374results about How to "Realize miniaturization design" patented technology

The invention discloses a planar-broadband dual-polarization base station antenna and belongs to the field of mobile communication base station antennae. The planar-broadband dual-polarization base station antenna mainly solves the problems that an existing base station antenna is complex in structure and has difficulty in being integrated with other devices. The planar-broadband dual-polarization base station antenna comprises radiation oscillators (1), feed baluns (2), a baffle board (3), coaxial cables (4), supporting columns (5) and a dielectric material plate (6). The radiation oscillators (1) are dual-polarization planar oscillators at +/-45 degrees, and the feed baluns (2) are planar feed baluns at +/-45 degrees. The radiation oscillator at -45 degrees and the feed balun at +45 degrees are printed on the upper surface of the dielectric material plate (6), and the radiation oscillator at +45 degrees and the feed balun at -45 degrees are printed on the lower surface of the dielectric material plate (6). The dielectric material plate (6) is fixed to the square baffle board (3) through the supporting columns (5). According to the planar-broadband dual-polarization base station antenna, planarization of the radiation oscillators and the feed baluns are achieved, meanwhile, the structure of the baffle board is simplified, and a stable directional diagram characteristic can be obtained in broadband.

The invention discloses a fully-digital direct sequence spread spectrum communication system and a rapid pseudo code capturing method thereof. A digital signal is processed by using an FPGA (Field Programmable Gate Array) which comprises a pseudo code capturing module, a sampling signal of an ADC (Analog To Digital Converter) is subjected to frequency mixing with a signal of a local carrier NCO (Numerically Controlled Oscillator) and filtered to obtain a baseband signal, residual carrier Doppler frequency is eliminated from the baseband signal by adopting a differential multiplying mode, thus the phase deviation of a receiving signal and a local pseudo code is further obtained through an FFT (Fast Fourier Transform) algorithm without scanning on a carrier frequency domain; and when the phase deviation of the pseudo code is obtained, a local pseudo code phase is modified and is subjected to correlation degree of dissociation with the receiving signal, and the carrier Doppler frequency is figured out by using the FFT algorithm, and is compensated to a carrier NCO and a pseudo code NCO, thus carrier frequency capturing and pseudo code capturing are realized.

The invention provides a miniaturized dual-frequency antenna. The miniaturized dual-frequency antenna comprises a medium substrate and a monopole antenna printed on the medium substrate. The monopole antenna comprises a main radiating unit, a coplanar waveguide feeding signal strip line connected with the main radiating unit, coplanar waveguide ground planes and auxiliary radiating units arrangedbetween the main radiating unit and the coplanar waveguide ground planes. The main radiating unit is a U-shaped radiating unit, the lower end of the coplanar waveguide feeding signal strip line is connected with an inner conductor of SMA (Stone Matrix Asphalt), and an outer conductor of the SMA is connected with the coplanar waveguide ground planes. The invention can be used for receiving and transmitting radio waves. The invention can be used for terminals for electronic reconnaissance and electronic countermeasure and tracking and electromagnetic protection, wireless local area network and global microwave access terminal receiving equipment. The invention has the advantages of simple structure, wide operating bandwidth and low cost, and is convenient for mass produce.

The invention relates to a high-accuracy APS sun sensor, which comprises: a light lead unit, a picture sensor, a signal processing unit and an interface unit, wherein said light lead unit is connected to the picture sensor; the signal processing unit is connected to the picture sensor and the interface unit; said interface unit is connected to the main computer; the light lead unit is used to generate the speckle array picture; the picture sensor is used to output the pixel gray valve of speckle array picture; the signal processing unit, based on said gray valve, tests the state angle; the interface unit is used to transmit the state angle to the main computer. The invention has high speed, small volume, large view angle, high accuracy and low power consumption.

The invention relates to a method for generating the atom bean used in atom chip and relative device, wherein, the device comprises a vacuum room, an atom source, a two-dimensional micro adjusting platform, a magnetic iron and inner and outer light paths. The inner and outer light paths comprise a main laser and a re-pump laser; the vacuum room is mounted with a 1/4 wave plate reflector group with a hole in center and a direct-guide group; the magnetic light well uses the optical pump laser and the re-pump laser to prepare the atom into optimized weak field scanning state. The invention has small volume and simple structure, while it can supply the optimized weak field scanning state to the atom chip with the atom beam whose longitudinal speed is lower and uniform, transverse speed is nearly zero and density is high. The invention can be used in the guide, wave-division, interference and the Bose-Einstein Coagulation (BEC).

The invention relates and belongs to the field of terahertz time-domain spectroscopy diagnostic technique, in particular to a terahertz spectrograph and a terahertz transceiver probe (b). (/b) The technical problems to be solved are as follows: the existing terahertz time-domain spectroscopy systems mostly adopt an off-axis parabolic mirror to implement the space transmission for terahertz pulses, and have complex structures, long optical paths and weak stability, so that the energy utilization rate of terahertz waves is low. Against the existing problems, the invention provides the terahertz spectrograph and the terahertz transceiver probe; laser emitted by a laser is converted to detection light and pump light through a terahertz converter; then, the detection light and the pump light output by the terahertz converter are received through the terahertz transceiver probe so as to implement the sample reflection type detection and transmission type detection to obtain sample spectral information. The problems of complex structure and large volume of the existing terahertz spectrographs in the prior art are solved. Further, the defects of large volume and low utilization efficiency of terahertz energy of the existing terahertz transceiver probes are solved. The terahertz spectrograph comprises the laser, the terahertz converter, the terahertz transceiver probe and the like. The terahertz spectrograph and the terahertz transceiver probe are applied to the terahertz spectral imaging and diagnose application fields.

The invention discloses a wavelength division multiplexing single-fiber bidirectional data receiving and dispatching module, which comprises a wavelength division multiplexing module, a laser array, alight detector array and a light circulator; the laser array is aligned and coupled with a first input end of the wavelength division multiplexing module, the light detector array is aligned and coupled with a second output end of the wavelength division multiplexing module; a first end of the light circulator is connected to a first output end of the wavelength division multiplexing module, anda third end of the light circulator is connected to a second input end of the wavelength division multiplexing module; the second end of the light circulator is used as the input/output end of the light circulator and used for connecting with an external transmission fiber; the wavelength division multiplexing module is used for multiplexing the multiple wavelength light signals emitted by the laser array and demultiplexing the multiple wavelength light signals received from the single fiber head; the light signal in the light circulator can carry out the one-way transmission along the first end, the second end and the third end in order. The wavelength division multiplexing single-fiber bidirectional data receiving and dispatching module can realize the single-fire bidirectional transmission and is applied to the high-speed fiber interconnection of a data center.

The invention discloses a multifrequency directional-diagram reconfigurable antenna based on double-open resonant ring, relates to an antenna, and specifically relates to a directional-diagram reconfigurable antenna so as to solve the problem that the existing reconfigurable antenna is complex in structure and can not operate simultaneously at multiple different operating frequencies. The reconfigurable antenna comprises a first metal sheet, a round metal-form feed wafer, a dielectric slab, four second metal sheets, four metal open resonant rings and eight switches, wherein a layer of metal sheets is attached to the lower surface of the dielectric slab, the round metal-form feed wafer is attached to the middle part of the upper surface of the dielectric slab, the four metal open resonant rings are arrayed around and attached to the periphery of the round metal-form feed wafer, each metal open resonant ring is of a circular concentric inside-outside dual-ring structure, and the opening of one inner ring of each metal open resonant ring is provided with a switch. The multifrequency directional-diagram reconfigurable antenna based on double-open resonant ring is applied to wireless communication systems.

The invention relates to a broadband single-dielectric-layer GNSS measurement type antenna device. The antenna device comprises a first micro-strip patch, a second micro-strip patch, a first short-circuit pin bolt, a plurality of second short-circuit pin bolts, a dielectric plate and a metal floor. A plurality of first feeding points are arranged on the first micro-strip patch; a plurality of second feeding points are arranged on the second micro-strip patch, and the first micro-strip patch and the second micro-strip patch are located on the same plane; the first short-circuit pin bolt is fixedly connected with the first micro-strip patch; the second short-circuit pin bolts are fixedly connected with the second micro-strip patch; the first micro-strip patch and the second micro-strip patch are fixedly connected to the upper surface of the dielectric plate, and a plurality of third short-circuit pin bolts are fixedly connected to the periphery of the dielectric plate; the metal floor is fixedly connected with the dielectric plate. The broadband single-dielectric-layer GNSS measurement type antenna device is low in cost, light, minimized and high in gain, and meets the high-accuracy requirement of a multi-system navigation time searching and positioning antenna, and the wide angle axis ratio and wide beam bandwidth are achieved.

The invention relates to a microstrip antenna array applied periodic spatial wave blocking and decoupling structure, which is used to reduce the coupling of array antennas and is realized through the loading of a periodic spatial wave blocking structure in the antenna array. The stereoscopic periodic spatial wave blocking structure is capable of reducing the coupling of the antenna array elements and increasing the separation of the antenna array. The structure comprises mainly a dielectric substrate 701, a commonly grounding plate 301, an antenna rectangular radiation patch 101 and an antenna rectangular radiation patch 102, a stereoscopic periodic spatial wave blocking structure 201, a patch 601, a grounding probe 501, and coaxially feed ports 401 and 402. The stereoscopic periodic spatial wave blocking structure designed by the invention cannot only effectively reduce the coupling in the antenna array, but also effectively increases the separation of the antenna array, and therefore, achieves the design of high-performance array antennas.

The invention relates to a miniaturized channel with low power consumption at the Ka frequency band. The miniaturized channel comprises a public passageway, a first passageway, a second passageway, a public local oscillator, a first passageway local oscillator and a second passageway local oscillator. Through design of frequency points of the public local oscillator, the first passageway local oscillator and the second passageway local oscillator and design of the framework of the public passageway, the first passageway and the second passageway, the number of the channels and the number of the local oscillators of a dual-passageway variable-frequency channel are reduced, the number of active devices is reduced, channel power consumption is greatly lowered, miniaturized design of the channel is achieved, and a high-dynamic, low-stray and dual-passageway miniaturized receiving channel with lower power consumption at the Ka frequency band is formed; in addition, automatic gain amplifiers in the two passageways are creatively designed, the base band is used for processing exiting resources, automatic and controllable gain amplification is achieved through the mode that analog and digital are combined, the number of detectors and the number of A/D samplers are reduced, resources are saved, cost is lowered, and precision is greatly improved.

The invention provides an antenna array and an antenna. The antenna array comprises first column elements and second column elements which are arranged side by side. The first column elements comprise at least one first radiation unit. The second column elements comprise at least one second radiation unit. The antenna array also comprises at least one microwave network. The microwave network is provided with two input port and two output ports. The two input ports are mutually isolated and accessed to a feed phase shift network. The two output ports are respectively connected with the first and second radiation units in the same horizontal direction, and the signals of which the range of the phase difference value is between +/-45 degrees can be outputted to the first and second radiation units at the two output ports when the electric signals are inputted from any one input port of the microwave network. With application of the scheme, narrowing of wave beam width can be realized when the physical size of the antenna is narrowed so that the gain of the antenna can be enhanced, and the miniaturization design of the antenna can be realized.

The invention provides a soft surface structure-based patch array antenna, and aims at achieving miniaturization while keeping high gain of the patch array antenna. The soft surface structure-based patch array antenna comprises five dielectric plates which are stacked from top to bottom, wherein a first composite metal band is printed on the first dielectric plate; a second composite metal band and m*n upper radiating elements are printed on the second dielectric plate and each upper radiating element comprises 2*2 upper radiation patches; m*n first plated through holes are arranged in the third dielectric plate, a third composite metal band and m*n lower radiating elements are printed on the upper surface of the third dielectric plate, each lower radiating element comprises 2*2 lower radiation patches and a main radiation patch, an internal grounding plate is printed on the lower surface of the third dielectric plate and m*n feed via holes are etched in each internal grounding plate;the first composite metal band, the second composite metal band and the third composite metal band form a soft surface structure; m*n second plated through holes are arranged in the fourth dielectricplate; and an external grounding plate is printed on the lower surface of the fifth dielectric plate and a feed network is printed on the upper surface of the fifth dielectric plate.

The invention relates to an IP based satellite-earth forwarding and inter-satellite networking integrated system of GEO satellites. GEO inter-satellite networking between a No.1 satellite and a No.2 satellite is realized via inter-satellite wave beams, the No.1 satellite covers three to-earth wave beams and one inter-satellite wave beam, and the No.2 satellite covers one to-earth wave beam and one inter-satellite wave beam. The system comprises four uplink frequency conversion modules, one spaceborne IP module and four downlink frequency conversion amplification modules of the No.1 satellite as well as two uplink frequency conversion modules, two uplink mixing bridges, one spaceborne IP module, two downlink mixing bridges and two downlink frequency conversion amplification modules of the No.2 satellite. The satellite IP technology is used to realize satellite routing and switching functions to solve the problems in inter-satellite networking and routing management in satellite switching and greatly improve the system performance of satellites; the system can satisfy requirements for switching of different numbers of wave beams, different satellites use the spaceborne IP modules of the same function and structure, and the inheritance of the system is improved; and two work mode can be switched in use, different wave beams of the satellite can use the same modulation and demodulation channel, and the system can be miniaturized.

The invention relates to an astronautic programmable thermocouple temperature transmitter. A circuit part is composed of a power circuit, a programmable amplifying circuit, a programmable cold junction compensation circuit, an operation amplifying circuit and an output protecting circuit, wherein the functions of power filtering, reverse connection protection, transient impact protection, and the like, are achieved by the power circuit; a thermocouple signal is adjusted to be in a suitable voltage range by the programmable amplifying circuit; the programmable cold junction compensation circuit is used for sensing the temperature of a cold junction of the thermocouple, converting a temperature signal of the cold junction into a voltage signal and compensating the temperature of the cold junction of the thermocouple; output signals of the programmable amplifying circuit and the programmable cold junction compensation circuit are operated and amplified to be 0-5V by the operation amplifying circuit; and the output protecting circuit is used for limiting an output voltage within a scope of -0.5V to +6.5V and protecting a next-stage system from being damaged when the circuit is in fault. The astronautic programmable thermocouple temperature transmitter has the advantages of high intelligent degree, adjustable range, no requirement for hardware debugging, suitability for batch production and suitability for thermocouples of K type, E type, T type and tungsten rhenium type.

The invention discloses a high-isolation surface acoustic wave duplexer and a method for realizing high isolation. The duplexer is provided with an antenna terminal, a transmission terminal and a receiving terminal. A transmission filter is connected between the antenna terminal and the transmission terminal, a receiving filter is connected between the antenna terminal and the receiving terminal,a suppression resonator is connected in series with the port of the receiving filter, the isolation and suppression of the passband of the duplexer are improved by optimizing the grounding mode of thelongitudinal coupling filter, and meanwhile, the miniaturization design of the duplexer is facilitated.

The invention discloses a reflective programmable metasurface for realizing wave beam scanning in ka waveband. The programmable metasurface is composed of 20 * 20 basic unit structures, and the basicunit structures are shown in figure 1. The size of the whole metasurface is small, and the miniaturization can be realized. The digital codes of the metasurface are obtained by designing different beam deflection angles, and then the state of each basic unit structure is controlled. The beam pointing at different angles is achieved. Therefore, the purpose of beam scanning is achieved. The reflective programmable metasurface is simple to manufacture, easy to integrate, low in cost and small in size, and can be directly used in a millimeter wave communication system.

The invention relates to a camera shooting module and an electronic device. The camera shooting module comprises a first lens unit, a second lens unit, a motion type reflection unit, a first reflection unit, a second reflection unit and an image sensor, wherein the first lens unit comprises at least one lens; the second lens unit comprises at least one lens; the motion type reflection unit is arranged on an optical axis of the first lens unit and the second lens unit and can move in a preset direction; the first reflection unit is arranged on the side, which is away from the motion type reflection unit, of the first lens unit, and the first reflection unit is used for reflecting incident light to the first lens unit; the second reflection unit is arranged on the side, which is far away from the motion type reflection unit, of the second lens unit, and the second reflection unit is used for reflecting the incident light to the second lens unit; and the image sensor is arranged oppositeto the motion type reflection unit, and the motion type reflection unit moves in the preset direction so as to reflect the light from the first lens unit or the second lens unit to the image sensor. The structure can achieve the design of a single image sensor, facilitates the reduction of the module size, and reduces the production cost.

The invention discloses a test tube conveying mechanism and test tube label sticking equipment. The test tube conveying mechanism comprises multiple sheets of carrier plates and multiple test tube outputting components. A conveying guide groove is formed between each two sheets of the carrier plates. Inclined guide faces are formed in the conveying plats. A test tube outputting component is arranged at an outlet of each conveying guide groove. Each test tube outputting component comprises a motor and a swing arm. The swing arms are provided with rotating shafts. The motors are in transmission connection with the rotating shafts. A groove-shaped space used for containing a single test tube is formed between the two end portions of each swing arm. The test tube conveying mechanism and the test tube label sticking equipment have the advantages that minimizing type design of the test tube conveying mechanism is achieved, and the reliability and operating accuracy of the test tube conveying mechanism are improved.