SUZHOU LUXSHARE TECHNOLOGY CO., LTD.

Provided is a phase shifter including: a supporting board, a circuit board, a transmission structure, and an adjusting structure. The circuit board and the transmission structure are disposed on two sides of the supporting board. The adjusting structure is rotatably connected to the circuit board and the supporting board. The transmission structure includes a gear, a gear rack and an arc-shaped internal gear. The gear is engaged with the gear rack and the arc-shaped internal gear. The arc-shaped internal gear is connected to the adjusting structure. The circuit board is provided with a first strip line. The adjusting structure is provided with a second strip line. The gear rack moves to drive the gear to rotate and further drives the arc-shaped internal gear to rotate. The adjusting structure rotates along with the arc-shaped internal gear, such that the second strip line contacts different positions of the first strip line.

A cavity filter includes a housing, an input resonator and an output resonator. The input resonator includes a first sheet resonant body, an input end extending outward from one side of the first sheet resonant body and a first branch extending outward from the first sheet resonant 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 resonant body, an output end extending outward from one side of the second sheet resonant body, and a second branch extending outward from the second sheet resonant 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.

The embodiment discloses a resonator and a filter, the resonator comprises a housing, a cover plate, a metal resonant rod, a buffer, and a dielectric member. A resonant cavity with one side opening is formed inside the housing. The cover plate covers the outside of the opening. The metal resonant rod, buffer, and dielectric member are fixed in the resonant cavity, and sequentially welded. The linear expansion coefficient of the buffer is between the linear expansion coefficients of the metal resonant rod and the dielectric member, so that the deformation generated by the buffer during welding is between the deformations generated by the metal resonant rod and the dielectric member, providing a buffering effect when the metal resonant rod and the dielectric member deform, avoiding cracking at the connection between the metal resonant rod and the dielectric member due to significant differences in deformation during welding.

A radio frequency adjustment structure includes an adjusting screw and a top cover. The adjusting screw includes a cap portion and a rod portion positioned at a central axis of the cap portion. The rod portion defines a first direction. The cap portion includes a number of internal threads spirally surrounding in the first direction. The top cover includes a base portion and a cylinder portion protruding from the base portion. The top cover defines a through hole extending through the cylinder portion and the base portion in the first direction. The cylinder portion includes a number of external threads spirally surrounding in the first direction. The internal threads and the external threads are mated with each other when the rod portion is received in the through hole. An installation depth of the rod portion relative to the top cover is changeable for a frequency adjustment.

A resonator includes a body shaft portion, a resonant disk portion and a coupling face portion. The body shaft portion has a top end and a bottom end. An inner cavity is slotted between the top end and the bottom end. The resonant disk portion is integrally formed on the top end. The coupling face portion is integrally formed on the bottom end. The body shaft portion includes a first outer surface and the coupling face portion includes a second outer surface. A first connecting arc surface is formed between the first outer surface and the second outer surface. The inner cavity has a central axis. In a transverse section perpendicular to the central axis, a wall thickness T of the body shaft portion is 0.5 mm˜1 mm and a first arc length R1 of the first connecting arc surface is no more than 0.25 mm.

A lightning protection structure includes an antenna jointing interface, a main jointing rod, a cavity filter, a printed circuit board, an induction coil and a notch filter. The main jointing rod passes through a wall surface of the cavity filter. The main jointing rod is coupled to the antenna jointing interface. The induction coil is arranged in the notch filter. The induction coil includes a spiral body portion, a first end portion and a second end portion. The first end portion and the second end portion extend from the spiral body portion in opposite directions. The first end portion of the induction coil extends through the top cover of the notch filter. The first end portion of the induction coil is coupled to the printed circuit board. The second end portion of the induction coil is coupled to a bottom wall of the notch filter.

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.

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.

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.

Embodiments of the present disclosure disclose a filter and a resonator including a housing, a cover plate, a resonant rod, and fixing members. The housing has a resonant cavity. The cover plate is connected to the housing. The resonant rod is disposed within the resonant cavity. The resonant rod includes a main body and connecting lugs arranged on the outer side of the main body. The main body has an inner cavity. Each connecting lug is provided with a connecting through-hole. Threaded holes are formed at the bottom of the resonant cavity. Fixing members passes through the connecting through-hole and extends into the threaded holes to connect the resonant rod to the housing. The connecting lugs position the fixing members outside the inner cavity, reserving sufficient space for the inner cavity, ensuring ample adjustment space during tuning of the resonator, improving its safety, and effectively reducing tuning power consumption.