Rapid radiation field calculation model of peaking capacitor-single cone antenna integrated simulator

Abstract

The invention discloses a radiation field rapid calculation model of a peaking capacitor-single cone antenna integrated simulator, which directly reduces the height size of the whole calculation space by reducing the height of a single cone under the condition of keeping the half cone angle of the single cone of the original simulator unchanged. Meanwhile, the top of the simulator is tightly attached, and a medium cover and a medium wall which are matched in shape, size and parameter are arranged on the horizontal periphery of the simulator, so that reflection of the top of the new simulator is reduced as much as possible, and a radiation field of a new calculation model is the same as that of an original calculation model; therefore, the rapid calculation of the radiation field during the optimization design of the peaking capacitor of the simulator of the type can be realized.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of vertical polarization electromagnetic pulse radiation wave simulator, and specifically to a simulator integrating peaking capacitor and monopole antenna, and relates to a radiation field calculation model for optimizing design of the simulator. BACKGROUND

[0002] The vertical polarization electromagnetic pulse (EMP) radiation wave simulator (JU Xiang-qin et al. published in the journal of Computational Physics, 2019, vol. 36, pp. 349-356, "Parallel FDTD simulation of a large vertical polarization EMP radiation wave simulator with discrete resistive loading"; Blackburn R F et al. published in the journal of IEEE Tran. on Electromagnetic Compatibility, 1978, vol. EMC-20, pp. 240-247, "On the Electromagnetic Fields from a Hybrid Type of EMP Simulator") has been widely studied because it can provide a vertical polarization electromagnetic pulse environment for electromagnetic pulse effect and reinforcement measures. In the engineering implementation of the vertical polarization EMP radiation wave simulator, the feeding part of the simulator usually adopts a one-stage or two-stage pulse compression technical scheme, and the peaking capacitor is one of the key devices for pulse compression. Considering the voltage withstand requirement of the peaking capacitor, and in order to reduce the inductance of the discharge circuit in the discharge process, and reduce the discontinuous section of the monopole antenna, the peaking capacitor is usually integrated with the monopole antenna (BAILEY V et al. published in the journal of IEEE Trans. Plasma Science, 2010, vol. 38, pp. 2555-2556, "A 6-MV pulser to drive horizontally polarized EMP simulators").

[0003] In the optimization design of the above-mentioned peak capacitor integrated with the monopole antenna, the radiation field of the simulator needs to be calculated multiple times. However, due to the size of the monopole antenna being in meters and the size of the thin film dielectric layer and the multi-layer metal electrode ring of the peak capacitor being in millimeters, the peak capacitor needs to be locally refined when calculating the radiation field of the simulator, which increases the amount of calculation and requires more computing resources and longer calculation time, thereby slowing down the optimization design of the simulator. Therefore, it is necessary to improve the calculation model of the radiation field of the peak capacitor integrated with the monopole antenna during the optimization design of the peak capacitor. However, so far there has been no related report at home and abroad.

[0004] Based on the current research on the calculation model of the peak capacitor integrated with the monopole antenna, the technical personnel in the field usually use the conventional technical means of "parallel simulation technology and increasing the number of parallel threads" to reduce the calculation time of the radiation field of the simulator. However, in fact, using parallel technology in simulation calculation cannot reduce the total amount of calculation, and the required computing resources will not be reduced. SUMMARY

[0005] The present application provides a fast calculation model of the radiation field of a peak capacitor integrated with a monopole antenna, which aims to reduce the amount of calculation of the entire radiation field when optimizing the peak capacitor of the simulator, thereby reducing the required resources or reducing the calculation time under the condition of using the same computing resources.

[0006] To achieve the above purpose, the present application provides the following technical solutions:

[0007] The fast calculation model of the radiation field of the peak capacitor integrated with the monopole antenna includes a single circular cone with the tip pointing down and a PEC pad plate located below the circular cone. A excitation source loading plane is arranged inside the circular cone, and the distance between the excitation source loading plane and the PEC pad plate is H s ; a conducting post is arranged between the tip of the circular cone and the PEC pad plate; the improvement compared with the prior art is mainly:

[0008] The height H of the circular cone in the fast calculation model is less than the height H0 of the original simulator, and H>H s, the half-cone angle of the cone is kept unchanged; the axial direction of the rotationally symmetrical axis of the cone is set as the z direction of the xyz coordinate system, and the fast calculation model of the radiation field of the simulator further comprises:

[0009] A medium cover close to the top of the cone, symmetrical about the x axis and the y axis;

[0010] A medium fence arranged horizontally around the periphery of the cone, the inner side of the medium fence being close to the outer side of the medium cover, and the bottom of the medium fence being close to the upper surface of the PEC pad, the medium cover, the PEC pad and the medium fence together forming a closed space, and the selected simulation radiation field measuring points being located in the closed space;

[0011] The parameters of the medium cover and the medium fence are determined by scanning optimization calculation to obtain an optimal solution, so that the radiation field calculated according to the fast calculation model is the same as the radiation field of the original calculation model.

[0012] Further, the medium cover comprises:

[0013] An inner medium cover in the form of a flat plate, close to the top plane of the cone, symmetrical about the x axis and the y axis; the dimension of the inner medium cover in the z direction is d zi , the dimensions in the x direction and the y direction are L x and L y respectively, the dielectric constant and the magnetic permeability are ε _zi and μ _zi respectively, the electrical conductivity and the magnetic permeability are σ _zi and σ m_zi respectively, and σ m_zi / σ _zi = μ _zi / ε _zi ;

[0014] An outer medium cover in the form of a flat plate, close to the top plane of the inner medium cover, symmetrical about the x axis and the y axis; the dimension of the outer medium cover in the z direction is d zo , the dimensions in the x direction and the y direction are the same as those of the inner medium cover, the dielectric constant and the magnetic permeability are ε _zo and μ _zo respectively, the electrical conductivity and the magnetic permeability are σ _zo and σ m_zo respectively, and σ m_zo / σ _zo = μ _zo / ε _zo ;

[0015] The medium fence comprises:

[0016] A first inner medium fence, arranged at a distance of L xAt position / 2, it is closely attached to the outer side of the inner and outer media covers in the +x direction, and is symmetrical about the y-axis; the dimension of the first inner media enclosure in the x direction is d. xi The dimensions in the y and z directions are L respectively. y and L z And let L z Satisfy L z =H+d zi +d zo The dielectric constant and permeability are ε _xi and μ _xi The electrical conductivity and magnetic permeability are σ _xi and σ m_xi And satisfy σ m_xi / σ _xi =μ _xi / ε _xi ;

[0017] The first outer dielectric enclosure is closely attached to the outer side of the first inner dielectric enclosure in the +x direction and is symmetrical about the y-axis; the dimension of the first outer dielectric enclosure in the x-direction is d. xo The dimensions in both the y and z directions are the same as those in the first inner dielectric shroud, and the dielectric constant and permeability are ε, respectively. _xo and μ _xo The electrical conductivity and magnetic permeability are σ _xo and σ m_xo And satisfy σ m_xo / σ _xo =μ _xo / ε _xo ;

[0018] The second inner medium enclosure is positioned in the -x direction at a distance L from the z-axis. x At position / 2, it is closely attached to the outer side of the inner dielectric cover and the outer dielectric cover in the -x direction, and is symmetrical about the y-axis; the dimensions of the second inner dielectric enclosure in the x, y and z directions are the same as those of the first inner dielectric enclosure, and the dielectric constant, permeability, conductivity and permeability of the second inner dielectric enclosure are the same as those of the first inner dielectric enclosure.

[0019] The second outer dielectric enclosure is closely attached to the outer side of the second inner dielectric enclosure in the -x direction and is symmetrical about the y-axis; the dimensions of the second outer dielectric enclosure in the x, y and z directions are the same as those of the first outer dielectric enclosure; the dielectric constant, permeability, conductivity and permeability of the second outer dielectric enclosure are the same as those of the first outer dielectric enclosure.

[0020] The third inner medium enclosure is positioned in the +y direction at a distance L from the z-axis. y At position / 2, it is closely attached to the outer side of the inner and outer media covers in the +y direction, and is symmetrical about the x-axis; the dimension of the third inner media enclosure in the y direction is d.yi , the size of the x direction and the z direction are L x and L z , the dielectric coefficient, the magnetic permeability coefficient, the electric conductivity and the magnetic conductivity are the same as the first inner dielectric enclosure respectively;

[0021] The third outer dielectric enclosure is close to the +y direction outer side of the third inner dielectric enclosure, and is symmetrical about the x axis; the size of the third outer dielectric enclosure in the y direction is d yo , the size of the x direction and the z direction are L x and L z , the dielectric coefficient, the magnetic permeability coefficient, the electric conductivity and the magnetic conductivity are the same as the first outer dielectric enclosure respectively;

[0022] The fourth inner dielectric enclosure is arranged at the position of L y / 2 away from the z axis in the -y direction, and is close to the -y direction outer side of the inner dielectric cover and the outer dielectric cover, and is symmetrical about the x axis; the size of the fourth inner dielectric enclosure in the y direction, the x direction and the z direction are the same as the third inner dielectric enclosure respectively, and the dielectric coefficient, the magnetic permeability coefficient, the electric conductivity and the magnetic conductivity are the same as the third inner dielectric enclosure respectively;

[0023] The fourth outer dielectric enclosure is close to the -y direction outer side of the fourth inner dielectric enclosure, and is symmetrical about the x axis; the size of the fourth outer dielectric enclosure in the y direction, the x direction and the z direction are the same as the third outer dielectric enclosure respectively; the dielectric coefficient, the magnetic permeability coefficient, the electric conductivity and the magnetic conductivity of the fourth outer dielectric enclosure are the same as the third outer dielectric enclosure respectively.

[0024] Further, the geometric size parameters and the dielectric parameters of the dielectric cover and the dielectric enclosure wall are determined by scanning optimization calculation to obtain the optimal solution, specifically: under the precondition that the radiation field measuring points of the simulator are located in the closed space, d zi , L x , L y , d zo , d xi , d xo , d yi , d yo , ε _zi , μ _zi , σ _zi , σ m_zi , ε _zo , μ _zo , σ _zo , σ m_zo , ε _xi , μ _xi , σ _xi , σ m_xi , ε _xo , μ _xo , σ _xo and σ m_xoPerform scanning optimization calculations to obtain the optimal solutions for each of the above parameters of the fast calculation model.

[0025] Optionally, the cone height H in the fast calculation model is the distance H between the excitation source loading plane and the PEC pad. s 2 to 4 times.

[0026] If the cone height H0 of the original simulator is 15m, and the height H of the excitation source loading plane is... s =2.063m; therefore, a better example of a fast calculation model is as follows:

[0027] The cone height H in the rapid calculation model is 7.2m;

[0028] d zi =60mm, L x =L y =39.92m, d zo =20mm, d xi =20mm, d xo =20mm, d yi =20mm, d yo =20mm;

[0029] Satisfying σ m_zi / σ _zi =μ _zi / ε _zi The dielectric constant ε of the inner dielectric cover under certain conditions _zi =ε0 and permeability μ _zi =μ0, ε0 and μ0 are the permittivity and permeability in vacuum, respectively, and the conductivity σ is... _zi ≈0.00007042606 S / m and permeability σ m_zi =10Ω / m, satisfying σ m_zo / σ _zo =μ _zo / ε _zo The dielectric constant ε of the outer dielectric cover under certain conditions _zo =ε0 and permeability μ _zo =μ0, conductivity σ _zo ≈0.31691727 S / m and permeability σ m_zo =45000Ω / m, satisfying σ m_xi / σ _xi =μ _xi / ε _xi The dielectric constant ε of the first, second, third, and fourth inner dielectric plates under the condition. _xi =ε0 and permeability μ _xi =μ0, conductivity σ _xi≈0.007042606 S / m and permeability σ m_xi =1000Ω / m, satisfying σ m_xo / σ _xo =μ _xo / ε _xo The dielectric constant ε of the first, second, third, and fourth outer dielectric plates under the given conditions _xo =ε0 and permeability μ _xo =μ0, conductivity σ _xo ≈0.007042606 S / m and permeability σ m_xo =1000Ω / m.

[0030] Compared with the prior art, this application has at least the following beneficial effects:

[0031] While maintaining the semi-cone angle of the single cone in the original simulator (i.e., the original computational model), the basic structure of the new computational model is obtained by reducing the height of the single cone, directly reducing the overall height of the computational space. Simultaneously, dielectric covers and dielectric walls with compatible shapes, sizes, and parameters are placed close to the top of the new simulator (the simulator with reduced single-cone height) and around its horizontal perimeter to minimize reflections from the top of the new simulator (electromagnetic waves are absorbed and not reflected when irradiated by a medium with specific relationships between dielectric constant, permeability, conductivity, and magnetic permeability). This ensures that the radiation field of the new computational model is identical to that of the original computational model. This presents a novel approach for rapidly calculating the radiation field during the peaking capacitor optimization design of an integrated peaking capacitor-single-cone antenna simulator, applicable to simulators with peaking capacitors of varying sizes and parameters. This application significantly reduces the computational load and required computational resources for radiation field calculations in such simulators, enabling rapid simulation calculations of the radiation field during peaking capacitor optimization design, and thus facilitating rapid optimization of this type of simulator. Attached Figure Description

[0032] To more intuitively illustrate the prior art and this application, exemplary drawings are provided below. It should be understood that the specific shapes and structures shown in the drawings should not generally be regarded as limiting conditions for implementing this application; for example, based on the technical concept disclosed in this application and the exemplary drawings, those skilled in the art are able to easily make conventional adjustments or further optimizations to the addition / reduction / classification, specific shapes, positional relationships, connection methods, size ratios, etc. of certain units (components).

[0033] Figure 1 This is a schematic diagram on the xOz profile of a rapid calculation model of the radiation field of an integrated simulator for a peaked capacitor and a monocone antenna provided in one embodiment of this application. In the figure, H is the height of the monocone in the new calculation model; γ is the half-cone angle of the monocone; H sd is the height of the loading plane of the excitation source; zi L represents the dimension of the inner medium cover in the z-direction. x d is the dimension of the inner medium cover in the x-direction; zo d represents the dimension of the outer medium cover in the z-direction; xi L is the dimension of the first inner medium enclosure 61a in the x direction. z Let L be the dimension of the first inner medium enclosure 61a in the z direction and satisfy L z =H+d zi +d zo ;d xo Let x be the dimension of the first outer medium enclosure 61b in the x direction.

[0034] Figure 2 This is a schematic diagram of the rapid calculation model of the radiation field of the integrated simulator of peaking capacitor and monoconical antenna provided in one embodiment of this application on the yOz cross section. In the figure, L y d is the dimension of the inner medium cover in the y direction; yi Let d be the dimension of the third inner medium enclosure 63a in the y direction. yo The dimension of the third outer medium enclosure 63b in the y direction.

[0035] Figure 3 It is the time-domain waveform loaded on the excitation source loading plane in the above embodiments of this application.

[0036] Figure 4 This is a comparison of the time-domain waveforms of the z-components of the electric field at points A (6.5,0,0)m and B (9,0,0)m obtained by the above embodiments of this application and the original calculation model; wherein, (a) corresponds to the measurement point A (6.5,0,0)m, and (b) corresponds to the measurement point B (9.5,0,0)m.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Single cone; 2. PEC pad; 3. Excitation source loading plane; 4. Conductor post;

[0039] 5. Medium cover; 5a. Inner medium cover; 5b. Outer medium cover;

[0040] 6. Media enclosure; 61a. First inner media enclosure; 61b. First outer media enclosure; 62a. Second inner media enclosure; 62b. Second outer media enclosure; 63a. Third inner media enclosure; 63b. Third outer media enclosure; 64a. Fourth inner media enclosure; 64b. Fourth outer media enclosure;

[0041] 7. Peaking capacitors. Detailed Implementation

[0042] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] In the description of this application: the terms "first," "second," "third," etc., are intended to distinguish the objects they refer to, and do not have any special meaning in terms of technical connotation (e.g., they should not be construed as an emphasis on importance or order). Expressions such as "comprising," "including," and "having" also mean "not limited to" (certain units, components, materials, steps, etc.).

[0044] Apart from the inherent orientational characteristics of this field, terms such as "upper," "lower," "left," "right," and "middle" used in this application are generally indications of general relative positional relationships for the purpose of intuitive understanding by referring to the accompanying drawings, and are not absolute limitations on the positional relationships in the actual product.

[0045] In one embodiment, the computational model of the integrated peaking capacitor-monocone antenna simulator is mainly composed of a single cone (referred to as "monocone"), an 18-layer coaxial peaking capacitor integrated with the single cone, and an infinitely large metal base plate. In the original computational model, the height of the single cone H0 = 15m, and the half-cone angle γ of the single cone γ = 32º.

[0046] like Figure 1 , Figure 2 As shown, this embodiment provides a new calculation model. The height of the single cone in the new calculation model is H = 7.2m; the semi-cone angle of the single cone is the same as that of the original calculation model; the height H of the excitation source loading plane is... s =2.063m. A dielectric cover 5, symmetrical about the x-axis and y-axis, is set close to the top of the single cone 1. A dielectric enclosure 6 is set around the horizontal perimeter of the single cone. The inner side of the dielectric enclosure 6 is close to the outer side of the dielectric cover 5, and the bottom of the dielectric enclosure 6 is close to the upper surface of the PEC pad. Together with the dielectric cover 5 and the PEC pad 2, they form a closed space, ensuring that all selected simulator radiation field measurement points are located within this closed space. The parameters of the dielectric cover and the dielectric enclosure 2 are determined by scanning optimization calculation to obtain the optimal solution, so that the radiation field calculated according to this fast calculation model is the same as the radiation field of the original calculation model. In this way, this embodiment achieves a miniaturized design with equivalent performance (the radiation field of the new calculation model is the same as the radiation field of the original calculation model) by changing the model height and introducing additional structures to minimize the reflection at the top of the new simulator. This reduces the computational load and required computational resources for radiation field calculation of this type of simulator, thereby enabling fast simulation calculation of the radiation field when optimizing the peaking capacitor design of this type of simulator, and thus achieving rapid optimization of this type of simulator.

[0047] The specific implementation steps are described below:

[0048] (1) Assume that the original calculation model of the radiation field of the integrated simulator of peaking capacitor-single cone antenna consists of a single cone 1 "integrated with peaking capacitor" and an infinitely large PEC pad 2 below the single cone, and a conductive post 4 is set between the tip of the single cone 1 and the PEC pad 2 below it.

[0049] (2) In the original calculation model, the height of the single cone is H0. In this embodiment, H0 = 15m;

[0050] (3) In the original calculation model, an excitation source loading plane 3 was set inside the single cone and above the peaking capacitor 7. The distance between the excitation source loading plane 3 and the PEC pad 2 (metal base plate) was H. s In this embodiment, H s =2.063m;

[0051] (4) In the original calculation model, the conduction delay time of the conducting post is t. d The conductivity model of the conductive column is as follows:

[0052]

[0053] In this embodiment, t is taken as... d =42ns.

[0054] (5) Based on (1)~(4), the original calculation model of the radiation field for the peaking capacitor optimization design of the integrated simulator of peaking capacitor-monocone antenna is constructed.

[0055] (6) Reduce the height of the simulator single cone in the original calculation model in (5) from H0 to H, and ensure that H>H s The semi-cone angle and the distance between the excitation source loading plane and the tip of the single cone remain unchanged, resulting in the basic structure of the new computational model. In this embodiment, the height of the single cone in the new computational model is H = 7.2m;

[0056] (7) Make the height direction of the single cone in the new calculation model z-direction and ensure that the single cone is rotationally symmetric about the z-axis. Add a dielectric cap 5 at the highest point of the single cone in the z-direction of the new calculation model (referred to as the "top"). The specific setting method of the dielectric cap 5 is as follows:

[0057] (a) Add an inner dielectric cover 5a to the top of the single cone in the new computational model; the inner dielectric cover 5a is a dielectric plate with a dimension d in the z-direction. zi The dimensions in the x and y directions are L respectively. x and L y The dielectric constant and magnetic permeability of the inner dielectric cover are ε. _zi and μ _zi The electrical conductivity and magnetic permeability are σ _zi and σ m_zi And satisfy σm_zi / σ _zi =μ _zi / ε _zi ;

[0058] (b) An outer medium cover 5b, symmetrical about the x-axis and y-axis, is added to the top of the inner medium cover 5a described in (a). The outer medium cover 5b is a medium plate with a dimension d in the z-direction. zo The dimensions in the x and y directions are the same as those of the inner dielectric cover 5a; the dielectric constant and magnetic permeability of the outer dielectric cover 5b are ε. _zo and μ _zo The electrical conductivity and magnetic permeability are σ _zo and σ m_zo And satisfy σ m_zo / σ _zo =μ _zo / ε _zo ;

[0059] (c) The inner medium cover 5a and the outer medium cover 5b, constructed according to (a) and (b) above, together form the medium cover 5 on top of the new calculation model.

[0060] (8) Set up a media enclosure 6 around the horizontal perimeter of the new calculation model. The specific setting method is as follows:

[0061] (a) At a distance L from the z-axis in the +x direction x At position / 2, adjacent to the outer sides of the inner and outer media covers in the +x direction, a first inner media enclosure 61a is provided, symmetrical about the y-axis; the first inner media enclosure 61a is a media plate, and its dimension in the x-direction is d. xi The dimensions in the y and z directions are L respectively. y and L z And let L z Satisfy L z =H+d zi +d zo The dielectric constant and permeability of the first inner dielectric plate 61a are ε0 and ε1, respectively. _xi and μ _xi The electrical conductivity and magnetic permeability are σ _xi and σ m_xi And satisfy σ m_xi / σ _xi =μ _xi / ε _xi ;

[0062] (b) At a distance L from the z-axis in the -x direction xAt position / 2, a second inner dielectric enclosure plate 62a is provided, closely attached to the outer side of the inner dielectric cover and the outer dielectric cover in the -x direction, and symmetrical about the y-axis. The second inner dielectric enclosure plate 62a is a dielectric plate, and its dimensions in the x, y and z directions are the same as those of the first inner dielectric enclosure plate 61a. The dielectric constant, permeability, conductivity and permeability of the second inner dielectric enclosure plate 62a are the same as those of the first inner dielectric enclosure plate 61a.

[0063] (c) A first outer dielectric plate 61b, symmetrical about the y-axis, is provided on the outer side of the first inner dielectric plate 61a in the +x direction; the first outer dielectric plate 61b is a dielectric plate with a dimension d in the x direction. xo The dimensions in both the y and z directions are the same as those of the first inner dielectric enclosure 61a; the dielectric constant and permeability of the first outer dielectric enclosure 61b are ε0 and ε1, respectively. _xo and μ _xo The electrical conductivity and magnetic permeability are σ _xo and σ m_xo And satisfy σ m_xo / σ _xo =μ _xo / ε _xo ;

[0064] (d) A second outer dielectric plate 62b, symmetrical about the y-axis, is provided on the outer side of the second inner dielectric plate 62a in the -x direction. The second outer dielectric plate 62b is a dielectric plate, and its dimensions in the x, y, and z directions are the same as those of the first outer dielectric plate 61b. The dielectric constant, permeability, conductivity, and permeability of the second outer dielectric plate 62b are the same as those of the first outer dielectric plate 61b.

[0065] (e) at a distance L from the z-axis in the +y direction y At position / 2, a third inner medium enclosure 63a, symmetrical about the x-axis, is provided on the outer side of the inner and outer medium covers in the +y direction; the third inner medium enclosure 63a is a medium plate with a dimension d in the y direction. yi The dimensions in the x and z directions are L, respectively. x and L z The dielectric constant, permeability, conductivity, and permeability of the third inner dielectric plate 63a are the same as those of the first inner dielectric plate 61a.

[0066] (f) At a distance L from the z-axis in the -y direction yAt position / 2, a fourth inner dielectric enclosure plate 64a, symmetrical about the x-axis, is provided close to the outer side of the inner dielectric cover and the outer dielectric cover in the -y direction. The fourth inner dielectric enclosure plate 64a is a dielectric plate, and its dimensions in the y, x, and z directions are the same as those of the third inner dielectric enclosure plate 63a. The dielectric constant, permeability, conductivity, and permeability of the fourth inner dielectric enclosure plate 64a are the same as those of the third inner dielectric enclosure plate 63a.

[0067] (g) A third outer dielectric plate 63b, symmetrical about the x-axis, is provided on the outer side of the third inner dielectric plate 63a in the +y direction; the third outer dielectric plate 63b is a dielectric plate with a dimension d in the y direction. yo The dimensions in the x and z directions are L, respectively. x and L z The dielectric constant, permeability, conductivity, and permeability of the third outer dielectric plate 63b are the same as those of the first outer dielectric plate 61b.

[0068] (h) A fourth outer dielectric plate 64b, symmetrical about the x-axis, is provided on the outer side of the fourth inner dielectric plate 64a in the -y direction. The fourth outer dielectric plate 64b is a dielectric plate, and its dimensions in the y, x and z directions are the same as those of the third outer dielectric plate 63b. The dielectric constant, permeability, conductivity and permeability of the fourth outer dielectric plate 64b are the same as those of the third outer dielectric plate 63b.

[0069] (i) The first inner medium enclosure 61a to the fourth inner medium enclosure 64a and the first outer medium enclosure 61b to the fourth outer medium enclosure 64b, constructed according to (a) to (h), together constitute the medium enclosure wall of the horizontal perimeter of the new calculation model.

[0070] (9) Based on (6)~(8), a fast calculation model of radiation field is constructed for the peaking capacitor optimization design of the integrated simulator of peaking capacitor-monocone antenna.

[0071] Under the premise of ensuring that the simulator's radiation field measurement points are located within the space enclosed by the dielectric cover and dielectric enclosure of the rapid calculation model, this embodiment specifies the dimension d of the inner dielectric cover 5a in the z-direction. zi The dimensions L of the inner medium cover 5a and the outer medium cover 5b in the x and y directions. x and L y The dimension d of the outer medium cover 5b in the z direction zo The dimensions d of the first inner medium enclosure 61a and the second inner medium enclosure 62a in the x-direction xi The first outer dielectric enclosure 61b and the dimension d of the first outer dielectric enclosure 61b in the x direction xo The dimension d of the third inner medium enclosure 63a and the fourth inner medium enclosure 64a in the y directionyi The dimensions d of the third outer dielectric enclosure 63b and the fourth outer dielectric enclosure 64b in the y direction yo , satisfying σ m_zi / σ _zi =μ _zi / ε _zi The dielectric constant ε of the inner dielectric cover 5a under the condition _zi and permeability μ _zi Conductivity σ _zi and permeability σ m_zi , satisfying σ m_zo / σ _zo =μ _zo / ε _zo The dielectric constant ε of the outer dielectric cover 5b under the condition _zo and permeability μ _zo Conductivity σ _zo and permeability σ m_zo , satisfying σ m_xi / σ _xi =μ _xi / ε _xi The dielectric constant ε of the first inner dielectric enclosure 61a to the fourth inner dielectric enclosure 64a under the condition _xi and permeability μ _xi Conductivity σ _xi and permeability σ m_xi , satisfying σ m_xo / σ _xo =μ _xo / ε _xo The dielectric constant ε of the first outer dielectric plate 61b to the fourth outer dielectric plate 64b under the condition _xo and permeability μ _xo Conductivity σ _xo and permeability σ m_xo Perform scanning optimization calculations to obtain the optimal solution of this fast calculation model.

[0072] When d zi =60mm, L x =L y =39.92m, d zo =20mm, d xi =20mm, d xo =20mm, d yi =20mm, d yo =20mm, satisfying σ m_zi / σ _zi =μ _zi / ε _zi The dielectric constant ε of the inner dielectric cover under certain conditions _zi =ε0 and permeability μ _zi=μ0 (ε0 and μ0 are the permittivity and permeability in vacuum, respectively, hereinafter the same), conductivity σ _zi ≈0.00007042606 S / m and permeability σ m_zi =10Ω / m, satisfying σ m_zo / σ _zo =μ _zo / ε _zo The dielectric constant ε of the outer dielectric cover under certain conditions _zo =ε0 and permeability μ _zo =μ0, conductivity σ _zo ≈0.31691727 S / m and permeability σ m_zo =45000Ω / m, satisfying σ m_xi / σ _xi =μ _xi / ε _xi The dielectric constant ε of the first inner dielectric enclosure 61a to the fourth inner dielectric enclosure 64a under the condition _xi =ε0 and permeability μ _xi =μ0, conductivity σ _xi ≈0.007042606 S / m and permeability σ m_xi =1000Ω / m, satisfying σ m_xo / σ _xo =μ _xo / ε _xo The dielectric constant ε of the first outer dielectric plate 61b to the fourth outer dielectric plate 64b under the condition _xo =ε0 and permeability μ _xo =μ0, conductivity σ _xo ≈0.007042606 S / m and permeability σ m_xo When the resistance is 1000Ω / m, the load is as follows: Figure 3 The time-domain waveforms on the excitation source plane are shown below. The time-domain waveforms of the peaking capacitor-monocone antenna integrated simulator at measurement points A(6.5,0,0)m and B(9.5,0,0)m are respectively shown below. Figure 4 (a) and Figure 4 As shown in (b).

[0073] For comparison, the figure shows the simulation results for the original calculation model H0=15m. From Figure 4 It can be seen that the radiation fields of simulator measuring points A and B calculated using this embodiment are in good agreement with the simulation results of the original technical model. Furthermore, compared to the original calculation model, the height of the single cone in the simulator in this embodiment is reduced to approximately half of the original model. Therefore, the overall computational load and required computational resources are reduced to half of the original, ensuring rapid optimization of this type of simulator, thus demonstrating the effectiveness of this embodiment.

[0074] In addition, since the dielectric parameters of the dielectric cover and dielectric wall in this embodiment are independent of frequency, this embodiment is applicable to the rapid calculation of the radiation field of simulators with peaking capacitors of different sizes.

[0075] The technical features of the above embodiments can be combined in any way (as long as there is no contradiction in the combination of these technical features). For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written should also be considered to be within the scope of this specification.

Claims

1. A fast calculation model of the radiation field of a peak capacitor-single cone antenna integrated simulator, comprising a single circular cone with a tip pointing downward and a PEC pad located below the circular cone, a driven source loading plane is arranged inside the circular cone, the distance between the driven source loading plane and the PEC pad is H s ; a conducting post is arranged between the tip of the circular cone and the PEC pad; characterized in that: The conical height H in the fast calculation model is less than the conical height H0 of the original simulator, and H>H0 s , the half-cone angle of the cone is kept unchanged; An axial direction of the conical rotation symmetry axis is a z direction in the xyz coordinate system, and the fast calculation model of the radiation field of the simulator further comprises: A dielectric cover close to a top of the cone, symmetric about the x axis and the y axis; A dielectric fence arranged horizontally around a periphery of the cone, an inner side of the dielectric fence close to an outer side of the dielectric cover, a bottom of the dielectric fence close to an upper surface of the PEC pad, and the dielectric cover, the PEC pad and the dielectric fence together forming a closed space, so that selected radiation field measurement points of the simulator are all located in the closed space; Parameters of the dielectric cover and the dielectric fence are determined by scanning optimization calculation to obtain an optimal solution, so that a radiation field calculated according to the fast calculation model is the same as a radiation field of an original calculation model.

2. The fast calculation model of the radiation field of the peak capacitor-single cone antenna integrated simulator according to claim 1, characterized in that: the dielectric cover comprises: The inner medium cover in flat shape is close to the plane of the conical top and is symmetrical about the x-axis and the y-axis; the dimension of the inner medium cover in the z direction is d zi , the dimensions in the x direction and the y direction are L x and L y respectively, the dielectric coefficient and the magnetic permeability coefficient are ε _zi and μ _zi respectively, the conductivity and the magnetic conductivity are σ _zi and σ m_zi respectively, and σ m_zi / σ _zi = μ _zi / ε _zi ​ The outer medium cover in flat shape is close to the top plane of the inner medium cover, and is symmetrical about the x-axis and the y-axis; the size of the outer medium cover in the z direction is d zo , the dielectric coefficient and the magnetic permeability coefficient are respectively ε _zo and μ _zo , the conductivity and the magnetic conductivity are respectively σ _zo and σ m_zo , and σ m_zo / σ _zo =μ _zo / ε _zo ​ the dielectric fence comprises: A first inner medium surrounding plate is arranged at a distance of L from the z-axis in the +x direction x The first inner medium surrounding plate is symmetric about the y-axis and is in close contact with the outer side of the inner medium cover and the outer medium cover in the +x direction at the position of x / 2. The size of the first inner medium surrounding plate in the x direction is d xi The sizes in the y direction and the z direction are L y and L z respectively, and L z satisfies L z =H+d zi +d zo The dielectric constant and the magnetic permeability are ε _xi and μ _xi The conductivity and the magnetic conductivity are σ _xi and σ m_xi , and σ m_xi / σ _xi =μ _xi / ε _xi ​ A first outer medium enclosure is symmetric about the y-axis and is adjacent to the +x-direction outer side of the first inner medium enclosure; the size of the first outer medium enclosure in the x-direction is d xo , the size of the first outer medium enclosure in the y-direction and the z-direction are the same as the first inner medium enclosure, the dielectric coefficient and the magnetic permeability coefficient are ε _xo and μ _xo , the conductivity and the magnetic conductivity are σ _xo and σ m_xo , and satisfy σ m_xo / σ _xo =μ _xo / ε _xo ; A second inner medium surrounding plate is arranged at a distance of L from the z axis in the -x direction x The second inner medium surrounding plate is symmetrical about the y axis and is in close contact with the outer side of the inner medium cover and the outer medium cover in the -x direction at the position of the z axis. The dimensions of the second inner medium surrounding plate in the x direction, the y direction and the z direction are the same as those of the first inner medium surrounding plate. The dielectric coefficient, the magnetic permeability coefficient, the electrical conductivity and the magnetic permeability of the second inner medium surrounding plate are the same as those of the first inner medium surrounding plate. a second outer dielectric fence close to an outer side of the second inner dielectric fence in the -x direction, symmetric about the y axis, and having the same size in the x direction, the y direction and the z direction as the first outer dielectric fence; and the second outer dielectric fence has the same dielectric coefficient, magnetic permeability coefficient, electrical conductivity and magnetic conductivity as the first outer dielectric fence; A third inner medium enclosure is arranged at a distance L from the z axis in the +y direction y The third inner medium enclosure is symmetrical about the x axis and is in close contact with the outer side of the inner medium cover and the outer medium cover in the +y direction at the position of y / 2; the dimension of the third inner medium enclosure in the y direction is d yi The dimensions of the third inner medium enclosure in the x direction and the z direction are L x and L z respectively; the dielectric coefficient, the magnetic permeability coefficient, the electrical conductivity and the magnetic permeability are the same as those of the first inner medium enclosure. The third outer medium enclosing plate is symmetrical about the x-axis and is close to the +y direction outer side surface of the third inner medium enclosing plate; the size of the third outer medium enclosing plate in the y direction is d yo , the sizes in the x direction and the z direction are L x and L z respectively; the dielectric coefficient, the magnetic permeability coefficient, the electric conductivity and the magnetic conductivity are all the same as those of the first outer medium enclosing plate; A fourth inner medium enclosing plate is arranged at a distance of L from the z axis in the -y direction y The fourth inner medium enclosing plate is symmetrical about the x axis and is in close contact with the outer side of the inner medium cover and the outer medium cover in the -y direction at the position of the / 2. The fourth inner medium enclosing plate has the same size in the y direction, the x direction and the z direction as the third inner medium enclosing plate, and has the same dielectric coefficient, magnetic permeability coefficient, electrical conductivity and magnetic permeability as the third inner medium enclosing plate. a fourth outer dielectric fence close to an outer side of the fourth inner dielectric fence in the -y direction, symmetric about the x axis, and having the same size in the y direction, the x direction and the z direction as the third outer dielectric fence; and the fourth outer dielectric fence has the same dielectric coefficient, magnetic permeability coefficient, electrical conductivity and magnetic conductivity as the third outer dielectric fence.

3. The fast calculation model of the radiation field of the peak capacitor-single cone antenna integrated simulator according to claim 2, characterized in that: The geometric size parameters and medium parameters of the medium cover and the medium enclosure are determined by scanning optimization calculation to obtain the optimal solution, specifically: under the precondition of ensuring that the simulator radiation field measuring points are located in the closed space, scanning optimization calculation is performed on d zi , L x , L y , d zo , d xi , d xo , d yi , d yo , ε _zi , μ _zi , σ _zi , σ m_zi , ε _zo , μ _zo , σ _zo , σ m_zo , ε _xi , μ _xi , σ _xi , σ m_xi , ε _xo , μ _xo , σ _xo and σ m_xo to obtain the optimal solution of the above parameters of the fast calculation model.

4. The fast computation model of the radiation field of the peak capacitor-monopole antenna integrated simulator according to claim 2, wherein, The conical height H in the fast calculation model is the distance H between the excitation source loading plane and the PEC pad s 2~4 times.

5. The fast computation model of the radiation field of the peak capacitor-monopole antenna integrated simulator according to claim 4, wherein, If the original simulator conical height H0=15m, the height of the excitation source loading plane H s =2.063m; then: the height H of the cone in the fast calculation model is 7.2 m. d zi = 60 mm, L x = L y = 39.92 m, d zo = 20 mm, d xi = 20 mm, d xo = 20 mm, d yi = 20 mm, d yo = 20 mm; Satisfying σ m_zi / σ _zi =μ _zi / ε _zi The dielectric constant ε of the inner dielectric cover under certain conditions _zi =ε0 and permeability μ _zi =μ0, ε0 and μ0 are the permittivity and permeability in vacuum, respectively, and the conductivity σ is... _zi ≈0.00007042606 S / m and permeability σ m_zi =10Ω / m, satisfying σ m_zo / σ _zo =μ _zo / ε _zo The dielectric constant ε of the outer dielectric cover under certain conditions _zo =ε0 and permeability μ _zo =μ0, conductivity σ _zo ≈0.31691727 S / m and permeability σ m_zo =45000Ω / m, satisfying σ m_xi / σ _xi =μ _xi / ε _xi The dielectric constant ε of the first, second, third, and fourth inner dielectric plates under the condition. _xi =ε0 and permeability μ _xi =μ0, conductivity σ _xi ≈0.007042606 S / m and permeability σ m_xi =1000Ω / m, satisfying σ m_xo / σ _xo =μ _xo / ε _xo The dielectric constant ε of the first, second, third, and fourth outer dielectric plates under the given conditions _xo =ε0 and permeability μ _xo =μ0, conductivity σ _xo ≈0.007042606 S / m and permeability σ m_xo =1000Ω / m.

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