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36results about How to "Guaranteed Radiation Efficiency" patented technology
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Mobile device
ActiveCN104425880AImprove aestheticsGuaranteed Radiation EfficiencyAntenna supports/mountingsRadiating elements structural formsMiniaturizationMobile device
A mobile device comprises a medium substrate, a grounding member, a signal source, a first conductive frame, a second conductive frame, a third conductive frame, a short circuit portion, a feed-in portion, a first radiation portion and a second radiation portion. The first conductive frame, the second conductive frame and the third conductive frame are separated mutually; the second conductive frame is coupled to the grounding member through the short circuit portion; the first radiation portion is coupled to the feed-in portion and has an open end which is close to the second conductive frame; and the second radiation portion is coupled to the feed-in portion and has an open end which is close to the third conductive frame. An antenna structure is at least formed by the feed-in portion, the first radiation portion, the second radiation portion, the second conductive frame and the short circuit portion jointly. The mobile device has dual advantages of improving external beauty and maintaining antenna radiation efficiency, and the mobile device is very suitable for being used in various miniaturized mobile communication devices.
Owner:ACER INC
Smart watch
InactiveCN105186135ARealize thin and light developmentAchieving an all-metal exterior designCoupling device connectionsAntenna supports/mountingsCouplingEngineering
The invention relates to a smart watch, which comprises a display assembly, a metal outer frame provided with an opening, a printed circuit board, a radio frequency port and a coupling feed part. The display assembly is positioned at the opening part of the metal outer frame and encloses an accommodating space inside the metal outer frame together with the metal outer frame. The printed circuit board is arranged in the accommodating space. A gap is reserved between the printed circuit board and the metal outer frame. The radio frequency port is arranged on the printed circuit board. The coupling feed part is arranged in the gap and is connected with the radio frequency port so as to be coupled and connected to the metal outer frame. The radio frequency port is used for enabling the coupling excitation of the metal outer frame via the coupling feed part so as to form an antenna radiation body based on the metal outer frame. By means of the above smart watch, not only the radiation efficiency of an antenna is ensured, but also the dimension and the weight of the antenna are effectively reduced. Meanwhile, the lightening and thinning development of the smart watch is realized. Moreover, the full-metal appearance design of the smart watch is enabled.
Owner:ONEPLUS TECH SHENZHEN
Ultra-high frequency electronic label for metallic material surface
InactiveCN101197007AGood effectSmall sizeRecord carriers used with machinesUltrahigh frequencyMicrostrip antenna
An ultrahigh frequency electronic label used for metal material surface comprises a substrate, a chip of the electronic label placed on the same surface of the substrate, a feeder line and an antenna receiving / emitting surface, wherein, the substrate surface is the front of the electronic label; an antenna grounding surface is placed on the other surface of the substrate, and the substrate surface is the back of the electronic label; the antenna receiving / emitting surface on the front is connected with the antenna grounding surface on the back through a short circuit groove to form a microstrip antenna; the chip is connected with the antenna receiving / emitting surface through the feeder line; grounding end of the chip is connected with the antenna grounding surface on the back via a through hole; the antenna grounding surface on the back is in direct contact with the surface of a metal material using the electronic label. As the self back of the electronic label is the grounding surface, the shielding effect of the metal material surface does not need to be considered completely. Due to the short circuit groove, the area of the microstrip antenna can be reduced by about a half. Therefore, the size of the electronic label can be reduced.
Owner:SHANGHAI FUDAN MICROELECTRONICS GROUP
Antenna assembly and electronic device having crimped screen
ActiveCN112421210AIncrease the lengthGuaranteed Radiation EfficiencySimultaneous aerial operationsAntenna supports/mountingsAntenna radiationElectric devices
The embodiment of the invention provides an antenna assembly and an electronic device with a curly screen, and the electronic device comprises a mobile phone, a tablet personal computer and other mobile or fixed terminals with antennas. In the electronic device provided by the embodiment of the invention, an antenna radiator is located on a metal top frame or a metal bottom frame of the electronicdevice, and the extension branch knot extends into the electronic device and is connected with the antenna radiator, so the length of the antenna is increased, and the antenna radiation efficiency isensured; the problem that the length of the antenna which can be arranged on the mobile phone is insufficient due to the fact that the metal frame which can be used as the antenna is reduced in the existing mobile phone is solved.
Owner:HUAWEI TECH CO LTD
Low profile cross-shaped vibrator for multi-frequency base station antenna
ActiveCN109546334AReduce distractionsGuaranteed Radiation EfficiencyAntenna supports/mountingsRadiating elements structural formsMicrostrip circuitsSection plane
The invention discloses a low profile cross-shaped vibrator for a multi-frequency base station antenna. The vibrator comprises a horizontal feed medium plate, two vertical feed medium plates and fourantenna vibrator arms. The two vertical feed medium plates are respectively a -45 DEG vertical feed medium plate and +45 DEG vertical feed medium plate. Two sides of the upper ends of the two verticalfeed medium plates are respectively provided with a notch matched with the vibrator arm. An end portion of an end of each antenna vibrator arm has a channel matched with thickness of the vertical feed medium plate. One end of the antenna vibrator arm is clamped in the notch of the vertical feed medium plate, and the notch of the vertical feed medium plate is also clamped in a channel on the end of the antenna vibrator arm. A microstrip circuit is disposed on the front surface of the horizontal feed medium plate. The horizontal feed medium plate has a cross-shaped groove matched with the two vertical feed medium plates. The cross section of a radiation arm of the vibrator is relatively small, and blocking of a high frequency vibrator can be effectively reduced, thereby reducing interference to the high frequency vibrator.
Owner:ZHONGTIAN BROADBAND TECH +1
Mobile terminal
InactiveCN104184851ASolve strong couplingGuaranteed Radiation EfficiencyTelephone set constructionsStrong couplingComputer terminal
The invention brings forward a mobile terminal comprising a metal frame, a metal support used for installation of a display screen and an antenna radiation body. The metal support is installed in the metal frame, and at least two edges of the metal support are matched with the corresponding edges of the metal frame. A metal ring is formed by the non-matching edges on the metal support and the edges, which are corresponding to the non-matching edges on the metal support, of the metal frame together. The metal ring is arranged in the projection area of the antenna radiation body. The mobile terminal is characterized in that the metal ring is provided with a grounding device which is connected with the reference ground of the mobile terminal. The objective of the mobile terminal is to solve a problem of strong coupling between the metal ring structure and the antenna radiation body in the mobile terminal so that antenna radiation efficiency is guaranteed.
Owner:BBK COMM TECH
Electronic device
ActiveCN103531882AGuaranteed Radiation EfficiencyMeet the needs of appearance designAntenna supports/mountingsRadiating elements structural formsRadio frequency signalElectric current
The invention provides an electronic device including a metal casing, a first opening, a first metal wire harness, a first grounding point and a first current zero point. The first opening penetrates through the metal casing. The first metal wire harness is located in the first opening. A first end of the first metal wire harness is electrically connected with a side edge of the first opening. A second end of the first metal wire harness is provided with a first feed-in point. The first grounding point and the first current zero point are located on the side edge of the first opening. The metal casing forms a first annular antenna through a first stimulating path from the first feed-in point to the first grounding point so as to receive or transmit a first radio-frequency signal.
Owner:ACER INC
Antenna module and terminal
ActiveCN110854533AGuaranteed Radiation EfficiencyReduce couplingAntenna supports/mountingsAntenna couplingsTelecommunicationsExcitation signal
The embodiment of the invention discloses an antenna module and a terminal, and belongs to the field of antennas. The antenna module comprises a first feed part, a second feed part, a decoupling hybrid network, a first antenna and a second antenna. The decoupling hybrid network comprises a first input port, a second input port, a first output port and a second output port. The first feed part is connected with the first input port, and the second feed part is connected with the second input port; the first antenna is connected with the first output port; the second antenna is connected with the second output port and is spaced from the first antenna; when an excitation signal is sent out by the first feed part, the first input port is a signal input port, the second input port is an isolation port, the first output port is a straight-through port, and the second output port is a coupling port; and when the excitation signal is sent out by the second feed part, the second input port isa signal input port, the first input port is an isolation port, the second output port is a straight-through port, and the first output port is a coupling port.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD
Small-size broadband antenna
ActiveCN105958189AFlat input impedanceHigh bandwidthRadiating elements structural formsAntennas earthing switches associationMiniaturizationDielectric substrate
The invention discloses a small-size broadband antenna, and the antenna comprises a radiator, an insulating dielectric substrate, and a metal back cavity. The metal back cavity is a U-shaped cavity which is formed by one lower bottom surface and two opposite side walls (left and right). The insulating dielectric substrate covers a top surface opening of the metal back cavity. The radiator is shaped like a plane, and is printed on the upper surface of the insulating dielectric substrate. The radiator consists of two fan-shaped units and two microstrip lines. The top points of the two fan-shaped units form feed points of the radiator. The two fan-shaped units are symmetrically distributed at the left and right sides of the insulating dielectric substrate, and the feed points of the two fan-shaped units are opposite and are separated by a certain distance. Each microstrip line is a bent extending line. Two ends of each microstrip line are respectively connected to the bottom end points of the two fan-shaped units at the same side. The two microstrip lines are symmetrically distributed at front and back sides of the insulating dielectric substrate. According to the invention, the size of the antenna is reduced, and the antenna meets the detection requirements of a system for a target.
Owner:GUILIN UNIV OF ELECTRONIC TECH
Dual-band antenna
InactiveCN105305095AGuaranteed Radiation EfficiencyImprove communication performanceRadiating elements structural formsPolarised antenna unit combinationsDielectric plateDual band antenna
The invention discloses a dual-band antenna, which comprises a bottom plate reflecting surface, a first dielectric plate and a second dielectric plate, wherein the first dielectric plate and the second dielectric plate are arranged in an intersection manner and are arranged on the bottom plate reflecting surface; a first vertically polarized pole is arranged on the first dielectric plate; the first vertically polarized pole comprises a first radiator and first antenna ground; a second horizontally polarized pole, a third vertically polarized pole and a fourth vertically polarized pole are arranged on the second dielectric plate; the second horizontally polarized pole comprises a second radiator and second antenna ground; the third vertically polarized pole comprises a third radiator and third antenna ground; the fourth vertically polarized pole comprises a fourth radiator and fourth antenna ground; the first pole and the second pole form a dipole which works on a first frequency band; and the third pole and the fourth pole form the dipole which works on a second frequency band. According to the dual-band antenna, the interference among the poles can be avoided under the condition of not adopting an isolator; and meanwhile, the radiation efficiency of the antenna can also be ensured, so that the communication performance of the antenna is effectively improved.
Owner:KUANG CHI INTELLIGENT PHOTONIC TECH
Electronic device
ActiveCN111430893AGuaranteed OrientationOrientation hasRadiating elements structural formsAntennas earthing switches associationEngineeringAcoustics
The invention discloses an electronic device, and belongs to the technical field of antennas. The electronic device comprises a metal middle frame, a sound cavity shell, a sound cavity metal body, a sound cavity metal supporting sheet and a feed source. The sound cavity shell is fixed on the metal middle frame, the sound cavity metal body and the sound cavity metal supporting sheet are arranged inan inner cavity of the sound cavity shell at intervals, and the sound cavity metal body and the metal middle frame are arranged in an insulating manner. The feed source is used for feeding an excitation signal into the sound cavity metal body to excite the sound cavity metal body to resonate at a first resonant frequency, and the excitation signal is also coupled to the sound cavity metal supportsheet through a gap between the sound cavity metal body and the sound cavity metal support sheet to excite the sound cavity metal support sheet to resonate at the first resonant frequency. Accordingto the application, when the feed source feeds the excitation signal to the sound cavity metal body, the electronic device can be in the working mode of a microstrip antenna with the 1 / 2 working wavelength, so that the high-efficiency radiation and directionality of the electronic device are ensured.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD
Terminal having reconfigurable antenna
ActiveCN111146570AMeet omnidirectional needsImplement refactoringSimultaneous aerial operationsAntenna supports/mountingsReconfigurable antennaHemt circuits
The invention provides a terminal with a reconfigurable antenna. The terminal comprises a non-grounding metal frame, an alloy bottom plate, a feed source, a suspension metal body, a first grounding circuit and a second grounding circuit, wherein the feed source is connected with the non-grounding metal frame, the non-grounding metal frame is connected with the suspension metal body, the suspensionmetal body serves as a suspension reference ground, the first grounding circuit comprises a first control switch and a first grounding point, the first signal end of the first control switch is connected with the non-grounding metal frame, the second signal end of the first control switch is connected with the first grounding point, the first grounding point is used for connecting the alloy bottom plate, the second grounding circuit comprises a second control switch and a second grounding point, the first signal end of the second control switch is connected with the suspension metal body, thesecond signal end of the second control switch is connected with the second grounding point, and the second grounding point is used for connecting the alloy bottom plate. According to the terminal provided by the invention, the reconstruction of the antenna radiation direction in the narrower and narrower trend of the clearance zone is realized, and the omnidirectional requirement of the antennain the terminal can be met.
Owner:QINGDAO HISENSE MOBILE COMM TECH CO LTD
Coplanar Vivaldi antenna with L-shaped slot line
ActiveCN113571890AImproving Impedance MatchingExpand the lower limit of the working frequency bandRadiating elements structural formsAntennas earthing switches associationDielectric substrateVivaldi antenna
The invention belongs to the technical field of antennas, and particularly relates to a coplanar Vivaldi antenna with an L-shaped slot line. The antenna comprises an antenna dielectric substrate, an antenna radiation module and a microstrip line-via hole feed structure; the antenna radiation module is divided by the L-shaped slot line to form an upper metal radiation patch and a lower metal radiation patch; the L-shaped slot line is composed of two sections of linear slot lines and a gradually-changed slot line; the linear slot line parallel to the horizontal central axis of the antenna dielectric substrate plays a role in connection in the L-shaped slot line, and forms the L-shaped slot line together with the linear slot line with an open circuit at the tail end and the gradually-changed slot line; the gradually-changed slot line is provided with a trumpet-shaped opening, is symmetrical about the horizontal central axis of the dielectric substrate and is in exponential gradual change, and the microstrip line is coupled with a linear slot line playing a connecting role in the L-shaped slot line. Impedance matching of the antenna at low frequency is improved through a simple structure, the working frequency band of the antenna is remarkably expanded, miniaturization of the antenna is achieved, and meanwhile the radiation efficiency of the antenna is guaranteed.
Owner:中国人民解放军63660部队
Mobile phone antenna and mobile phone
ActiveCN101388489ASmall sizeGuaranteed Radiation EfficiencyAntenna supports/mountingsRadiating elements structural formsResonant cavityDouble negative
The invention provides a cell phone antenna and a cell phone, wherein the cell phone antenna comprises a dielectric substrate, a rectangular conductive patch which is arranged on one side of the dielectric substrate and a metal floor which is arranged on the other side of the dielectric substrate, wherein the metal floor is provided with double negative material, and a double negative material resonant cavity is formed by the double negative material, the rectangular conductive patch and the dielectric substrate, and the double negative material resonant cavity is along the width which is less than the distance between two radiating sides of the rectangular conductive patch and is parallel to the dielectric substrate, the interface of the double negative material resonant cavity and a double positive material resonant cavity which is fixedly provided by the dielectric substrate is parallel to the two radiating sides of the rectangular conductive patch and is crossed with two non-radiating sides of the rectangular conductive patch. The cell phone antenna can greatly reduce the electric size of an antenna under the premise of guaranteeing necessary radiation efficiency and transmission gain.
Owner:HUAWEI DEVICE CO LTD
Mobile terminal and method for improving antenna performance of mobile terminal
ActiveCN106329055ASuccessfully elicitedHigh bandwidthSimultaneous aerial operationsAntenna supports/mountingsAntenna bandwidthBeam direction
The invention discloses a mobile terminal and a method for improving an antenna performance of a mobile terminal. The mobile terminal comprises a PCB, a support frame, an antenna, and a parasitic branch. The support frame for installing the antenna is installed on the PCB by a conductive connecting element and is connected with the main board of the PCB. The antenna installed on the support frame is separated from the connecting element. The parasitic branch connected with the connecting element is arranged at one side of the antenna at an interval and is used for improving the antenna bandwidth and / or radiation wave beam direction. According to the mobile terminal, connection with the main board is realized by connection of the parasitic branch and the fixed support, thereby realizing successful leading out of the parasitic branch; and then on the basis of the routing way of the parasitic branch, layout is carried out to increase the antenna bandwidth and guarantee the radiation efficiency of the antenna.
Owner:ZTE CORP
Transmission line assembly, antenna assembly and mobile terminal
ActiveCN114498041AGuaranteed Radiation EfficiencyGuarantee the quality of signal transmissionSimultaneous aerial operationsAntenna supports/mountingsRadio frequency signalOperating frequency
The invention provides a transmission line assembly, an antenna assembly and a mobile terminal, relates to the technical field of communication, and aims to solve the problem of transmission line clutter. A transmission line and a first filter are included. The transmission line is used for transmitting radio frequency signals, and the transmission line is provided with a first end and a second end. Wherein the transmission line comprises an inner conductor and an outer conductor, the first filter is connected with one end of the outer conductor of the transmission line, and the first end of the outer conductor is grounded through the filter. According to the transmission line assembly provided by the invention, the filter is additionally arranged between the outer conductor and the ground, so that the transmission line can be ensured to go down to the ground within a working frequency range, and the clutter position can be moved, and therefore, the clutter can be tuned, and adverse effects generated by the clutter can be reduced.
Owner:HUAWEI TECH CO LTD
A terminal with a common radiator antenna
ActiveCN110911842BImprove isolationAvoid Crosstalk SignalsSimultaneous aerial operationsAntenna supports/mountingsControl engineeringControl switch
The present application provides a terminal with a common radiator antenna. The terminal includes a non-grounded metal frame, a first feed source, a second feed source, a first metal body, a second metal body, a first control switch, and a second Control switch; the first signal end of the first control switch is respectively connected to the first metal body and the non-grounded metal frame, and the second signal end of the first control switch is used to connect to the first feed source of the terminal and to control the first feed source The signal connection between the first metal body and the non-ground metal frame; the first signal end of the second control switch is respectively connected to the second metal body and the non-ground metal frame, and the second signal end of the second control switch is used to connect The second feed source of the terminal is used to control the signal on-off between the second feed source and the second metal body and the non-grounded metal frame. The antenna terminal with a common radiator provided by the present application ensures the radiation efficiency of multiple antennas with a common radiator in the terminal, and realizes high isolation between multiple antennas with a common radiator.
Owner:QINGDAO HISENSE MOBILE COMM TECH CO LTD
Gateway device
PendingCN114497996AReduce stressGuaranteed Radiation EfficiencyAntenna supports/mountingsRadiating elements structural formsEngineeringMechanical engineering
The invention provides gateway equipment, which comprises a shell and an antenna, the shell is provided with an arc-shaped mounting surface, the antenna comprises a radiator, the radiator is arranged in an arc shape, the radian of the radiator is consistent with that of the arc-shaped mounting surface, the radiator comprises a first end and a second end which are opposite to each other, the first end and the second end are attached to the arc-shaped mounting surface, and the radiator is provided with a hollow part. The hollow part is located between the first end and the second end. According to the gateway equipment provided by the invention, the radiator is arranged in the arc shape and is consistent with the radian of the arc-shaped mounting surface, so that the fitting degree between the radiator and the arc-shaped mounting surface is higher, and meanwhile, the hollow part is arranged between the two ends of the radiator, so that the stress of the radiator can be reduced, and the service life of the radiator is prolonged. Therefore, the first end and the second end are not easy to warp when being attached to the arc-shaped mounting surface, and the mounting form of the radiator mounted on the arc-shaped mounting surface can be maintained, so that the radiation efficiency and gain of the radiator are effectively ensured.
Owner:FEIBIT ELECTRONICS TECH CO LTD
electronic device
ActiveCN103531882BGuaranteed Radiation EfficiencyMeet the needs of appearance designAntenna supports/mountingsRadiating elements structural formsRadio frequency signalFeed point
The invention provides an electronic device, which includes a metal casing, a first opening, a first metal wiring, a first grounding point and a first current zero point. The first opening runs through the metal casing. The first metal wiring is located in the first opening, and the first end of the first metal wiring is electrically connected to the side of the first opening, and the second end of the first metal wiring has a first feeding point. The first ground point and the first current zero point are located on the side of the first opening. The metal shell utilizes the first exciting path from the first feeding point to the first grounding point to form a first loop antenna to receive or transmit a first radio frequency signal.
Owner:ACER INC
Circuit board and electronic device with the circuit board
ActiveCN107004952BImprove radiation efficiencyGuaranteed Radiation EfficiencyAntenna couplingsCouplingResonance
A circuit board (1) and an electronic apparatus having the circuit board (1). The circuit board (1) comprises: an antenna (2); a conductive line integrated around the antenna (2); and a de-coupling resonance unit (4), wherein the de-coupling resonance unit (4) is arranged between the antenna (2) and the conductive line so as to isolate the antenna (2) from an electromagnetic field of the conductive line.
Owner:SZ DJI TECH CO LTD
Antenna module and client front-end equipment
PendingCN112421221AReduce gainLow Directivity CoefficientSimultaneous aerial operationsAntenna supports/mountingsMulti bandEngineering
The invention relates to an antenna module and client front-end equipment. The antenna module comprises a substrate and an antenna, wherein the substrate has a first surface and a second surface opposite to each other, the antenna is arranged on the first surface and comprises more than three radiation units in rotational symmetry, the included angles between the adjacent radiation units are equal, each radiation unit comprises a first radiation group and a second radiation group which are in mirror symmetry, the first radiation group at least comprises a first radiation arm and a second radiation arm which are arranged at an interval, the length of the first radiation arm is greater than that of the second radiation arm, the second radiation group at least comprises a third radiation armand a fourth radiation arm which are arranged at an interval, the third radiation arm is arranged corresponding to the first radiation arm and used for radiating a first frequency band signal, and thefourth radiation arm is arranged corresponding to the second radiation arm and used for radiating a second frequency band signal. When the antenna module is used as a transmitting antenna, the characteristic of multi-band low directivity coefficient can be obtained, the gain of the transmitting antenna can be reduced, and the requirements of regional laws and regulations are met.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD
Electronic equipment
The invention discloses electronic equipment. The electronic equipment comprises an equipment main body which is provided with a display unit; a fixing part which is connected with the equipment main body, and can be used for fixing the electronic equipment at the first position of a user; a battery which is arranged on the fixing part, is electrically connected with the equipment main body, and is used for supplying power to the equipment main body; and a wireless receiving-transmitting unit which is arranged on the fixing part, is connected with the equipment main body, and is used for receiving and transmitting signals. Through adoption of the electronic equipment provided by the invention, the technical problem of low radiation efficiency of the wireless receiving-transmitting unit due to great interference of a display screen to the wireless receiving-transmitting unit in the electronic equipment in the prior art is solved. The technical effect of increasing the radiation efficiency of the wireless receiving-transmitting unit is achieved.
Owner:LENOVO (BEIJING) CO LTD
A low-profile cross-shaped dipole for multi-frequency base station antenna
ActiveCN109546334BSmall cross sectionReduce occlusionAntenna supports/mountingsRadiating elements structural formsHemt circuitsEngineering
The invention discloses a low profile cross-shaped vibrator for a multi-frequency base station antenna. The vibrator comprises a horizontal feed medium plate, two vertical feed medium plates and fourantenna vibrator arms. The two vertical feed medium plates are respectively a -45 DEG vertical feed medium plate and +45 DEG vertical feed medium plate. Two sides of the upper ends of the two verticalfeed medium plates are respectively provided with a notch matched with the vibrator arm. An end portion of an end of each antenna vibrator arm has a channel matched with thickness of the vertical feed medium plate. One end of the antenna vibrator arm is clamped in the notch of the vertical feed medium plate, and the notch of the vertical feed medium plate is also clamped in a channel on the end of the antenna vibrator arm. A microstrip circuit is disposed on the front surface of the horizontal feed medium plate. The horizontal feed medium plate has a cross-shaped groove matched with the two vertical feed medium plates. The cross section of a radiation arm of the vibrator is relatively small, and blocking of a high frequency vibrator can be effectively reduced, thereby reducing interference to the high frequency vibrator.
Owner:ZHONGTIAN BROADBAND TECH +1
Loudspeaker box structure
InactiveCN102006531BGuaranteed Radiation EfficiencyReduce the lower limit of low frequency reproductionFrequency/directions obtaining arrangementsTransducer casings/cabinets/supportsLower limitResonant cavity
Owner:东莞市信方科技有限公司
Ultraviolet oxidation water purification method and device
InactiveCN110040814AAchieve water purification effectWill not consumeWater/sewage treatment by irradiationWater treatment compoundsPurification methodsLow voltage
The invention relates to the technical field of water disinfection and purification. The embodiments of the invention provide an ultraviolet oxidation water purification method and device. The methodincludes the following steps: emitting ultraviolet light of 253.7 nm used for being reacted with an oxidizing substance and ultraviolet light of 185 nm used for radiating to to-be-purified water basedon a low-voltage ultraviolet lamp so as to generate hydroxyl radicals to oxide organic matters in the to-be-purified water, wherein the low-voltage ultraviolet lamp is sealed in a quartz glass sleeveand the space between two layers of quartz glass of the quartz glass sleeve is filled with inert gas and / or nitrogen. In this way, the ultraviolet oxidation water purification method and device realize that no oxidizing substance is added in a water purification process and can ensure the radiation efficiency and water purification effect of the ultraviolet light.
Owner:FOSHAN COMWIN LIGHT & ELECTRICITY
Method for improving working performance of antipodal Vivaldi antenna
ActiveCN114006159AImprove workabilityReduce reflected voltageRadiating elements structural formsAntennas earthing switches associationVivaldi antennaElectromagnetic pulse
The invention belongs to the technical field of electromagnetic fields and microwaves, and provides a method for improving the working performance of an antipodal Vivaldi antenna. A current conduction structure and a current grounding structure are constructed on one side of an antenna feed end, and resistance loading is carried out to connect the current conduction structure and the current grounding structure, so that a grounding loop for antenna reflection current is formed, and the working performance of the antenna is improved. Based on the method provided by the invention, the reflection current of the antipodal Vivaldi antenna can be obviously absorbed, so that the reflection voltage of the feed end when the antenna radiates the ultra-wide-spectrum electromagnetic pulse is effectively reduced, the technical risks and problems that an ultra-wide-spectrum pulse source is damaged, the service life is shortened and the like caused by overlarge reflection voltage can be avoided, and the radiation efficiency of the antenna on the ultra-wide spectrum electromagnetic pulse is ensured to the greatest extent; and meanwhile, secondary reflection of the feed end of the antenna can be reduced, and waveform trailing of a radiation field is effectively eliminated. In addition, the working frequency band lower limit of the antenna can be expanded to a certain extent, and antenna miniaturization is achieved.
Owner:中国人民解放军63660部队
Low Radar Cross Section Reflectarray Antenna Based on Artificial Surface Plasmons
ActiveCN111883932BGuaranteed radiation gainReduced Radar Cross SectionAntennasScattering cross-sectionDielectric substrate
Owner:XIDIAN UNIV +1
Electronic equipment
ActiveCN111430893BGuaranteed OrientationOrientation hasRadiating elements structural formsAntennas earthing switches associationEngineeringAcoustics
The application discloses an electronic device, which belongs to the technical field of antennas. The electronic device includes: a metal middle frame, a sound cavity shell, a sound cavity metal body, a sound cavity metal support piece and a feed source. The sound cavity shell is fixed on the metal middle frame, the sound cavity metal body and the sound cavity metal support sheet are arranged in the inner cavity of the sound cavity shell at intervals, and the sound cavity metal body is insulated from the metal middle frame. The feed source is used to feed the excitation signal into the metal body of the sound cavity to excite the metal body of the sound cavity to resonate at the first resonant frequency, and the excitation signal is also coupled to the metal support of the sound cavity through the gap between the metal body of the sound cavity and the metal support plate of the sound cavity plate to excite the metal support plate of the sound cavity to resonate at the first resonant frequency. In the present application, when the feed source feeds the excitation signal to the metal body of the sound cavity, the electronic device can be in the working mode of a microstrip antenna with a working wavelength of 1 / 2, which ensures the efficient radiation and directivity of the electronic device.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD
Mobile terminal and method of improving antenna performance of the mobile terminal
ActiveCN106329055BSuccessfully elicitedHigh bandwidthSimultaneous aerial operationsAntenna supports/mountingsTelecommunicationsComputer science
Disclosed in this paper are a mobile terminal and a method for improving antenna performance of the mobile terminal. The mobile terminal includes: a PCB mainboard; a bracket for mounting an antenna, and the bracket is mounted on the PCB mainboard via a conductive connecting piece, and the bracket is connected with the mainboard ground of the PCB mainboard; an antenna mounted on the bracket and spaced from the connecting piece; and a parasitic branch connected with the connecting piece, and the parasitic branch is arranged beside the antenna and is spaced apart from the antenna, and the parasitic branch is used to improve the bandwidth and / or radiation beam direction of the antenna.
Owner:ZTE CORP
A Miniaturized Broadband Antenna
ActiveCN105958189BFlat input impedanceHigh bandwidthRadiating elements structural formsAntennas earthing switches associationDielectric substrateMiniaturization
The invention discloses a miniaturized broadband antenna, which comprises a radiator, an insulating medium substrate and a metal back cavity; the metal back cavity is a U-shaped cavity formed by a lower bottom surface and two left and right opposite side walls; the insulating medium substrate covers the The opening of the upper top surface of the metal back cavity; the radiator is printed on the upper surface of the insulating dielectric substrate in a planar shape; the radiator is composed of 2 fan-shaped units and 2 microstrip lines; the vertices of the 2 fan-shaped units form the radiator Feed point; two fan-shaped units are symmetrically distributed on the left and right sides of the insulating dielectric substrate, and the feed points of the two fan-shaped units are opposite and separated by a certain distance; each microstrip line is a curved and extended line; the microstrip The two ends of the line are respectively connected to the bottom end points on the same side of the two fan-shaped units; the two microstrip lines are symmetrically distributed on the front and rear sides of the insulating dielectric substrate. The invention can reduce the size of the antenna and meet the detection requirements of the system for the target.
Owner:GUILIN UNIV OF ELECTRONIC TECH
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