Abstract: A phase shifter and a method for preparing a phase shifter are provided. The phase shifter includes at least one phase shifter unit. The phase shifter unit includes a substrate; a first lead and a second lead on the substrate and spaced apart from each other; a bridging section on the first lead and the second lead, wherein the bridging section is connected to the first lead and the second lead; and a third lead on a side of the bridging section away from the substrate.

Abstract: Provided are a detection substrate, a manufacturing method therefor and a flat panel detector. The detection substrate includes: a flexible substrate; a scintillator layer on a side of the flexible substrate, where the scintillator layer includes a central portion and a peripheral portion on at least one side of the central portion, the central portion and the peripheral portion are of an integrated structure, a thickness of the central portion at each position is approximately equal, and in a direction from an edge of the flexible substrate to a center of the flexible substrate, a thickness of the peripheral portion progressively increases; and a reinforcement structure, the reinforcement structure and the scintillator layer being on the same side of the flexible substrate, and the reinforcement structure at least covering part of the peripheral portion.

Abstract: A radio frequency device and an electronic device are provided. The radio frequency device includes: a first dielectric substrate and at least one phase shift unit, each including a signal electrode and a first and second reference electrodes; first and/or second reference electrodes include reference sub-electrodes arranged side by side, and first gaps between every two adjacent reference sub-electrodes; the signal electrode includes a main structure between the first and second reference electrodes and branch structures electrically connected to the main structure, and each branch structure extends into one corresponding first gap; the radio frequency device further includes membrane bridges on a side of a first insulating layer away from the first dielectric substrate, and a first insulating layer covering the branch structures, each membrane bridge spans one corresponding first gap, and a bridge floor of each membrane bridge and the first insulating layer have a first distance therebetween.

Abstract: The present disclosure provides an antenna unit and a multi-beam antenna. The antenna unit includes: a first dielectric substrate; a reference electrode layer; a first feed line and a radiation layer, the first feed line being electrically coupled to the radiation layer; and at least one layer of metasurface including a second dielectric substrate and at least one patch unit, the patch unit including a plurality of patch structures arranged at intervals and side by side. For any one of the patch units, an electromagnetic wave radiated by the radiation layer has different transmission phases after passing through the plurality of patch structures, and transmission phases of the plurality of patch structures increase or decrease sequentially.

Abstract: The present disclosure provides an MEMS switch device and an electronic apparatus. The MEMS switch device includes a base substrate, a membrane bridge structure, and a first ground line, a signal line and a second ground line sequentially arranged on a first side surface of the base substrate at intervals; the membrane bridge structure has a first end electrically connected to the first ground line, and a second end, opposite to the first end, electrically connected to the second ground line; and the membrane bridge structure includes a membrane bridge body structure and at least one protruding structure on the membrane bridge body structure, where the protruding structure protrudes from the membrane bridge body structure in a direction perpendicular to the first side surface of the base substrate.

Abstract: A phase shifter includes: a first substrate; a signal electrode, a first reference electrode, and a second reference electrode which are on the first substrate; a first insulating layer covering at least a side of the signal electrode distal to the first substrate; and at least one film-bridge electrode group on a side of the first insulating layer distal to the signal electrode. Each film-bridge electrode group includes film-bridge electrodes insulated from each other, and an orthogonal projection of the signal electrode on the first substrate is between orthogonal projections of the first and second reference electrodes on the first substrate. An orthogonal projection of a bridge floor of each film-bridge electrode on the first substrate partially overlaps the orthogonal projection of the signal electrode. Distances between bridge floors of the film-bridge electrodes in a same film-bridge electrode group and the signal electrode are different from each other.

Abstract: The present disclosure provides an MEMS device, a method for manufacturing an MEMS device and an electronic device, and belongs to the field of Micro-Electro-Mechanical System technology. The MEMS device includes: a first dielectric substrate and a first component on the first dielectric substrate; the first component and the first dielectric substrate enclose a movable space; the first component has a first portion corresponding to the movable space; the first portion has at least one first opening, and at least one protruding structure is on a side of the first portion close to the first dielectric substrate; orthographic projections of the at least one protruding structure and the at least one first opening on the first dielectric substrate do not overlap with each other, and a thickness of each protruding structure is smaller than a height of the movable space.

Abstract: The phase shifter includes a substrate; a first wire and second wires arranged on a side of the substrate, wherein two opposite sides of the first wire are respectively provided with the second wires, and the first wire and the second wires are arranged in parallel and insulated from each other; a hydrophobic conductive part, which is arranged crosswise with the first wire and is insulated from the first wire, and at least one end of the hydrophobic conductive part is overlapped with the second wire at one side of the first wire, and is insulated from the second wire; and a hydrophilic part, wherein a minimum distance between an orthographic projection of the hydrophilic part on the substrate and an orthographic projection of the hydrophobic conductive part that does not overlap with the second wires, in a first direction, is less than or equal to a preset value.

Abstract: A device for visible puncture includes a balloon, a canula, a needle tube, an image acquisition device, and a fluid injection tube. The balloon includes a first end including a first hole, and a second end including a second hole. The canula includes a first axial through hole. The needle tube includes a second axial through hole and is disposed in the first axial through hole. The image acquisition device is disposed in the second axial through hole. The balloon is axially disposed on the canula. The first end of the balloon is disposed on the outer wall of the front end of the needle tube, and the second end of the balloon is disposed on the outer wall of the front end of the canula. The second axial through hole includes a fluid channel disposed between the outer wall of the needle tube and the canula.

Abstract: A W-band E-plane waveguide bandpass filter includes a rectangular waveguide configured to feed a W-band signal, and a dielectric substrate. The dielectric substrate is inserted into the center of the waveguide. The dielectric substrate is provided with a spoof surface plasmon polariton (SSPP) array configured to transmit a TM-mode surface wave to achieve the bandpass filtering response.

Abstract: A W-band E-plane waveguide bandpass filter includes a rectangular waveguide configured to feed a W-band signal, and a dielectric substrate. The dielectric substrate is inserted into the center of the waveguide. The dielectric substrate is provided with a spoof surface plasmon polariton (SSPP) array configured to transmit a TM-mode surface wave to achieve the bandpass filtering response.

Abstract: An endoscope, including: a handle, a sheath tube, an endoscopic cannula, and a tensioning mechanism. The sheath tube includes a first axial guide hole and a first joint pin disposed in the first axial guide hole. The handle includes a second axial guide hole and a second joint pin disposed in the second axial guide hole. The first joint pin matches and is directly connected to the second joint pin. The sheath tube matches and connects to the handle. The handle includes a cavity and the tensioning mechanism is disposed in the cavity. The endoscopic cannula includes a flexible part extending out of the sheath tube and a rigid part fixed in the sheath tube. The flexible part includes a steering wire. The first joint pin is connected to the steering wire. The tensioning mechanism is connected to the second joint pin.

Abstract: A device for visible puncture includes a balloon, a canula, a needle tube, an image acquisition device, and a fluid injection tube. The balloon includes a first end including a first hole, and a second end including a second hole. The canula includes a first axial through hole. The needle tube includes a second axial through hole and is disposed in the first axial through hole. The image acquisition device is disposed in the second axial through hole. The balloon is axially disposed on the canula. The first end of the balloon is disposed on the outer wall of the front end of the needle tube, and the second end of the balloon is disposed on the outer wall of the front end of the canula. The second axial through hole includes a fluid channel disposed between the outer wall of the needle tube and the canula.

Abstract: A device for visibly puncturing an animal tissue or organ including a balloon, a canula, a needle tube, an image acquisition device, and a fluid injection tube. The balloon includes two ends. The canula includes a first axial through hole. The needle tube includes a second axial through hole and is disposed in the first axial through hole. The image acquisition device is disposed in the second axial through hole. The canula is a tubular structure slidable along the axial direction of the needle tube. The balloon is attached to the canula along the axial direction of the canula; the two ends of the balloon are disposed on the outer wall of the canula. The second axial through hole includes a fluid channel disposed between the outer wall of the needle tube and the inner wall of the balloon.

Abstract: An endoscopic cannula, including: a handle; a sheath; a core rod disposed in the sheath and capable of sliding along an axial direction of the sheath. The core rod includes a first channel, a second channel, and a third channel. The handle includes a first joint configured to guide a lead wire into the first channel, a second joint configured to guide water into the second channel, and a third joint configured to guide an endoscope into the third channel. The sheath includes a first end and a second end, and the second end is disposed in the handle.

Abstract: A solder wire composition may include 85 to 95 weight percent bismuth, and at least 5 weight percent copper. The solder wire composition may have a diameter of less than about 1 millimeter, and an elongation at break of at least 20%.

Abstract: A self-locking angle adjustment mechanism for an endoscope includes: an endoscope angle adjustment steel wire (5), a rotation handle (2), an endoscope handle (3) and a self-locking rotation device, wherein: an outer conical surface is provided at an external surface of the rotation shaft (7), a conical cylinder is sleeved onto the outer conical surface; a spring (14), which can drive the rotation shaft to move towards a direction of the conical cylinder or drive the conical cylinder to move towards a direction of the rotation shaft, and can force the inner conical surface to closely fit with the outer conical surface for self-locking, is located along an axial direction of the rotation shaft or conical cylinder. Through the present invention, the flexible sheath is locked stepless at any position, meeting free positioning requirement of endoscope during surgeries, reducing labor strength during surgeries, avoiding patient injuries caused by misoperations.

Abstract: An endoscope, including: a handle, a sheath tube, an endoscopic cannula, and a tensioning mechanism. The sheath tube includes a first axial guide hole and a first joint pin disposed in the first axial guide hole. The handle includes a second axial guide hole and a second joint pin disposed in the second axial guide hole. The first joint pin matches and is directly connected to the second joint pin. The sheath tube matches and connects to the handle. The handle includes a cavity and the tensioning mechanism is disposed in the cavity. The endoscopic cannula includes a flexible part extending out of the sheath tube and a rigid part fixed in the sheath tube. The flexible part includes a steering wire. The first joint pin is connected to the steering wire. The tensioning mechanism is connected to the second joint pin.

Abstract: The present invention relates to a multidirectional turning endoscope, which includes an insertion portion (2), an endoscope handle (4) and a bending driving portion (3); wherein: the bending driving portion includes a left-right driving rod, an up-down driving rod, a rotation shaft, a left turning wheel (17), a right turning wheel (18) and a spring (19); the rotation shaft includes a left half shaft (15) and a right half shaft (16); the external surface of the left half shaft and the external surface of the right half shaft respectively have a left outer conical face and a right outer conical face, a left conical cylinder and a right conical cylinder (20) are respectively sleeved to the left outer conical face and a right outer conical face; a spring (19) is located at an axial direction of the left half shaft and the right half shaft.

Abstract: A solder wire composition may include 85 to 95 weight percent bismuth, and at least 5 weight percent copper. The solder wire composition may have a diameter of less than about 1 millimeter, and an elongation at break of at least 20%.