disclosed DC blocking device has the advantages of minimizing the spatial constraint when the DC blocking device is mounted on a mobile communication device, and of achieving suitable coupling even if the length of the part where coupling is achieved is reduced in the DC blocking device.

Abstract: A polarization converter may include an annular waveguide comprising an inner conductor having an outer surface and an outer conductor having an inner surface coaxial with the outer surface of the inner conductor. A plurality of loading structures may be disposed within the annular waveguide to form a plurality of regions within the annular waveguide including an alternating sequence of high phase shift regions and low phase shift regions along a direction of propagation of an electromagnetic wave. The plurality of loading structures may be configured to introduce a predetermined relative phase shift between orthogonally polarized first and second components of the electromagnetic wave for a predetermined operating frequency band. The plurality of loading structures may be further configured to suppress propagation of one or more higher order modes in the annular waveguide over the operating frequency band.

Abstract: An audio/video system includes a display having a plurality of input sources and a first peripheral device connected to one of the input sources. The display provides a user interface for receiving a switching command for switching current input source of the display among the input sources from a user, and the display automatically generates a first standby command to the first peripheral device when the received switching command is not switching the current input source to the input source corresponding to the first peripheral device.

Abstract: Multi-layer, multi-material fabrication methods include depositing at least one structural material and at least one sacrificial material during the formation of each of a plurality of layers wherein deposited materials for each layer are planarized to set a boundary level for the respective layer and wherein during formation of at least one layer at least three materials are deposited with a planarization operation occurring before deposition of the last material to set a planarization level above the layer boundary level and wherein a planarization occurs after deposition of the last material whereby the boundary level for the layer is set. Some formation processes use electrochemical fabrication techniques (e.g. including selective depositions, bulk depositions, etching operations and planarization operations) and post-deposition processes (e.g. selective etching operations and/or back filling operations).

Abstract: Antenna arrangement for a multi-radiator base station antenna, the antenna having a feeding network based on air filled coaxial lines (1, 2, 3), wherein each coaxial line comprises an outer conductor (8) and an inner conductor (4, 5, 6), wherein an adjustable differential phase shifter including a dielectric part (9) is arranged in the antenna and said dielectric part being movable longitudinally in relation to at least one coaxial line (1, 2, 3).

Abstract: A radio frequency source includes a coaxial non-linear transmission line. The coaxial non-linear transmission line may include a closed, non-magnetic, cylindrical outer conductor defining a cavity therein; and a plurality of stages enclosed by the outer conductor. Each stage may then includes an axial field solenoid wound about the outer conductor; a non-magnetic, cylindrical inner conductor disposed within the cavity and coaxially aligned with the outer conductor; a plurality of cylindrical ferrite switch elements, each defining a respective bore through which the inner conductor runs; and a plurality of inner and outer cups coaxially aligned with the inner and outer conductors, each defining a respective bore through which the inner conductor runs.

Abstract: Pulse-generator circuits that permit independent control of pulse widths and the delays between successive pulses. In several embodiments, a pulse-generator subcircuit includes a transmission-line segment comprising first and second conductors, configured such that the first conductor is coupled to a first DC potential. The pulse-generator subcircuit further includes a terminating resistor coupled to a first end of the second conductor of the first transmission-line segment; this terminating resistor is matched to the characteristic impedance of the transmission-line segment. The pulse-generator subcircuit further includes first and second switches, controlled by first and second timing signals, respectively, and configured to selectively and independently connect respective first and second ends of the first conductor to a second DC potential.

Abstract: A phase-shift network may include a lattice network including a first capacitor coupling a first circuit node to a second circuit node, a second capacitor coupling a third circuit node to a fourth circuit node, and a first inductor coupling the first circuit node to the fourth circuit node. A first coupled section may couple a single-ended input node to the lattice network. A second coupled section may couple the lattice network to a single-ended output node. Each coupled section may include a plurality of conductors that may form a transmission line, such as a coaxial transmission line or a stripline. A high-pass circuit may couple the input node to the first coupled section. A phase difference network may include a signal divider producing two intermediate signals coupled to respective phase-shift networks producing output signals having substantially constant phase difference over a frequency range.

Abstract: A coaxial phase shifter for very high RF-powers includes an optionally-cooled housing which forms the outer conductor and in which a substantially U-shaped inner conductor made of a tube is arranged which comprises at each of its ends a cooling medium connection for guiding through a cooling medium. The U-shaped inner conductor is externally displaceable for changing its electrical length between a contact-making input-side inner-conductor connection piece and a contact-making output-side inner-conductor connection piece. The inner-conductor connection pieces are disposed coaxially in the outer connection flanges which make contact with the housing.

Abstract: In an environmentally hardened network, a data and power distribution cable is employed in connection with reliable end connectors, high performance physical layer transceivers clocked at a lower rate than is specified and full duplex switched packet transmission techniques between switched nodes in order to extend operational distance between network elements. In a specific embodiment, the data and power distribution cable comprises a data distribution element, a power distribution element, an optional strain distribution element, an optional hollow conduit, and an extra shield and outdoor sheath.

Abstract: There is disclosed a linear polarization to circular polarization converter. An outside surface of an inner conductor may be coaxial with the inside surface of an outer conductor. First and second diametrically opposed fins may extend outward from the outer surface of the inner conductor. Each of the first and second fins may include a conductive fin and a dielectric fin.

Abstract: RF and microwave radiation directing or controlling components are provided that may be monolithic, that may be formed from a plurality of electrodeposition operations and/or from a plurality of deposited layers of material, that may include switches, inductors, antennae, transmission lines, filters, and/or other active or passive components. Components may include non-radiation-entry and non-radiation-exit channels that are useful in separating sacrificial materials from structural materials. Preferred formation processes use electrochemical fabrication techniques (e.g. including selective depositions, bulk depositions, etching operations and planarization operations) and post-deposition processes (e.g. selective etching operations and/or back filling operations).

Abstract: An integrated circuit structure includes an interconnect structure over a semiconductor substrate and a coaxial transmission line. The coaxial transmission line includes a signal line, a top plate over the signal line and electrically insulated from the signal line, and a bottom plate under the signal line and electrically insulated from the signal line. At least one of the top plate and the bottom plate includes metal strip shields and dielectric strips, with each of the dielectric strips being between two of the metal strip shields. The integrated circuit structure further includes a ground conductor electrically connecting the top plate and the bottom plate. The ground conductor is insulated from the signal line by a dielectric material.

Abstract: A transmission line includes a signal conductor and at least one varactor diode capacitively coupled to the signal conductor. The transmission line's signal path delay is a function of its shunt capacitance, and the varactor's capacitance forms a part of the transmission line's shunt capacitance. The transmission line's signal path delay is adjusted by adjusting a control voltage across the varactor diode thereby to adjust the varactor diode's capacitance.

Abstract: A coaxial phase shifter for very high RF-powers includes an optionally-cooled housing which forms the outer conductor and in which a substantially U-shaped inner conductor made of a tube is arranged which comprises at each of its ends a cooling medium connection for guiding through a cooling medium. The U-shaped inner conductor is externally displaceable for changing its electrical length between a contact-making input-side inner-conductor connection piece and a contact-making output-side inner-conductor connection piece. The inner-conductor connection pieces are disposed coaxially in the outer connection flanges which make contact with the housing.

Abstract: There is disclosed a linear polarization to circular polarization converter. An outside surface of an inner conductor may be coaxial with the inside surface of an outer conductor. First and second diametrically opposed conductive fins may extend outward from the outer surface of the inner conductor. First and second dielectric fins may be interlocked with the first and second conductive fins, respectively.

Abstract: The elliptical response bandpass filter according to the invention comprises a plurality N of cavities connected in series by means of in-phase coupling loops; the first cavity is in addition connected to the last by a complementary phase-inversion coupling loop in order to generate transmission zeros at determined frequencies.

Abstract: Impedance mismatching points such as a VIA and a connector on a differential line between a differential driver element and a differential receiver element are arranged in predetermined positions. That is, the impedance mismatching points are arranged in such positions that a transmission time of a digital signal transmitted through a main differential line becomes (integral multiple of UI)±0.5×Trf, whereby noises are generated within the rise and fall times of a signal to be able to maintain an excellent waveform of the signal.

Abstract: A tunable delay line for radiofrequency applications includes a waveguide and a dielectric perturbing member that is displaceable relative to the waveguide for varying the delay imparted by the line. The waveguide is a ridge waveguide and the perturbing member is arranged parallel to a longitudinal end surface of the ridge and is movable in the ridge plane, toward and away from the ridge end surface, or in a direction transversal to the ridge.

Abstract: RF and microwave radiation directing or controlling components are provided that may be monolithic, that may be formed from a plurality of electrodeposition operations and/or from a plurality of deposited layers of material, that may include switches, inductors, antennae, transmission lines, filters, and/or other active or passive components. Components may include non-radiation-entry and non-radiation-exit channels that are useful in separating sacrificial materials from structural materials. Preferred formation processes use electrochemical fabrication techniques (e.g. including selective depositions, bulk depositions, etching operations and planarization operations) and post-deposition processes (e.g. selective etching operations and/or back filling operations).

Abstract: Coaxial and twisted pair conductive yarn structures reduce signal crosstalk between adjacent lines in woven electrical networks. A coaxial conductive yarn structure includes an inner conductive yarn having a plurality of conductive strands twisted together. An outer conductive yarn is wrapped around the inner conductive yarn. An insulating layer separates the inner and outer yarns. A twisted pair conductive yarn structure includes first and second conductive yarns, each including a plurality of conductive strands being twisted together. The first and second conductive yarns are twisted together to form a helical structure. In a woven electrical network, at least one conductor of adjacent conductive yarn structures is connected to ground to reduce signal crosstalk. Coaxial and twisted pair yarn structures may also be formed simultaneously with weaving or knitting the threads that make up the structures into a fabric.

Abstract: A base station in a mobile communication network, includes at least one transmission line for transmitting a radio frequency signal. Each transmission line includes a coupling hole. A two-port coupled line includes one or more coupling holes. Each transmission line and the coupled line are couplable to form a coupling by setting the coupling hole of the transmission line against the coupling hole of the two-port coupled line. The coupling enables a signal sample of the radio frequency signal to propagate from the transmission line to the two-port coupled line.

Abstract: RF and microwave radiation directing or controlling components are provided that may be monolithic, that may be formed from a plurality of electrodeposition operations and/or from a plurality of deposited layers of material, that may include switches, inductors, antennae, transmission lines, filters, and/or other active or passive components. Components may include non-radiation-entry and non-radiation-exit channels that are useful in separating sacrificial materials from structural materials. Preferred formation processes use electrochemical fabrication techniques (e.g. including selective depositions, bulk depositions, etching operations and planarization operations) and post-deposition processes (e.g. selective etching operations and/or back filling operations).

Abstract: RF and microwave radiation directing or controlling components are provided that may be monolithic, that may be formed from a plurality of electrodeposition operations and/or from a plurality of deposited layers of material, that may include switches, inductors, antennae, transmission lines, filters, hybrid couplers, antenna arrays and/or other active or passive components. Components may include non-radiation-entry and non-radiation-exit channels that are useful in separating sacrificial materials from structural materials. Preferred formation processes use electrochemical fabrication techniques (e.g. including selective depositions, bulk depositions, etching operations and planarization operations) and post-deposition processes (e.g. selective etching operations and/or back filling operations).

Abstract: In the present technique for transmitting and delaying radio frequency signal transmission, an RF delay filter (102) is provided with at least one high permittivity material coaxial delay element (104) with each having an input port (114) and an output port (116). Multiple coaxial delay elements are operably coupled by a quarter-wave microstrip transmission line (230) to offset any frequency mismatch at the band edges of the delay elements. A series of capacitors (126, 128) are also included at each port of the coaxial elements to compensate for any resultant parasitic inductance.

Abstract: The invention relates to an arrangement and method for combining electric signals. The arrangement comprises: an antenna element (270) for receiving first electric signals from the environment; a receiver cable (210) in connection with the antenna element (270) for carrying the first electric signals; at least one antenna feeder cable (212) for carrying second electric signals; a transmitting antenna (250) in connection with said at least one antenna feeder cable (212) for transmitting the second electric signals, and at least one cable coupler (120) in said receiver cable (210), in which the polarity of said at least one cable coupler (120) is reversed in order to induce a local leakage current. Said at least one cable coupler (120) is arranged next to said at least one antenna feeder cable (212) for coupling the first electric signals and the second electric signals to the receiver cable (210).

Abstract: A transmission line includes a signal conductor and at least one varactor diode capacitively coupled to the signal conductor. The transmission line's signal path delay is a function of its shunt capacitance, and the varactor's capacitance forms a part of the transmission line's shunt capacitance. The transmission line's signal path delay is adjusted by adjusting a control voltage across the varactor diode thereby to adjust the varactor diode's capacitance.

Abstract: A transmission line includes a signal conductor and at least one varactor diode capacitively coupled to the signal conductor. The transmission line's signal path delay is a function of its shunt capacitance, and the varactor's capacitance forms a part of the transmission line's shunt capacitance. The transmission line's signal path delay is adjusted by adjusting a control voltage across the varactor diode thereby to adjust the varactor diode's capacitance.

Abstract: A small in-band-flat-group-delay type dielectric filter having low-loss characteristics with a small amplitude deviation and uniform-group-delay frequency characteristics is obtained, which enables broad-band characteristics to be obtained easily. The in-band-flat-group-delay type dielectric filter includes a plurality of dielectric coaxial resonators, a coupling circuit comprising a combination of reactive elements, with which the dielectric coaxial resonators are coupled to one another, and input/output terminals connected to ends of the coupling circuit. The dielectric coaxial resonators coupled to the input/output terminals are allowed to have a different characteristic impedance from that of the inter-stage dielectric coaxial resonators.

Abstract: A left and right hemisphere independently adjustable azimuth antenna with a new method of electrically floating reflector device when used with the cooperating antenna array geometry, yields an modified directed radiated beam which can be actuated by means of a simple mechanical mechanism. The adjustment in the azimuth pattern is accomplished by means of moving the electrically floating reflector device in an arc around a line parallel to the axis of the antenna.

Abstract: A phased array antenna is disclosed with a new method of phase shifting device when used with the cooperating antenna array feed system structure, yields an adjustable electrically directed radiated beam that may be actuated by means of a simple mechanical mechanism. The phase shift is accomplished by mechanically moving the phase shift coupling device upwards or downwards along the parallel feed body between adjacent feed lines in cavities within the antenna housing.

Abstract: A stacked radio-frequency module is formed by stacking packages each storing MMICs and mounting another package upside down which stores a control circuit for controlling MMICs. The MMICs and control circuits are each sealed by a metal sealing lid within the cavity of each of the packages which are spatially completely separated from each other. Each of the pads for wiring paths for radio-frequency signals and for power supply/control signals and ground pads are provided within each package and at opposing surfaces of packages to be stacked with corresponding pads joined by a gold bump.

Abstract: A computer system for managing a computer network comprises a rack cabinet having a cabinet interior. A plurality of infrastructure connector assemblies are fixedly mounted on the rack cabinet in 1-U boundaries, each infrastructure connector assembly including a signal snap interface connector and a power snap interface connector. A plurality of compute elements are adapted to be slidably disposed within the cabinet interior of the rack cabinet in a stacked relationship, each compute element including at least one infrastructure connector assembly which releasably snap-interconnects with an associated infrastructure connector assembly mounted on the rack cabinet. A distributed power bay is disposed within the rack cabinet and provides central power for the computer system. A rack manager is disposed within the rack cabinet and includes the central video and I/O devices for the computer system.

Abstract: A left and right hemisphere independently adjustable azimuth antenna with a new method of electrically floating reflector device when used with the cooperating antenna array geometry, yields an modified directed radiated beam which can be actuated by means of a simple mechanical mechanism. The adjustment in the azimuth pattern is accomplished by means of moving the electrically floating reflector device in an arc around a line parallel to the axis of the antenna.

Abstract: A low-loss, phase stable, microwave transverse electromagnetic delay line having an increased lifetime and a reduced cost of manufacture. The microwave delay line includes a TEM transmission line having a central conductor, a dielectric material covering the length of the central conductor, and a solid outer conductor on which the dielectric-covered central conductor is wound. The outer conductor includes at least one guide formed on a surface thereof into which the dielectric-covered central conductor is disposed. The microwave delay line further includes two microwave connectors mounted at respective ends of the outer conductor and operatively coupled to corresponding ends of the central and outer conductors, and a metal cover configured to enclose the microwave delay line to prevent signal leakage and protect the microwave delay line from environmental damage.

Abstract: A signal-processing apparatus is capable of stably operating without regard to outside circumstances and miniaturizing. The signal-processing apparatus for shifting phase of a signal inputted thereto and attenuating the signal includes an input connector for inputting a signal; an output connector for outputting the signal; a rotation body to be rotated by the rotational force provided from the rotational force supplying means; a plurality of rotatable members respectively having a groove in peripheral portion, the rotatable members being coupled to peripheral portion of the rotation body so that the grooves communicate with each other; and a signal transmitting member for transmitting the inputted signal to the output connector, the signal transmitting member being located in the grooves and its both ends being respectively connected to the input and output connectors.

Abstract: A delay line component having merits of small physical size and small insertion loss in a radio frequency. The delay line component with coaxial cable structure includes a center conductor, a dielectric which surrounds the center conductor and an outer conductor which is formed outside the dielectric. The dielectric is made of a ceramic dielectric with a large dielectric constant.

Abstract: The invention is a mechanically or electro-mechanically driven phase shifter for radio frequencies. It is a device for phase shifting a signal propagating through a transmission line by moving a conductive construct between an active line and a ground plane of the transmission line. The conductive construct capacitively couples with either the active line and/or the ground plane, forming a capacitive shunt that reflects a significant part of the signal. The remaining portion of the signal is reflected at a terminated end of the transmission line, resulting in substantially no signal loss. The reflectance of the conductive constructs is determined by its capacitance to active line and ground, by its length, and by the step in the field-distribution at the interface between air-suspended and sledge-suspended sections.

Abstract: A left and right hemisphere independently adjustable azimuth antenna with a new method of electrically floating reflector device when used with the cooperating antenna array geometry, yields an modified directed radiated beam which can be actuated by means of a simple mechanical mechanism. The adjustment in the azimuth pattern is accomplished by means of moving the electrically floating reflector device in an arc around a line parallel to the axis of the antenna.

Abstract: An energy coupler (10) includes a movably adjustable energy coupling sleeve (16), and a coupling transmission line (18) operatively coupled to the movably adjustable energy coupling sleeve (16) to provide adjustable coefficient coupling with a transmission line (14), such as a coaxial transmission line. In one embodiment, the movably adjustable energy coupling sleeve (16) is configured to rotatably move to provide selectable energy coupling with the coaxial transmission line (14).

Abstract: A transmission line includes a high permeability conductor. The high permeability conductor increases the inductance-per-length of the transmission line to reduce the propagation velocity along the line. The high permeability conductor supplements a high dielectric constant insulator and high permeability core that increase the capacitance-per-length and inductance-per-length, respectively. In one embodiment, the transmission line is a microstrip line that is used in a matrix addressable display. In another embodiment, the transmission line is a coaxial line where the central conductor includes a center layer of nonmagnetic material and an outer layer of high permeability material. The high permeability conductor can be formed from a single layer of high permeability material or may be formed from a central layer of high conductivity material coated with an outer layer of a high permeability conductor.

Abstract: The invention relates to a summing member comprising in-connectors for receiving and combining different RF signals and an out-connector for supplying the combined signals further, at least one of the connectors being coaxial and comprising an elongated rod-like inner conductor, and an outer conductor surrounding the rod-like inner conductor. To provide an adjustable summing point, said at least one connector comprises a moveable part of low-loss dielectric material or ferrimagnetic material, the part surrounding at least the inner conductor and being moveable lengthwise of the inner conductor so as to adjust the phase angle of a wave reflecting from the connector.

Abstract: In a delay line, an inside conductor has straight inside conductors and curved inside conductors each of which is positioned between adjacent two ones of the straight inside conductors, each of the curved inside conductors is connected to the adjacent two ones of the straight inside conductors. A first outside conductor has an inside surface which defines a receiving ditch which receives the inside conductor. A second outside conductor covers an aperture of the receiving ditch.

Abstract: A variable differential phase shifter is provided. The device provides a continuous variation in phase between two outputs derived from a single input. The device is suitable for application at signal frequencies around 900 MHz, and is constructed in the form of an inner (38) and outer (37) sleeve capacitively coupled to an inner conductive rod (24) and outer conductive tube (26) respectively, wherein the inner (38), and outer (37) sleeves are connected to an input and can be moved in fixed relative relation thereby varying the phase relationship between the two outputs which are connected to the inner rod (24) and outer tube (26). A dielectric layer (25 and 27) may be provided around the inner rod (24) and outer tube (26). An unequal power division version of the device is provided for by the inclusion of a dielectric tube surrounding a portion of the inner rod.

Abstract: An orthogonal insertion phase tuning method for easily and efficiently tuning insertion phase without affecting other critical system parameters. The method is used generally with an amplifier network and includes attaching (130) at least two line runners in parallel at the input of the network. The insertion phase is then measured (140) to determine which runner most closely yields an acceptable and desired insertion phase. The remaining line runners are removed (150). An orthogonal relationship exists between insertion phase and input return loss in view of the tuning at a 50 ohm point with 50 ohm runners. This method insures only a minor change to input return loss while quickly and easily adjusting insertion phase.