79 results about "Dielectric resonator" patented technology

The application discloses a compact dielectric resonator antenna module, which comprises a substrate assembly and a dielectric resonator arranged on the substrate assembly. The dielectric resonator comprises a connecting part and four isosceles trapezoidal columns. The height of the connecting part is less than the height of the isosceles trapezoidal columns. The four isosceles trapezoidal columns are evenly distributed around the connecting part. The short bottom surface of the isosceles trapezoidal column is connected with the connecting part. The long bottom surface of the isosceles trapezoidal column has a compensation part extending away from the connecting part. The connecting part, the isosceles trapezoidal column and the compensation part are integrally formed into an integrated structure. The dielectric resonator antenna module has a compact structure and a small overall volume. The dielectric resonator only needs to be installed once as a whole, thereby reducing the alignment error generated in the installation process and facilitating the guarantee of the antenna performance. The height difference between the connecting part and the isosceles trapezoidal column in the height direction achieves a decoupling effect to some extent, thereby reducing the coupling between the isosceles trapezoidal columns. The dielectric resonator antenna module can cover the N258 frequency band in 5G.

The invention provides a metal patch loaded miniaturized dielectric resonator antenna for a base station, and relates to the technical field of wireless communication, a specific parasitic metal patch is introduced at the bottom of a dielectric resonator, the limitation that the traditional design only depends on geometric dimension to adjust the frequency is broken through, the TM12 high-order mode frequency is obviously pulled down to be close to a fundamental mode TM10 and fusion is realized, and the antenna has the advantages of being simple in structure and convenient to use. On the premise that the size of the antenna is not increased, the working bandwidth is expanded to 3.4-4.0 GHz. Through the structural design, a cross-shaped groove structure is loaded in the central area of the dielectric resonator, a current path of a TM20 parasitic mode is cut off accurately, directional diagram distortion and cross polarization interference caused by the mode are effectively suppressed, and it is ensured that the antenna has stable radiation performance. Therefore, the antenna has excellent broadband and radiation characteristics, can still keep compact physical size, low profile structure and simple processing technology, and meets the urgent demand of a microwave frequency band wireless communication terminal on high performance and miniaturization antennas.

This invention provides a silicon-based dielectric resonant antenna with adjustable beamwidth, comprising a beamwidth adjustment structure, an antenna substrate and a dielectric resonator, an excitation antenna, and solder bumps. The multilayer antenna substrate and dielectric resonator are arranged sequentially from top to bottom, with an air cavity formed in the middle. The excitation antenna is located at the bottom of the air cavity. The beamwidth adjustment structure is located on top of the top layer of the antenna substrate and dielectric resonator. A through-silicon via (TSV) is located in the middle of the bottom layer of the antenna substrate and dielectric resonator, with solder bumps located at the bottom of the TSV. This invention significantly reduces the antenna size and improves its radiation efficiency by using high-resistivity silicon as the antenna dielectric. By introducing an air cavity structure and adjusting the beamwidth through the top-layer beamwidth adjustment structure, the antenna application frequency can be changed according to usage, the feeding method can be modified and optimized according to application conditions, and it can be stacked with chips to achieve three-dimensional heterogeneous high-density integration.

A device for measuring a property of a substrate comprises an enclosure, two resonators, and two probes. The substrate has a top surface, and the enclosure defines a cavity for placing the substrate. The resonators extend into the cavity of the enclosure. The probes extend into the cavity, and each of the probes comprises a loop that extends about an axis that is substantially parallel to the top surface of the substrate so that the probes are operable to excite a transverse magnetic mode signal in the cavity.

The application discloses a dielectric resonator, comprising: a cavity; a cover plate, comprising a first cover plate and a second cover plate, the second cover plate being crimped on the first cover plate; a tuning screw being installed on the cover plate; a metal resonant rod being fixed on the bottom of the cavity; a dielectric resonant rod having an upper end surface and a lower end surface, the upper end surface being in contact with the first cover plate, and the lower end surface being in contact with the metal resonant rod; the first cover plate having a first opening, a first slot portion and a second slot portion, the first slot portion being located radially outside the first opening and axially above the dielectric resonant rod, an elastic member being arranged in the first slot portion, and the second slot portion being located radially outside the first slot portion. The dielectric resonator adopts a double-layer thick cover plate, and through designing an inner and outer double-cut slot structure on the first cover plate, the upper and lower end surfaces of the dielectric resonant rod are kept in good contact in a simple and controllable structure.

The invention relates to a dual-mode resonator, a dual-mode filter and communication equipment. The dual-mode resonator comprises a first resonator, a second resonator and a first tuning part, the first resonator is a dielectric resonator, the first resonator is provided with a first tuning hole, and the first tuning hole extends from the top face of the first resonator to the bottom in the axial direction. The second resonator is a metal resonator, the second resonator is connected to the top surface of the first resonator in an overlapping manner, the second resonator is provided with an avoiding hole, and the avoiding hole is aligned with the first tuning hole in the axial direction of the second resonator and is communicated with the first tuning hole. The first tuning piece extends into the first tuning hole from the avoiding hole and can adjust the position in the axial direction. When the first tuning part performs tuning operation, the dual-mode resonator does not need to be turned over, so that debugging is more convenient. Moreover, the first tuning part is located at the top of the dual-mode resonator, so that compared with the mode that the first tuning part is arranged at the bottom of the dual-mode resonator, the structure is simplified, and assembly is facilitated.

The application discloses an antenna with digital regulation of radiation characteristics, uses a medium resonator loaded with an electromagnetic super surface as a radiator, introduces a double-slot feed structure and a half-wavelength phase delay microstrip line to complete polarization and phase reconfiguration, and further realizes digital discretization of polarization and phase. The application can flexibly control the radiation state of electromagnetic waves by selecting different coding sequences. Meanwhile, the radiation characteristic digital regulation array antenna formed based on the antenna structure arrangement of the application has the advantages of small volume, low cost, wide bandwidth, multiple functions, multi-beam dynamic scanning and high design freedom, and can realize flexible beam and polarization conversion, and can also perform digital modulation on the radiation wave by controlling the coding sequence of each element, and is suitable for future beam-controllable intelligent communication or direct signal modulation communication application.

A millimeter wave frequency band conductivity test cavity comprises a dielectric resonator, a supporting structure and a metal shielding cavity. The dielectric resonator is placed in the metal shielding cavity through a support, and the dielectric resonator adopts an anisotropic dielectric; through cooperation of the dielectric resonator, the supporting structure and the metal shielding cavity, the working mode of the cavity is TE01n, an electric field rotates in an X-Y plane, and the Z axis has no electric field component; and the Z-axis direction is the direction in which the supporting structure supports the dielectric resonator. When the test cavity is used for testing, the conductivity of the sample can be calculated. The conductivity test of the metal material has a good application prospect in the aerospace technology.

This invention discloses an apparatus and method for measuring the frequency characteristics of the effective conductivity of a dielectric-metal interface, belonging to the field of electronics technology. Specifically, it includes a test base, a calibration component, and a support column. By setting an absorbing ring and a stretchable metal ring inside the test base, the loss in the non-operating mode is increased, the boundary conditions of the non-operating mode are changed, thereby disrupting the excitation conditions of the non-operating mode and improving the purity of the operating mode. By adjusting the height of the stretchable metal ring inside the dielectric resonator, a single device can accurately measure the effective conductivity of a single sample dielectric-metal interface at multiple discrete frequency points. It can be used for the effective evaluation of information such as the roughness of the copper cladding layer at the dielectric-metal interface.

The embodiment of the present application relates to the technical field of antenna, and discloses a dual-frequency dielectric resonant antenna, which comprises a substrate, a feeding unit and an antenna unit; the substrate is provided with a plurality of feeding slots; the feeding unit is arranged on the substrate and is coupled with the feeding slots; the antenna unit comprises a plurality of dielectric resonators, the plurality of dielectric resonators are arranged on the substrate, and the plurality of dielectric resonators are sequentially connected in the same direction to form an integrated antenna unit, and one dielectric resonator is connected with one feeding slot.The embodiment of the present application sequentially connects the plurality of dielectric resonators in the same direction to form an integrated antenna unit, so that the integrated plurality of dielectric resonators only need to be bonded and fixed once, the installation of the antenna unit can be completed, the installation process is simplified, the installation alignment error caused by multiple installations of the antenna unit is reduced, and the performance simulation error and actual error of the antenna unit are avoided from being increased.

This invention relates to a dual-channel third-order dielectric filter, comprising an orthogonal right-angled metal cavity containing orthogonally arranged first, second, and third dual-mode dielectric resonators. The first dual-mode dielectric resonator is located at the orthogonal intersection point and cascaded with the coupling windows of the second and third dual-mode dielectric resonators. The filter has input and output port groups at the bottom of the metal cavity, with the input port group cooperating with the output port group via the three resonators. By setting the three orthogonally arranged and cascaded resonators, the two filter channels share the first dual-mode dielectric resonator, reducing the number of resonators and lowering the overall size and weight while ensuring filtering performance. Simultaneously, first and second dielectric strips of equal height are provided at the cross-angle of the second and third dual-mode dielectric resonators to suppress higher-order spurious modes, improve channel isolation, overcome the difficulty in controlling electromagnetic coupling in discrete solutions, and simplify the assembly process through integrated design.

The invention provides a dielectric resonator and a broad-spectrum high-selectivity microwave and millimeter wave band-pass filter chip, the dielectric resonator comprises a dielectric substrate, an inductive part and a capacitive part, the inductive part comprises a first conductive strip, a first metalized through hole and a second metalized through hole, the capacitive portion includes a second conductive strip and a bottom conductive substrate. The broad-spectrum high-selectivity microwave and millimeter wave band-pass filter chip comprises the dielectric resonator, an input coupling module and an output coupling module. The dielectric resonator and the broad-spectrum high-selectivity microwave and millimeter wave band-pass filter chip are well balanced in performance, bandwidth, size and frequency adaptability.

The application provides a dielectric resonator, comprising: a dielectric resonant cavity, the dielectric resonant cavity comprising a solid dielectric body and a metal plating layer wrapping an outer surface of the dielectric body; a capacitively loaded structure embedded in the dielectric body, and an end surface of the capacitively loaded structure being in contact with the metal plating layer of a surface of the dielectric resonant cavity, the capacitively loaded structure having a cross section with an area greater than that of the end surface; and a quality factor of the dielectric resonator being related to a volume-surface ratio of the capacitively loaded structure.

A filter device includes a laminated body, plate electrodes, shield terminals, a plurality of resonator portions, and a plurality of capacitor portions facing the plurality of resonator portions in a Y-axis direction, respectively. Each of the resonator portions is formed by a plurality of resonant electrode elements. Each of the capacitor portions is formed by a plurality of capacitive electrode elements. A part in each of the plurality of resonant electrode elements that faces the capacitive electrode elements extends in a direction along the Y-axis direction. The plurality of capacitive electrode elements extend in a direction that intersects with the Y-axis direction.

The application relates to a Yagi antenna and a communication device. The Yagi antenna comprises a substrate, the substrate has opposite first and second surfaces, an antenna body, the antenna body is arranged on the first surface of the substrate and comprises a reflector and a driver, and a plurality of dielectric resonators, the dielectric resonators are arranged along the axial direction of the substrate to form a dielectric resonator array, wherein a separation sheet is arranged between two adjacent dielectric resonators, the dielectric resonator array is located on the first surface of the substrate and is adjacent to the driver. The communication device comprises the Yagi antenna. By adding the separation sheet and the design of the dielectric resonator with a TE111 oscillation mode, the dielectric resonator array composed of the separation sheet and the plurality of dielectric resonators is adopted, the interval between the dielectric resonators is reduced under the premise of ensuring the unchanged radiation performance, the overall size of the Yagi antenna is effectively reduced, and the miniaturization degree of the Yagi antenna is improved.

This application relates to the field of communications, providing a multimode resonator and filter. The multimode resonator has at least two resonance modes: HE mode and HE mode. The multimode resonator includes a resonator housing, a dielectric resonator, and a coupling structure. The dielectric resonator is disposed within the resonator housing and connected to a first wall of the housing. The two electric field polarization directions of the HE mode are along a first radial direction and a second radial direction, respectively, and the first and second radial directions intersect perpendicularly at the central axis of the dielectric resonator. The coupling structure is disposed at one end of the dielectric resonator and intersects perpendicularly at the central axis of the dielectric resonator. The coupling structure is set at an angle to both the first and second radial directions to achieve HE dual-mode coupling. The multimode resonator can achieve HE dual-mode coupling through a simplified and optimized coupling structure, resulting in better coupling performance. This optimizes the structural design, coupling design, and overall performance of the multimode resonator, and facilitates the simulation design of the multimode resonator.

The present disclosure relates to electronic devices with curved dielectric resonator antennas. An electronic device is provided that can be provided with a phased antenna array having a curved dielectric resonant element. The curved dielectric resonant element can have a first section, a second section that is not parallel to the first section, and an angled surface that couples the first section to the second section. One or more feed probes can be coupled to the first section to excite the dielectric resonant element. A reflector can be provided on the angled surface to direct electromagnetic energy from the first section to the second section, and vice versa. The curved dielectric resonant element can exhibit a smaller overall height than a dielectric resonator having a straight column of dielectric material, thereby allowing a reduction in the thickness of the electronic device. Despite the reduction in overall height, the angled surface and the reflector can optimize the radio frequency performance of the antenna.

The invention discloses a high-gain dielectric resonator antenna unit and related electronic equipment, and the high-gain dielectric resonator antenna unit comprises a dielectric substrate, a dielectric resonator, a feed structure and a director. Wherein the feed structure is coupled with the dielectric resonator to feed the dielectric resonator; the dielectric resonator is columnar, the director is attached to the upper surface of the dielectric resonator, and the lower surface of the dielectric resonator is fixedly connected with the dielectric substrate; the director is an annular metal sheet, and the outer diameter of the director is consistent with the outer diameter of the dielectric resonator. Through the dual effects of the boundary constraint effect and the phase guiding effect, the gain of the dielectric resonator antenna unit is improved, the performance of a directional diagram is improved, the original effective bandwidth is kept, meanwhile, the sectional area and the overall size of the antenna cannot be remarkably increased, the requirement for miniaturization of the antenna can be met, and the antenna is suitable for large-scale popularization and application. And the method can well adapt to various application scenes with limited space.

The application discloses a medium resonator antenna with adjustable beam deflection angle and electronic equipment, which comprises a substrate, a medium resonator and a containing part. The medium resonator comprises a first medium resonator and at least one second medium resonator. The first medium resonator is in the shape of a cuboid, and the second medium resonator is in the shape of a right triangular prism. The shape of the at least one second medium resonator after being sequentially stacked is a right triangular prism with a bottom surface being a right triangle. The containing part is provided with a containing cavity with an opening. The first medium resonator is arranged on the substrate. The containing part is located on one side of the first medium resonator, and the opening of the containing cavity faces the first medium resonator. Each second medium resonator is arranged in the containing cavity in a slidable manner. When the at least one second medium resonator sequentially slides out of the containing cavity, the at least one second medium resonator is sequentially stacked on the side of the first medium resonator away from the substrate. The application can realize flexible adjustment of the beam deflection angle.

The invention relates to the technical field of antennas, in particular to a broadband circularly polarized antenna based on a metasurface and dielectric resonant cavity dual multiplexing technology. The antenna comprises a dielectric substrate, a dielectric resonator and a metasurface, the metasurface comprises a plurality of asymmetrical metasurface units distributed in a matrix mode, each asymmetrical metasurface unit comprises a circular ring metasurface part and an asymmetrical cross metasurface part, and each asymmetrical cross metasurface part comprises a first strip-shaped part and a second strip-shaped part. The width of the first strip-shaped part is smaller than that of the second strip-shaped part, the two ends of the first strip-shaped part penetrate through the circular ring metasurface part, and the length of the second strip-shaped part is smaller than the diameter of the inner side of the circular ring metasurface part. According to the broadband circularly polarized antenna based on the metasurface and dielectric resonant cavity dual-multiplexing technology, the axial ratio bandwidth performance of the antenna is further improved through the metasurface and dielectric resonant cavity dual-multiplexing technology and introduction of the asymmetric cross-shaped metasurface part to the circular ring metasurface part, and the actual application requirement of the antenna is met.

The application discloses a terahertz dielectric folded planar metasurface light collimator and application. The light collimator comprises a top planar metasurface and a bottom planar metasurface which are arranged in parallel and are composed of dielectric materials; the top planar metasurface and the bottom planar metasurface have a first interval distance; the top planar metasurface comprises two grating structures with a second interval distance, which are used for selecting a desired linearly polarized terahertz wave; the bottom planar metasurface comprises a bottom support plate and a plurality of rectangular anisotropic dielectric resonators arranged on the bottom support plate; the plurality of rectangular anisotropic dielectric resonators have different resonant frequencies in the transverse axis direction and the longitudinal axis direction; and a terahertz source is arranged at the center of the bottom support plate.

The present invention belongs to the field of electronic information functional materials and microelectronic devices, and specifically provides a Li 2.12 MgTi3O8-based microwave dielectric ceramic material and a preparation method thereof, aiming to solve the problem that the Li 2.12 MgTi3O8 microwave dielectric ceramic cannot be applied to LTCC due to its high sintering temperature. The present invention first proposes to add LiF with a low sintering temperature as a sintering aid to the Li 2.12 MgTi3O8-based microwave dielectric ceramic material, and scientifically defines its addition amount as x wt%, 0.75 < x ≤ 1.50, so as to reduce the sintering temperature of the Li 2.12 MgTi3O8 microwave dielectric ceramic below the melting point of the silver electrode, and achieve sintering at 850°C to 950°C, thus meeting the application requirements of LTCC; at the same time, the quality factor Q×f is increased to 81000 GHz to 98000 GHz, and the relative dielectric constant ε r is 22.5 to 26.5, and the resonant frequency temperature coefficient τ f is 3.0 to 6.5 ppm / °C. It can be used as a substrate material for electronic devices such as antennas, dielectric resonators, filters, and microstrip lines, and has important application prospects in the fields of microwave communication, radar systems, satellite communication, etc.

The application discloses a kind of circular polarization Ka wave band broadband rectenna based on dielectric resonator, it is related to electronic circuit technical field, including dielectric substrate, dielectric resonator being arranged above dielectric substrate and ground plate being arranged below dielectric substrate, and rectifier circuit;The edge of the long side of the dielectric substrate is equipped with a plurality of metal through holes that penetrate the dielectric substrate, and the plurality of through holes form a substrate integrated waveguide structure, a planar transmission microstrip line, a first gradual microstrip line and an SIW upper metal layer connected in sequence are printed on the dielectric substrate, a rectangular slot is formed in the middle of the SIW upper metal layer, and a third gradual microstrip line, a second gradual microstrip line and a radiation patch connected in sequence are arranged in the rectangular slot;One end of the planar transmission microstrip line is connected to the rectifier circuit.The application has the advantages of simple structure, wide impedance bandwidth, stable gain, small size, and realizes circular polarization and operation in the millimeter wave band.

Embodiments described herein relate to an apparatus that includes a dielectric plate, and a plurality of dielectric resonators coupled to the dielectric plate. In an embodiment, the plurality of dielectric resonators are distributed across the dielectric plate in a pattern that is asymmetric in order to provide a plasma uniform flux density to an underlying substrate as the substrate is rotated.

Embodiments described herein relate to an apparatus that includes a dielectric plate, and a plurality of dielectric resonators coupled to the dielectric plate. In an embodiment, the plurality of dielectric resonators are distributed across the dielectric plate in a pattern that is asymmetric in order to provide a plasma uniform flux density to an underlying substrate as the substrate is rotated.

A dielectric filter is provided including at least two connected dielectric resonators and a hole group formed between two adjacent dielectric resonators. Each dielectric resonator includes a dielectric body and a resonant cavity. The dielectric body includes a top surface and a bottom surface along a first direction Z of the dielectric filter. The resonant cavity runs through the top surface or the bottom surface. The dielectric body further includes a first side surface and a second side surface along a second direction Y. Each hole group includes a first hole and a second hole. Two ends of the first hole respectively run through the top surface and the bottom surface. The second hole runs through at least one of the first side surface and the second side surface. Projections of the first hole and the second hole intersect along a third direction X of the dielectric filter.

The application belongs to the technical field of antennas, and particularly relates to a directional pattern reconfigurable antenna array with high-gain end-fire beams. The application comprises a dielectric substrate, a pair of high-gain directional pattern reconfigurable end-fire antennas printed on the upper surface of the dielectric substrate, a switchable feeding structure, a rectangular metal ground printed on the lower surface of the dielectric substrate; the pair of high-gain directional pattern reconfigurable end-fire antennas are respectively connected with the switchable feeding structure and symmetrically arranged on the upper surface of the dielectric substrate about the vertical center line of the switchable feeding structure; each of the pair of high-gain directional pattern reconfigurable end-fire antennas comprises a dielectric resonator, a metal dipole, a transmission line and a matching branch; the dielectric resonator is covered above the metal dipole; the switchable feeding structure has six different working states of state one to state six, and the switching of the six different high-gain end-fire beams is realized by changing the on-off states of the four PIN diodes embedded in the switchable feeding structure.

The application belongs to the field of wireless communication, and particularly relates to a pattern reconfigurable medium resonant antenna based on reflection grooves, which comprises a medium resonator, a medium substrate, a metal ground, a feeding structure, a cross-shaped groove, two pairs of reflection grooves and a bias network; wherein the medium resonator, the metal ground, the medium substrate and the feeding structure are sequentially arranged from top to bottom, the metal ground is printed on the upper surface of the medium substrate, the feeding structure is printed on the lower surface of the medium substrate, and stable feeding is realized through a gap coupling mode; the cross-shaped groove and the two pairs of reflection grooves are both arranged on the metal ground, the cross-shaped groove is accurately arranged corresponding to the central region of the medium resonator, and the two pairs of reflection grooves are symmetrically arranged at the edge regions of the medium resonator.

The invention relates to the technical field of antennas, in particular to a dielectric resonator antenna and a multimode electromagnetic excitation method, the dielectric resonator antenna comprises a dielectric substrate, a dielectric resonator element and a conductive feed assembly, and one side of the dielectric substrate is provided with a grounding plane; the dielectric resonator element is arranged on the grounding plane; the conductive feed assembly comprises a T-shaped power divider, a 180-degree annular coupler, a feed span bridge, a rectangular groove and a conductive probe; the T-shaped power divider and the 180-degree annular coupler are arranged on one side of the dielectric substrate, the T-shaped power divider is opposite to the grounding plane, and the 180-degree annular coupler is adjacent to the T-shaped power divider; the rectangular groove is arranged at the other side of the dielectric substrate and is arranged at the same side with the grounding plane; the conductive probe is arranged in the center of the dielectric resonator, and the bottom end of the conductive probe penetrates through the dielectric substrate and is connected with the microstrip line on the opposite side of the grounding plane; the dielectric resonator antenna provided by the invention has the characteristics of bandwidth and gain enhancement, and the isolation of four ports is good.

The embodiment of the application relates to the technical field of communication equipment, in particular to a dielectric resonant antenna and terminal equipment. The dielectric resonant antenna comprises a feeding part and a dielectric resonant part, and the dielectric resonant part and the feeding part are integrated parts; when the dielectric resonant part and the feeding part are connected, the plurality of dielectric resonators and the plurality of feeding units are one-to-one corresponding, so that the plurality of dielectric resonators and the plurality of feeding units can be connected through one installation action, installation precision can be ensured, and the occurrence of positioning inaccuracy caused by assembly times is reduced.