6036results about "Waveguide type devices" patented technology

The invention discloses a multi-parameter measurement system and method for a power frequency non-partial discharge test transformer, and relates to the technical field of state monitoring of high-voltage test equipment and power equipment, and the system comprises a synchronous trigger unit which is connected to a power frequency voltage signal collection end and is used for detecting a zero crossing point of a power frequency voltage signal and generating a synchronous trigger signal, a power frequency period is divided into a plurality of sub-windows with equal phase angles. According to the multi-parameter measurement system and method for the power frequency non-partial discharge test transformer, the problem of phase mismatch of a power frequency signal and a high-frequency partial discharge signal in traditional multi-parameter measurement is effectively solved through a power frequency phase locked synchronous trigger mechanism and a dynamic noise suppression technology; and the positioning precision of the partial discharge source and the insulation defect diagnosis reliability are improved. The nanosecond-level time sequence error control is realized, and the power frequency coupling interference is inhibited while the details of the high-frequency pulse are kept by combining a phase correlation dynamic filtering strategy, so that the signal-to-noise ratio of the weak discharge signal is improved.

A phase shifter includes an active matrix transistor array. Each transistor of the active matrix transistor array is configured to control a voltage bias across a corresponding voltage-controlled capacitor of voltage-controlled capacitors to control a capacitance of the corresponding voltage-controlled capacitor. The phase shifter further includes signal channels. Each signal channel of the signal channels has a first end and a second end and is AC coupled at a point between the first end and the second end to one or more of the voltage-controlled capacitors. The phase shifter is configured to control a phase shift applied to each corresponding signal channel of the signal channels by setting the voltage bias across each of the one or more of the voltage-controlled capacitors coupled to the corresponding signal channel.

Radiating elements comprise a first dipole radiator that includes a first dipole arm and a second dipole arm, a second dipole radiator that includes a third dipole arm and a fourth dipole arm and first through fourth electromagnetic bandgap structures that are coupled to distal end portions of the respective first through fourth dipole arms.

A multilayer filter includes: an element body formed by laminating a plurality of insulator layers; a first inductor and a second inductor; and a wall portion disposed between the first inductor and the second inductor and grounded, wherein at least the second inductor is a vertical winding type inductor of which a winding axis extends in a direction orthogonal to a laminating direction in which the plurality of insulator layers are laminated, a penetrating portion penetrating in a facing direction in which the first inductor and the second inductor face each other is formed in the wall portion, and a size of the penetrating portion in the laminating direction is larger than a size of one insulator layer.

The invention provides a frequency tripling circulator and electronic equipment, and the frequency tripling circulator comprises a grounding plate, a composite substrate located above the grounding plate, and an upper metal layer located on the composite substrate, the composite substrate comprises a ceramic substrate, and the surface of the ceramic substrate is provided with a through inner ferrite; the outer side of the inner ferrite is sequentially sleeved with a plurality of annular outer ferrites, and the saturation magnetization intensity of the inner ferrite and the saturation magnetization intensity of the outer ferrites are sequentially reduced from inside to outside; the upper metal layer comprises a central junction, the central junction is provided with three end points, each end point is connected with one port of the circulator through a metal transmission path, and the side edge of the central junction is provided with a plurality of SSPP grooves between two adjacent end points to form SSPPs branches. The scheme can have the characteristics of miniaturization and broadband, thereby satisfying more application scenes.

The invention discloses a linear polarization in-band scattering reconfigurable radiation time-sharing regulation array antenna, which belongs to the technical field of antenna engineering, and comprises an antenna unit and a one-to-sixteen power divider, the antenna unit is connected with the one-to-sixteen power divider, and the antenna unit is connected with the one-to-sixteen power divider. The antenna unit comprises a first radiation patch, a first dielectric substrate, a second radiation patch, a second dielectric substrate, a feed coupling branch knot, a feed metal column, a third dielectric substrate, a perforated metal floor and a fourth dielectric substrate, and a first PIN tube, a second PIN tube, a feed transmission line, a direct current bias device, a reflective phase shifter and a low-pass filter are arranged at the bottom of the fourth dielectric substrate; the direct-current bias device is connected with the reflection type phase shifter and the feed transmission line through the low-pass filter, and the feed metal column sequentially penetrates through the third dielectric substrate, the perforated metal floor and the fourth dielectric substrate and is connected with the feed transmission line. According to the invention, the normal radiation efficiency of the antenna can be ensured, and the reconfigurability of antenna scattering can be effectively improved.

The invention belongs to the field of microwave communication, and relates to a double-frequency microstrip circulator based on multi-layer material nesting, and the circulator comprises a substrate, a magnetic conductive sheet, a high dielectric ceramic, a high dielectric constant ferrite ring, a high magnetic saturation ferrite, a circuit layer, a ceramic sheet, and a permanent magnet. The magnetic conductive sheet is arranged at the bottom of the base body, the high-dielectric ceramic is arranged on the magnetic conductive sheet, the high-dielectric-constant ferrite ring is annularly embedded in the high-dielectric-constant ceramic, and the high-magnetic-saturation ferrite is embedded in the high-dielectric-constant ferrite ring. The circuit layer is arranged on the substrate consisting of the high dielectric ceramic, the high dielectric constant ferrite ring and the high magnetic saturation ferrite, the ceramic chip is arranged on the circuit layer, and the permanent magnet is arranged on the ceramic chip. The overall size is small, weight is light, and reliability is high; the working frequency range is wide, through different transformations, the system is not easily detected by enemies, the confidentiality is high, and the anti-interference capability is strong; the method can be widely applied to the fields of mobile communication, satellite communication, radar detection, electronic countermeasures and the like.

The invention provides a composite ferrite circulator and electronic equipment, the composite ferrite circulator comprises a first bias magnetic circuit assembly, a ceramic gasket, a composite material substrate and a second bias magnetic circuit assembly which are sequentially arranged along a first direction, and one side, close to the ceramic gasket, of the composite material substrate is provided with a microstrip circuit; one side, close to the second bias magnetic circuit assembly, of the composite material substrate is provided with a grounding metal layer, the composite material substrate comprises a ceramic dielectric substrate, the surface of the ceramic dielectric substrate is provided with a cylindrical ferrite penetrating along the first direction, and the outer side of the cylindrical ferrite is sequentially sleeved with a plurality of circular ring ferrites; the saturation magnetization intensity of the cylindrical ferrite and the saturation magnetization intensity of the circular ferrite are sequentially reduced from inside to outside. According to the scheme, a higher relative bandwidth of the circulator can be realized, and the non-reciprocal transmission performance of the circulator is improved, so that the overall working performance of the electronic equipment is improved.

According to the capacitance-enhanced circular isolator structure provided by the invention, common-ground electric connection is realized by forming a ground metal boss structure, the distance between a grounding metal and a multi-path impedance adding structure is remarkably reduced, the ground capacitance of the multi-path impedance adding structure is remarkably improved, and meanwhile, bandwidth expansion is realized through capacitance-inductance cooperative tuning; a second-order LC matching network is adopted in three radio frequency ports, a slotting part of a matching capacitor can enable a matching inductor and the matching capacitor to share space to a certain extent, so that the size of the matching network is effectively reduced, a first-order LC matching network is adopted in an absorption port, impedance matching of the absorption port is realized under the condition that only a single resistor is added, and the impedance matching performance of the absorption port is improved. The size of the matching network can be reduced while a good absorption effect is achieved, and the size of the non-reciprocal central junction structure can be reduced; in addition, the first non-reciprocal central junction structure and the second non-reciprocal central junction structure are subjected to conjugate matching by adopting an L-C-L type matching network, so that good isolation performance is realized.

The invention provides a phase shifting device. The device comprises a first phase shift module, a second phase shift module and M combiners, M is an integer greater than 1, an input interface of the first phase shift module is used for receiving a carrier component of a first signal, and one of M output interfaces of the first phase shift module is connected with a first input interface of one of the M combiners; the input interface of the second phase shifting module is used for receiving a sideband component of the first signal, and one of the M output interfaces of the second phase shifting module is connected with the second input interface of one of the M combiners; the output interface of one of the M combiners is used for being connected with the input interface of one of the M antenna units in the antenna array. Compared with a traditional phase shifting device, the phase shifting device provided by the invention can improve the dispersion efficiency in a magnitude manner, and realizes small size or single-chip integration.

The invention discloses a suspended micro-strip high-power attenuator. The attenuator comprises a radiator, a radiating fin arranged on the bottom surface of the radiator, a mounting groove formed in the top surface of the radiator, at least two attenuation slices mounted in the mounting groove, and an elastic sheet arranged between the at least two attenuation slices and used for connecting the at least two attenuation slices in series, the first connector is arranged at the first end of the radiator and is electrically connected with the first ends of the at least two attenuation slices; and the second connector is arranged at the second end of the radiator and is electrically connected with the second ends of the at least two attenuation slices. According to the application, the attenuation slices with the attenuation circuit are connected in series through the connecting elastic sheets to obtain a required attenuation value, the radiator adopts a special structural design that the middle part is slotted, an attenuation network circuit formed by at least two attenuation slices is partially suspended, and the left side and the right side of the attenuation network circuit are clamped in the radiator mounting grooves; a part of heat of the attenuation piece is directly transmitted to the radiator for heat dissipation in a heat transmission mode, and the heat dissipation efficiency is improved.

The invention relates to a three-dimensional stacked high-power multi-channel dual-polarization airtight packaging T / R assembly, which comprises a power supply modulation layer, a multifunctional processing layer and a power amplifier low-noise amplifier layer which are sequentially stacked from bottom to top, and electrical interconnection among the three circuit layers and with the outside is realized by adopting the BGA solder balls. The three circuit layers adopt LTCC (Low Temperature Co-Fired Ceramic) or HTCC (High Temperature Coefficient Chip) to realize an integrated packaging structure with a cavity; the interior of the integrated structure is divided into a plurality of same independent cavities so as to accommodate circuits and structures of the channels; a signal transmission structure and a grounding through hole array are arranged in the cavity wall of the integrated structure, so that electrical interconnection, impedance matching and electromagnetic shielding inside and outside the package are realized; each cavity is sealed in an independent airtight mode through a metal cover plate. When necessary, a wave-absorbing material is added in the cavity to prevent self-excitation of the assembly. According to the invention, the product structure and the production process are simplified, the production efficiency, the packaging efficiency and the yield are improved, and the cost is reduced; the power capacity and the reliability of the product are improved, and the maintainability is good.

The invention belongs to the technical field of integrated circuit manufacturing and filters, and discloses a double-layer stacked microstrip band-pass filter. The filter comprises an upper metal layer, an upper substrate, a middle metal layer, a lower substrate and a lower metal layer which are sequentially arranged from top to bottom. A double-layer stacking method is adopted, the multi-order resonators are placed on the lower glass substrate, the upper metal layer, the side wall metalized through holes and the lower metal layer form a metal cavity structure, and the size of the filter is remarkably reduced; the multi-order resonator adopts a stepped impedance resonator structure, so that a low-frequency end zero point generated by high-order mode coupling can be effectively used, and better out-of-band rejection can be obtained; a ceramic substrate or a glass substrate with a relatively large dielectric constant is selected, so that the high-frequency loss of a passive device is remarkably reduced, and the quality factor is improved.

The present application provides a frequency selective surface structure, an antenna system, and a base station. The frequency selective surface structure comprises a frequency selective surface, a feed network, and a phase shifter. The frequency selective surface comprises a metal layer, the phase shifter is electrically connected to the feed network, and the phase shifter and the feed network are integrated into the metal layer of the frequency selective surface. When the phase shifter does not obstruct an antenna beam, the frequency selective surface structure may reduce transmission loss, and both coverage range and transmission quality of an antenna signal may be considered, solving the problem of difficult layout of a phase shifter in a multi-band integrated antenna system.

The embodiment of the invention provides a phase shifter and a base station antenna. The phase shifter comprises a fixed frame, a phase shifting strip line and a sliding medium. The fixed frame comprises a guide rail. The phase shift strip line is fixed on the guide rail. The sliding medium is in sliding connection with the guide rail and is separated from the phase-shifting strip line through the guide rail. The guide rail can guide the movement of the sliding medium relative to the phase-shifting strip line, thereby facilitating the improvement of the smoothness of the movement of the sliding medium relative to the phase-shifting strip line. As the sliding medium is separated from the phase-shifting strip line through the guide rail, and the sliding medium is not contacted with the phase-shifting strip line, friction between the sliding medium and the phase-shifting strip line is avoided in the process that the sliding medium moves relative to the phase-shifting strip line, the resistance of the sliding medium in the process of moving relative to the phase-shifting strip line is reduced, and the service life of the phase-shifting strip line is prolonged. The smoothness of the sliding medium relative to the phase-shifting strip line movement is further improved, the pulling force for driving the sliding medium relative to the phase-shifting strip line movement is reduced, and the requirement for a driving piece for driving the sliding medium relative to the phase-shifting strip line movement is lowered.

The invention provides a pilot frequency combiner and a multi-system access platform, the pilot frequency combiner comprises a first substrate waveguide resonant cavity, the first substrate waveguide resonant cavity is provided with at least two input feed line ends, the at least two input feed line ends are used for introducing excitation signals of different information sources, a second substrate waveguide resonant cavity is stacked on the first substrate waveguide resonant cavity, and the second substrate waveguide resonant cavity is used for feeding excitation signals of different information sources. The second substrate waveguide resonant cavity is provided with an output feeder end, and the second substrate waveguide resonant cavity and the first substrate waveguide resonant cavity share a cavity wall; the common cavity wall is provided with at least two through coupling holes, and the coupling holes are communicated with the first substrate waveguide resonant cavity and the second substrate waveguide resonant cavity, so that excitation signals input by the at least two input feeder line ends are transmitted to the second substrate waveguide resonant cavity, and are output to an external antenna radiation end after being combined by the output feeder line end. According to the pilot frequency combiner provided by the invention, the isolation degree of multi-band signals is relatively good, the frequency expansibility is also good, and the design flexibility is relatively high.

The invention provides a multiplexer and a detector. The multiplexer comprises a dielectric substrate, a connecting structure and a plurality of band-pass filters with different working frequencies. A conductive film layer is arranged on the plane of one side of the dielectric substrate and comprises a signal line and a grounding plate located on the side edge of the signal line. The connecting structure is arranged on the conductive film layer and comprises a main branch and a plurality of branches, and the main branch is connected with the branches and serves as an input port of the multiplexer. And the plurality of band-pass filters with different working frequencies are connected with the signal line and the grounding plate. Each band-pass filter comprises a first port and a second port, the first port is connected with the corresponding branch, and the second port serves as an output port of the multiplexer. The signal line, the grounding plate, the connecting structure and the band-pass filter can be located on the same side plane of the dielectric substrate, metal loss and radiation loss are reduced, and integration with other components of the detector is facilitated.

Dual-polarized antennas with ring balun excitation are disclosed. In certain embodiments, a dual-polarized antenna includes an antenna element and a ring balun for providing excitation of the antenna element. The ring balun includes conductive segments electrically connected in a ring, a first input port that receives a first single-ended RF signal of a first signal polarization, and a second input port that receives a second single-ended RF signal of a second signal polarization. The ring balun further includes a first output port and a second output port that collectively provide a first differential RF signal of the first signal polarization to the antenna element, and a third output port and a fourth output port that collectively provide a second differential RF signal of the second signal polarization to the antenna element.

The present disclosure relates to an antenna filter unit (AFU) (280) communicatively coupled to a Radio Frequency (RF) Front End Module (RFEM) (250). The AFU (280) comprises a plurality of cavity filters and a Multiple-Input-Multiple-Output (MIMO) antenna unit to enable beam forming to multiple users.

The invention provides a microwave program-controlled step attenuator. The microwave program-controlled step attenuator comprises a plurality of stages of step length switching units, the stepping length switching unit comprises a straight-through sheet which is fixedly arranged, at least two attenuation sheets which are arranged above the straight-through sheet at intervals, and a group of movable contact springs which are respectively positioned at two ends of the attenuation sheets; each movable contact spring is connected with a push rod which moves along the axis of the push rod and is used for driving the movable contact spring so that the inner end of the movable contact spring can make contact with the attenuation piece or the straight-through piece. The outer end of the movable contact spring is rotatably connected with one end of the fixed contact spring which is fixedly arranged through a rotating column, and the push rod is rotatably arranged around the rotating column corresponding to the movable contact spring connected with the push rod and used for driving the movable contact spring to rotate so that the inner end of the movable contact spring can be switched to correspond to different attenuation slices; and the other end of the fixed reed is rotationally connected with the outer end of the movable reed of the adjacent step length switching unit through a rotating column, or is vertically connected with the radio frequency connector. According to the scheme, multi-step length switching can be achieved, and good stability can be kept on the basis of achieving switching.

The invention discloses an attenuator unit, a clustered attenuator, an installation method, a microwave line and a quantum computer. The attenuator unit comprises an attenuation chip; one end of the attenuation chip is fixedly and electrically connected with the second inner conductor, and the other end of the second inner conductor is axially arranged back to the attenuation chip and is movably and electrically connected with a first inner conductor which is axially arranged; the other end of the attenuation chip is fixedly and electrically connected with a third inner conductor; the other end of the third inner conductor is arranged along the axial direction and is opposite to the attenuation chip; the other end of the third inner conductor is movably and electrically connected with an axially arranged fourth inner conductor; stress generated when the first inner conductor or the fourth inner conductor moves relative to the attenuation chip is prevented from being conducted to the attenuation chip; the two sides of the attenuation chip are respectively connected with the two sections of inner conductors which are coaxially arranged, and when the attenuator units are connected, the axial and radial positions of the attenuation chip are limited, so that relative rotation between the first connector and the second connector is prevented, and the attenuation chip is prevented from being damaged.

Provided herein are various enhancements for radio frequency (RF) horn antenna systems and arrays. An example apparatus includes a horn antenna array formed in a single workpiece of material comprising horn antenna elements with integrated feed networks. Each of the integrated feed networks comprise a waveguide interface flange having a port, and a filter element having a serpentine cavity coupled to the port that is at least partially formed by a base section, where a separation interface is established between the base section and an attachable cap that forms a remainder of the serpentine cavity. Each of the integrated feed networks also comprise a polarizer element having a waveguide cavity that couples between the serpentine cavity of the filter element and an associated horn antenna element that forms a signal aperture.

The present disclosure provides a phase shifter and an antenna. The phase shifter comprises a supporting assembly and a phase shift assembly, and the phase shift assembly comprises a first circuit board, a second circuit board, a first dividing plate, a second dividing plate, and a connecting piece. The first circuit board is provided with a first bonding pad, the second circuit board is provided with a second bonding pad, and the second circuit board and the first circuit board are stackedly provided. The first dividing plate is rotatably arranged on a side of the first circuit board which faces away from the second circuit board, and the second dividing plate is rotatably arranged on a side of the second circuit board which faces away from the first circuit board; the connecting piece is used for driving the first dividing plate and the second dividing plate to rotate, so as to adjust an antenna downtilt angle. The first circuit board and the second circuit board are located on a same side of the supporting assembly, and the first bonding pad is located on a side of the first circuit board which faces away from the supporting assembly, while the second bonding pad is located on a side of the second circuit board which faces away from the supporting assembly.

Disclosed are an antenna unit, an antenna array, a beam scanning method, a communication apparatus, and a computer-readable storage medium. The antenna unit includes a microstrip patch antenna and a phase shifter. The phase shifter includes: a microstrip line; a liquid crystal layer, arranged between the microstrip line and the microstrip patch antenna; and a metal layer, arranged between the liquid crystal layer and the microstrip patch antenna, where a first through hole is formed in the metal layer, and the output ends of the microstrip patch antenna and the microstrip line are coupled by means of the first through hole. The antenna unit capable of implementing beam phase change is simple in structure, low in manufacturing cost, and small in weight, can be manufactured into a planar structure, and is low in profile, easy to process, easy to downsize, convenient to carry, and convenient to integrate.

The embodiment of the invention provides a feed network, an antenna device, an active antenna unit and communication equipment, and the feed network controls the phase state of a phase shifter through light, does not need to use a control line, enables the feed network comprising the phase shifter to adopt an inverted microstrip structure, and reduces the insertion loss between a radio frequency channel and an antenna.

The technology described herein is directed towards a design and implementation of a unit cell for a reconfigurable intelligent surface / reflectarray by incorporating reconfigurability within a phase-delay element of the unit cell. Reconfigurability is directly incorporated into the unit cell via a variable length phase delay line element and PCM-based (e.g., mmWave) phase shifter that determines the unit cell's phase shift by changing the length of the phase delay line element. One implementation is directed to a monolithic integration of the element using chalcogenide materials as switch elements with pulsed actuation to switch among different available lengths that determine the length of the phase delay line element, resulting in a significant reduction in power consumption, area saving, and digital reconfigurability.

The utility model belongs to the technical field of radio frequency switches, and particularly relates to a single-pole double-throw normally-open radio frequency switch with a load. The utility model discloses a radio frequency connector, which comprises a common terminal, two radio frequency terminals, two loads in one-to-one correspondence with the radio frequency terminals, two radio frequency conduction members, two load conduction members, two driving assemblies, a reset mechanism and a control mechanism, wherein the reset mechanism enables the radio frequency conduction members and the load conduction members to recover a non-conduction state when no external force is applied; the control mechanism is electrically connected with the driving assemblies; the control state of the control mechanism includes that the two driving assemblies are not powered on or one driving assembly is powered on. Compared with the prior art, the technical scheme provided by the utility model has the following advantages: only the working states of two equipment signals need to be controlled, so that the power consumption is low and the control is simple under the same condition; signals of the two devices are initially located at the load terminal, for specific scene application, the problem that when the devices are in a no-load mismatch state, a conventional switch can only guarantee that a single-path load terminal cannot achieve the state is better solved, and application of a user can be better met.

The invention relates to the technical field of microwave ferrite devices, and discloses a double-section microstrip circulator which comprises a magnetic conductive sheet, a ferrite gyromagnet and a resistor, the ferrite gyromagnet and the resistor are arranged on the upper surface of the magnetic conductive sheet, a circuit is additionally arranged on the upper surface of the ferrite gyromagnet, and the circuit is connected with a microstrip filter; the ceramic chip is arranged on the upper surface of the circuit, and samarium cobalt is additionally arranged at the top end of the ceramic chip, according to the two-section microstrip circulator, through the arrangement of a combined structure of the magnetic conductive sheet, the ferrite gyromagnet, the circuit, the microstrip filter, the ceramic chip, the samarium cobalt and the resistor, the isolation degree can be effectively improved, and the requirement of a system for high isolation is met; the microstrip filter in circuit connection can improve the second harmonic characteristic and improve the problem that the second harmonic of a conventional microstrip circulator is poor; the ferrite gyromagnet is used as a gyromagnet material, and is combined with a double-section circuit, so that the characteristic of low emission loss can be realized, and the circulator is small in size, light in weight and relatively high in reliability due to the integral structural design.

A microstrip filter, comprising: a first substrate (11) and a second substrate (12) arranged opposite to each other, and a dielectric layer (13) located between the first substrate (11) and the second substrate (12). The first substrate (11) comprises: a first base (110), and a patch array provided on the side of the first base (110) close to the dielectric layer (13). The second substrate (12) comprises: a second base (120), a microstrip line (121) provided on the side of the second base (120) close to the dielectric layer (13), and a grounding layer (122) provided on the side of the second base (120) away from the microstrip line (121). The microstrip line (121) comprises: a major transmission line (1211) and at least one stub (1212), the orthographic projection of the stub (1212) of the microstrip line (121) and the orthographic projection of the patch array on the first base (110) overlapping each other. The dielectric layer (13) is configured to regulate the resonant frequency between the patch array and the microstrip line (121) when a voltage is applied to patches (111) in the patch array.

The invention relates to an SPnT surface-mounted microwave mechanical switch, and relates to the technical field of microwave switches, the microwave mechanical switch comprises a metal substrate, a plurality of micro coaxial transmission lines are arranged in the metal substrate, the length direction of the micro coaxial transmission lines is arranged along the thickness direction of the metal substrate, and the two ends of the micro coaxial transmission lines penetrate through the metal substrate; the radio frequency communication mechanism comprises a plurality of radio frequency reeds, one radio frequency reed is correspondingly arranged between every two adjacent micro coaxial transmission lines, the radio frequency reeds and the metal substrate are arranged in parallel at intervals, and linkage pieces are arranged on the radio frequency reeds; the electromagnetic driving mechanisms and the radio frequency reeds are arranged in a one-to-one correspondence mode, the electromagnetic driving mechanisms are connected with the corresponding linkage pieces, and the electromagnetic driving mechanisms are used for driving the radio frequency reeds to be in lap joint with the two corresponding micro-coaxial transmission lines. The microwave mechanical switch provided by the invention can be suitable for application scenes with relatively high requirements on high-frequency performance.