31results about "Delay lines" patented technology

An inductor for use as a passive electronic component. The inductor has a hollow ceramic tube, a metal target rod located inside the hollow ceramic tube, a coil wound on the outside of the hollow ceramic tube and including a first end and a second end, and a first terminal engaging the first end of the coil and a second terminal engaging the second end of the coil. The metal target rod is fixed relative to the coil at a position so that the inductor has a zero temperature coefficient. Also provided is an LC resonant circuit including the inductor.

A system for efficiently generating or originating a tailored electromagnetic (EM) wave having a lower velocity than the speed of electromagnetic waves in free space includes a coaxial waveguide which extends linearly and a sinewave current generator. The coaxial waveguide includes a tubular outer body and a tailored emitting antenna disposed coaxially within the tubular outer body. The tubular outer body is formed of a first conductive material and defines a space therein which may be maintained as vacuum. The tailored emitting antenna is constructed physically and electrically by at least three phase-shifted sub-antennas connected in series, each of the sub-antennas being formed of a second conductive material which is less conductive than the first conductive material. The sinewave current generator generates multiple phase-shifted sinewave currents which are respectively input to the sub-antennas.

The present invention relates to a phase shifter having low loss in broadband, and a wireless communication device comprising same. The wireless communication device according to one embodiment comprises: a wireless communication module; a first antenna; a first transmission line for allowing the transmission of a signal between the wireless communication module and the first antenna; and a phase shifting element arranged in series on the first transmission line, wherein the phase shifting element is stacked in the vertical direction and can include a plurality of resonant unit elements electrically connected in parallel to one another.

An example apparatus includes: a first metal layer including: a first delay line having a surface area; and a second metal layer including: a second delay line having a surface area overlapping the surface area of the first delay line; and an insulating layer coupled between the first metal layer and the second metal layer.

To provide a phase shifter having a compact configuration capable of realizing continuous phase shift change.SOLUTION: A phase shifter includes an input line, a variable phase-shift circuit connected to the input line and having a line-forming layer made of vanadium dioxide, and an output line connected to the variable phase-shift circuit. The variable phase-shift circuit includes a plurality of heating elements arranged in an array along one surface of the line-forming layer, and a heating drive circuit arranged corresponding to each of the plurality of heating elements. Each of the plurality of heating elements is thermally connected to the line-forming layer.SELECTED DRAWING: Figure 1

The application discloses a kind of transmission circuit of negative group delay SSPP suitable for X waveband and control method thereof, belong to microwave engineering technical field, the transmission circuit includes: SSPP transmission line and nested double-ring resonator being arranged in the same side of dielectric substrate;SSPP transmission line is used to provide the slow-wave dispersion characteristic of passband edge;Nested double-ring resonator is laterally coupled with SSPP transmission line, including outer ring resonator and inner ring resonator, for resonant coupling;First coupling gap is formed between the outer ring resonator and SSPP transmission line;The inner ring resonator is nested in the inside of outer ring resonator, and second coupling gap is formed between the inner ring resonator and outer ring resonator;Wherein, the size parameters of the outer ring resonator, inner ring resonator, first coupling gap and second coupling gap are set according to the generation requirement of X waveband negative group delay response and impedance matching requirement, can generate negative group delay effect in high frequency band while still maintaining good impedance matching.

A slow-wave structure, a traveling-wave tube, and a communication apparatus are provided. The slow-wave structure includes a tube housing, a slow-wave line, and a plurality of support portions. The slow-wave line and the plurality of support portions are all located inside the tube housing, and the tube housing, the slow-wave line, and the plurality of support portions are integrally connected. The plurality of support portions are sequentially spaced apart along the slow-wave line. One end of each support portion is connected to the tube housing, and the other end is connected to the slow-wave line. This application can address processing and assembly errors caused by a discrete design, and simplifies assembly, thereby shortening an overall production cycle of the traveling-wave tube, and improving yields and consistency of the traveling-wave tube.

A slow wave structure, a traveling wave tube and a communication device, the slow wave structure comprises a tube shell, a slow wave line and a plurality of support parts, the slow wave line and the plurality of support parts are located in the tube shell, and the tube shell, the slow wave line and the plurality of support parts are connected into a whole; the plurality of supporting parts are sequentially distributed at intervals along the slow wave line; one end of each supporting part is connected with the tube shell, and the other end is connected with the slow-wave line. According to the invention, processing and assembling errors caused by a split type design can be improved, and assembling is simplified, so that the overall production period of the traveling wave tube is shortened, and the yield and consistency of the traveling wave tube are improved.

A slow-wave structure, a traveling-wave tube, and a communication apparatus are provided. The slow-wave structure includes a tube housing, a slow-wave line, and a plurality of support portions. The slow-wave line and the plurality of support portions are all located inside the tube housing, and the tube housing, the slow-wave line, and the plurality of support portions are integrally connected. The plurality of support portions are sequentially spaced apart along the slow-wave line. One end of each support portion is connected to the tube housing, and the other end is connected to the slow-wave line.

In one embodiment, an electromagnetic (EM) energy containment device includes a spherically symmetric resonant dielectric structure having a radial dimension R0 defined as R0=3 / π·λ0 / 2 and having first and second regions with different indices of refraction. The spherically symmetric resonant dielectric structure is configured to receive and to contain, for a selectable duration of time, an electromagnetic wave of a wavelength λ0, and can find applications in delay circuits for beam steering for example.

The invention relates to a tunable phase-shifting device (1) for a radio wave signal, comprising a first electrode structure (2) and a second electrode structure (5), each arranged on dielectric substrate layers (4, 6). The first electrode structure (2) and the second electrode structure (5) form a signal line for the radio wave signal extending in a signal transmission direction (8). A tuning layer (9) made of a tunable dielectric material (10) is arranged between the first electrode structure (2) and the second electrode structure. The first electrode structure (2) has several resonator strip elements (11), each with a strip element length measured in the signal transmission direction (8), which form a bandpass filter for the radio wave signal. The second electrode structure (5) is configured as a defective ground structure.The invention relates to a phased array antenna and a plate-shaped surface element with one or two phased array antennas.

An apparatus, including: a simulator configured to estimate signal propagation delays for a plurality of conductive trace structures, wherein the conductive trace structures include at least one tabbed routing structure; a compensator configured to determine trace-specific delay compensation values based on measured actual signal propagation delays obtained from PCB test coupons that include the tabbed routing structure and calculate compensated physical trace lengths using the trace-specific delay compensation values to achieve signal timing alignment; and a correlator configured to correlate estimated signal propagation delays with the measured actual signal propagation delays.

A slow-wave structure, a traveling-wave tube, and a communication apparatus are provided. The slow-wave structure includes a tube housing, a slow-wave line, and a plurality of support portions. The slow-wave line and the plurality of support portions are all located inside the tube housing, and the tube housing, the slow-wave line, and the plurality of support portions are integrally connected. The plurality of support portions are sequentially spaced apart along the slow-wave line. One end of each support portion is connected to the tube housing, and the other end is connected to the slow-wave line. This application can address processing and assembly errors caused by a discrete design, and simplifies assembly, thereby shortening an overall production cycle of the traveling-wave tube, and improving yields and consistency of the traveling-wave tube.

The present disclosure provides a device for signal delay. The device comprises: a frame of insulation material; multiple signal electrodes provided in the frame and electrically connected to each other in series; an input terminal electrically connected to a first of the multiple signal electrodes and configured to receive an input signal; and an output terminal electrically connected to a second of the multiple signal electrodes and configured to output an output signal that is delayed by the multiple signal electrodes with respect to the input signal, wherein at least one of the multiple signal electrodes is located at a different height than those of other signal electrodes with respect to a surface on which the device is to be mounted.

The invention discloses a negative group delay SSPP transmission circuit suitable for an X wave band and a control method thereof, and belongs to the technical field of microwave engineering. The transmission circuit comprises an SSPP transmission line and a nested double-ring resonator which are arranged on the same side of a dielectric substrate; the SSPP transmission line is used for providing a slow wave dispersion characteristic of a passband edge; the nested double-ring resonator is laterally coupled with the SSPP transmission line, comprises an outer ring resonator and an inner ring resonator, and is used for resonant coupling; a first coupling gap is formed between the outer ring resonator and the SSPP transmission line; the inner ring resonator is nested in the outer ring resonator, and a second coupling gap is formed between the inner ring resonator and the outer ring resonator; wherein the size parameters of the outer ring resonator, the inner ring resonator, the first coupling gap and the second coupling gap are set according to the generation requirement of the X-band negative group delay response and the impedance matching requirement, and good impedance matching can still be kept while the negative group delay effect is generated at the high frequency band.

An antenna array is electronically controlled by controlling the speed of transmission of RF signals in the feed lines of each radiator in the array. The speed of transmission is controlled using phase shifters that include a variable dielectric constant (VDC) material that causes the speed of transmission to vary. A control signal applied to the VDC material generates the required phase shift. The control signal is calculated in real time for each phase shifter for each control period to enable the main beam to track a target such as a satellite. The control signals are square wave signals and each control signal has a duty cycle or frequency that is specifically calculated to generate the required phase shift.

Phase delaying device configured to provide a frequency dependent phase delay within a frequency range, the phase delaying device comprising at least two consecutive inner conductors (102-104) and an outer conductor (105), the inner conductors being arranged to co-act with the outer conductor to form a transmission line. First and second inner conductors (102-103) are arranged with a longitudinal overlap between a connecting portion (102a) of the first inner conductor and a corresponding connecting portion (103a) of the second inner conductor to electrically couple the inner conductors. The connecting portions are spaced apart with separating material (103d) therebetween. The separating material selected from air, dielectric material, or a combination of air and dielectric material. The longitudinal overlap has a length of approximately λe / 4, where λe is a wavelength in said separating material at a frequency within said frequency range. A radio communication antenna and an antenna arrangement comprising such a phase delaying device are also provided.

This slow wave transmission line comprises a signal conductor (2) and a ground conductor (3) that are disposed with an insulator (1) therebetween. The ground conductor (3) includes a plurality of slits (3a) that intersect the extension direction of the signal conductor (2). The distance of a contour line OL from one end to the other end in an intersecting direction intersecting the extension direction of the signal conductor (2) of the slits (3a) in the ground conductor (3) in which the slits (3a) are formed is longer than the distance of a straight line connecting one end and the other end in the intersecting direction.

A high-speed switching N-bit path selection silicon-based integrated microwave photonic delay line includes a wavelength-tunable external cavity laser, an electro-optical modulator, an N-bit wavelength selective delay line, and a photodetector. The wavelength selective delay line consists of N+1 2×2 wavelength interleavers and N groups of delay and reference waveguide pairs. The output light of the external cavity laser is modulated by a microwave signal and input into the N-bit wavelength selective delay line. Finally, it is converted into a microwave signal output by a photodetector. By switching the laser wavelength, high-speed switching of the delay light path can be achieved, thereby achieving high-speed phase shifting of the microwave signal. In this solution, the wavelength selective delay line adopts a passive device design. Compared with traditional optical switching delay lines, it is easy to achieve low loss and does not require voltage regulation, and the overall system power consumption is low.

The invention relates to a method and apparatus to construct a waveguide for delay. An example apparatus includes: a first metal layer (520, 715, 910) including a first delay line (305, 615, 810) having a surface region; and a second metal layer (560, 725, 930) comprising a second delay line (320, 640, 820) having a surface region overlapping the surface region of the first delay line; and an insulating layer (540, 720, 920) coupled between the first metal layer and the second metal layer.

A transmission line. The transmission line includes a reference electrode. The transmission line also includes a stripline. The stripline meanders within a plane. The stripline has a nonplanar profile when viewed along a direction parallel to the plane.

In some examples, a variable inductor device includes a first planar loop comprising a first planar face and a material that supports electromagnetic coupling and a second planar loop comprising a second planar face and a material that supports electromagnetic coupling. The first planar loop is separable from the second planar loop to vary the inductance of the variable inductance device. In some examples, the first and second planar faces overlapping each other in a closed configuration of the device.

A high-frequency semiconductor device comprising a high-frequency semiconductor chip, including a high-frequency connector for transmitting or receiving high-frequency signals, and a chip package covering at least a portion of the high-frequency semiconductor chip. The chip package includes a high-frequency connector area for transmitting or receiving high-frequency signals located outside the high-frequency semiconductor device. The chip package includes a coplanar delay waveguide coupled between the high-frequency connector and the high-frequency connector area.

The application relates to a long-delay low-loss wideband delay line of a lack of ground open-circuit branch coupling strip, and belongs to the field of microwave systems. The long-delay low-loss wideband delay line comprises a metal microstrip line layer, a dielectric layer and a metal ground layer which are sequentially connected from top to bottom; the metal microstrip line layer comprises a fork structure composed of a U-shaped main microstrip line, a first U-shaped open-circuit branch and a second U-shaped open-circuit branch; a coupling strip is added in the fork structure, the coupling strip is grounded through a metallized via, and a complementary defect ground of the open-circuit branch is designed at a non-coplanar metal ground. Two or more long-delay low-loss wideband delay lines are connected in series to form a cascade delay line. The application works in a sub-6 frequency band range, has a relative bandwidth of 31.6%, a maximum delay time of 1.3 ns and an average transmission loss of 0.5 dB; a cascade delay line formed by connecting four long-delay low-loss wideband delay lines in series has a maximum delay time of 7.4 ns and an average transmission loss of less than 2.6 dB. The application effectively solves the mutual coupling eddy current effect between adjacent transmission lines.

The utility model provides a low-temperature co-fired ceramic delay line. The low-temperature co-fired ceramic delay line comprises a ceramic substrate, a time delay structure, an input electrode, an output electrode and a grounding electrode, the time delay structure is packaged in the ceramic substrate, the time delay structure comprises grounding layers and a time delay unit, the grounding layers are arranged on the upper side and the lower side of the time delay unit, a complete shielding environment is formed, external electromagnetic interference can be reduced, and time delay stability is improved. And the time delay unit is responsible for introducing required signal delay to ensure that the signal can be propagated in a low-loss manner according to a predetermined path. The input electrode and the output electrode are responsible for signal input and output respectively, one end of the input electrode is connected to the input end of the time delay unit, and the other end of the input electrode extends to the outer side of the ceramic substrate so as to be electrically connected with an external circuit conveniently. One end of the output electrode is connected to the output end of the time delay unit, and the other end extends out of the ceramic substrate. One end of the grounding electrode is connected to the grounding layer, and the other end extends out of the ceramic substrate so as to be electrically connected with an external circuit.

An antenna module, according to one embodiment of the present invention, comprises: a first radiation unit disposed on a substrate and having a current applied thereto through a first feed pattern; and a second radiation unit disposed on the substrate so as to be spaced from the first radiation unit, and having a current applied thereto through a second feed pattern, wherein respective signals radiated by the first radiation unit and the second radiation unit have mutually different phases.

Phase delaying device configured to provide a frequency dependent phase delay within a frequency range, the phase delaying device comprising at least two consecutive inner conductors (102-104) and an outer conductor (105), the inner conductors being arranged to co-act with the outer conductor to form a transmission line. First and second inner conductors (102-103) are arranged with a longitudinal overlap between a connecting portion (102a) of the first inner conductor and a corresponding connecting portion (103a) of the second inner conductor to electrically couple the inner conductors. The connecting portions are spaced apart with separating material (103d) therebetween. The separating material selected from air, dielectric material, or a combination of air and dielectric material. The longitudinal overlap has a length of approximately λe / 4, where λe is a wavelength in said separating material at a frequency within said frequency range. A radio communication antenna and an antenna arrangement comprising such a phase delaying device are also provided.

A radio-frequency antenna comprises a radiating element comprising a plurality n of D-shaped arms, each extending in a respective radial direction relative to a centre of the radiating element and substantially equally spaced around the centre, such that the radiating element is rotationally symmetric.

The utility model discloses a miniaturized three-in-one LTCC (Low Temperature Co-Fired Ceramic) delay line, which comprises a metal line delay unit laminated body, a metal ground electrode laminated body, a port outer electrode and a grounding outer electrode, the metal wire delay unit laminated bodies are formed by printing metal delay line units on a ceramic substrate layer, the metal ground electrode laminated bodies are formed by printing metal ground electrodes on the ceramic substrate layer, and a preset number of metal wire delay unit laminated bodies and the same number of metal ground electrode laminated bodies are laminated in a staggered manner; the metal delay line units of the metal line delay unit laminated body are respectively connected with the port external electrodes, and the metal ground electrodes of the metal ground electrode laminated body are respectively connected with the ground external electrodes. Through the technical scheme of the utility model, different delay amount outputs are realized, the delay time is adjustable in a certain range, the volume and weight of the delay line are effectively reduced, the loss of the delay line layer is reduced, and the reliability of the delay line is improved.

Antenna arrangement having an antenna element array including at least two antenna elements spaced apart in a vertical direction of the antenna arrangement, and an antenna feeding network configured to provide signals to said antenna element array to produce a beam. The antenna feeding network may include an input for connection to a radio base station unit, a plurality of outputs connected to a respective antenna element of the array of antenna elements, and a phase delaying arrangement arranged to delay the signals to one or more of the outputs to tilt the beam, wherein said frequency-dependent phase delaying arrangement is configured to delay said signals as a function of the frequency.