66 results about "High isolation" patented technology

An ultra-wideband end-fire antenna with a common aperture embedded in a metal carrier includes a metal cavity with a coaxial cable compartment on one side. A radiator module is connected to the bottom of the metal cavity via a radiator fixing slot. The radiator module includes a common aperture antenna substrate. A low-frequency radiator is printed on the side of the common aperture antenna substrate closer to the coaxial cable compartment, and a high-frequency radiator is printed on the side farther from the coaxial cable compartment. This invention utilizes a dual-band antenna in a common aperture design to enhance the channel capacity and anti-fading capability of the communication system. At the same time, by achieving the antenna's carrier conformal characteristics, high isolation, and miniaturization, it enriches the antenna's application scenarios and improves the overall performance of the communication system.

The application provides a high-isolation dual-polarized phased array TR assembly based on front and back layouts, and relates to the technical fields of microwave and phased array radar. The assembly comprises a multilayer printed board structure cavity, a first surface of the multilayer printed board structure cavity is provided with a radio frequency link of a first polarization channel, and a second surface is mirror-imaged with a radio frequency link of a second polarization channel; the first surface is opposite to the second surface; the first polarization channel and the second polarization channel are orthogonal polarization channels. The application fundamentally solves the polarization crosstalk problem caused by the traditional side-by-side layout, can improve the dual-polarization isolation to more than 80 dB, optimizes the space utilization and the heat dissipation path, and is particularly suitable for high-density and high-performance dual-polarized phased array antenna systems.

This invention discloses a wideband, high-isolation single-pole five-throw switch chip, comprising six ports, two power ports, five control ports, twenty microstrip lines, one capacitor C1, twenty-five switching transistors, twenty-five gate resistors, and five voltage control modules. The six ports are port 1, port 2, port 3, port 4, port 5, and port 6; port 1 is the RF input port; ports 2, 3, 4, 5, and 6 are output ports. The RF input and output ports are connected via the two power ports, five control ports, twenty microstrip lines, one capacitor C1, twenty-five switching transistors, twenty-five gate resistors, and five voltage control modules. Compared to existing single-pole five-throw switches, this invention is integrated on a single chip, offering the advantage of small size. The use of voltage control modules significantly reduces the number of power supply modules, facilitating application.

The application discloses an antenna pair with high isolation and low cross polarization level, which comprises a first radiation patch and a second radiation patch arranged as two half-circle ring structures, and the first radiation patch and the second radiation patch are connected through a first branch and a second branch; the first radiation patch and the second radiation patch work in a full-wave mode; the first branch and the second branch are arranged to overlap the resonant frequencies under differential and common mode excitation of two feed ports, and good matching is ensured, so that the isolation of the first radiation patch and the second radiation patch in the band is effectively improved; through the above arrangement, the mode Q value under differential and common mode excitation is close to the same, and the first radiation patch and the second radiation patch can further have high isolation in a wider frequency range. In addition, by introducing a first short pin group and a second short pin group, the polarization current in the x-axis direction can be effectively weakened, and the cross polarization level is reduced.

This invention belongs to the field of wireless communication technology and discloses a dual inverted "L" broadband low-coupling MIMO mobile phone antenna based on a parasitic grounded stub. This invention proposes a novel antenna structure. This design effectively solves the contradiction between broadband performance and high isolation while maintaining a simple and compact structure. The decoupling and broadband principle of this invention is as follows: an inverted L-shaped parasitic grounded stub with a bent end is introduced below the inner side of the radiating arm. This stub can generate a new coupling path, and the reverse current induced in it exactly cancels the coupling current received by the main radiating arm, achieving decoupling between ports. By slotting on the horizontal arm of the inverted L-shaped radiating stub, a new resonant point is generated in the antenna, effectively widening the antenna's operating bandwidth.

The embodiment of the application provides a magneto-electric monopole antenna unit, a magneto-electric monopole antenna array, an antenna and equipment, and belongs to the technical field of wireless communication. The antenna unit comprises a first dielectric substrate, a monopole radiator, a microstrip feed line, a metal reflector plate, a short-circuit metal column and two ground patches. It generates an electric monopole mode through the monopole radiator excitation, and generates a magnetic monopole mode through the short-circuit metal column, the ground patch and the reflector plate, and the two modes work together to realize wideband radiation and widen the beam width. The coupled currents on the two ground patches produce two pairs of opposite electric field components in the far field and offset each other, thereby realizing low cross polarization. The array composed of multiple units is loaded with a metasurface above, which significantly improves the port isolation by introducing a reflection path opposite in phase to the original coupling path. The application solves the technical problem that it is difficult to simultaneously realize wide-angle scanning, low cross polarization and high isolation in a wide frequency band.

This invention discloses an integrated high-harmonic circulator module, relating to the field of circulator technology. Key technical features include: an integrated frame with a circulator assembly cavity and a filter mounting area; an internal thread on the top of the circulator assembly cavity; a Y-junction circulator core component stacked within the assembly cavity; a high-harmonic elliptic function PCB filter fixedly mounted in the filter mounting area; a threaded cover plate screwed into the internal thread for axially pressing the Y-junction circulator core component; and three RF ports: a P1 input port, a P2 common port, and a P3 isolation port located on the sidewall of the metal cavity. This invention features low insertion loss, high isolation, excellent harmonic suppression capability, and high reliability, making it suitable for high-power, highly integrated microwave system applications.

The present invention provides an antenna configuration, transceiver configuration, and communication system for full-duplex transmission within the radio band that have high isolation characteristics between the transmitter and receiver within the same transceiver configuration and overcome the aforementioned drawbacks. [Solution] In the antenna device of the present invention, each antenna radiates and receives electromagnetic waves simultaneously, the plurality of antennas are arranged along a common virtual cylindrical jacket surrounding a common central axis of the antenna arrangement, the related centers of gravity of adjacent antennas are equidistant from each other, each antenna is electrically and / or magnetically connected to at least one first signal line of the transceiver arrangement and at least one second signal line of the transceiver arrangement, and in each antenna, at least one first signal line is oriented orthogonally with respect to at least one second signal line.

The application discloses a kind of three-frequency co-aperture multi-beam antenna design method, device and system, and the forbidden area of three-frequency band radiator and lamination constraint are extracted by electromagnetic field coupling simulation, and initial layout condition is established;Subsequently, space topology optimization is carried out to determine the radiator layout and feed network structure, then polarization direction and excitation phase are jointly optimized to realize frequency band matching, finally, beamforming parameters are generated by multi-objective optimization, and finally, a three-dimensional model of co-aperture integration is constructed, so as to realize the collaborative design and optimization of three-frequency band antenna in limited space.The application can realize the collaborative improvement of multi-band high isolation, low coupling interference and multi-beam dynamic shaping capability.

The invention provides a printed high-isolation multi-feed antenna. A multi-feed antenna apparatus includes a monopole antenna having an antenna portion, a first antenna extension having a first length extending from the antenna portion, a second antenna extension having a second length extending from the antenna portion, the second length being less than the first length; the slot antenna comprises a first slot with a third length and a second slot with a fourth length, and the fourth length is larger than the third length; a first antenna feeder coupled to the monopole antenna; a second antenna feeder coupled to the slot antenna; and a ground plane common to the monopole antenna and the slot antenna.

This invention discloses a miniaturized four-channel combining module based on the TE20 mode, belonging to the field of millimeter-wave power combining technology. It includes a layered upper cavity, a mezzanine, a lower cavity, and an RF unit. The RF unit comprises a TE10-TE20 waveguide distributor, two amplification branches, and a TE20-TE10 waveguide combiner. Each amplification branch includes a TE20 mode filter, a waveguide-microstrip transition, a pair of amplifier chips, and a microstrip-waveguide transition connected sequentially. The TE10-TE20 waveguide distributor and the TE20 mode filter are disposed in the upper and lower cavities. The waveguide-microstrip transition, the pair of amplifier chips, and the microstrip-waveguide transition are disposed on opposite sides of the mezzanine. The TE20-TE10 waveguide combiner is disposed in the upper cavity, the mezzanine, and the lower cavity. This invention utilizes a high-isolation waveguide distributor / combiner to improve branch isolation, shorten the combining path, and has a compact overall structure with advantages such as wide bandwidth, high isolation, high combining efficiency, and miniaturization.

The application discloses a kind of based on double-ridge substrate integrated waveguide and microstrip monopole antenna feed structure multiplexing co-boresight antenna, including double-ridge substrate integrated waveguide, surface plasmon polariton structure, Vivaldi radiator, metal grid array and integrated coaxial feed port, antenna uses multilayer stacking structure, surface plasmon polariton structure works as monopole in microwave frequency band, and high frequency and metal grid array jointly constitute metasurface lens;Vivaldi radiator is fed by double-ridge substrate integrated waveguide, for high-frequency end emission radiation;Two frequency bands are excited in orthogonal mode by integrated coaxial port and waveguide port respectively.The application is suitable for 5G / 6G base station, satellite communication and the like system, and has the characteristics of wide bandwidth, high isolation and structure multiplexing under compact profile.

This invention provides a foldable device and a laptop computer. The radiation enhancement device includes: a hinge, a top cover, a base, an antenna, and a radiating slot area. The top cover and the base are rotatably connected via the hinge. A connection gap exists between the hinge and the base. The antenna is disposed at the connection between the hinge and the top cover. A radiating slot area is provided on the base at the antenna projection position. The radiating slot area includes multiple radiating slots, which are used to collect and re-radiate the energy emitted by the antenna. The radiating slots are connected to the connection gap to form a secondary radiation system, thereby achieving the collection and transfer of radiated energy, effectively reducing mutual interference between the two antennas, and improving isolation. Furthermore, this embodiment also provides a virtual feed point at the edge of the connecting slot within the radiating slot area. The virtual feed point works collaboratively with the radiating slot area to optimize antenna performance and improve radiation efficiency.

This application discloses a three-dimensional ultra-wideband power divider, belonging to the field of radio frequency communication technology. It includes an input port, a strongly coupled line unit, a weakly coupled line unit, a first output port, and a second output port. The input port, strongly coupled line unit, and weakly coupled line unit are connected sequentially. The first terminal of the second end of the weakly coupled line unit is connected to the first output port, and the second terminal of the second end of the weakly coupled line unit is connected to the second output port. The weakly coupled line unit includes any number of coupling lines and multiple first resistors, with the multiple first resistors bridging between two coupling lines of the weakly coupled line unit. The strongly coupled line unit is a three-dimensional integrated vertical substrate circuit structure. This application overcomes the contradiction between ultra-wideband, high isolation, low loss, and mass production through a three-dimensional integrated structure, gradually changing coupling lines, and a multi-level bridging resistor network, providing a high-performance power divider solution for high-frequency communication systems.

The application discloses a miniaturized high-isolation receiving array applied to GNSS and belongs to the technical field of antennas. The miniaturized high-isolation receiving array comprises an antenna unit and a cross-shaped electron bandgap structure, and the antenna unit is arranged in a right angle of the structure. The antenna unit is surrounded by three dielectric substrates to form a closed cuboid air cavity, a second substrate is provided with a reflecting ground, and a third substrate is covered with a bent gable-shaped metal side wall, so that left-handed or right-handed circular polarization can be realized; and a first substrate is provided with an open ring-shaped dipole arm. The cross-shaped electron bandgap structure comprises a mushroom-shaped structure, a cross-shaped metal reflecting ground and a cross-shaped dielectric block, and a top metal patch of the mushroom-shaped structure is connected with the metal reflecting ground through a metal column. The miniaturized high-isolation receiving array adopts high dielectric constant substrates to realize miniaturization, the metal side wall is connected with the reflecting ground to improve the radiation effect, the size of the dipole arm and the opening are adjusted to form circular polarization radiation, and the units are sequentially rotated to form an array and the mushroom-shaped structure is loaded to realize high isolation.

This invention relates to the field of weak current detection technology. Microcurrent detection technology is susceptible to circuit noise, environmental interference, and switching delays. Current range switching relies on software processes, which carries risks of sampling delay, judgment lag, and program crashes. This invention provides an adaptive threshold microampere-level current sampling network structure and its control method. Several parallel voltage acquisition and amplification branches are connected to the microcurrent to be measured. Range switching is achieved using logic processing control circuits and switching units. A closed-loop feedback control circuit is formed through latches and NOT gates to avoid logic oscillations during switching, improving the stability of the detection process. Optical coupler control ensures that only one voltage acquisition and amplification branch is allowed to conduct at any given time. The high isolation characteristics of the optocoupler effectively suppress leakage current in microcurrent measurement and avoid mutual interference between resistors of different branches, significantly reducing thermal noise in the sampling circuit and improving sampling accuracy and signal-to-noise ratio.

The utility model discloses a miniaturized high isolation degree coupler relates to the field of coupler, including the casing and the magnetic core, the lateral wall of casing adopts recessed structure to set up, the magnetic core sets up at the recessed position department of casing's lateral wall, the lateral wall of casing and be located the recessed position department is equipped with the protection isolation cover that will the magnetic core block, the protection isolation cover includes the upper cover body and lower cover body of magnetic adsorption setting, the inside of upper cover body and the inside of lower cover body all are equipped with the shielding layer. The utility model discloses have high isolation degree structure, avoid the interference that the outside world's electromagnetism causes to the magnetic core, avoid signal crosstalk and the phenomenon of error code simultaneously, thereby make the coupler can be accurately detected, in addition, have good heat conduction performance, improve the stability of coupler use.

The application belongs to the technical field of radio frequency microwave circuits, and particularly discloses a two-path multi-stage power amplifier with high isolation and strong out-of-band suppression. The application comprises an improved filtering power distribution module and an improved filtering power synthesis module which are of the same structure but are reversely arranged, and a first multi-stage amplification module and a second multi-stage amplification module which are of the same structure; the first multi-stage amplification module comprises an input matching bias fusion module, a first transistor, a multi-frequency point matching bias fusion module, a second transistor, a multi-frequency point matching bias fusion module, a third transistor and an output matching bias fusion module which are connected in sequence. The application can effectively suppress out-of-band harmonics, realize high power output and high efficiency within a high frequency bandwidth, and effectively reduce the area of the overall circuit structure. The application can be widely applied to high-performance radio frequency front-end systems.

This invention discloses a high-isolation, low-profile, miniaturized omnidirectional MIMO antenna based on parasitic stubs, belonging to the field of antennas. The antenna has a centrally symmetric structure, consisting of two irregularly shaped PIFA antenna elements and an "S"-shaped parasitic stub. The irregular radiating surface of the irregularly shaped PIFA antenna elements is obtained by chamfering a rectangular radiating surface, and the chamfer creates a gap between the irregular radiating surfaces of the two irregularly shaped PIFA antenna elements. The "S"-shaped parasitic stub is arranged parallel to the metal ground plane and the irregularly shaped radiating surface, with the oblique stub in the middle parallel to the chamfered edge of the irregularly shaped radiating surface. This invention, by chamfering the radiating surface and loading an "S"-shaped parasitic stub, suppresses the coupling of the binary PIFA array, improves the isolation of the binary PIFA array, and ensures the reliability of the MIMO system.

The application relates to the technical field of module packaging, and discloses a high-isolation structure of an internal power supply of an SIP module and a manufacturing method thereof, which comprises a composite integrated substrate, physical isolation and electromagnetic shielding are realized through an insulating isolation groove arranged in the composite integrated substrate, and the composite integrated substrate is divided into a plurality of independent electrical islands according to the division area; the integrated power supply isolation filtering system formed by the closed electrical island, the composite damping filtering network and the distributed fan-shaped capacitor array is constructed in the composite integrated substrate, the isolation stability, the high-frequency noise suppression capability, the signal transmission quality and the space integration utilization rate of the multi-path power supply of the SIP module are improved, the overall structural stability and the environmental adaptability of the module are optimized, and the overall working reliability and the service performance of the high-integration micro SIP power supply module are effectively improved.

The application discloses a reconfigurable transreflective unit, a reconfigurable transreflective array antenna and a vehicle, and relates to the technical field of antennas. The second dielectric substrate in the unit is oppositely arranged with the first dielectric substrate along the X direction. The side, away from the first dielectric substrate, of the second dielectric substrate is provided with a transmissive patch. The side, away from the second dielectric substrate, of the first dielectric substrate is provided with a reflective patch electrically connected with the transmissive patch. Two diodes are arranged on the reflective patch. By controlling the conduction and the cut-off of the two diodes, the reconfigurable transreflective unit can be switched between the reflection mode and the transmission mode. In the reflection mode, the reflective patch is used for reflecting the incident X-polarized electromagnetic wave to the space where the feed source is located. In the transmission mode, the transmissive patch is used for converting the incident X-polarized electromagnetic wave into Y-polarized electromagnetic wave and transmitting the Y-polarized electromagnetic wave to the space opposite to the feed source. The application can solve the problem of high isolation and large-angle low-loss scanning under the severe vehicle environment.

The application provides a high-isolation transceiving simultaneous frequency conversion assembly, which comprises independently controlled SC frequency band receiving and transmitting links, X frequency band receiving and transmitting links, an SC frequency band transmitting intermediate frequency input port (J2) connected with the SC frequency band receiving and transmitting links, an SC frequency band receiving intermediate frequency output port (J1), an SC frequency band receiving radio frequency input port (J5), an SC frequency band transmitting radio frequency output port (J6), an X frequency band transmitting intermediate frequency input port (J3) connected with the X frequency band receiving and transmitting links, an X frequency band receiving intermediate frequency output port (J4), an X frequency band receiving radio frequency input port (J8), an X frequency band transmitting radio frequency output port (J7) and an interface (J9) for realizing connection of a low-frequency connector and an interference technology unit. The high-isolation transceiving simultaneous frequency conversion assembly can solve the problem of high-isolation transceiving simultaneity and achieve the goal of miniaturization.

The utility model relates to a kind of high off ratio multi-channel magneto-optical switch, including 1×N magneto-optical switch;N=2n, n is the integer greater than or equal to 2;1×N magneto-optical switch is constituted by a 1×2 magneto-optical switch series connection;The input end of 1×N magneto-optical switch is equipped with an input collimator;The output end of 1×N magneto-optical switch is respectively connected with N output collimators;1×1 magneto-optical switch is equipped between the output end of 1×N magneto-optical switch and output collimator;The utility model is by setting 1×1 magneto-optical switch at each output collimator, 1×1 magneto-optical switch is not only used for the output of signal, also constitutes isolator device, effectively promotes the off ratio of any channel, so that the off ratio of each channel of 1×N magneto-optical switch is greater than 40dB, and the structure also realizes the demand of high isolation degree;The series connection structure of 1×2 magneto-optical switch can effectively component multi-channel magneto-optical switch, simplify structure.

This invention provides an LTCC multilayer duplexer, comprising a ceramic substrate, a connection port disposed on the bottom surface of the ceramic substrate, and a circuit structure layer disposed inside the ceramic substrate. It employs a lumped parameter model design to achieve the specific electrical performance requirements of a novel, miniaturized, wideband, low-insertion-loss LTCC duplexer. The low-frequency path utilizes a second-order low-pass filter. In the high-frequency band, a bridging capacitor is introduced to create a transmission zero in the low-frequency passband, enhancing the high-frequency passband's low-frequency suppression capability. Furthermore, a higher-order approach is used to simply and effectively broaden the high-frequency passband range. This invention not only effectively achieves frequency division between low-frequency and high-frequency signals and effectively broadens the high-frequency passband bandwidth, but also possesses advantages such as miniaturization, low loss, high suppression, high isolation, high reliability, low cost, excellent consistency, and suitability for large-scale production. Additionally, it adapts to the new trend of electronic component integration and miniaturization.

The present invention provides a split switch structure, a radio frequency switch, an electronic product, and a base station. The split switch structure includes: a single pole N throw switch, where N is a natural number greater than or equal to 1; the single pole N throw switch includes N switch paths, each switch path is switched through turn-on and turn-off of a switching transistor, and devices of the single pole N throw switch are at least arranged on two chips; and pads corresponding to contacts of the single pole N throw switch satisfy isolation requirements in terms of distance. In 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 through flexible spatial arrangement, thereby achieving both high isolation and low cost, thus making it suitable for large-scale production and application.

The application provides an optical diode device based on photothermal driving perovskite phase change and a preparation method thereof. The application can realize high-transmittance difference regulation by optimizing perovskite precursor concentration and spin coating parameters, realizes a transmittance difference of 58% at a wavelength of 550 nm, and provides a core performance basis for optical isolation; the threshold power (Pknee) of the optical isolation zone can be accurately controlled from 500 mW to 300 mW by adjusting the concentration of the photothermal material, and different light intensity scenes can be adapted; the transmittance retention rate is greater than 84% after 27 cold and hot cycles, and the application has strong environmental stability, solving the problem that perovskite materials are prone to degradation. The optical diode device based on photothermal driving perovskite phase change integrates the photothermal material and the phase change perovskite innovatively, avoids solvent erosion through a double-sided independent structure, has high isolation (5.7 dB), low insertion loss (3.9 dB) and simple process, and has a wide application prospect.

This invention is a low-profile, highly integrated 5G antenna module, comprising a metal ground plane, a main PCB board, a GPS antenna positioned at the center of the main PCB board, and several groups of 5G antennas and Wi-Fi antennas arranged in a circle around the GPS antenna. The 5G antennas are spaced at a certain angle and are arranged in a circle adjacent to the GPS antenna; the Wi-Fi antennas are positioned between the 5G antennas and arranged in a circle away from the GPS antenna. This invention achieves an antenna height of less than 40mm through radiator folding, grounding optimization, a ring layout, and isolation design. Under a large-area metal ground plane, the 5G antenna achieves a full-band efficiency of over 40%, maintains high isolation even with multiple antennas close together, and supports full-band LTE, 5G NR, and FR1 band antennas with a very low antenna height. It also supports high-speed Wi-Fi and GPS tri-band positioning, making it highly suitable for intelligent connected vehicle antenna scenarios, offering advantages such as low profile, high integration, high performance, and high isolation.

This invention discloses an ultra-wideband V-band deployable arm rotary joint and its signal transmission method, relating to the field of microwave communication. The rotary joint includes a first rotating part and a second rotating part coaxially rotated together via bearings, forming a microwave transmission cavity connected along an axis. First and second microwave transmission components are symmetrically arranged within the cavity. Each component includes an input / output rectangular waveguide port, an orthogonal mode coupler, a cross-shaped gate structure, and a phase shifter. The orthogonal mode coupler enables the mutual conversion between linearly polarized and mixed-polarized waves, the cross-shaped gate structure enables power splitting and combining, and the phase shifter generates a 90° phase difference to generate or combine circularly polarized waves. This invention achieves ultra-wideband, low insertion loss, high isolation, and independent dual-polarization dual-channel transmission, suitable for single deployment of satellite deployable arms, and solves the problems of narrow bandwidth, few channels, and poor stability in existing rotary joints.

This application relates to the field of radio frequency microwave circuit technology and discloses a Ka-band waveguide-microstrip triode, comprising a first rectangular waveguide, a second rectangular waveguide, a first circuit fabricated on a dielectric substrate, and a pair of second circuits. This application utilizes the cooperation of the first rectangular waveguide, the second rectangular waveguide, the dielectric substrate, the first circuit, and the second circuit. A microstrip probe leads out a microstrip line from the wide side of the first rectangular waveguide, and two semi-circular circuits lead out microstrip lines from the two narrow sides of the first rectangular waveguide, respectively. It employs a hybrid circuit approach with rectangular waveguide input and microstrip line output, resulting in a compact structure. While achieving high isolation, low insertion loss, and excellent out-of-band suppression, it also facilitates integration with other circuits when expanding circuit functionality, meeting the usage requirements of a Ka-band waveguide-microstrip triode.

This invention discloses a W-band phased array, belonging to the field of phased array radar technology, comprising: a low-temperature co-fired ceramic substrate package for realizing the transceiver conversion of W-band radio frequency signals; a W-band array antenna for receiving and transmitting W-band radio frequency signals; a thermal-hermetic composite interface stacked structure for realizing heat conduction, hermetic welding, and structural locking; a receiving link for amplifying the W-band radio frequency signal with low noise via a bidirectional amplifier chip, modulating its amplitude and phase via an amplitude-phase multifunction chip, combining it into a single signal via a combiner chip, and downconverting it into an intermediate frequency signal via a frequency converter chip; and a transmitting link for upconverting the intermediate frequency signal into a W-band radio frequency signal via a frequency converter chip, splitting it into multiple signals via a combiner chip, modulating its amplitude and phase via an amplitude-phase multifunction chip, amplifying it with power via a bidirectional amplifier chip, and transmitting it via the W-band array antenna. This W-band phased array achieves both efficient heat dissipation and high isolation within an extremely small size through ultra-high integration design.