Showing papers on "Frustum published in 2015"

System and method of reducing transmission bandwidth required for visibility-event streaming of interactive and non-interactive content

Abstract: In an exemplary embodiment, a computer-implemented method determines a set of mesh polygons or fragments of the mesh polygons visible from a navigation cell. The method includes determining a composite view frustum containing predetermined view frusta and determining mesh polygons contained in the composite view frustum. The method includes determining at least one supporting polygon between the navigation cell and the contained mesh polygons. The method further includes constructing at least one wedge from the at least one supporting polygon, the at least one wedge extending away from the navigation cell beyond at least the contained mesh polygons. The method includes determining one or more intersections of the at least one wedge with the contained mesh polygons. The method also includes determining the set of the contained mesh polygons or fragments of the contained mesh polygons visible from the navigation cell using the determined one or more intersections.

Aircraft having an aft engine

Abstract: An aircraft is provided including a fuselage and an aft engine. The fuselage defines a top side, a bottom side, and a frustum located proximate an aft end of the aircraft. The frustum defines a top reference line extending along the frustum at a top side of the fuselage, and a bottom reference line extending along the frustum at a bottom side of the fuselage. The top and bottom reference lines meet at a reference point aft of the frustum. The fuselage further defines a recessed portion located aft of the frustum and indented inwardly from the bottom reference line. The aft engine includes a nacelle extending adjacent to the recessed portion of the fuselage such that the aft engine may be included with the aircraft without interfering with, e.g., a takeoff angle of the aircraft.

Flying Frustum: A Spatial Interface for Enhancing Human-UAV Awareness

Abstract: We present Flying Frustum, a 3D spatial interface that enables control of semi-autonomous UAVs (Unmanned Aerial Vehicles) using pen interaction on a physical model of the terrain, and that spatially situates the information streaming from the UAVs onto the physical model. Our interface is based on a 3D printout of the terrain, which allows the operator to enter goals and paths to the UAV by drawing them directly on the physical model. In turn, the UAV's streaming reconnaissance information is superimposed on the 3D printout as a view frustum, which is situated according to the UAV's position and orientation on the actual terrain. We argue that Flying Frustum's 3D spatially situated interaction can potentially help improve human-UAV awareness and enhance the overall situational awareness. We motivate our design approach for Flying Frustum, discuss previous related work in CSCW and HRI, present our preliminary prototype using both handheld and headset augmented reality interfaces, reflect on Flying Frustum's strengths and weaknesses, and discuss our plans for future evaluation and prototype improvements.

Pressure-adjustable heating cooker

Abstract: The invention provides a pressure-adjustable heating cooker. The pressure-adjustable heating cooker comprises a shell, an inner pot disposed in the shell, an upper cover, a first pressure adjusting valve, a spherical object, a first driving component, a second pressure adjusting valve, a sealing ring and a second driving component. The upper cover is rotatably clamped on the shell, a cooking spaceis formed between the upper cover and the inner pot, a steam space is formed inside the upper cover, a first vent hole is formed in the upper cover and is communicated with the cooking space and thesteam space, the first pressure adjusting valve comprises a limiting arc positioned around the first vent hole, the spherical object is disposed on the limiting arc, and the first driving component isused for driving the spherical object to move in a space limited by the limiting arc to open or close the first vent hole, so that overpressure in the cooking space can be avoided. A second vent holeis communicated with the steam space, the second pressure adjusting valve comprises a ventilation frustum and is positioned above the second second vent hole, the sealing ring is mounted correspondingly to the ventilation frustum, and the second driving component is used for driving the sealing ring to move relatively to the ventilation frustum to open or close the second vent hole, so that pressure in the cooking space is kept at a set value during cooking.

Forming forces in incremental forming of a geometry with corner feature: investigation into the effect of forming parameters using response surface approach

Abstract: Single-point incremental forming (SPIF) is an emerging sheet forming process. The force-parameter correlation is yet not well clear in this process, specifically for geometries with corners. In the present study, a new level of understanding on the parameter-force relationship is presented. A simple shape with corners (i.e., frustum of pyramid containing corners and oblique wall) is opted as the test geometry. Following the response surface method, a design of experiments (DoE) comprising of 47 runs obtained by varying five forming parameters namely sheet thickness, tool diameter, wall angle, step size, and flow stress is performed. The analysis of the results reveals that the parameter-force relation in SPIF is complex and interactive, explaining that the effect of variation in a parameter on the force magnitude is closely associated with the value and the type of the other parameters employed for forming. From the analysis of the forces involved in forming the pyramid, it is found that the corner requires more force than does the wall. Further, the normal force (i.e., force along normal to sheet plane) is greater than the in-plane force. The use of very small tools, especially low d/t o where d is the tool diameter and t o is the sheet thickness, is observed to cause fabrication defects leading to substantial rise in the magnitude of forming force thus endangering the machine tool. Finally, a set of force models is proposed using which one can predict a set of forming parameters simultaneously minimizing the force and preventing the fabrication problems.

Optic fiber surface plasmon polariton excitation focusing device and manufacturing method thereof

Abstract: The invention belongs to the nanophotonics field, in particular to an optical fiber radially polarized beam SPP excitation focusing device and a manufacturing method thereof. An optical fiber surface plasmon polariton excitation focusing device is composed of a light source 1, a single-core optical fiber 2, an annular-core optical fiber 3, a coupling taper zone 4 formed through welding one ends of the single-core optical fiber 2 and annular-core optical fiber 3 and tapering at the welding spots, a cone frustum structure 5 formed through processing the other end of the annular-core optical fiber 3, nanometer gold particles 6 annularly arrayed at the head face of the cone frustum structure of the annular-core optical fiber 3, and a gold film 7 plated at the head face of the cone frustum. The optical fiber surface plasmon polariton excitation focusing device uses the radially polarized beam to irradiate the nanometer gold particles annularly arrayed on the gold film of the head face of the optical fiber, the SPP excitation light of each gold particle is TM film, SPP constructive interference is formed at the structure center, single acute focusing light spot is obtained, and the efficiency is much higher than that of linear polarization light.

Effect of Tool Shape on Surface Finish of Components Formed Through Incremental Sheet Forming Process

Abstract: This work explores the effect of tool geometry on surface finish in incremental sheet forming (ISF) process. In the present work, two different tool geometries i.e. hemispherical shaped tool and ellipsoidal shaped tool are considered. Area at tool-sheet contact and scallop height were calculated for both the tool geometries. To assess the effect of tool geometry on the surface finish of the formed components, both analytical and experimental approaches have been used. A test geometry having the shape of frustum of pyramid was considered for the proposed investigation and four surface roughness parameters i.e. arithmetic mean surface roughness (Ra), root mean square surface roughness (Rq), maximum peak-to-valley height (Rt) and average peak-to-valley height (Rz) have been selected as response parameters. Based on the analytical model and experimental investigations, both qualitative and quantitative comparisons had been made among the effects of hemispherical and ellipsoidal tool geometries on surface finish. The investigation deduces that better surface finish of the formed component can be achieved by using ellipsoidal shaped tool rather than the hemispherical shaped tool.Copyright © 2015 by ASME

Using History of Mathematics to Teach Volume Formula of Frustum Pyramids: Dissection Method.

Abstract: Within recent years, history of mathematics (HoM) has become an increasingly popular topic. Studies have shown that student reactions to it depend on the ways they use history of mathematics. The present action research study aimed to make students deduce volume rules of frustum pyramids using the dissection method. Participants were 24 grade eight students from Trabzon. Observations, informal interviews and feedback forms were used as data collection tools. Worksheets were distributed to students and the research was conducted in 3 class hours. Student views on the activities were obtained through a written feedback form consisting of 4 questions. During the study, most students could assemble the parts forming frustum pyramids and find out volume rules of frustum square pyramids and frustum rectangular pyramids calculating the volumes of the geometric shapes obtained through that assembly. Several students had difficulties in recognizing geometric shapes as well as completing the calculations. The findings revealed that, prior to the study, most students were not able to complete similar activities and the mathematics course was taught in a teacher-centered way. Students found the activities interesting as well as instructing.

Electromagnetic clamping claw centering device and using method thereof

Abstract: The invention discloses an electromagnetic clamping claw centering device and a using method thereof. The centering device comprises an electromagnet, a permanent magnet, a sliding frustum cone, chuck claws, a chuck base, a limiting body, return springs and the like. The electromagnet is fixed to one side of the chuck base. The sliding frustum cone is installed on the inner wall of the chuck base. The permanent magnet is connected with the sliding frustum cone. The three chuck claws uniformly distributed in the circumferential direction are arranged on the chuck base. The limiting body is arranged on the portion, close to the cone head side of the sliding frustum cone, of the inner wall of the chuck base and used for limiting the sliding frustum cone. The return springs are arranged at the tail ends of the chuck claws. The electromagnet on the centering device generates a magnetic field in the opposite direction through currents in the opposite direction, thrust or suction is generated under the effect of the permanent magnet, and acts on the sliding frustum cone, under the matching effect of the return springs, the chuck claws can stretch out and return, and therefore expansion and shrinkage motion of the centering device is finished. The centering device is simple in structure, convenient to control, high in automation degree and capable of achieving fast and automatic centering, and improves efficiency.

Punching machine for aluminium plate

Abstract: The invention discloses machining shaping mould equipment, and particularly relates to a punching machine for an aluminium plate. The punching machine for the aluminium plate comprises an upper mould frame, an upper mould, a lower mould frame and a lower mould, wherein the lower mould comprises a frustum, a sliding frame and sliding blocks uniformly distributed on the periphery of the frustum in the circumferential direction; the frustum and the sliding frame are fixed on the lower mould frame; the frustum comprises a small upper end and a large lower end; an inclined sliding groove is formed in the sliding frame; the inclined sliding groove and an adjacent inclined surface or conical surface of the frustum face the same direction; the sliding blocks are arranged between the sliding frame and the frustum; the sliding blocks are propped against the inclined surface or the conical surface of the frustum; the sliding blocks are connected with the interior of the inclined sliding groove; the upper end face of the frustum and the upper parts of the sliding blocks together form a profile matched with the inner surface of a finished good in shape and provided with an inner turned edge. According to the punching machine for the aluminium plate, disclosed by the invention, the defects of low production efficiency and high manufacture cost in the prior art are overcome; therefore, the punching machine capable of manufacturing the aluminium plate with the inner turned edge in one step without an additional cylinder is provided.

General lens washing tool

Abstract: The utility model provides a lens washing tool, includes mutual lock dress square bottom plate and square apron together the mode interval of adopting the matrix setting on the square bottom plate sets up the multichannel and moves about freely and quickly the criss -cross lotion groove of flowing, and move about freely and quickly criss -cross lotion and flow every crossing department in groove and be equipped with the back taper platform hole that is used for placing the lens square apron face be equipped with with bottom plate frustum hole feeds through mutually, and with the frustum hole in axle center. By provide back taper platform hole on square bottom plate, the circle or the oval lens that can hold multiple different diameter rinse, move about freely and quickly criss -cross lotion flow groove and can make the washing liquid have the flow more smooth and easy, and the cleaning performance is better.

PZT and amplitude transformer integrated ultrasonic driving structure

Abstract: A PZT and amplitude transformer integrated ultrasonic driving structure is composed of a nut, a bolt, a left PZT circular ring laminate, a flange plate, a right PZT cone frustum laminate and an amplitude transformer. The amplitude transformer, the right PZT cone frustum laminate, the flange plate and the left PZT circular ring laminate are sequentially arrayed, then connected through the bolt and fixed through the nut. An original PZT circular ring laminate of a right PZT is changed into the cone frustum laminate, and the right PZT and the amplitude transformer are integrated to form the ultrasonic driving structure. On the basis that the sizes of PZTs on the two sides of the flange plate and the amplitude transformer meet node and antinode requirements of ultrasonic vibration, and the reduced sizes of the circular outline of a circular ring PTZ and the circular outline of a flange plate are converted into thicknesses of the cone frustum PTZ laminate and a flange plate laminate. Due to the integrated structure, the effect of reducing the size of the outline of an ultrasonic driving operation device can be achieved, the outer diameter of an original ultrasonic driving operation device ranges from 12 mm to 15 mm, but now the outer diameter of the ultrasonic driving operation device ranges from 8 mm to 10 mm, and then application requirements are further met.

Quadrangular frustum lamellar Bi2O3 nano-single crystal and preparation method thereof

Abstract: The invention provides a quadrangular frustum lamellar Bi2O3 nano-single crystal and a preparation method thereof The method includes: mixing a bismuth salt solution with a vanadium salt solution according to a mole ratio of 1:1, then adding a NaOH solution, carrying out stirring reaction at room temperature to release ammonia so as to obtain a precursor solution, then adding water into the precursor solution to a constant volume, finally subjecting the precursor solution to hydrothermal reaction, and at the end of the reaction, washing and drying the reaction product, thus obtaining the quadrangular frustum lamellar Bi2O3 nano-single crystal According to the invention, by controlling the adding amount of the NaOH solution, the purpose of controlling the product shape can be reached, and the pure cubic phase quadrangular frustum lamellar Bi2O3 nano-single crystal growing along (111) crystal orientation can be prepared The quadrangular frustum lamellar Bi2O3 nano-single crystal has good ionic conduction, hole conduction and photooxidation reaction potential The method has the advantages of short reaction time, few procedure, simple operation process, mild reaction condition, low cost, and environmental friendliness, etc

Self-powered oil and gas pipeline monitoring device based on fluid power generation

Abstract: The invention relates to a self-powered oil and gas pipeline monitoring device based on fluid power generation, and belongs to the field of oil and gas pipeline monitoring. A cone frustum is arranged on a pipeline, a spindle with an impeller and a magnetic ring is mounted in a stepped hole of the cone frustum, the magnetic ring is placed in a shaft sleeve mounted at the end of an inner cylinder wall, a pressure sensor and a flow sensor are embedded into a bottom plate of the cone frustum, a circuit board with a signal transmitting module is mounted on the inner side of an outer cylinder wall, a cylinder is welded at the end of the outer cylinder wall, a wedge block and a magnetic block are riveted at two ends of a piezoelectric vibrator with an arc projection, the magnetic block is arranged in a radial guide groove of the shaft sleeve, the wedge block is arranged in a dovetail groove of the cylinder and pressed at the end of the outer cylinder wall through an end cover, and the magnetic block always bears suction from the magnetic ring when the spindle rotates. The self-powered oil and gas pipeline monitoring device has the advantages that a non-contact magnet coupling method excites the pre-bend piezoelectric vibrator to stretch and deform to generate electricity, motion components are sealed in a pipeline, leakage is avoided, the running reliability of a circuit is high, a piezoelectric plate only bears pressure stress and is high in reliability, and the magnetic ring simultaneously excites a plurality of piezoelectric vibrators and is high in power generating capacity and free of noise.

Study of Capsule Geometry for Dust Sample Acquisition During Mars Atmospheric Entry

Abstract: An appropriate position of dust capturing device on the surface of aero-flyby capsule flying at a velocity of 4.4 km/s in Martian atmosphere at an altitude of 36 km is explored. The equation of motion and heat transfer equation for dust particles are solved for two different particle sizes of 0.5 μm and 0.1 μm. A thermochemical nonequilibrium flow field over the vehicle is computed by a prismatic unstructured mesh method. It is shown that putting a dust capturing device on the leeward frustum edge can give smaller aerodynamic drag as well as lower surface heat flux if compared to the case of putting the same device on the windward frustum edge. The lower heat flux exerted on the surface of dust capturing device is particularly preferable because the aerogel on the surface of the device is less damaged. However, it is found that the temperature of dust particles of 0.5 μm diameter is elevated almost to reach the phase change temperature when a dust capturing device is assumed on the leeward frustum edge due to longer flight time in high temperature shock layer. On the other hand, temperature of dust particles reaching the device on the windward frustum edge is found well below the phase change temperature. For dust particles of 0.1 μm diameter, we could not find any position to capture them before reaching phase change temperature regardless of the position of dust capturing device.

Design of modified Magnus wind rotors using computational fluid dynamics simulation and multi-response optimization

Abstract: Concerns on climate change and dwindling fossil fuel supply have renewed interest on alternative ways of harnessing renewable energy. Using rotating cylinders to generate lift from a fluid stream, a Magnus rotor can produce up to 10 times more lift compared to an airfoil. However, it is also producing more drag. Recent studies have demonstrated improvement on the aerodynamic efficiency of a Magnus rotor through the application of surface modifications such as grooves, bumps, dimples, and even changing the shape of the cylinder into a frustum. However, it is unknown which is most desirable among those modifications; moreover, if some may be combined for even better performance. This present study seeks to fill the mentioned research gap with the aid of computer simulation tool ANSYS CFX. Simulation results showed that modifying cylinder shape into a frustum generates the most lift force. However, it is also increasing the drag on the cylinder. Interestingly, a helical groove may be employed around the frustum cylinder to mitigate the increase in drag, making the two modifications a promising combination. Multiple response surface analysis using desirability function was used to investigate the sensitivity of the rotor design to the different modifications. Furthermore, a new perspective is introduced wherein the rotor may be able to withstand more drag in exchange for more lift. For lift generation purposes, bumps are not desirable. Finally, the aerodynamic performances of the modified rotors are compared against other published results by means of a drag polar plot.

Resonant radial oscillations of an inhomogeneous gas in the frustum of a cone

Abstract: The effects of nonlinearity, geometry and inhomogeneity on the resonant motion of a gas contained in the frustum of a cone are investigated. The motion is radially symmetric, and the inhomogeneity arises from a body force term. We show how to construct a variable density, containing an arbitrary parameter \({\mu}\) , that can be used to approximate a given density \({\rho(r)}\) . The approximate density allows us to solve exactly the eigenvalue equation associated with linear theory. This is the basis for continuous resonant solutions. There is a critical value of the parameter \({\mu}\) which separates when the system behaves like a hard or soft spring. When motions are shocked, they may be represented by the superposition of oppositely traveling modulated simple waves. In all cases, approximate solutions are compared with exact numerical solutions.

Coverage enhancement for deployment of multi-camera networks

Abstract: The deployment of multi-camera networks is usually accomplished by maximizing the covered area, while the coverage strength is difficult to be optimized simultaneously. We propose a coverage enhancement approach in this paper to improve the coverage strength of three-dimensional (3D) scenes, by using convex optimization approach to refine the initial deployment. The 3D scene is represented by a triangle mesh, with each triangle being a basic atomic unit. In addition, the sensing range of a single camera is modeled as a visual frustum. Frobenius distance and Euclidean distance between a triangle unit and a visual frustum, are novelly introduced to reflect the camera-to-triangle coverage strength. On this basis, the coverage enhancement is accomplished by minimizing the sum of squares of these two distances. Due to the use of the Frobenius distance and Euclidean distance, it is shown that the problem can be solved by convex optimization techniques. Comparative simulation results are presented to verify the effectiveness of the proposed approach.

High-efficiency broadband miniaturized conical spiral antenna

Abstract: The invention discloses a high-efficiency broadband miniaturized conical spiral antenna. The high-efficiency broadband miniaturized conical spiral antenna comprises a four-arm conical spiral radiator; a medium support frustum, wherein the four-arm conical spiral radiator is attached to the surface of the medium support frustum; a medium plate which is arranged at the bottom of the medium support frustum for supporting the whole antenna; a broadband plane feed which employs a self-phase-shift serial feed structure and is printed on the upper surface of the medium plate; four feed connecting pieces which connect the four-arm conical spiral radiator with the corresponding four branch ports of the plane feed; eight pads which are printed on the upper surface of the medium plate for fixing the feed connecting sheets; four impedance adjusting sheets which are disposed at the initial end of the four-arm conical spiral radiator for adjusting the input impedance of the four-arm conical spiral radiator; and a radio frequency joint connected with the plane feed. The high-efficiency broadband miniaturized conical spiral antenna can realize a miniaturized, broadband and high-efficiency design of the spiral antenna.

Fluid Pressure Activated Electrical Contact Devices and Methods

Abstract: A fluid pressure actuated device for establishing electrical contact includes a substrate defining a chamber, a flexible membrane having a first side facing a first direction away from the substrate and a second side facing into the chamber in a second direction opposite the first direction, and an electrically conducting contactor mounted on the first side of the flexible membrane. The flexible membrane extends and withdraws moving the electrically conducting contactor in the first direction and second direction respectively when fluid pressure is increased and decreased in the chamber. The flexible membrane includes at least two concentric frustum portions that narrow in opposite directions, including a central frustum portion and a second frustum portion that encircles the central frustum portion. Multiple chambers may be maintained in pressure equilibrium by at least one channel for the concurrent extension of multiple membranes and contactors.

Clamp for axial fatigue performance test

Abstract: The utility model discloses a clamp for an axial fatigue performance test. The clamp comprises an ejector rod which is connected to the end of a tested sample through a screw thread, a sleeve which sleeves the ejector rod, and a nut, wherein the upper end of the sleeve is connected onto the tested sample through a screw thread and the lower end of the sleeve is provided with a cone frustum part; and the upper end of the nut sleeves the cone frustum part and the lower end of the nut is connected with a connecting piece. The clamp for the axial fatigue performance test disclosed by the utility model can effectively clamp the tested sample undergoing the axial fatigue performance test under such complex conditions as normal or high temperature, and low or high frequency so as to prevent the tested sample from shifting or twisting and guarantee smooth implementation of the test.

Ultimate Bearing Capacity of Circular Footing on Layered Soil

Abstract: The bearing capacity equations developed in literature consider homogenous soil below the base of the footing. But in actual practice soil mass is non homogenous and anisotropic. Therefore, while deducing the expression of the bearing capacity in case of circular footing resting over layered deposits, one has to take into account for a layered profile of soil. The paper presents the theoretical equation for the bearing capacity of a circular footing resting on layered soil profile using punching shear failure mechanism following projected area approach. The punching mechanism has been adopted while at ultimate load the mechanism of punching shear failure developed in dense sand has a parabolic shape when full mobilization of shear force into failure surface is taken into consideration otherwise punching failure is the actual failure while punching in the lower layer continues to a larger extent depending upon the loading at interface. For the analysis part frustum is considered to be a linearize curve for the actual shape of failure and a bearing capacity expression is deduced adopting certain assumptions. Stresses acting on the frustum have been analyzed and after series of integration bearing capacity equations is generalized. The proposed bearing capacity equation has been derived as a function of upper and lower layer properties. Finally the parametric study is carried out. The results of the parametric study were compared with the available equations in literature for the circular footing. Further, the results were validated with the experimental results reported in literature by other investigator.

Aluminum plate punching machine

Abstract: The utility model discloses machining and shaping mold equipment, and particularly relates to an aluminum plate punching machine The aluminum plate punching machine comprises an upper mold frame, an upper mold, a lower mold frame and a lower mold The lower mold comprises a frustum, a sliding frame and sliding blocks evenly distributed on the periphery of the frustum in the circumferential direction, the frustum and the sliding frame are fixed to the lower mold frame, the upper end of the frustum is smaller than the lower end of the frustum, an inclined sliding groove is formed in the sliding frame, and the direction of the inclined sliding frame is consistent with that of the inclined face or conical face, adjacent to the inclined sliding groove, of the frustum The sliding blocks are arranged between the sliding frame and the frustum, the sliding blocks abut against the inclined face or conical face of the frustum, the sliding blocks are in sliding connection with the interior of the inclined sliding groove, and a molded surface matched with the shape of the inner surface of a finished product with an inner flange is formed by the upper end face of the frustum and the upper portions of the sliding blocks together The defects that in the prior art, protraction efficiency is low, and manufacturing cost is high are overcome, and according to the aluminum plate punching machine, the finished product with the inner flange can be manufactured with one step without an additional air cylinder

Emery wheel of improvement in structure

Abstract: The utility model relates to an emery wheel belongs to grinding tool technical field. The technical scheme of its adoption is: an emery wheel of improvement in structure, includes the emery wheel body, the emery wheel body comprises last frustum and lower frustum axial coincide, the center of emery wheel body is equipped with the through -hole, the upper surface of going up the frustum is equipped with a fixed connection correct grinding layer, the lower surface fixed connection corase grind layer of lower frustum, this internal each side of emery wheel is equipped with a break -over go up the mounting of frustum and lower frustum. The utility model has the advantages that: the utility model discloses the emery wheel, simple structure, the dough stability is good, can the person of facilitating the use to equidimension not, the work piece of da tong nature is polished, excellent in use effect, the practicality is strong.

Wide-beam circularly-polarized micro-strip antenna

Abstract: The invention relates to a wide-beam circularly-polarized micro-strip antenna which is characterized in that a metal base is of a frustum structure, a cylindrical dielectric substrate is disposed in the center of the upper board of the metal base, and the metal base and the cylindrical dielectric substrate have the same radius; and a circular floor is disposed in the center of the cylindrical dielectric substrate, a square metal patch is arranged on the cylindrical dielectric substrate, and four metal probes are disposed in the center of the square metal patch in a square structure. According to the invention, a traditional micro-strip antenna dielectric substrate is broadened on one hand, a structure in which a micro-strip antenna is installed on a raised metal frustum is adopted on the other hand, and the purpose of broadening the antenna beam is achieved from the two aspects.