25results about How to "Reduce physical size" patented technology

The utility model relates to the technical field of radio frequency integrated circuits, in particular to a phase shifter circuit and a multi-phase shifter circuit, which comprise an input node, an output node, a first signal path and a second signal path, the first signal path comprises a first switch, a second switch and a decoupling structure, the decoupling structure comprises a first inductor, a second inductor and a third inductor, the first inductor and the second inductor are connected in series, one end of the third inductor is connected to a connecting line node of the first inductor and the second inductor, and the other end of the third inductor is grounded; the second end of the second inductor is connected to the second switch; the second signal path includes a third switch, a fourth switch, and an anti-coupling transformer. The phase shifter circuit provided by the utility model solves the technical problem of poor phase flatness of a phase shift unit in a traditional phase shifter, improves the phase flatness, has broadband operating characteristics and low insertion loss, and reduces the chip area of the phase shifter circuit.

The invention discloses a broadband 1-bit reconfigurable circularly-polarized reflective array antenna based on a multi-resonant structure. The broadband 1-bit reconfigurable circularly-polarized reflective array antenna comprises a reconfigurable circularly-polarized reflective functional layer, a circularly-polarized horn antenna and an acrylic support. The reconfigurable circular polarization reflection function layer is formed by periodically arranging M * N circular polarization reflection array antenna units with the same structure according to the interval of 0.4125 lambda 0. The circularly polarized reflective array antenna unit is composed of a radiation layer and a direct current bias layer, the radiation layer comprises a circuit pattern designed based on a multi-resonant structure, a PIN diode, a radiation dielectric layer and a reflection bottom plate, and the direct current bias structure comprises a direct current bias dielectric layer and a direct current bias circuit. 1-bit regulation and control of unit reflection phases can be realized by controlling the on-off states of the four PIN diodes, a + / -60-degree beam scanning function can be realized by adjusting the state of each circularly polarized reflective array antenna unit, and the circularly polarized reflective array antenna can be applied to wireless communication and satellite communication systems.

This invention discloses an integrated pump source and system. The integrated pump source includes: a pump source for generating pump light; multiple collimating lens groups, each corresponding to a light source module, for collimating the pump light emitted by the corresponding light source module; a beam splitter disposed in the output light path of at least one of the collimating lens group, focusing lens, and reflector, for splitting at least one of the output light to form a first-level pump light and a second-level pump light; a reflector disposed in the output light path of the collimating lens group and / or the beam splitter, for deflecting and guiding at least a portion of the output light; a focusing lens disposed in the output light path of the reflector and / or the beam splitter, for focusing the output light; a first output pigtail for receiving the focused first-level pump light and outputting it outward; and a second output pigtail for receiving the focused second-level pump light and outputting it outward.

The application discloses a miniaturized multilayer capacitive coupling LTCC dual-frequency antenna, which comprises an LTCC substrate, four metal layers embedded in the LTCC substrate, and a feeding electrode, a rear auxiliary electrode, a left ground electrode and a right ground electrode packaged on the surface of the LTCC substrate. The LTCC substrate comprises five dielectric layers, and the four metal layers are sequentially stacked in the vertical direction and are separated by the dielectric layers between adjacent metal layers. The four metal layers comprise a first coupling patch and a second coupling patch, a third coupling patch, a first radiation plate and a second radiation plate. The first coupling patch and the third coupling patch are coupled with the first radiation plate through interlayer coupling to generate a first resonant frequency; and the second coupling patch and the second radiation plate are coupled through interlayer coupling to generate a second resonant frequency which is higher than the first resonant frequency. The application realizes dual-frequency operation in a small size by optimizing the antenna structure, and has the characteristics of simple structure, easy processing and stable performance.

The invention discloses an ultra-wideband continuous regulation antenna system, which comprises an ultra-wideband voltage control system, a spherical electrode pair and a rectangular ring electrode pair, wherein the electrode width voltage control system is connected with the spherical electrode pair and the rectangular ring electrode pair and used for providing voltage signals for the spherical electrode pair and the rectangular ring electrode pair, and the straight line where the spherical electrode pair is located is parallel to the rectangular ring electrode pair; a box is arranged below the rectangular ring electrode pair, a salt solution is loaded in the box, and the spherical electrode pair is arranged in the salt solution and at the two ends of the box; a piezoelectric film is arranged between the rectangular ring electrode pairs, and an alloy material film and a radiation patch are sequentially arranged on the sides, away from the spherical electrode, of the rectangular ring electrode pairs. By means of the technical scheme, continuous regulation and control over the ultra-wideband can be conducted, the requirement for covering the ultra-low frequency band to the millimeter wave band can be met, the working frequency can be adjusted and controlled, and integrated communication from water to air and ultra-wideband frequency spectrum sensing are achieved.

The application relates to the technical field of laser gas detection, and provides a micro laser gas detection module and a gas detection method, which comprise a shell, a gas chamber cavity, a laser emission assembly, a mirror group and a laser receiving assembly. The gas chamber cavity is formed in the shell, the laser emission assembly, the mirror group and the laser receiving assembly are arranged in the gas chamber cavity, the optical axis of the laser emission assembly and the optical axis of the laser receiving assembly are vertically arranged in space, the mirror group comprises a first mirror group and a second mirror group which are oppositely arranged along the depth direction of the gas chamber cavity, the first mirror group is composed of two first plane mirrors which intersect at an angle of 90 DEG, the second mirror group is composed of two second plane mirrors which intersect at an angle of 90 DEG, the vertical distance between the axis line where the two first plane mirrors in the first mirror group intersect and the axis line where the two second plane mirrors in the second mirror group intersect is a first distance. The application can eliminate interference caused by stray light.

The present invention discloses an inverter device and a power conversion device including the same. The inverter device of the present invention is modularized. Therefore, the power conversion capacity of the inverter panel can be increased by simply increasing the number of inverter devices combined with the inverter panel. In addition, since the inverter panels are connected to each other to form a power conversion device, the power conversion capacity of the inverter panel can be increased by simply increasing the number of inverter panels.

The application belongs to the technical field of analog integrated circuits, and particularly relates to a band gap reference circuit controlled by a digital control module. The application adopts a relatively simple digital control module, controls the state of the band gap reference through PDN and PDP signals generated by the digital control module, controls the power-on and power-off of the band gap reference, reduces static power consumption, reduces the number of physical circuit components, greatly simplifies the working state control process of the whole BGR, and significantly reduces the design and maintenance cost of the circuit. The application guarantees the rapid and stable start of the circuit, simplifies the design, and reduces the power consumption. The application avoids the problems caused by the introduction of complex control logic and multiple circuit components for realizing the stable work of the traditional analog circuit design, reduces the physical size of the circuit, and reduces the design difficulty and cost.

The present application provides a multi-zero-point bandpass filter, which includes a dielectric substrate and at least two resonators connected to the dielectric substrate, the dielectric substrate includes an input end, an output end and a ground end, the input side of some of the at least two resonators is connected to the input end, the output side of another part of the resonators is connected to the output end, and the ground sides of at least two resonators are connected to the ground end; at least two resonators are stacked and arranged at intervals, and the odd mode and even mode generated by one resonator are respectively coupled with the odd mode and even mode generated by another adjacent resonator, generating four signal transmission paths and three transmission zero points. The multi-zero-point bandpass filter provided by the present application can generate mixed cross-coupling between odd and even modes between different resonators, thereby providing multiple transmission paths for radio frequency signals, and then generating multiple transmission zero points, improving the filter band selectivity, and the stacking arrangement between resonators also improves the compactness of the filter and reduces the physical size.

The utility model discloses a liquid-based cell preparation liquid path which comprises at least one reagent needle group which is respectively connected with a staining reagent A liquid container, a staining reagent B liquid container, a cleaning liquid container, a transparent liquid container and a buffer liquid container through an electromagnetic valve I, an electromagnetic valve II, an electromagnetic valve III, an electromagnetic valve IV, an electromagnetic valve V and a pipeline, the dyeing reagent A liquid container, the dyeing reagent B liquid container, the cleaning liquid container, the transparent liquid container and the buffer liquid container are connected with an air compression device through pipelines and electromagnetic reversing valves; the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve, the fifth electromagnetic valve and the electromagnetic reversing valve are electrically connected with a control device. According to the utility model, quantitative repeated liquid adding at each reagent needle position is realized, the use quantity of liquid path pumps and control electromagnetic valves is reduced, and the liquid path is simplified. Faults of a liquid path system are reduced, and the using performance is more stable.

This invention proposes a high-performance LC high-pass filter, comprising a signal input terminal, a signal output terminal, and a common ground terminal, and further comprising a first resonant unit, a second resonant unit, a third resonant unit, a fourth resonant unit, and a fifth resonant unit connected in sequence. This invention can be used in carrier aggregation scenarios to suppress blocking interference caused by low-frequency transmitted signals to high-frequency receivers, while allowing high-frequency signals to pass through without distortion. Its steep stopband characteristics ensure extremely high suppression even at frequencies very close to the passband, effectively protecting sensitive receiving circuitry. By employing a Π-type capacitor network structure, the bandwidth of the high-pass filter is extended by 6%. Furthermore, the integrated design reduces its physical size by approximately 10%, making it highly suitable for space-constrained system applications.

The invention provides a compact broadband band-pass filter adopting a parallel coupling line structure, which belongs to the technical field of microwave filters, and comprises a parallel coupling part and a loading microstrip part, on the premise of keeping the equivalent total electrical length as a quarter wavelength corresponding to the central working frequency, a plurality of resonance modes are excited, a plurality of transmission poles are formed in a passband, the broadband band-pass characteristic is realized, and the physical size is reduced; the loading microstrip part is composed of a plurality of microstrip lines, is arranged in a plane adjacent area of the parallel coupling part, and forms bypass loading in an out-of-band frequency band, so that main transmission signals and signals reflected by bypasses are subjected to destructive interference at a specific frequency, a plurality of transmission zero points are formed out of a band, the stop-band suppression range is expanded, and higher harmonics are suppressed. The filter adopts a single-layer planar microstrip structure, and has the advantages of compact structure, wide stop band, strong harmonic suppression capability and good adjustability of passband and stop band performance.

The invention discloses a cross dipole broadband antenna, which belongs to the field of wireless communication, has a dual-polarization characteristic and can support two mutually vertical polarization directions at the same time, and the high isolation and the optimized design of the dual-polarization antenna reduce signal attenuation and loss and ensure the reliability and the stability of a communication system. Moreover, the antenna is provided with a balun structure which can effectively cut off the high-frequency current flowing through the sheath of the cable shielding layer from the cross dipole patch, thereby ensuring the correct transmission of signals and good antenna performance. The Balun structure can realize the conversion between different impedances, so that the impedance between the antenna and the transmission line is matched, and the maximum power transmission is ensured; besides, the patch of the antenna adopts a novel fractal structure, namely a quartering circular fractal structure, so that the antenna performance is improved, the broadband characteristic is maintained while the light weight is realized, the frequency bandwidth is improved, and the radiation efficiency is optimized.

The utility model discloses a WIFI double-frequency ceramic antenna based on graphene materials, which comprises a ceramic substrate and a plurality of graphene patches, and the graphene patches are arranged on the ceramic substrate to form a main body part of the antenna to be connected with a peripheral matching circuit. A first patch, a second patch, a third patch, a fourth patch, a fifth patch and a sixth patch are respectively arranged on the upper surface and the lower surface of the ceramic substrate along the horizontal direction; a seventh patch and an eighth patch are arranged on the left side face and the right side face of the ceramic substrate respectively. The first patch, the second patch, the third patch, the fourth patch, the fifth patch and the sixth patch are all graphene patches. Therefore, the graphene material patch is designed into a stub coupling resonance structure, a WIFI or Bluetooth antenna with multiple frequency bands, a wide working frequency band, light weight and miniaturization is easier to design, and the basic performance index of an antenna product is ensured. Under the condition of the same ceramic dielectric material, the physical structure size of the ceramic substrate can be reduced by 20%.

The invention relates to the technical field of communication, and discloses a millimeter wave phase shifter and a phased array system with the same, and the phase shifter comprises an input matching network, an orthogonal generator, an I-path phase shift circuit, a Q-path phase shift circuit and an output matching network. The input end of the input matching network is connected with the input bonding pad, the orthogonal generator is of an inductance compensation type transformer structure, the second end of the primary inductor of the first transformer and the second end of the primary inductor of the second transformer are both connected with first inductors in series, and a first resistor is connected between the two first inductors. Each of the I-path phase-shifting circuit and the Q-path phase-shifting circuit comprises a matching network, an amplifier and a DAC switch array which are connected in sequence; and the output ends of the amplifiers in the I-path phase-shifting circuit and the Q-path phase-shifting circuit are connected with a second inductor in parallel. The input end of the output matching network is connected with the output ends of the I-path phase-shifting circuit and the Q-path phase-shifting circuit, and the output end of the output matching network is connected with the output bonding pad. The phase shifter is relatively small in physical size and relatively high in bandwidth.

The invention discloses a packaging structure corresponding to wafer back power supply of a chip of 2nm and below 2nm. According to the scheme, an adapter plate is arranged on a substrate, and a first chip with the thickness of 2nm and below 2nm is inversely arranged on the basis of the adapter plate, so that smaller packaging height and smaller physical size are realized. Through the vertical metal blocks and the transverse metal blocks, the sectional area of current transmission is increased, the resistance is reduced, and the current transmission efficiency is improved. The vertical metal blocks and the transverse metal blocks serve as conductive channels and also serve as heat conduction paths, the heat conduction and dissipation capacity is effectively improved, and stable operation of the chip is guaranteed. Through the arrangement of the flip first chip, wafer back power supply is realized, the power supply path is shortened, the IR voltage drop is reduced, and the power supply efficiency is improved. And the vertical metal block is flush with the back surface of the first chip, so that the length of a current transmission path is reduced, the energy loss and electromagnetic interference are reduced, the electrical performance is improved, the uniformity of current distribution is ensured, and the resistance is further reduced.

The invention provides a holographic optical film, a preparation method, a preparation system and a display system applying the holographic optical film, and the preparation system comprises a laser used for generating a laser beam; the beam splitting module is arranged on a propagation path of the laser beam and is used for splitting the laser beam to generate a reference beam and a signal beam; the reference light module is arranged on a propagation path of the reference light beam and is used for reflecting the reference light beam to one side of the holographic photosensitive film material; the scattering film is positioned on the other side of the holographic photosensitive film material; the signal light module is arranged on a propagation path of the signal light beam and is used for reflecting the signal light beam to the scattering film; wherein the signal light beam penetrates through the scattering film and then irradiates the holographic photosensitive film material together with the reference light beam, interference exposure is carried out on the holographic photosensitive film material, and a holographic optical film is formed. The HUD has excellent display performance and optical perspective effect, and the display effect of the HUD can be improved.

The invention discloses a method for manufacturing a vertical nanosheet inverter structure. The method comprises the following steps: providing bulk silicon; executing a BPR process; forming a multi-layer stacked epitaxial structure; forming a vertical conductive channel; forming a grid electrode; forming an isolation side wall; manufacturing a first epitaxy at the bottom of the back surface of the device, manufacturing a second epitaxy at the bottom of the back of the device, wherein the second epitaxy is used for connecting two device source regions; forming an SOC layer; removing the top epitaxial layer; forming an interconnection dielectric layer; forming a top epitaxy; forming top epitaxial layer contact; the nanosheet is manufactured through the double patterns; forming a high dielectric constant insulator metal gate; and connecting the BPR and the bottom device drain region through the back contact hole, connecting the two device source regions through the back contact hole, connecting the top device drain region and the metal layer through the contact hole, and executing a back-end process. According to the invention, the physical size of the chip can be reduced, the process complexity of connecting the contact holes outside the multi-layer alternate stacking structure is reduced, the production and implementation are facilitated, and the miniaturization of the device is also facilitated.

The present invention relates to the technical field of shooting equipment, and in particular to a free-form surface periscope telephoto lens. The free-form surface periscope telephoto lens provided in the present application is composed of a first free-form surface prism, a second free-form surface prism, a first lens with negative refractive power, and a second lens with positive refractive power. Through different arrangements, the propagation direction of light can be changed by 60 degrees to 90 degrees, thereby reducing the physical size of the entire optical system, making it more compact and reducing the length of the periscope telephoto lens.

The invention provides a low-RCS (radar cross section) dual-polarized antenna compact unit based on secondary interference cancellation. The low-RCS dual-polarized antenna compact unit comprises a first dielectric plate, a second dielectric plate, a radiation patch, a metal floor and a dual-polarized feed network. The radiation patch is composed of four metal patches which are symmetrically distributed in a 90-degree rotation mode, each patch comprises a triangular part, the first edge of the triangular part faces outwards, and the opposite angles of the triangular part face the center. The metal floor is located on the lower surface of the first dielectric plate, an isolation hole is formed in the metal floor, a preset vertical distance is kept between the metal floor and the radiation patch, and the preset vertical distance is configured to enable scattered waves generated by the radiation patch and scattered waves generated by the metal floor to have a phase difference of 180 degrees + / -37 degrees in a preset frequency band; and the first side of each patch is connected with the floor through a plurality of short-circuit metal through holes which are distributed at equal intervals. And the dual-polarization feed network is positioned on the lower surface of the second dielectric plate, comprises two paths of orthogonal polarization networks, and is connected with the patch through a feed metal through hole penetrating through the isolation hole.

The invention relates to the technical field of antennas, in particular to a marginal inductive loading-based radio frequency identification miniaturized narrow-beam antenna, which comprises a top dielectric substrate and a bottom dielectric substrate, the lower surface of the bottom dielectric plate is provided with a reflection copper-clad grounding plate, and the upper surface is provided with a feed network. The upper surface of the top layer dielectric substrate is provided with a rhombus metal patch with two feeding points, and four corners of the rhombus metal patch are respectively located at the midpoint positions of four edges of the top layer dielectric substrate; the four corners of the top layer dielectric substrate are respectively provided with a triangular parasitic patch, and each triangular parasitic patch is connected with the reflection copper-clad grounding plate on the lower surface of the bottom layer dielectric substrate through a short circuit screw. The top layer dielectric substrate and the bottom layer dielectric substrate are kept at an interval of a specific height through the short circuit screws, so that an air layer is formed; and two feed points of the rhombic metal patch are respectively connected with a feed network on the upper surface of the bottom dielectric substrate through a metal probe which vertically penetrates through the air layer.

The invention discloses a non-anisotropic magnetic storage unit and application and a manufacturing method thereof. The magnetic storage unit is provided with a substrate, a buffer layer and a magnetization layer from bottom to top in sequence, a gap is formed in the center line position of one side of the magnetic storage unit; a first magnetic tunnel junction, a second magnetic tunnel junction, a third magnetic tunnel junction and a fourth magnetic tunnel junction are sequentially arranged on the magnetized layer from left to right, and the gap is located between the second magnetic tunnel junction and the third magnetic tunnel junction; the first magnetic tunnel junction and the fourth magnetic tunnel junction are both used for changing the magnetization state of the magnetization layer; the second magnetic tunnel junction and the third magnetic tunnel junction are both used for reading the magnetization state of the magnetization layer. The method can reduce operation energy consumption and physical volume, and can be widely applied to the field of microelectronic storage devices.

The invention discloses a surgical power handle system and an identification method thereof, and belongs to the technical field of medical equipment. The system comprises an operation power handle and an operation power system host, and non-contact handle identification and data access are achieved in a radio frequency identification mode. An RFID electronic tag is arranged in the plug of the handle, a radio frequency identification module and a radio frequency identification coil are arranged in the host, and when the handle is inserted into the host through the pin, the radio frequency identification module reads or writes data in the RFID electronic tag in a non-contact manner through the radio frequency identification coil. A data storage area of the RFID electronic tag comprises a fixed data area and a changeable data area which are respectively used for storing identity information and dynamic use data of the handle. Handle recognition and data interaction can be achieved without additional physical wiring, the reliability of the system is improved, the service life of the system is prolonged, meanwhile, the using state of the handle can be monitored in real time, and maintenance and management are convenient.

The invention relates to a time domain interleaving SAR ADC capacitor mismatch calibration method, which belongs to the technical field of electronic circuits, is executed by a digital calibration module, and comprises the following steps: alternately sampling and holding an input signal through a time domain interleaving sampling network, and respectively distributing the input signal to a first analog-to-digital conversion branch and a second analog-to-digital conversion branch, a positive Dither disturbance signal and a negative Dither disturbance signal are respectively applied, a first digital code and a second digital code are respectively output, and weight estimation values of capacitor arrays in the first analog-to-digital conversion branch and the second analog-to-digital conversion branch are iteratively updated based on a minimum mean square algorithm; and a weighted difference value output by the first analog-to-digital conversion branch and the second analog-to-digital conversion branch approaches to zero. According to the method, the problem that deviation exists between the actual weight and the expected weight of the SAR ADC due to relative mismatch of the capacitor array in the manufacturing process of the SAR ADC is solved.

The present application discloses a miniaturized satellite navigation antenna module and electronic equipment, the antenna module includes: a first dielectric substrate and an antenna unit, the antenna unit is laid on a side surface of the first dielectric substrate, the antenna unit includes a rectangular body, the rectangular body has four semicircular areas, the diameter of each semicircular area coincides with a side corresponding to the rectangular body, and each semicircular area is evenly spaced along its own diameter direction with n vertical grooves to form n-1 strips in the semicircular area, each strip extends in a direction perpendicular to the side. The above-mentioned antenna module is adopted, and the current flows along the edge of the antenna unit by means of a structure with grooves on four sides, which increases the equivalent electrical length of the radiation patch to stimulate the slow wave effect of the satellite navigation antenna, while not changing the antenna radiation characteristics and edge electromagnetic field characteristics. In this way, the physical size of the antenna will be reduced while ensuring that the center frequency remains unchanged, thereby realizing the miniaturized design of the antenna module.