673 results about "High isolation" patented technology

The invention relates to an optically controllable switching device having a first and second line section, between which an optically controllable switch (T2) is inserted, and having a sensor element (SE). The optically controllable switch (T2) disconnects or connects depending on an optical switching signal (SB), whether the switch is "on" or "off". The sensor element (SE) comprises a carrier material (TM) with crystals comprising one or more paramagnetic centers (NV). When irradiated with pump radiation (LB), the sensor element (SE) emits fluorescent radiation (FL) which depends on the magnetic flux density B at the location of the sensor element (SE). A line current (I LTG) in the first line section of the line (LTG) generates a magnetic field with a flux density B which, with sufficient current strength, influences the fluorescent radiation (FL) from one or more paramagnetic centers (NV). The optically controllable switching device has first means (LWL1, PL1, LIV) for irradiating the one or more paramagnetic centers (NV) with pump radiation (LB) and second means (LWL2, F1, PD, LIV) for detecting and separating the fluorescent radiation (FL) and for detecting a measured value signal which depends on the intensity of the fluorescent radiation (FL) and / or on the phase shift of the modulation signal of the temporal profile of the intensity of the fluorescent radiation (FL). The optically controllable switching device has third means (LIV) for generating an optical switching signal (SB) and for controlling the state of the optically controllable switch (T2) using this optical switching signal (SB).The optical switching signal (SB) depends on the intensity of the fluorescence radiation (FL) and / or on the phase shift of the modulation signal of the temporal course of the intensity of the fluorescence radiation (FL).

The invention relates to a purely optical fuse with a first and second line section, between which an optically controllable switch (T2) is inserted, and with a sensor element (SE). The sensor element (SE) comprises a carrier material (TM) with crystals comprising one or more paramagnetic centers (NV). When irradiated with pump radiation (LB), the sensor element (SE) emits fluorescent radiation (FL) that depends on the magnetic flux density B at the location of the sensor element (SE). A line current (I LTG) in the first line section of the line (LTG) generates a magnetic field with a flux density B which, with sufficient current strength, influences the fluorescence radiation (FL) from one or more paramagnetic centers (NV). The optically controllable switching device has first means (LWL1, PL1, LIV) for irradiating the one or more paramagnetic centers (NV) with pump radiation (LB) and second means (LWL2, F1, PD, LIV) for detecting and separating the fluorescence radiation (FL) and for detecting measured values which depend on the intensity of the fluorescence radiation (FL) and / or on the phase shift of the modulation signal of the temporal progression of the intensity of the fluorescence radiation (FL). The purely optical fuse compares these measured values with intensity and / or phase shift threshold values.The optically controllable switching device has third means (LIV) for generating an optical switching signal (SB) depending on the comparison result and for controlling the state of the optically controllable switch (T2) with this optical switching signal (SB).

The invention provides a broadband low-noise amplifier based on a three-coil coupling transformer. The broadband low-noise amplifier comprises an input matching network, a common-source differential output driving stage amplifier, an inter-stage matching network, a common-source differential output power stage amplifier and an output matching network which are connected in sequence, broadband matching is realized by using the input matching network and the inter-stage matching network, and the effective transconductance of the transistor is improved; through the cross-coupled capacitors, the LNA gain and stability on a broadband are improved, better isolation is realized, and input and output are decoupled; due to the design of the grounding capacitor, the linearity of the LNA is improved; through the combination of the three-coil coupling transformer and the differential topology, output signals are superposed in the same direction at the output end, and noise is cancelled in the reverse direction at the output end, so that the thermal noise is greatly inhibited, the isolation is improved through the output matching network, the insertion loss is reduced, and the output matching performance is optimized.

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.

The invention discloses a low-profile and high-integration broadband dual-circularly-polarized transceiving common-aperture phased-array antenna, which adopts a multi-layer PCB (Printed Circuit Board) laminated structure, comprises a radiation patch layer, a quasi-rectangular patch layer, a metal reflection ground layer and a feed layer from top to bottom, and is combined with a metalized blind hole and a buried hole to form a complete coupling path. A U-shaped groove, a U-shaped metal strip and a C-shaped groove are integrated on a metal reflection ground, and a staggered groove is loaded on a quasi-rectangular patch, so that a K / Ka dual-band separated dual-coupled feed structure is realized, and dual circularly polarized radiation is obtained under the same aperture. The antenna is further provided with outer ring and inner ring plated-through hole arrays, the outer ring plated-through hole arrays are used for constructing an isolation area to improve the isolation degree between wavebands, and the inner ring plated-through hole arrays introduce a horizontal electric field component to improve the circular polarization purity and expand the axial ratio bandwidth. Wide impedance bandwidth and wide axial ratio bandwidth are realized in the K wave band and the Ka wave band, the isolation degree is high, the profile is low, the structure is compact, and the broadband phased array antenna is suitable for broadband phased array systems such as satellite communication terminals and mobile platforms.

The invention discloses a broadband single-pole double-throw switch MMIC, and belongs to the field of radio frequency / microwave. The switch adopts a symmetrical dual-channel structure, each channel comprises an input end series switch circuit, an output end series switch circuit and two parallel switch branches, channel switching is realized through two complementary control voltages, and impedance matching is carried out between the circuits by adopting microstrip lines. According to the technical scheme, switching tubes, resistors and inductors are utilized to form a circuit network, and a signal transmission path is optimized through the resonance effect of the inductors and switching tube cut-off capacitors in parallel branches in combination with a resistor parallel structure and a microstrip line matching technology. According to the invention, the performance of low insertion loss and high isolation in a broadband is achieved, the voltage standing wave ratio of an off-state output port is reduced, the port matching capability is improved, and an efficient and stable solution is provided for signal routing in a radio frequency system.

The invention belongs to the technical field of antennas, discloses a double-frequency common-caliber high-isolation phased-array antenna in a sparse array distribution mode, and mainly solves the problems that an existing double-frequency common-caliber array antenna sparse distribution optimization algorithm is large in calculation amount and low in design efficiency. According to the invention, through the thirteen-sided Einstein pattern, aperiodic tiling of an infinite plane can be realized through a certain splicing rule. A Ka-band high-frequency antenna and a K-band low-frequency antenna are placed at the gravity center of the Einstein pattern, and the high-frequency antenna and the low-frequency antenna are distributed in a staggered mode in a translation mode. The antenna unit adopts a cross symmetric array antenna, and high isolation of the dual-frequency antenna unit is realized by loading a coaxial filter at the bottom of the antenna unit. The rear end of each antenna unit is connected with a T / R assembly, and array beam scanning is realized by controlling the amplitude and phase of an input signal. The method is low in arrangement cost and high in design efficiency, and can be used for radar, communication, navigation and information confrontation.

The invention discloses a terahertz wave band composite beam RF MEMS switch with low driving voltage, and belongs to the field of radio frequency front-end devices. The device is composed of a direct current port metal block, a direct current bias line, a microstrip line matching structure, a composite beam MEMS switch, a composite beam middle conduction structure, a metal electrode of a composite beam, a silicon nitride insulating layer, a quartz glass substrate, a coplanar waveguide metal ground and a metal ground. The composite beam MEMS switch is formed by combining a silicon dioxide material clamped beam and a metal beam adsorbed below the silicon dioxide material clamped beam, a direct current port is connected to the anchor point position of the metal beam and a metal electrode through a direct current bias line, and different direct current voltages can be input through the direct current port to control the lifting state of the composite beam and the pull-down state of the composite beam adsorbed to the electrode. The two switches respectively correspond to an off state and an on state of the switch. The composite beam MEMS switch works below 140GHz, so that low driving voltage, low insertion loss and high isolation are realized. The reaction time of microsecond magnitude is achieved, destructive deformation is not prone to occurring, the structure is simple, and manufacturing is easy.

The invention discloses a high-isolation waveguide three-way power dividing and combining network structure which comprises a waveguide three-way power divider and a waveguide three-way power combiner, and an amplifier is connected between the waveguide three-way power divider and the waveguide three-way power combiner. The waveguide three-way power divider comprises a power divider upper waveguide cavity and a power divider lower waveguide cavity which are symmetrically arranged, and the power divider upper waveguide cavity and the power divider lower waveguide cavity are connected through screws. The waveguide three-path power combiner comprises a combiner upper waveguide cavity and a combiner lower waveguide cavity which are symmetrically arranged, and the combiner upper waveguide cavity and the combiner lower waveguide cavity are connected through screws. Microwave signals are distributed by the waveguide three-way power distributor, amplified by the amplifier, and then combined by the three-way power combiner. By constructing a brand-new three-path power division and synthesis network architecture, the problem of mutual load traction of amplifiers in a traditional non-isolated network is solved, and the stability of power synthesis is improved.

The invention discloses a single-pole double-throw switch with high power capacity, and relates to the technical field of microwave and millimeter waves, a first switch branch and a second switch branch which are symmetrically arranged respectively comprise a series branch and five parallel branches which are connected in series, and every two adjacent parallel branches are connected in series through a microstrip transmission line. The input end of the series branch is connected with a radio frequency input end, the five parallel branches comprise two switch parallel branches and three cascaded switch series-parallel branches connected in series between the two switch parallel branches, the input end of one switch parallel branch is connected with the output end of the series branch, and the output end of the other switch parallel branch is connected with the input end of the radio frequency input end. And the output of the other switch parallel branch is connected with the radio frequency output end. Each stage of series-parallel branch comprises two field effect transistor series units which are symmetrically arranged and connected at the same point, and equivalently four field effect transistors are connected in series on each stage of series-parallel branch, so that the anti-burnout capability of the switch can be improved, and the isolation degree is improved while the anti-burnout capability of the switch is improved.

The invention discloses an ultra-wideband high-linearity phased array switch, which comprises three ports, namely a transmitting end TX port, an antenna end ANT port and a receiving end RX port, and is characterized in that when a transmitting branch is switched on, a signal is transmitted from the TX port to the ANT port; when the receiving branch is conducted, a signal is transmitted from the ANT port to the RX port; the transmitting branch comprises a matching inductor L2, a transistor M5, a transistor M6, a transistor M1, a transistor M2 and a matching inductor L1, the receiving branch comprises a matching inductor L1, a transistor M3, a transistor M4, a transistor M7, a transistor M8 and a matching inductor L3, the proposed switch is designed by adopting a classic series-parallel structure, a deep N-well NMOS (N-channel Metal Oxide Semiconductor) transistor is used, and the matching inductor L1, the transistor M5, the transistor M6, the transistor M1, the transistor M2 and the matching inductor L3 are matched. The isolation degree of the transistor of the turn-off branch is improved by adopting a negative body bias technology, and meanwhile, the power processing capacity of the turn-off transistor is improved by adopting a negative voltage bias technology and a transistor stacking technology together.

The invention discloses a broadband high-isolation on-chip small-size power divider applied to 5G, and the power divider comprises two branches, and the first branch and the second branch are respectively provided with a series capacitor, an on-chip grounding spiral inductor, a transmission line, an isolation capacitor, an isolation inductor and an isolation resistor. The isolation capacitor, the isolation inductor and the isolation resistor are electrically connected between the first branch circuit and the second branch circuit, and the transmission line is less than a quarter wavelength. The spiral inductors on the ground lugs connected in parallel are used for improving even mode matching of the power divider, and the isolation capacitors and the isolation resistors are used for improving odd mode matching of the power divider. By adopting the transmission line with the wavelength smaller than 1 / 4, the power divider provided by the invention effectively reduces the circuit size and can realize two-path power synthesis. The technical problem that a power divider in the prior art is difficult to adapt to the high integration level of a 5G radio frequency system can be solved, and the provided power divider also has the characteristics of wide band and high isolation.

The invention relates to the technical field of antennas, in particular to a high-isolation double-frequency common-caliber miniaturized phased-array antenna which comprises a high-frequency-band linear polarization end-fire metal patch array structure, a low-frequency-band linear polarization end-fire metal patch array structure, a public metal reflection floor and a single-layer dielectric substrate. Radiation structures of the high-frequency-band linear polarization end-fire metal patch array structure and the low-frequency-band linear polarization end-fire metal patch array structure are formed by improved dipoles of microstrip balun feed with out-of-band rejection, so that linear polarization is achieved, and then the dipoles are fed through the improved microstrip balun with out-of-band radiation rejection. The suppression on high frequency is further deepened and the decoupling bandwidth is expanded; in addition, a decoupling structure is added between the adjacent common-frequency antennas to improve the isolation and radiation capability between the adjacent common-frequency antenna units, high isolation and wide beam coverage of the dual-frequency common-aperture phased-array antenna can be realized, the performance of the antenna is improved, and the dual-frequency common-aperture phased-array antenna is simple in process and low in cost.

The invention relates to a measuring head comprising an insulating body (IK), a first and second end fitting (EB1, EB2) with fastening means (BFE) for a line (LTG), and a sensor element (SE). The sensor element (SE) comprises a carrier material (TM), one or more crystals comprising paramagnetic centers (NV1), and a first and second optical waveguide (LWL1, LWL2), which may be identical to one another. The sensor element (SE) is mechanically connected to the first end fitting (EB1), which has fastening means (BFE) for fastening the line (LTG). The second end fitting (EB2) has means for fastening the first and / or second optical waveguide (LWL1, LWL2) to the first and / or second end fitting (EB2), respectively. The first and / or second optical waveguide (LWL1, LWL2) are guided within the insulating body (IK) in an electrically insulated manner from the first (EB1) to the second end fitting (EB2). The first end fitting (EB1).The first optical fiber (LWL1) and / or the second optical fiber (LWL2) are attached to the first end fitting (EB1). The second optical fiber (LWL2) detects fluorescent radiation (FL) from the sensor element (SE), while the first optical fiber (LWL1) transports pump radiation (LB) through the insulating body (IK) to the sensor element (SE) and irradiates the sensor element (SE) with pump radiation (LB). When irradiated with pump radiation (LB), the paramagnetic centers (NV1) of the sensor element (SE) emit fluorescent radiation (FL), which depends on the magnetic flux density B at the location of the sensor element (SE).

A device useful as a switch including an input waveguide coupled to an output waveguide; a first diode circuit integrated with the input waveguide at a first termination; a second diode circuit integrated with the output waveguide at a second termination; and wherein the biasing the diode circuits switches the switch between an off state and an on state and achieves high isolation in the off state by absorbing input power in, reflecting the input power from, and frequency multiplying the input power using the diodes in the diodes circuits when the input power is received from the input waveguide. In one embodiment, the switch is a tunable, solid-state SPST switch for Gband radar applications.

Purely optically controllable switching device for purely optical control of the current flow in a line (LTG), wherein the purely optically controllable switching device comprises a line (LTG) and where one line (LTG) comprises a first line section and wherein one line (LTG) includes a second line section that is different from the first line section and does not overlap, and wherein the purely optically controllable switching device comprises an optically controllable switch (T2) and wherein the purely optically controllable switching device comprises one or more purely optical sensor elements (SE) and wherein the optically controllable switch (T2) is positioned in the line (LTG) between the first line section and the second line section and wherein the optically controllable switch (T2) in an “on” state electrically connects the first line section of the line (LTG) with the second line section of the line (LTG) and wherein the optically controllable switch (T2) in an “off” state electrically separates the first line section of the line (LTG) from the second line section of the line (LTG) and wherein an optical switching signal (SB) determines which of these two states, "On" state or "Off" state, the optically controllable switch (T2) assumes, and wherein the respective purely optical sensor element (SE) of the one or more purely optical sensor elements (SE) comprises a respective carrier material (TM) with respective crystals comprising one or more respective paramagnetic centers (NV), and wherein the respective purely optical sensor element (SE) of the one or more purely optical sensor elements (SE) emits a respective fluorescence radiation (FL) when irradiated with respective pump radiation (LB), which depends on the respective magnetic flux density B at the respective location of the respective purely optical sensor element (SE), and wherein the respective purely optical sensor element (SE) of the one or more purely optical sensor elements (SE) is positioned relative to the first line section such that a line current (I LTG) in the first section of the line (LTG) a magnetic field with a respective flux density B is generated at the respective location of the respective purely optical sensor element (SE), such that, at sufficient current strength, one or more respective paramagnetic centers (NV) of the respective purely optical sensor element (SE) influence the respective fluorescence radiation (FL) of these one or more respective paramagnetic centers (NV) of the respective purely optical sensor element (SE) in a specific respective way with respect to the respective purely optical sensor element (SE), characterized by that the purely optically controllable switching device has first respective means (LWL1, PL1, LIV) assigned to the respective purely optical sensor element (SE) for irradiating the one or more respective paramagnetic centers (NV) of the respective purely optical sensor element (SE) with respective pump radiation and that the purely optically controllable switching device second means (LWL2, F1, PD, LIV) which are assigned to the respective purely optical sensor element (SE), - for detecting and separating the respective fluorescence radiation (FL) of the one or more respective paramagnetic centers (NV) of the respective purely optical sensor element (SE) and - for the acquisition of a respective measurement signal, which depends on the respective intensity of the respective fluorescence radiation (FL) of the respective paramagnetic centers (NV1) of the respective purely optical sensor element (SE) and / or on the respective phase shift Δt of the respective modulation signal of the respective temporal course of the respective intensity of the respective fluorescence radiation (FL) of the respective paramagnetic centers (NV1) of the respective purely optical sensor element (SE) relative to the respective modulation signal of the respective temporal course of the respective intensity of the respective pump radiation (LB) irradiating the respective paramagnetic centers (NV1) of the respective purely optical sensor element (SE), or relative to a signal associated with this respective signal (e.g., respective transmit signal S5) and / or its respective temporal course, - wherein the respective first means and respective second means may comprise common respective device parts (LWL1, LWL2) relating to a respective purely optical sensor element (SE) individually and / or relating to several purely optical sensor elements (SE) depending on the application, and that the purely optically controllable switching device has third means (LIV) to generate an optical switching signal (SB) and to control the state of the optically controllable switch (T2) with this optical switching signal (SB) and that the optical switching signal (SB, SB') is derived from one or more respective intensities of one or more respective fluorescence radiation (FL, FL') of the respective paramagnetic centers (NV1, NV1') of one or more purely optical sensor elements (SE, SE') and / or from one or more respective phase shifts Δt of one or more respective modulation signals of one or more respective time profiles of one or more respective intensities of one or more respective fluorescence radiation (FL, FL') relative to one or more respective modulation signals of one or more respective time profiles of one or more respective intensities of one or more respective pump radiation (LB, LB') or relative to one or more respective signals associated with one or more respective signals (e.g.,depends on the transmission signals S5, S5') and / or their respective temporal progressions.

The invention discloses a multichannel broadband receiver, and belongs to the technical field of microwave radio frequency and electronic control, the multichannel broadband receiver comprises a multichannel down-conversion assembly, a local oscillator power component, a power interface control panel and a VPX connector, the down-conversion assembly adopts a cavity-divided integrated structure, multiple identical radio frequency links are arranged in the same cavity in parallel, and the VPX connector is connected with the local oscillator power component. Down conversion from a 2-18GHz radio frequency signal to a 1.3-2.3 GHz intermediate frequency signal is realized through two-stage frequency mixing; the power supply interface control board takes an FPGA as a core, integrates the functions of multi-path power supply conversion, driving isolation, state monitoring and the like, and realizes channel gain power failure storage and calling, BIT self-inspection, nanosecond rapid turn-off and multi-parameter real-time monitoring through software and hardware cooperation. Through collaborative innovation of the structure, circuit and control, high integration, high channel consistency, high isolation and high intelligence of the multi-channel receiver are realized, and the multi-channel receiver is suitable for the fields of high-performance radars, electronic countermeasures and the like.

The invention, which relates to the antenna field, discloses a high-precision hybrid polarization microwave imaging antenna system comprising an H / V polarization independent radio frequency isolation network and a dielectric laminated orthogonal feed architecture. The H / V polarization independent radio frequency isolation network realizes isolation between H polarization and V polarization in the phased-array antenna and amplitude-phase consistency; the dielectric laminated orthogonal feed architecture is used for regulating and controlling near-field coupling energy distribution, so that H / V polarization field distribution is orthogonal to each other and shares the same phase center. According to the invention, an H / V polarization independent radio frequency isolation link and dielectric lamination orthogonal feed architecture is provided, the H / V polarization high isolation degree of a radio frequency link is guaranteed at a hardware level, and crosstalk among different polarization signals is effectively reduced; and meanwhile, through the flexible control time sequence design of hybrid polarization simultaneous emission, the high-efficiency integrated low-error delay T / R assembly and the common-caliber same-phase center antenna design, the amplitude and phase height consistency of H / V polarization signals is realized, and the imaging problem caused by amplitude and phase difference is avoided.

The invention belongs to the technical field of full-duplex communication, and particularly discloses a high-isolation full-duplex transceiver system and a control method.The system comprises a transmitting module, a receiving module and a full-duplex baseband module, the transmitting module comprises a power amplifier module and a first oscillator, the power amplifier module is connected with the full-duplex baseband module, and the first oscillator is connected with the receiving module; an intermediate frequency signal transmitted by the full duplex baseband module enters the power amplifier module, is mixed with a signal with a frequency f4 generated by the first oscillator, and is up-converted to a frequency f3; the receiving module comprises a second oscillator and a low-noise amplifier module, the second oscillator is connected with the low-noise amplifier module, a receiving antenna of the receiving module receives the signal and inputs the signal into the low-noise amplifier module for frequency mixing with the signal of the second oscillator, the signal is down-converted to frequency f2, and the signal enters the full-duplex baseband module for data processing. By adopting the technical scheme, based on each module, the influence of self-interference leaked by a transmitting link on a receiving link is completely avoided, and the design complexity of any system is not increased.

The invention provides an information processing method, device and equipment, and the information processing method comprises the steps: setting a signal coverage mode of at least one sensing base station; wherein the signal coverage mode comprises: performing communication signal coverage on the ground in a first area; communication signal and sensing signal coverage is carried out in a target air area of a second area, and sensing signal coverage is carried out on the ground of the second area; the distance between any position in the first area and the sensing base station is smaller than a first threshold value, and the distance between any position in the second area and the sensing base station is larger than a second threshold value. According to the scheme, the base station can be prevented from receiving near-end large signals, so that the high-isolation requirement is avoided; the requirement of the near end on the coverage height is avoided, so that the requirement on the vertical scanning range is reduced; on the basis, the scheme can be realized on the basis of the existing hardware equipment so as to support low-altitude perception.

The invention belongs to the technical field of wireless communication and radar, and discloses a dual-polarization and high-isolation thin Ku / Ka wave band shared aperture phased-array antenna which is composed of a dual-polarization Ku element and four single-polarization Ka elements. According to the low-profile design, the profile height of the antenna is only 2.35 mm, and the antenna is crucial to the application field with limited space. The Ka wave band element works in the frequency band of 32-36 GHz, the Ku wave band element covers 14-18 GHz, and a wide frequency range is provided for various communication and radar applications. High isolation: the dual-polarization port of the Ku wave band shows the isolation higher than 30dB in a scanning range of 0-60 degrees, and the minimum interference between polarization is ensured. In addition, the channel isolation between the Ku wave band and the Ka wave band exceeds 35dB in the Ku wave band and exceeds 18dB in the Ka wave band, so that the signal integrity can be kept and the crosstalk can be reduced.

The utility model provides a coupler and a radio frequency chip. The coupler provided by the utility model comprises a first microstrip line and a second microstrip line coupled with the first microstrip line, two ends of the first microstrip line are respectively provided with a radio frequency input port and an antenna output port, and two ends of the second microstrip line are respectively provided with an isolation port and a coupling output port; the coupler further comprises a first resonance circuit, a second resonance circuit and a first resistor. The first resonance circuit, the second resonance circuit and the first resistor are used for optimizing the isolation and directivity of the coupler. Compared with the prior art, the coupler provided by the utility model has the advantages of high isolation, good directivity and lower power fluctuation. On the basis of the original design of the coupler, a resonant circuit is directly added to broaden the frequency range. The microstrip line is used as a basic structure, so that high isolation, high directivity and low power fluctuation are realized under the conditions of low cost and low design complexity.

The invention discloses a broadband high-isolation millimeter wave dual-circular polarization multi-beam antenna, which comprises a 3D printing medium polarization grating lens and a millimeter wave dual-linear polarization antenna array, and is characterized in that the millimeter wave dual-linear polarization antenna array is located on a horizontal focal plane of the 3D printing medium polarization grating lens. Wherein the millimeter wave dual-line polarized antenna array adopts a folded medium integrated waveguide structure for feeding, so that high isolation is realized. A planarized millimeter wave dual-line polarization antenna array is used as a feed source antenna, and dual-line polarization-dual circular polarization conversion is realized through a 3D printing medium polarization grating lens; and the horizontal and vertical components of the + / -45-degree dual-linear polarized waves are equal in amplitude after passing through the polarized grating lens, and the phase difference is 90 degrees, so that dual-circular polarized waves are formed. The feed source array and the lens are arranged in a spaced mode, high gain and + / -45-degree scanning coverage are achieved, the design problem of a traditional dual-circular-polarization feed source is avoided, the complexity and cost of the system are remarkably reduced, and the deployment feasibility of a 5G / 6G millimeter wave terminal is improved.

The invention provides a switching amplitude consistency calibration method and system, and belongs to the technical field of microwave switching amplitude calibration, and the method comprises the steps: obtaining a calibration instruction, and measuring an initial radio frequency signal through a correction source; a power divider is used for carrying out signal distribution to obtain a radio-frequency signal with consistent amplitude, the radio-frequency signal is transmitted to a direction-finding matrix switch to obtain a signal subjected to matrix processing, a multi-channel receiver and an intermediate-frequency board card are used for processing to obtain multi-channel carrier amplitude information, and a channel amplitude difference and an error value of each channel are calculated; receiving actual amplitude information, and calculating a matrix error value by using a channel amplitude difference; calibrating the switching information according to the error value of each channel and the matrix error value to obtain an amplitude and phase consistency signal; according to the invention, the amplitude consistency and phase consistency of the switch system in a wide temperature range environment are improved, the insertion loss fluctuation of the switch system under a high isolation condition is reduced, the design and manufacturing processes are optimized, and the production efficiency of the switch system is improved.

The present invention provides a split switch structure, a radio frequency switch, an electronic product, and a base station. The split switch structure comprises a single-pole N-throw switch, wherein N is a natural number greater than or equal to 1. The single-pole N-throw switch comprises N switch paths; each switch path is opened and closed by turning on and off a switch transistor; and devices in the single-pole N-throw switch are arranged on at least two chips. Pads corresponding to contacts of the single-pole N-throw switch meet the isolation requirement in terms of distance. According to the split switch structure and the electronic product of the present invention, splitting devices of a single-pole multi-throw switch onto at least two chips reduces chip area and cost, and isolation is improved by means of flexible spatial arrangement, thereby achieving both high isolation and low cost. Therefore, the split switch structure and the electronic product are suitable for large-scale production and application.

The invention relates to a broadband high-gain 5G base station antenna based on a metasurface. The broadband high-gain 5G base station antenna comprises a system floor, a first low-frequency auxiliary unit, a second low-frequency auxiliary unit, a first high-frequency auxiliary unit, a second high-frequency auxiliary unit, a center unit and a feed network, the first low-frequency auxiliary unit, the second low-frequency auxiliary unit, the first high-frequency auxiliary unit and the second high-frequency auxiliary unit are distributed on the first surface of the system floor in an array manner and surround the central unit; the central unit comprises a metasurface layer and a dual-polarization unit, the dual-polarization unit is arranged on the first surface of the system floor, and the metasurface layer is fixed on the dual-polarization unit; the feed network is arranged on the second surface of the system floor and is connected with the first low-frequency auxiliary unit, the second low-frequency auxiliary unit, the first high-frequency auxiliary unit, the second high-frequency auxiliary unit and the central unit through coaxial lines. The antenna has the advantages of wide frequency band, high average gain, high aperture efficiency and high isolation.

The invention relates to a low-profile dual-polarization metasurface filtering antenna applied to Sub-6GHz, which comprises a first dielectric substrate, a metasurface is printed on the upper surface of the first dielectric substrate, a second dielectric substrate is downwards arranged on the upper surface of the first dielectric substrate, a metal floor is clamped between the first dielectric substrate and the second dielectric substrate, a first metalized through hole and a second metalized through hole are formed in the second dielectric substrate, and the first metalized through hole is communicated with the second metalized through hole. A first microstrip feeder line and a second microstrip feeder line are printed on the lower surface of the second dielectric substrate, and the first microstrip feeder line and the second microstrip feeder line intersect vertically. According to the invention, the metasurface structure is introduced, and by means of the metasurface structure, the antenna obtains a relatively wide impedance bandwidth 21.61% and a relatively high gain; under the condition that an extra filter circuit is not introduced, the low-frequency radiation zero point is introduced only by adding the n-shaped branch knot, and the radiation zero point frequency and out-of-band rejection can be adjusted by adjusting related parameters; according to the invention, while high isolation is realized, the cross polarization discrimination rate also exceeds 30dB; the antenna is simple in overall structure, low in manufacturing cost and easy to integrate.

The invention, which relates to the technical field of modern communication, discloses a metasurface-based high-gain low-profile dual-circularly polarized antenna comprising a first dielectric plate, a second dielectric plate arranged below the first dielectric plate, and a metasurface structure arranged above the first dielectric plate. Three rows and three columns of periodically arranged metasurface structures are arranged above the first dielectric plate, a multi-level cooperative working mechanism is constructed by combining 45-degree symmetrical composite gaps etched in a layer indirect floor and a microstrip feeder line which is orthogonally arranged on the lower layer, and the metasurface array realizes high-gain radiation by regulating and controlling the phase of electromagnetic waves. The composite slot structure efficiently converts microstrip line energy into an orthogonal degenerate mode through non-contact coupling, circular polarization purity is guaranteed, the axial ratio bandwidth is expanded to 24.2%, an orthogonal microstrip feeder line forms a 90-degree phase difference through accurately controlled size, high isolation and stable standing-wave ratio of double ports are guaranteed, and the antenna has a wide application prospect. And finally, dual-circular-polarization independent radiation is realized in a 5mm low-profile structure.

The invention discloses a 16-in-one high-power combiner working in a radio frequency band, and belongs to the technical field of fusion radio frequency heating. The invention comprises a coaxial input hard feeder line, a radial transmission line (RTL), a gradient impedance matching coaxial line and a coaxial output hard feeder line. The physical size is designed through theoretical calculation, electromagnetic field distribution is optimized through simulation, 16 radio-frequency signal input ports are designed through radial symmetric topology, a radial transmission line serves as a main synthesis path of radio-frequency signal source power, the power input by the 16 radio-frequency signal source ports is subjected to one-step efficient synthesis in the center of the radial transmission line, and the radio-frequency signal source power is obtained. And the 50-ohm characteristic impedance standard output of the synthesized radio frequency signal power is realized through an impedance matching technology. The sixteen-in-one power combiner designed by the invention has the characteristics of high synthesis efficiency, symmetrical structure, good amplitude and phase consistency, high isolation, low return loss, low reflection loss, simple design structure, easiness in manufacturing and the like.

The invention relates to an optically controllable switch (T2) with a sensor element (SE). The sensor element (SE) comprises a carrier material (TM) with crystals and paramagnetic centers (NV). When irradiated with pump radiation (LB), the sensor element (SE) emits fluorescent radiation (FL) that depends on the magnetic flux density B at the location of the sensor element (SE). A conduction current (I LTG ) in an inner line section (LTG +) generates a magnetic field with a flux density B such that, at sufficient current strength, the fluorescent radiation (FL) influences paramagnetic centers (NV1). Preferably, the optically controllable switch (T2) comprises a microelectronically manufactured semiconductor switch having the electronic switching component. Preferably, the respective sensor element (SE) is a respective microstructured sensor element (SE) on the surface of the microelectronically manufactured semiconductor switch and / or in the metallization stack of the microelectronically manufactured semiconductor switch.