541 results about "Split ring" patented technology

A lighting apparatus includes a back cover, an annular structure and a light module. The annular structure has surrounding wall. The surrounding wall defines a top opening. The back cover conceals the top opening. The annular structure has a bottom rim extended outwardly from a bottom border of the surrounding wall. The annular structure and the back cover are fixed as a unit to conceal the installation opening. The annular structure and the back cover are made of a fireproof material. The back cover and the annular structure defines a container space. The light module is stored within the container space. The surface rim conceals the installation opening. The bottom ring is between the surface rim and an edge border of the installation opening.

The invention relates to a miniaturized millimeter wave filtering magnetoelectric dipole antenna with high out-of-band rejection, and relates to the technical field of communication antennae, and the miniaturized millimeter wave filtering magnetoelectric dipole antenna with the high out-of-band rejection effect comprises a strip line feed structure which is used for generating a lower stop band radiation zero point; the n-shaped feed structure is used for feeding the magnetoelectric dipole; according to the magnetoelectric dipole radiator, a U-shaped groove is etched in a dipole patch, so that the size of the antenna is reduced; the parasitic metal strips are used for enhancing the radiation suppression effect of the upper stop band; the folding split rings are folded to reduce the size of the split rings and enhance the radiation suppression effect of the lower stop band at the same time; the inverted L-shaped short circuit branch is used for enhancing the radiation suppression effect of the upper stop band, the absolute bandwidth of the antenna is 21.1 GHz to 31.0 GHz, the relative bandwidth is 37.0%, the lowest gain is 5.0 dBi, the highest gain can reach 7.8 dBi, the suppression level from the in-band highest gain to the radiation zero point of the upper stop band is larger than 40 dBi, and the suppression level from the in-band highest gain to the radiation zero point of the lower stop band is larger than 50.0 dBi.

An assembly includes a bar having a sleeve assembly connected to an end portion. The end portion has a first outer diameter, a shoulder section having a smaller diameter than the first outer diameter, a neck section having a smaller outer diameter than the shoulder section, and a head section having a larger outer diameter than the neck section, such that the neck section forms a recessed slot. The sleeve assembly includes a sleeve having a connection assembly for connecting the sleeve to the end portion, which includes a split ring having semi-annular pieces received within the recessed slot and around the neck section, a proximal washer positioned axially inward from the split ring, around the shoulder section, a distal washer positioned axially outward from the split ring, around the head section, and an annular member extending circumferentially around the split ring to retain the semi-annular pieces within the slot.

A cell phone is attached to a pole not normally used to take photos so that it can be used as a selfie stick. The phone holder is attached to a ski or hiking pole with a pivot and split ring clamp. The phone holder nestles around the pole when skiing or hiking so as not to interfere with that activity. The phone holder is rotated into an open position to attach a phone allowing its use as a selfie stick.

Methods and systems are described for split ring resonators. The split ring resonator can work as a filter that blocks 0.6GHz to 1GHz and thus acts as a tuning element and reduces coupling between columns. Certain features, such as trace elements, can reduce the Radar cross section at mid band frequencies (1.4GHz-2.6GHz) thereby unaffecting the mid bands radiators. Embodiments can also boost return loss, which is very uncommon on several other tuning pieces in the prior art.

The invention relates to a planar metal metasurface lens with high focusing efficiency, and relates to the field of microwave lenses, the planar metal metasurface lens comprises a dielectric layer, two metal layers and split rings, the two metal layers cover the two end faces of the dielectric layer, a plurality of split rings are distributed on the metal layers at intervals, and the split rings are two groups of concentric segmented circular rings which are distributed inside and outside and are provided with symmetrical double openings; and the opening part of the inner ring deflects by an angle greater than 0 degree along the circle center, so that the segmented circular rings in the opening ring are asymmetrically distributed, and the focusing efficiency greater than 60% and the amplification factor of 16 times are realized. And the advantages of high focusing rate and high magnification are realized.

A disclosed construction structure unit may include at least one split-ring resonator, which may be embedded within a material. The split ring resonator may be formed from a three-dimensional (3D) monolithic carbonaceous growth and may detect an electromagnetic ping emitted from a user device. The split ring resonator may generate an electromagnetic return signal in response to the electromagnetic ping. The electromagnetic return signal may indicate a state of the material in a position proximate to a respective split ring resonator. In some aspects, the split-ring resonator may resonate at a first frequency in response to the electromagnetic ping when the material is in a first state, and may resonate at a second frequency in response to the electromagnetic ping when the material is in a second state. A resonant frequency of the 3D monolithic carbonaceous growth may be based on physical characteristics of the material.

The invention relates to the technical field of power cable deicing, in particular to a power cable anti-icing device which comprises a mounting frame, a driving wheel and an auxiliary wheel are longitudinally, symmetrically and rotationally mounted on one side of the mounting frame, a limiting groove is formed in one side of the mounting frame in an embedded mode, and one end of the auxiliary wheel is slidably mounted in the limiting groove through a sliding block; a spring compression rod is installed between the sliding block at one end of the auxiliary wheel and the inner wall of the top end of the limiting groove. According to the anti-icing device for the power cable, when the anti-icing device encounters an ice layer, the cutters apply pressure to the ice layer in a multi-direction surrounding manner through the mounting and matching of a plurality of cutters arranged in a surrounding manner, a split ring, a limiting plate, a limiting rod and an abutting spring, and the cutters are driven to cut joints on the surface of the ice layer in cooperation with the operation of a driving wheel; the outer portion of an ice layer on the surface of the power cable is cut into a plurality of gaps, the ice layer wrapping the outer portion of the power cable can be knocked off more easily and comprehensively when the knocking blocks conduct knocking in the later period, and the overall deicing effect is better.

The invention relates to the technical field of reaction kettles, and particularly discloses an anti-caking mechanism of a reaction kettle, which comprises a kettle body, and a placing assembly, a driving assembly and a feeding assembly are arranged in the kettle body; the placing assembly comprises an annular frame, a placing ring and a first elastic piece, the annular frame is of a hollow structure, an opening is formed in the position close to the upper portion of the annular frame, a plurality of through holes are formed in the annular frame, the placing ring is assembled in the annular frame in an up-down sliding mode, and the first elastic piece is located in the annular frame and connected with the placing ring; the driving assembly is connected with the annular frame to drive the annular frame to rotate and move up and down in the kettle body, the feeding assembly is arranged above the annular frame, and a push rod matched with the feeding assembly to control the feeding assembly to be closed is arranged on the placing ring; the aluminum blocks are arranged up and down and filled in the annular frame; the anti-caking mechanism of the reaction kettle has the effects of reducing the phenomenon of caking of aluminum blocks during synthesis and improving the synthesis efficiency of aluminum alkoxide.

The invention belongs to the technical field of electromagnetic wave functional materials, and particularly relates to a nested split ring wave-absorbing metamaterial and a preparation method thereof. The wave-absorbing metamaterial sequentially comprises an FSS metal structure layer, a dielectric layer and a metal matrix layer from top to bottom in the thickness direction, the FSS metal structure layer is formed by distributing structure units in a periodic array mode, each structure unit is composed of a double-opening outer ring shaped like a Chinese character'hui 'and a double-opening inner ring, the double-opening outer ring is a split square, and the double-opening inner ring is a hollow square. The structural units are symmetrically arranged about the diagonal line of the dielectric layer. The FSS metal structure layer designed by the invention has anisotropy, so that the polarization direction of an incident wave can be rotated by 90 degrees in a reflection mode. By means of the design, the two functions of electromagnetic wave absorption and polarization conversion are achieved at the same time, and meanwhile the effect of multiband wave absorption is achieved. Within the frequency band of 4 GHz to 18 GHz, the maximum wave-absorbing strength of the nested wave-absorbing metamaterial is as high as-30 dB, and the effective wave-absorbing bandwidth can reach 7.5 GHz.

The invention provides a high-speed cable testing device applied to the field of testing devices. The high-speed cable testing device comprises a rack, and a traction mechanism and a clamping mechanism are arranged on the rack; a diameter detection mechanism is arranged on the rack, the diameter detection mechanism comprises a C-shaped split ring on a third support, clamping plates and a displacement sensor are arranged on the C-shaped split ring, and target plates matched with the displacement sensor are fixed to the sides, away from each other, of the two sets of clamping plates; the opposite sides of the two sets of clamping plates are each provided with a detection port and a telescopic cutting board. The third support is provided with a gear set used for driving the C-shaped split ring to rotate. According to the invention, the diameter change of the cable in the stretching process can be measured; meanwhile, due to the rotation function of the C-shaped opening ring and the arrangement of the telescopic cutting board, the diameter of the cable can be detected in an all-around mode, internal structures such as an insulating layer of the cable can be detected, the testing requirements of high-speed cables of different specifications can be met, and applicability and universality are achieved.

A barbell includes a bar having opposed end portions, each having an annular slot extending around the end portion, and a pair of sleeve assemblies connected to the end portions. Each sleeve assembly includes a sleeve having an axial bore receiving one of the end portions of the bar and a connection assembly including a split ring having two semi-annular pieces received within the slot, a proximal washer positioned axially inward from the split ring and engaging an inward side of the split ring, a distal washer positioned outward from the split ring, the distal washer engaging an outward side of the split ring, an annular member around the split ring, radially retaining the semi-annular pieces within the slot, and a retaining member engaging the distal washer and the bore to retain the connection assembly in connection with the bar and the sleeve.

The invention discloses a non-magnetic passive space nonreciprocal antenna housing based on an artificial electromagnetic metamaterial, and relates to the technical field of stealth materials, the non-magnetic passive space nonreciprocal antenna housing comprises antenna housing units which are periodically spliced in a plane, and each antenna housing unit comprises two dielectric substrates which are vertically crossed with each other; artificial microstructure units are arranged on the upper surface and the lower surface of the dielectric substrate; wherein the artificial microstructure unit arranged on the upper surface of the dielectric substrate comprises a double-opening SRR ring, the artificial microstructure unit arranged on the lower surface of the dielectric substrate comprises an asymmetric square opening ring, and the centers of the double-opening SRR ring and the asymmetric square opening ring are asymmetric. The technical problems that in the prior art, a non-reciprocal super-electromagnetic surface needs external magnetic bias or an external power source, preparation is complex, and integration is difficult are solved.

A piston ring seal arrangement of a gas turbine engine includes a piston ring having a circumferentially split ring configuration having a first axially-facing side and a second axially-facing side opposite the first axially facing side. The piston ring includes a first circumferential end circumferentially overlapping a second circumferential end. The piston ring is installed into a groove in a mating component. The first circumferential end and the second circumferential end define a plurality of edges on the first axially-facing side and the second axially-facing side. The first axially-facing side includes fewer edges than the second axially-facing side, and an operating pressure acting on the piston ring is greater at the second axially-facing side than at the first axially-facing side.

The invention provides a split type anastomosis locking assembly which comprises a pair of anastomosis rings and a locking device, each anastomosis ring is formed by splicing a pair of semi-ring bodies, the locking device is composed of a pair of locking pieces which are detachably connected through lock catches, each locking piece is provided with a partial ring body and a lock catch, and the lock catches are located above and below the partial ring body respectively. The lock catches of the pair of lock pieces are arranged to be a male buckle and a female buckle which are matched with each other, the male buckle is provided with a finger extending towards the other lock piece, at least one side of the finger is provided with a first ratchet portion, the female buckle is provided with a groove extending towards the other lock piece, the side, corresponding to the first ratchet portion of the finger, in the groove is provided with a second ratchet portion, and the finger is in a shape matched with the groove. Therefore, the fingers can extend into the grooves in the direction towards the opposite side locking piece and are mutually locked through the first ratchet part and the second ratchet part. According to the locking device, it is guaranteed that the radial locking strength of part of the ring bodies to the anastomosis ring is large enough, locking force distribution is uniform enough, and the locking device can be suitable for the locking scene of the split type anastomosis ring.

The utility model relates to an anti-loose joint, in particular to a primary and secondary nut compression type anti-loose joint. A primary and secondary nut pressing type anti-loosening connector comprises a tubular connector body with two through ends, an outer limiting ring is circumferentially arranged in the middle of the outer wall of the connector body, a threaded connecting hole is formed in the connector body in a through mode, and an inner limiting ring is circumferentially arranged in the middle of the threaded connecting hole. The two ends of the inner wall of the connector body are each provided with a notch in the circumferential direction, the two ends of the threaded connecting hole are symmetrically and sequentially provided with a sealing ring, a gasket and an opening ring from inside to outside along the inner limiting ring, and the two sealing rings are embedded into the corresponding notches respectively. The utility model aims to provide a primary and secondary nut compression type anti-loose joint which is simple in structure, convenient to install and good in anti-loose effect.

A protective pad assembly for removably positioning on an arm or a leg of a user of the protective pad assembly for protecting an elbow or a knee of the user. The protective pad assembly comprises an outer protective unit including a protective cushion pad configured to protect the elbow or the knee of the user from impact, and a self-retaining device mounted to the outer protective unit for retaining the outer protective unit on the arm or leg of the user. The self-retaining device includes a resilient retaining split-ring clamp having two opposite free ends spaced from one another. The free ends of the resilient retaining split-ring clamp are circumferentially expandable or contractable relative to one another for retaining the protective pad on an arm or a leg of the user of the protective pad assembly over one of the elbow and the knee thereof.

The invention provides a high-temperature-resistant electric connector and a preparation method thereof, and relates to the technical field of electric connectors. The high-temperature-resistant electric connector comprises a contact body, an insulator, a shell and a split ring structure, the split ring structure is arranged between the insulator and the shell, the split ring structure comprises an annular side wall and a base connected to one axial end of the annular side wall, the base and the annular side wall define a cavity used for containing the insulator, a notch is formed in the annular side wall, and the insulator is arranged in the cavity. The notch extends in the axial direction of the annular side wall, and one end of the notch communicates with the opening of the cavity. The split ring structure is additionally arranged between the insulator and the shell, sealing connection between the insulator, the contact body and the split ring structure is achieved through brazing, internal stress concentration during service of the insulator and the shell is remarkably reduced, and the sealing reliability between the insulator and the shell in the electric connector at the high temperature is improved; and the sealing performance of the product can meet the actual use requirement.

The invention provides a magnetic resonance self-decoupling coil based on a double-split-ring reverse coupling mechanism, which comprises a dielectric substrate, an external annular metal wire and an internal annular metal wire, the external annular metal wire and the internal annular metal wire are fixed on the dielectric substrate and sleeved together, one end of the external annular metal wire is provided with an opening, and the opening is connected with an outer ring tuning capacitor. Two sides of the outer ring tuning capacitor are respectively provided with a matching metal wire, each matching metal wire is provided with an opening, the opening is connected with a matching capacitor, and the tail ends of the two matching metal wires are connected with an excitation port; the inner annular metal wire 3 is provided with an opening on the opposite side of the opening end of the outer annular metal wire, and the opening is connected with an inner ring tuning capacitor. According to the invention, mutual inductance between magnetic resonance self-decoupling coil units can be effectively reduced, and coupling between multi-channel coil units is reduced.

A portable vegetation bag soil supporting device comprises a base, at least three supporting rods and an opening ring, and the base supports the opening ring through the supporting rods; one end of the supporting rod is hinged to the split ring, and a butt joint structure is arranged between the other end of the supporting rod and the base. The opening ring is used for opening a bag opening; an anti-falling structure is further fixedly arranged on the split ring; by arranging the butt joint structure between the supporting rod and the base and hinging the supporting rod to the split ring, the device is easy to install during use, easy to store after use, small in occupied space and convenient for workers to operate and carry. Meanwhile, an anti-falling structure is arranged, so that the bag opening is prevented from falling off from the opening ring during soil loading, and the use is more stable.

The invention provides an expansion capacity verification system of a borehole dilatometer. Comprising a first hydraulic pump, an oil outlet pipe pressure gauge, an oil return pipe pressure gauge, a displacement sensor, a hydraulic sensor used for detecting the hydraulic pressure of an oil outlet pipeline, a calibration liquid containing cavity shell, a water drainage pipe used for draining measurement water, a hydraulic sensor used for measuring the displacement variation of a hydraulic push rod and a signal input device. The front section part of the metal structure shell of the borehole dilatometer is embedded into the calibration liquid cavity shell from the opening of the calibration liquid cavity shell; a second enamel disc is annularly arranged on an opening of the calibration liquid containing cavity shell, a first enamel disc is arranged on the outer wall of the rear section part of the metal structure shell of the borehole dilatometer in a sleeving manner, and a measurement water body sealing cavity is formed between the calibration liquid containing cavity shell and the front section part through sealing installation of the two enamel discs; the invention provides a verification method using the verification system. According to the invention, the calibration accuracy of the expansion amount of the borehole dilatometer is improved, and detection, installation and debugging are facilitated.

The present invention relates to a metasurface unit structure for electromagnetic wave control, which belongs to the field of metasurface electromagnetic control technology, and solves the problems of narrow working frequency band, low efficiency and complex control method of existing metasurface unit structure. The metasurface unit structure includes a first conductor layer, a first dielectric layer, a second conductor layer, a second dielectric layer and a third conductor layer arranged in sequence along the incident direction of the electromagnetic wave; the first conductor layer, the second conductor layer and the third conductor layer all include complementary double open ring resonators, and the complementary double open ring resonators include two concentric semi-rings penetrating the conductor layer, and the two concentric semi-rings constitute an open circular ring, and the connection line of the two openings of the open circular ring passes through the center of the circle; the connection line of the two openings of the first conductor layer and the connection line of the two openings of the third conductor layer are perpendicular to each other. The metasurface unit structure can realize the control of the amplitude and phase of the transmitted wave without changing the structure, and has a wide working frequency band and high transmittance.

The invention relates to the technical field of tunnel engineering, in particular to a tunnel portal ring frame structure for occluded pipe jacking construction and an occluded pipe jacking construction method.The tunnel portal ring frame structure comprises a pre-buried ring frame and a post-mounted ring frame detachably connected with the pre-buried ring frame; the pre-embedded ring frame comprises a first pre-embedded ring frame and a second pre-embedded ring frame, the first pre-embedded ring frame and the second pre-embedded ring frame are both of open ring structures, and one opening of the first pre-embedded ring frame is in butt joint with one opening of the second pre-embedded ring frame; the post-installed ring frame comprises a first post-installed ring frame and a second post-installed ring frame, wherein the first post-installed ring frame is used for being matched with the first pre-buried ring frame to form a closed ring frame so as to conduct pre-construction pipe jacking construction, and the second post-installed ring frame is used for being matched with the second pre-buried ring frame to form a closed ring frame so as to conduct post-construction pipe jacking construction. When the portal ring frame structure is used for occluded pipe jacking construction, a corresponding closed ring frame can be formed during construction of each jacking pipe, the requirement for pressure conversion of an excavation tunnel face of the jacking pipe, especially a muddy water jacking pipe, is met, and the problem that an existing embedded ring frame cannot be closed to form a ring during occluded pipe jacking construction is effectively solved.

A cable support includes an open annular body and two jaws secured to the open annular body and extending therefrom, arranged with one facing the other to form a clamp, the open annular body having an aperture. The aperture of the annular body is configured to allow insertion of at least one cable into the annular body. The terminal parts of the open annular body bordering the aperture each have a loop configured for passage of a self-locking clamping collar around the open annular body. The clamp-forming jaws each include at least one through aperture configured for the passage of a fixing structure that can be locked in position. A fixing assembly includes a cable support and an intermediate fixing support of the cable support. It is advantageously possible to carry out a fast and reliable installation of cables, notably in cramped spaces such as on board an aircraft.

The present invention provides a main bearing for a CT machine, belonging to the technical field of bearing manufacturing. The main bearing for a CT machine includes an inner ring, an outer ring, and two rows of balls each equipped with a cage. One of the inner ring and the outer ring is provided with a raceway in contact with the two rows of balls, and the other includes a first split ring and a second split ring. The first split ring is provided with a boss for temporarily supporting the first row of balls when installing the first row of balls. Gaskets are respectively fixed on the two split rings through retaining rings. Both retaining rings are integral annular rings and are provided with raceways in contact with the balls. Both split rings have an inner diameter or an outer diameter adapted to the corresponding retaining ring for the corresponding retaining ring to be directly installed on the split ring along the axial direction. A support ring for temporarily supporting the second row of balls when installing the second row of balls is clamped between the two split rings. Compared with the existing steel wire with a notch, the integral annular ring has higher structural strength, eliminating the problem of abnormal noise of the bearing. At the same time, the use of the support ring ensures the smooth assembly of the bearing.

The invention discloses a remote plasma reaction chamber and a remote plasma source system. The remote plasma reaction chamber comprises a first flange, a cavity structure and a second flange, the cavity structure is located on one side of the first flange and comprises a three-dimensional metal split ring, a three-dimensional metal closed ring and a plurality of insulating supporting columns. Wherein the three-dimensional metal split ring comprises an opening, and the three-dimensional metal split ring is located on the inner wall side of the three-dimensional metal closed ring; the plurality of insulating support columns are positioned between the three-dimensional metal split ring and the three-dimensional metal closed ring, and are used for supporting the three-dimensional metal split ring; the three-dimensional metal opening ring is reused as a first electrode; the three-dimensional metal closed loop is reused as a second electrode; the second flange is located on the side, away from the first flange, of the cavity structure. The remote plasma reaction chamber and the plasma source system provided by the invention are simple in structure and not easy to crack, and can improve the problem that the chamber structure is easy to crack.

The invention relates to the technical field of terahertz metamaterial biosensors, in particular to a light and dark mode coupled terahertz all-dielectric biosensor and a preparation method thereof. The all-dielectric metamaterial biosensor is obtained through anodic bonding, photoetching patterning, etching and specific antibody modification, the sensor comprises a dielectric layer and a substrate layer, the dielectric layer is an array formed by alternating split ring structures and rod-shaped structures of all-dielectric metamaterials, openings are symmetrically formed in the two ends of each split ring structure, and the rod-shaped structures of all-dielectric metamaterials are arranged on the substrate layer. The distances between the rod-shaped structure and the split ring structures on the left side and the right side are u and v respectively, and v-u is larger than or equal to 1 micrometer and smaller than or equal to 5 micrometers. In the dielectric layer of the sensor, the rod-shaped structure is used as a bright mode, the split ring structure is used as a dark mode, and the two arrays interact with each other, so that light and dark mode coupling is realized, a harmonic peak is split, a Q factor and sensitivity are increased, and the sensor has the effects of high sensitivity and low detection limit on low-concentration biological sample detection in a terahertz wave band; and the method is stable and reliable.

The present invention discloses a low-profile dual-polarized antenna and an electronic device. The low-profile dual-polarized antenna comprises a first and a second metal layer arranged relatively to each other and an insulating dielectric layer arranged between the first and the second metal layers; the first metal layer comprises a coupling unit and a plurality of parasitic plates arranged around the coupling unit, and there is no contact between the plurality of parasitic plates, and there is no contact between the parasitic plates and the coupling unit; a connecting structure and a feeding unit are also arranged in the insulating dielectric layer, and the second metal layer is electrically connected to the parasitic plates and their corresponding connecting structures to form an open ring-shaped resonance unit; the coupling unit can resonate with the resonance unit; and the feeding unit is used to feed the coupling unit. The low-profile dual-polarized antenna provided by the present invention enables the dual-polarized antenna to obtain a larger bandwidth on the basis of a low profile, innovatively uses the floor of the patch antenna as part of the radiator, lengthens the current path, and further reduces the cross-sectional size of the antenna, which is conducive to the miniaturization of electronic equipment.

The invention relates to an electric control terahertz double-frequency phase modulator which comprises a sapphire substrate and a metasurface structure resonance array located on the surface of the sapphire substrate. Each resonance unit comprises a T-shaped metal resonator, an inverted T-shaped metal resonator and a square split ring resonator. The middle electric control phase change patch is embedded in a gap between the T-shaped resonator and the inverted T-shaped metal resonator, and the right electric control phase change patch is embedded in an opening of the split ring resonator. The two sides of the metasurface structure resonance array are each fixedly provided with an electrode which is connected with the positive electrode and the negative electrode of the direct-current power source. The phase modulator provided by the invention can realize dual-band, large-bandwidth and more than 100-degree phase modulation through power-on, and the adjustable maximum phase exceeds 140 degrees. The terahertz dual-frequency phase modulator has a wide application prospect in the fields of terahertz phased array radar, terahertz communication, terahertz imaging and the like.

The present invention relates to a design method for a split-ring type line, which includes: obtaining an initial flow path WON of the engine fan booster stage through S2 flow-through design; selecting a split-ring type line design area BOC section in the initial flow path WON; establishing a coordinate system OXY with the split point 0 of the split-ring type line design area BOC section as the origin; obtaining according to the coordinate system OXY: the coordinates of point O (0, 0), the coordinates of point B, the slope of point B, the coordinates of point C, the slope of point C; establishing an elliptic equation for the upper part OB section of the split ring in the coordinate system OXY, and solving to obtain the type line of the OB section; establishing an elliptic equation for the lower part OC section of the split ring in the coordinate system OXY, and solving to obtain the type line of the OC section; combining the type line of the upper part OB section of the split ring and the type line of the lower part OC section of the split ring to form a complete split-ring type line. The present invention can optimize the split-ring type line.