Abstract: An actuator includes a base body, a gear, a rack, a coupling member, a number of connecting elements, and a number of telescopic rods. Two driving rods work asynchronously. A first rod extends along the transverse direction and a number of second rods extending along the transverse direction. The gear meshes with the rack. The rack is slidable on the base body along the transverse direction. The second rods are rotable around their own second central axes when they are respectively driven by the first rod. The coupling member is sleeved on the first rod and selectively mating with one of the second rods. The coupling member is fixedly connected to the rack. Each connecting element is moveable on the corresponding telescopic rod. The present disclosure is beneficial to miniaturization, and power transmission of the present disclosure is more stable and more precise.

Abstract: The embodiments of the disclosure discloses an cavity filter in which a sealed resonant cavity is formed by using an adjusting end cover and a body, and a positional relationship between the resonator and the adjusting end cover is changed by using a deformable adjusting end cover. Therefore, during the adjustment of the performance parameters of the cavity filter, the resonant cavity may be kept clean, so as to prevent metal debris or external dust from entering the resonant cavity and affecting the filtering performance of the cavity filter. The adjusting end cover is configured to be driven by the driving body to produce a deformation relative to the resonator. The parameter adjustment range of the cavity filter is improved, so that the cavity filter may adapt to more frequency bands, thereby improving the communication quality of the communication device.

Abstract: The embodiments of the present disclosure disclose a vibrator arm and a vibrator structure. The vibrator arm comprises an extension branch and a bending branch, and the bending branch bends to one side of the extension direction of the extension branch. Thus, the space occupation of the vibrator arm is reduced, especially when the number of the vibrator arm is large, the antenna formed through the vibrator arm is smaller and the structure is more compact.

Abstract: The embodiments of the present disclosure disclose a cavity filter. An inner wall of a resonant cavity is provided with a plurality of non-coplanar extension sections inclined toward an outer wall; and meanwhile, each extension section gradually extends toward an end cover from a bottom shell. Thus, a volume of the resonant cavity is increased, making an insertion loss smaller; an outer dimension of the cavity filter is further reduced, making an overall weight lighter; and meanwhile, during casting of a shell portion of the cavity filter, the difficulty of demolding is reduced.

Abstract: The embodiments of the present disclosure disclose a low-frequency vibrator unit, an antenna component, and a base station. A vibrator arm is provided to bend towards the bottom, and a director is provided with a window corresponding to an extension branch. Therefore, in an aspect, the vibrator arm occupies less space, such that more low-frequency vibrator units may be arranged in the same space. In another aspect, the window provided in the director reduces influences thereof on a high-frequency vibrator unit below and improves a cross-polarization ratio of the antenna component, such that signal space directivity of the antenna component is stronger. In yet another aspect, the antenna component occupies less space in the base station.

Abstract: The embodiments of the present disclosure provide an antenna vibrator and an antenna, and the antenna vibrator includes a radiation board. The radiation board is a polygon, a part of the radiation board bends downward to form a plurality of support portions and a plurality of hollowed holes, and a plurality of corners of the radiation board bend downward to form a plurality of bending angle portions. The support portion serves to support and connect. At the same time, by forming the bending angle portion on the radiation board, isolation of the vibrator is optimized, and after the vibrator is arrayed, a cross-polarization ratio meets a conventional indicator in a case of not adding a boundary condition.

Abstract: A power divider includes a substrate. The substrate includes an input terminal, a microstrip, a short-circuit stud, an open-circuit stud, a first output terminal and a second output terminal. One end of the microstrip is electrically connected to the input terminal. One end of the short-circuit stud is electrically connected to the microstrip. The first output terminal is electrically connected to the other end of the microstrip and the open-circuit stud. The second output terminal is electrically connected to the other end of the microstrip. Through impedance matching of the open-circuit stud at the first output terminal, the range of the radiated electric field at the second output terminal is reduced, and the bend slope attenuation may be carried out under the wide frequency band of 700 MHz. Therefore, the radiated electric field of the antenna can still be reduced without adjusting the antenna gain in a wide frequency band.

Abstract: The embodiments of the present disclosure provide an antenna vibrator and an antenna, and the antenna vibrator includes a radiation board. A center region of the radiation board is provided with a plurality of slits, and the radiation board is bent downwards at a peripheral region of each slit to form a support portion and a hollowed-out hole. The support portion serves to support and connect. At the same time, by forming the slit on the radiation board, the isolation of the vibrator is optimized, and the cross polarization ratio after the vibrator being arrayed may meet conventional index without adding a boundary condition.

Abstract: The embodiments of the present disclosure provide an antenna vibrator and an antenna, and the antenna vibrator includes a radiation board. A partial region of the radiation board is bent downwards to form a plurality of support portions and a plurality of corresponding first hollowed-out holes, and a region between two adjacent first hollowed-out holes is bent downwards to form a plurality of bending portions and a plurality of corresponding second hollowed-out holes. The support portion serves to support and connect. At the same time, by forming the bending portion and the second hollowed-out hole on the radiation board, the isolation of the vibrator is optimized, and the cross polarization ratio after the vibrator being arrayed may meet conventional index without adding a boundary condition.

Abstract: A brush phase shifter includes an actuating member, a gear assembly, a main printed circuit board and a brush member. The gear assembly includes a driving gear, a transmission gear and a linkage gear. The driving gear is a bevel gear. The transmission gear includes a bevel gear portion and a cylindrical gear portion. The bevel gear portion has a large end and a small end. The cylindrical gear portion is integrally formed at the large end of the bevel gear portion. The linkage gear is a cylindrical gear. The driving gear meshes with the bevel gear portion of the transmission gear. The cylindrical gear portion of the transmission gear meshes with the linkage gear. The brush member is fixedly connected with the linkage gear. The brush member is rotatably arranged on the main printed circuit board. The present disclosure precisely controls the phase change and realize miniaturization.

Abstract: Provided are a coaxial filter and a communication radio frequency device. The communication radio frequency device includes the coaxial filter. The coaxial filter includes a housing having a resonant cavity, a cover plate, and a resonator. The cover plate corresponds to the resonant cavity and covers the housing. The resonator includes plurality of elastic pieces, a connection portion, and a body portion which are sequentially connected from one end to another end. The connection portion is connected to a bottom of the resonant cavity.

Abstract: A cavity filter includes a housing, an input resonator and an output resonator. The input resonator includes a first sheet-like resonant body, an input end extending outward from one side of the first sheet-like resonance body and a first branch extending outward from the first sheet-like resonance body and/or the input end, and the input end extends out of the housing through the input through hole. The output resonator includes a second sheet-like resonant body, an output end extending outward from one side of the second sheet-like resonance body, and a second branch extending outward from the second sheet-like resonance body and/or the output end, and the output end extends out of the housing through the output through hole. The lengths of the first branch and the second branch are both a quarter wavelength of a resonant frequency of the cavity filter.

Abstract: The present disclosure provides a phase shifting device and a base station antenna. The phase shifting device comprises a driving module, a transmission rack plate, and a plurality of annular phase shifters. The driving module comprises a transmission rod. The transmission rack plate comprises a transmission nut, through which the transmission rack plate is pivotally connected to the transmission rod of the driving module. The plurality of annular phase shifters are disposed on the periphery of the transmission rack plate at intervals and are respectively engaged with the transmission rack plate. The rotation of the transmission rod drives the transmission nut to move back and forth on the transmission rod, and along with the back and forth movement of the transmission nut, the transmission rack plate drives the plurality of annular phase shifters to rotate.

Abstract: A base station antenna including a substrate, a plurality of oscillators, a control assembly, and a dielectric plate is provided. The substrate includes a first surface and a second surface disposed opposite to the first surface. The plurality of oscillators are disposed on the first surface of the substrate. The control assembly is disposed on the second surface of the substrate and electrically connected to the plurality of oscillators. The dielectric plate is disposed corresponding to the first surface of the substrate, and the plurality of oscillators are disposed between the first surface and the dielectric plate. Through the above arrangement, the base station antenna can have lower construction cost and debugging labor cost, and can eliminate influences of an antenna cover on antenna radiation performance at the same time.

Abstract: Disclosed is a base station antenna, which includes a substrate and an antenna sub-array. The antenna sub-array includes a feeding plate, a plurality of radiation units, and two metal baffles. The feeding plate is disposed on the substrate. The plurality of radiation units are disposed on the feeding plate along a first direction and electrically connected to the feeding plate. The two metal baffles are respectively disposed on two sides of the feeding plate along a second direction perpendicular to the first direction, and each metal baffle extends along the first direction. Each metal baffle is provided with an opening slot, and the length of the opening slot along the first direction corresponds to a wavelength of a center frequency of the base station antenna. Therefore, the base station antenna can achieve the technical effects of converging the horizontal beam width and optimizing the cross polarization ratio.

Abstract: Disclosed is a cavity filter including a housing, and a first sheet-shaped resonant rod, a second sheet-shaped resonant rod, and a third sheet-shaped resonant rod disposed in the housing. The first sheet-shaped resonant rod includes a first upright section and a first extension section extending from one side of the first upright section. The second sheet-shaped resonant rod includes a second upright section and a second extension section extending from one side of the second upright section. The second upright section, the first upright section, and the third sheet-shaped resonant rod are connected to the housing, and the first extension section and the second extension section extend toward each other. Capacitive coupling is formed between the first and second sheet-shaped resonant rods. Capacitive coupling or inductive coupling is formed between the second and third sheet-shaped resonant rods and between the first and third sheet-shaped resonant rods.

Abstract: An oscillator antenna unit and an antenna are disclosed. The oscillator antenna comprises a plurality of oscillator arms and a guiding sheet. The plurality of oscillator arms extend outwards along a middle axle of the oscillator antenna unit and are arranged at an interval from one another. Extension directions of the oscillator arms form a first plane, and the guiding sheet parallel to the first plane is arranged above the oscillator arms and has a predetermined interval therewith. The antenna comprises at least two oscillator antenna units arranged in an array. Therefore, the technical solution of the embodiment of the present disclosure may improve the isolation and achieve a better decoupling effect.