42 results about "Slot antenna" patented technology

This invention provides a broadband circularly polarized slot antenna for partial discharge detection in high-voltage electrical equipment, comprising a first dielectric substrate, a second dielectric substrate, a coupled feed structure, an annular slotted metal patch, a metal ground, a shorting pin, a metal post, and a coaxial line. The first dielectric substrate is disposed parallel to the upper center of the second dielectric substrate. The coupled feed structure is printed on the upper surface of the first dielectric substrate, the annular slotted metal patch is printed on the lower surface of the first dielectric substrate, and the metal ground is printed on the upper surface of the second dielectric substrate. An annular slot is formed in the center of the annular slotted metal patch, and the coupled feed structure is coupled to the annular slot. This invention can better match the complex electromagnetic environment formed by multiple reflections inside high-voltage equipment, thereby improving the acquisition efficiency and detection reliability of partial discharge signals, thus completely solving the detection blind zone problem caused by the random polarization of discharge signals in traditional linearly polarized antennas.

Embodiments of the present application provide an electronic device, comprising a front shell, the front shell is provided with a slot antenna, the slot antenna comprises a slot structure and a feed structure; the slot structure is formed at the edge of the front shell and is axisymmetric about the center line of the slot antenna, the slot structure comprises a first slot and two second slots located on both sides of the first slot, the first slot is axisymmetric about the center line, the two second slots are axisymmetric about the center line, and the feed structure is located at the middle position of the first slot; the feed structure feeds the slot antenna to excite a target antenna mode; the target antenna mode comprises a CM slot mode or a frequency-doubled mode having the same characteristics as the CM slot mode. Thus, the high-SAR antenna mode is eliminated, the low-SAR antenna mode is retained, and external passive SAR reduction is not required, thereby solving the technical problems of related art SAR reduction technology requiring higher power consumption and more complex circuit design, saving cost and reducing power consumption.

An electronic device and a chip package structure are disclosed. The chip package structure includes a package substrate including an insulating layer and two metal layers embedded in the insulating layer. One of the metal layers is adjacent to an outer surface of the insulating layer and includes an antenna layout section and a plurality of frequency adjustment pads. The antenna layout section is recessed from an edge to form a slot antenna and a plurality of configuration holes respectively located on opposite sides of the slot antenna. The plurality of frequency adjustment pads are respectively located in the plurality of configuration holes and do not contact the antenna layout section. The plurality of frequency adjustment pads are exposed to the outer surface. The antenna layout section has a plurality of slot-type adjustment pads exposed to the outer surface, which are adjacent to a bottom wall of the slot antenna and respectively located on the opposite sides of the slot antenna.

An apparatus comprising an antenna array including multiple planar slot antenna elements with integrated feedlines, wherein the positions, orientation angles, and feedline lengths of the antenna elements are mutually uncorrelated to produce spatial and temporal incoherence. The apparatus may include a substrate having irregular ridge faces supporting the antenna elements, a switching circuit configured to activate subsets of the antenna elements according to randomized or pseudo-random sequences, and a controller operatively coupled to the switching circuit.

Embodiments of this application provide an antenna structure. The antenna structure includes a first radiation stub, a second radiation stub, and a first feed. The first radiation stub includes two grounding points and a first feed point. The first feed point is located between the two grounding points, and the two grounding points are configured for grounding. The first radiation stub is spaced apart from a ground connected to the two grounding points to form a slot, and the first radiation stub forms a slot antenna. The second radiation stub has a gap with the first radiation stub, and the second radiation stub is coupled to the first radiation stub through the gap. The first feed is electrically connected to the first feed point of the first radiation stub and is configured to provide a first feed signal for the first radiation stub by using the first feed point.

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.

A packaging carrier includes an insulating layer and two metal layers embedded in the insulating layer. One of the two metal layers arranged adjacent to an outer surface of the insulating layer includes an antenna layout segment and a plurality of frequency adjustment pads. The antenna layout segment has a slot antenna recessed from an edge thereof and a plurality of layout holes that are located at two opposite sides of the slot antenna. The frequency adjustment pads are respectively located in the layout holes and are not in contact with the antenna layout segment. The frequency adjustment pads are exposed from the outer surface. The antenna layout segment has a plurality of slot-shape adjustment pads exposed from the outer surface. The slot-shape adjustment pads are arranged adjacent to a bottom of the slot antenna and are located at the two opposite sides of the slot antenna.

This invention provides a dual-polarized butterfly slot antenna, comprising a radiating component, a reflecting component, and a cavity component. The dual-polarized butterfly slot antenna has mutually perpendicular length, width, and height directions. The radiating component and the reflecting component are arranged parallel to each other along the height direction. Projections along the height direction onto the same plane perpendicular to the height direction are made, with the projection of the radiating component located within the projection of the reflecting component. A cavity component is fixedly connected to each end of the reflecting component along the width direction, and each cavity component extends along the height direction towards the radiating component. The side of each cavity component away from the reflecting component is engaged with the radiating component. The radiating component includes two single-polarized units, each with a butterfly slot. The technical solution provided by this invention can solve the problems of complex structure, difficulty in assembly and production, and low radiation gain in existing dual-polarized antennas.

The application relates to the technical field of wearable antennas, in particular to a metal frame smart watch antenna based on a double-feed technology, which comprises a metal frame, a metal ground plate, a parasitic metal, a first feed port, a second feed port, a feed source, a power divider and a phase shifter; the feed source forms two feed paths through the power divider, one of which feeds into the first feed port, and the other feeds into the second feed port through the phase shifter. The antenna can be configured to connect a slot antenna to the first feed port and connect a patch antenna to the second feed port so that the two antennas work simultaneously, or configured to connect the two feed ports to the same patch antenna so that the patch antenna generates a double mode. The scheme is favorable for improving the low-frequency antenna efficiency, improving the bandwidth performance, and realizing double-feed work under the condition of a single excitation source.

The present invention relates to an antenna device comprising a low band (LB) cavity slot antenna and a high band (HB) cavity slot antenna on a single dielectric substrate. The LB cavity slot antenna comprises a LB resonant cavity and one or more 3D slots extending through a top surface and side surfaces of the LB resonant cavity. The HB cavity slot antenna comprises a HB resonant cavity and one or more 2D slots extending through a top surface of the HB resonant cavity. Each of the LB cavity slot antenna and the HB cavity slot antenna can be fed by one or more feed elements. The antenna device can efficiently operate in both the HB and the LB of the radio spectrum. Due to the one or more 3D slots, the size of the LB cavity slot antenna can be reduced (without affecting the performance of the antenna device), such that the antenna device can be integrated in a housing of a handheld electronic device.

The application discloses an electronic device, and relates to the technical field of electronic products. The electronic device comprises a screen module, a frame, a back cover and an antenna assembly, the screen module, the frame and the back cover are sequentially stacked, the screen module and the frame are provided with a first radiation gap, and the frame and the back cover are provided with a second radiation gap; the antenna assembly comprises a first antenna unit, a second antenna unit, a third antenna unit and a fourth antenna unit, the first antenna unit and the second antenna unit are located at a first corner of the electronic device, the third antenna unit and the fourth antenna unit are located at a second corner of the electronic device, and the first antenna unit and the third antenna unit are located between the screen module and the frame, and the second antenna unit and the fourth antenna unit are located between the frame and the back cover; a radiation part of the first antenna unit and a radiation part of the third antenna unit face the first radiation gap, and a radiation part of the second antenna unit and a radiation part of the fourth antenna unit face the second radiation gap.

In some embodiments, a radio frequency identification (RFID) system may include at least one Ultra High Frequency (UHF) antenna component, a conductive loop having a largest dimension that is smaller than the wavelength of radiation transmitted at a Microwave Frequency (MW). The conductive loop may define a gap and an RFID chip may be electrically coupled to the conductive loop. The conductive loop may be configured to be resonant at an Ultra High Frequency (UHF) and less resonant at Microwave Frequency (MW). The antenna component may be selected from the group consisting of a dipole antenna, a monopole antenna, a loop antenna, or a slot antenna.

This application discloses an electronic device, relating to the field of electronic devices. An electronic device includes: a frame and a coupling element; the frame includes a metal frame and a plastic component, the metal frame has a break, the coupling element is connected to the metal frame, and regions of the metal frame located on both sides of the break are coupled through the coupling element; the plastic component wraps around the outside of the metal frame and the coupling element, and fills the break; the metal frame has a feed point, and the metal frame and the coupling element form a slotted antenna. This application at least solves the problem of low frame strength caused by the break.

The application discloses an integrated cavity slot antenna, which comprises a PCB core plate, the PCB core plate has a first surface and a second surface opposite to the first surface, a first metal sheet is arranged on the first surface, a second metal sheet is arranged on the second surface, and a plurality of first metallized through holes are further arranged on the PCB core plate and penetrate from the first surface to the second surface; the PCB core plate has a first side edge, a second side edge, a third side edge and a fourth side edge, the first metallized through holes are distributed on the first side edge, the second side edge and the third side edge to form a magnetic wall structure; the first metallized through holes, the first metal sheet and the second metal sheet are integrally arranged on the PCB core plate. The first metallized through holes are directly made on the PCB core plate, the first metal sheet and the second metal sheet are arranged on the first surface and the second surface of the PCB core plate respectively to form the cavity slot antenna, the cavity slot antenna is directly formed on the PCB core plate, and no additional installation is needed, so that the tolerance problem of antenna assembly is solved.

A wearable computing device can include a slot antenna formed by a gap between a housing (such as a highly conductive housing) and a PCB within the highly conductive housing and by a back cavity between the highly conductive bracket and PCB or by a back cavity between the highly conductive bracket and the highly conductive housing. The printed circuit board is coupled to either the highly conductive bracket or highly conductive housing through a matching circuit and direct feed. The PCB is positioned near a display window of the device, above a battery and highly conductive bracket. This configuration allows for a relatively small dead band in the display window, a larger PCB, compact and mechanically simple configuration, and superior water resistance.

The application discloses a kind of millimeter wave rectangular waveguide slot antenna structure device, including two groups of thinner and parallel first metal plate, second metal plate and two first metal conductive layer with rectangular waveguide transmission line, second metal conductive layer, the first metal plate, second metal plate and first metal conductive layer, second metal conductive layer are sequentially crossed and stacked, the present application provides a new type of rectangular waveguide slot antenna structure device, with cost advantage, can be used for electromagnetic wave emission or reception, or for both, with very good antenna performance, can work at different frequencies, such as 30GHz-300GHz range, but also outside this range, while can be used as independent antenna can also be integrated with other components can also be assembled into larger array with multiple waveguide slot antenna groups.

An image pickup apparatus is capable of wireless communication with an external device and includes a housing made of metal and having a slit and provided in one of a front surface on an object side, a rear surface, and a side surface of the image pickup apparatus, and a feed substrate configured to supply power to the slit to enable wireless communication using the slit as a slot antenna.

This disclosure relates to an antenna and an electronic device. The antenna includes: a mid-frame housing, including a bottom wall and a side wall connected to the bottom wall, the bottom wall having a radiating slot; a conductive frame, the conductive frame and the bottom wall enclosing a cavity with an opening, and electrically connected to the side wall; the radiating slot is located outside the cavity and adjacent to the opening. By forming a cavity antenna through the conductive frame and the mid-frame housing, and by forming a frame slot antenna through the radiating slot on the bottom wall of the mid-frame housing, an antenna combination with two excitation methods is formed. The antenna can radiate signals not only from one side of the conductive frame but also from one side of the bottom wall of the mid-frame housing through the radiating slot. This significantly improves the omnidirectionality of the cavity antenna, solves the problem of weak signals in local directions, improves signal strength during user use, and enhances the user experience.

Disclosed in the present invention are a waveguide slot antenna and a control method therefor. The antenna comprises a feed port layer, a slow-wave line layer, and a radiation slot layer which are stacked in sequence; the feed port layer is provided with a feed port for inputting electromagnetic waves or outputting electromagnetic waves; one end face of the slow-wave line layer facing the feed port layer is provided with a serpentine slow-wave cavity, one end of the serpentine slow-wave cavity is provided with a feed signal end, and the feed signal end is correspondingly connected to the feed port; a plurality of waveguide radiation slots are arranged at intervals in a serpentine channel of the serpentine slow-wave cavity; and a plurality of radiation cavity units having one-to-one correspondence to the waveguide radiation slots are arranged at intervals on one end face of the radiation slot layer facing the slow-wave line layer, a plurality of radiation slots are arranged at intervals in each radiation cavity unit, and one end of each radiation cavity unit is provided with a signal connection end correspondingly coupled to the waveguide radiation slot. The present invention can increase the antenna scanning angle, thereby meeting application scenarios requiring a large antenna scanning range.

The application discloses a ridge waveguide slot antenna, which comprises a radiation layer, a coupling slot layer and a feed network layer; the coupling slot layer is a ridge waveguide, the radiation layer is arranged on the side with a ridge of the ridge waveguide in a laminated mode, a coupling hole array is arranged on the interface of the laminated mode, and the radiation layer is provided with a radiation slot; a PCB board is arranged in a box body of the feed network layer, a ridge waveguide-microstrip line transition structure is arranged on one side of the PCB board, one end of the transition structure is connected with the ridge of the ridge waveguide, the other end of the transition structure is connected with a microstrip line printed on the PCB board, and the microstrip line leads to a probe port on the outer wall of the box body; the ridge waveguide slot antennas are arranged in parallel with each other to form a ridge waveguide slot antenna array, the feed network layers of the ridge waveguide slot antennas in the ridge waveguide slot antenna array are located on the same side, and the feed network layers are connected with each other through the probe ports to form a sub-network. The application has a compact structure, can effectively reduce the area and profile height of the ridge waveguide slot antenna array under the premise of ensuring the performance of the ridge waveguide slot antenna.

This application provides a feeding network, antenna module, and electronic device, relating to the field of antenna technology, to improve the problem of grating lobe suppression in beam scanning of slot antenna arrays based on leaky wave antennas. The leaky wave antenna includes N one-dimensional slot arrays arranged in an array. Each one-dimensional slot array includes M slot elements arranged along a first direction, each slot element connected to a switching device. N and M are integers satisfying N≥2 and M≥2. The switching device can control the slot elements to open or close, thereby regulating the energy concentration direction and achieving beam scanning at a fixed frequency. The feeding network includes N output terminals. Each of the N output terminals corresponds one-to-one with and is electrically connected to the N one-dimensional slot arrays. At least two of the N output terminals output signals with different phases. The constructive interference and destructive interference of these two phase-different signals in the non-target direction are reduced, thereby achieving grating lobe suppression.

The application discloses a microwave hot air mixed heating type preoxidation furnace adopting a slit antenna, which comprises a furnace body, a heater, a fan and a microwave heating device, a wire running area is formed in the furnace body, the wire running area has a width W, the microwave heating device comprises a microwave source and slit antennas, the number of the slit antennas is multiple, each slit antenna is connected with the microwave source, a wave leakage hole is arranged in the narrow surface of each slit antenna, the narrow surfaces of the slit antennas are distributed on the top surface or the bottom surface of the wire running area, the wave leakage holes are distributed along the length direction of the narrow surfaces, and the wave leakage holes of the multiple slit antennas are arranged in a matrix in the wire running area. The application can shorten the preoxidation time and reduce the reaction temperature.

The application provides a communication device, which comprises a metal shell, a floor and a parasitic branch. The metal shell and the floor have a gap therebetween, the metal shell comprises a first grounding point, a second grounding point and a first feeding point, the gap between the metal shell and the floor between the first grounding point and the second grounding point is a first slot, so that the metal shell and the floor form a first slot antenna between the first grounding point and the second grounding point, and the first feeding point is used for feeding the first slot antenna. The parasitic branch is arranged along the extension direction of the first slot antenna, and the parasitic branch is coupled and fed through the first slot antenna, the parasitic branch comprises a grounding end and a first open end, and the parasitic branch is grounded at the grounding end. Along the extension direction, the grounding end is located in the middle of the first slot, and the first open end is located at the first grounding point. The parasitic branch will produce parasitic resonance under the excitation of the first slot antenna, so that the radiation body efficiency and the bandwidth of the antenna can be improved.

This invention relates to the field of antenna technology, specifically to an array cavity slot antenna based on a SIW structure. It includes a 1×2 triangular cavity compact array element. Each array element comprises a dielectric substrate, an upper metal layer, and a lower metal layer. Metal vias are arranged in an equilateral triangle shape to form the equivalent metal sidewalls of the antenna SIW cavity. The upper metal layer includes a microstrip line feed structure, and the lower metal layer has a slender rectangular slot etched at the cavity edge. Two array elements are connected via a 1-to-2 equal power divider. This invention replaces the metal cavity with a planar SIW structure, significantly reducing the volume and achieving a low-profile, high-integration, and high-radiation-efficiency cavity slot SIW antenna. Furthermore, the use of a 1×2 array compact triangular SIW cavity with cavity slots further enhances the compact antenna design. This invention inherits the high radiation efficiency of cavity radiating antennas while achieving low profile and high integration.

The application provides a multi-frequency microwave excited plasma electric heat thruster. It aims to solve the problem that the microwave cannot be effectively absorbed after the critical plasma electron density under the excitation of a single frequency microwave source. The thruster adopts a multi-port excitation system and a frequency band separation design, and is excited by a discontinuous microwave power source with different duty cycles, so that the output can be flexibly adjusted, the plasma density and uniformity in the time dimension of the discharge process can be accurately controlled, the waveguide system adopts a waveguide slot antenna to form a waveguide slot array, the energy distribution is adjusted by accurately controlling the slot position, inclination and size, and the microwave energy in the spatial dimension of the thruster is finely adjusted. The design effectively breaks through the microwave absorption efficiency bottleneck of single frequency excitation, reduces the interference between microwave sources, improves the coupling efficiency, ensures the effective transmission of microwave energy, further improves the plasma density and uniformity, and optimizes the overall performance of the thruster.

This invention discloses a beamforming ridge waveguide slot antenna, relating to the field of slot antenna technology, and solves the problem that existing waveguide slot antennas are difficult to achieve beamforming. The key technical points are: a beamforming ridge waveguide slot antenna includes a ridge waveguide, with radiating slots arranged in the same direction and staggered along the transmission direction of the ridge waveguide on the ridge waveguide's wide, spineless wall. The radiating slots are connected to the waveguide cavity of the ridge waveguide. A plate, connected at one end to the spineless wide wall and located within the waveguide cavity, is disposed between adjacent radiating slots. A shaped slot, corresponding to the plate, is formed on the metal ridge of the ridge waveguide, and a channel is formed between the slot wall and the lower end of the plate. By setting channels of different physical lengths, the relative phase between the radiating slots is controlled, and by setting radiating slots with different offsets, the amplitude of the radiating slots is controlled, thus achieving beamforming.

The application discloses a kind of millimeter wave dual polarization ridge waveguide slot antennas, including radar system main body, multiple horizontal polarization units are sequentially arranged and installed in one end of radar system main body, it is configured as outward radiation or receiving along the horizontal polarization electromagnetic wave of first direction, first conjugate slot is arranged between adjacent horizontal polarization units, to reduce the mutual interference in the process of horizontal polarization electromagnetic wave radiation;Multiple vertical polarization units are sequentially arranged and installed in the other end of radar system main body, it is configured as outward radiation or receiving along the vertical polarization electromagnetic wave of second direction perpendicular to first direction, second conjugate slot is arranged between adjacent vertical polarization units, to reduce the mutual interference in the process of vertical polarization electromagnetic wave radiation;Multiple connectors are respectively installed in multiple horizontal polarization units and multiple vertical polarization units, configured as emitting electromagnetic wave or receiving electromagnetic wave from multiple horizontal polarization units and / or multiple vertical polarization units.

The present disclosure provides a microstrip antenna and a phased array microstrip antenna. The microstrip antenna comprises a digital circuit layer, a transceiving input layer, an antenna feed layer, an antenna radiation layer and at least one transmission line; the transceiving input layer is attached to a first surface of the antenna feed layer, and the transceiving input layer is configured to generate a radio frequency signal and transmit the radio frequency signal to the antenna feed layer through the at least one transmission line under the control of the digital circuit layer; the antenna feed layer is provided with a gap at a preset point, the antenna feed layer is used for coupling the radio frequency signal to the antenna radiation layer through the gap, and the preset point is away from the center of the antenna feed layer; and the antenna radiation layer is attached to a second surface of the antenna feed layer, the second surface is away from the first surface, and the antenna radiation layer is used for emitting the radio frequency signal; wherein one end of the at least one transmission line passes through the digital circuit layer, the transceiving input layer and the antenna feed layer in sequence and abuts against the antenna radiation layer.