CN106374202A

CN106374202A - High frequency energy storage device

Info

Publication number: CN106374202A
Application number: CN201610813961.3A
Authority: CN
Inventors: 施艳艳; 王萌; 景建伟; 庞家斐; 马鹏飞; 李小方
Original assignee: Henan Normal University
Current assignee: Henan Normal University
Priority date: 2016-09-11
Filing date: 2016-09-11
Publication date: 2017-02-01

Abstract

The invention discloses a high-frequency energy storage apparatus. The high-frequency energy storage apparatus comprises a dielectric substrate an a grounding plate which are consistent in dimension top to bottom and are mutually laminated, wherein a metal antenna patch is attached to the dielectric substrate; a cylindrical metal conductor and four cylindrical holes which perpendicularly run through the dielectric substrate are arranged in the middle part of the dielectric substrate; and a circular hole which is concentric with the bottom surface of the cylindrical metal conductor is formed in the grounding plate. The high-frequency energy storage apparatus has lower return loss, good impedance matching and standing-wave ratio, and relatively high gain, so radio frequency energy in an environment can be efficiently received.

Description

High frequency energy storage device

技术领域technical field

本发明属于电磁能量接收天线技术领域，具体涉及一种用于接收环境中射频能量的高频能量储存装置。The invention belongs to the technical field of electromagnetic energy receiving antennas, and in particular relates to a high-frequency energy storage device for receiving radio frequency energy in the environment.

背景技术Background technique

比较了目前主流的三种无线传输方式，即电磁感应方式、电磁波方式和磁耦合谐振方式。分析了这三种方式各自的优缺点，如传输距离、传输功率、传输效率以及应用范围，发现电磁波无线传输方式具有为低功率传感器供电的特点。Three mainstream wireless transmission methods are compared, namely electromagnetic induction method, electromagnetic wave method and magnetic coupling resonance method. The advantages and disadvantages of these three methods are analyzed, such as transmission distance, transmission power, transmission efficiency and application range, and it is found that the electromagnetic wave wireless transmission method has the characteristics of powering low-power sensors.

发明内容Contents of the invention

本发明解决的技术问题是提供了一种结构简单且设计合理的高频能量储存装置，该天线较其它天线而言拥有的更小的尺寸、相对较低的回拨损耗、良好的阻抗匹配和较高的增益。The technical problem solved by the present invention is to provide a high-frequency energy storage device with simple structure and reasonable design. Compared with other antennas, the antenna has smaller size, relatively low callback loss, good impedance matching and higher gain.

本发明为解决上述技术问题采用如下技术方案，高频能量储存装置，其特征在于包括由上到下尺寸一致且相互贴合的介质基板和接地板，其中介质基板上贴附有金属天线贴片，介质基板的中部设有垂直贯穿介质基板的圆柱形金属导体和四个圆柱形孔洞，接地板上设有与圆柱形金属导体底面同心的圆孔；所述金属天线贴片的圆形覆盖面的半径为0.11405λ，其中λ＝121mm，λ为2.48GHz射频的波长，厚度为0.02mm，材料为铜，所述介质基板的材料为Rogers RO6010，介电常数ε_r＝10.2，厚度d＝2.54mm，长度和宽度均为30mm，金属天线贴片的中心点与介质基板上表面的中心点位置一致；所述金属天线贴片的设计形状及尺寸满足如下要求，建立平面直角坐标系，将(0mm，-2.5mm)作为起点，(13.75mm，-2.5mm)为另一端点沿x轴正方向做出一条长为13.75mm的线段一，以点(13.75mm，-2.5mm)为旋转点，将线段一沿逆时针方向旋转125°，与曲线方程的交点为H(15.901mm，-5.572mm)，以直线y＝-x为对称轴作镜面对称得到点L(5.572mm，-15.901mm)，再沿线段一与x轴夹角为55°的方向，在坐标轴第四区间内延长到原来的3倍，得到延长线段二，将延长线段二以直线y＝-x为对称轴作镜面对称得到延长线段三，延长线段二和延长线段三的交点为分别连接点H(15.901mm，-5.572mm)、和L(5.572mm，-15.901mm)、得到线段HW和线段LW，再次将原点(0mm，0mm)作为起点根据以下公式进行天线贴片形状设计：The present invention adopts the following technical solution to solve the above technical problems. The high-frequency energy storage device is characterized in that it includes a dielectric substrate and a grounding plate that are consistent in size from top to bottom and are attached to each other, wherein a metal antenna patch is attached to the dielectric substrate. , the middle of the dielectric substrate is provided with a cylindrical metal conductor vertically penetrating the dielectric substrate and four cylindrical holes, and the ground plate is provided with a circular hole concentric with the bottom surface of the cylindrical metal conductor; the circular coverage of the metal antenna patch The radius is 0.11405λ, where λ=121mm, λ is the wavelength of 2.48GHz radio frequency, the thickness is 0.02mm, the material is copper, the material of the dielectric substrate is Rogers RO6010, the dielectric constant ε _r =10.2, and the thickness d=2.54mm , the length and width are 30mm, the center point of the metal antenna patch is consistent with the center point position of the upper surface of the dielectric substrate; the design shape and size of the metal antenna patch meet the following requirements, a plane Cartesian coordinate system is established, and (0mm , -2.5mm) as the starting point, (13.75mm, -2.5mm) as the other end point, make a line segment 1 with a length of 13.75mm along the positive direction of the x-axis, and take the point (13.75mm, -2.5mm) as the rotation point, Rotate line segment 1 counterclockwise by 125°, and the equation of the curve The point of intersection is H (15.901mm, -5.572mm), and the point L (5.572mm, -15.901mm) is obtained by mirroring the straight line y=-x as the symmetry axis, and the angle between the line segment 1 and the x axis is 55° The direction is extended to 3 times of the original in the fourth interval of the coordinate axis, and the extension line segment 2 is obtained, and the extension line segment 2 is mirror-symmetrical with the straight line y=-x as the symmetry axis to obtain the extension line segment 3, the extension line segment 2 and the extension line segment 3 The intersection point is Respectively connecting point H (15.901mm, -5.572mm), and L(5.572mm, -15.901mm), Get the line segment HW and line segment LW, and use the origin (0mm, 0mm) as the starting point again to design the shape of the antenna patch according to the following formula:

y＝0(0≤x≤2.5) (1)y＝0(0≤x≤2.5) (1)

$\begin{matrix} y the y = = \sqrt{- - {x x}^{22} + + 55 x x - - 4.6875 4.6875} - - 1.25 1.25 & ((- - 1.25 1.25 \leq \leq y the y \leq \leq 00)) & ((2.5 2.5 \leq \leq x x \leq \leq 3.75 3.75)) \end{matrix} - - - - - - ((22))$

$\begin{matrix} y the y = = \sqrt{- - {x x}^{22} + + 1010 x x - - 23.4375 23.4375} - - 1.25 1.25 & ((- - 2.5 2.5 \leq \leq y the y \leq \leq - - 1.25 1.25)) & ((3.75 3.75 \leq \leq x x \leq \leq 6.25 6.25)) \end{matrix} - - - - - - ((33))$

$\begin{matrix} y the y = = \sqrt{- - {x x}^{22} + + 1515 x x - - 54.6875 54.6875} - - 1.25 1.25 & ((- - 1.25 1.25 \leq \leq y the y \leq \leq 00)) & ((6.25 6.25 \leq \leq x x \leq \leq 7.5 7.5)) \end{matrix} - - - - - - ((44))$

$\begin{matrix} y the y = = \sqrt{- - {x x}^{22} + + 1515 x x - - 5050} - - 2.5 2.5 & ((- - 2.5 2.5 \leq \leq y the y \leq \leq 00)) & ((7.5 7.5 \leq \leq x x \leq \leq 1010)) \end{matrix} - - - - - - ((55))$

$\begin{matrix} y the y = = \sqrt{- - {x x}^{22} + + 27.5 27.5 x x - - 175175} - - 2.5 2.5 & ((- - 6.25 6.25 \leq \leq y the y \leq \leq - - 5.572 5.572)) & ((1010 \leq \leq x x \leq \leq 15.901 15.901)) \end{matrix} - - - - - - ((66))$

将由公式所得到的全部曲线依次首尾相连，得到初始图形一，以直线y＝-x为对称轴，将初始图形一进行镜面对称，得到初始图形二，线段HW、线段LW、初始图形一和初始图形二合并得到旋转图形一，将旋转图形一以点为旋转点，顺时针依次旋转20°、40°、60°、80°、100°、120°、140°、160°、180°、200°、220°、240°、260°、280°、300°、320°和340°，分别得到旋转图形一、旋转图形二、旋转图形三、旋转图形四、旋转图形五、旋转图形六、旋转图形七、旋转图形八、旋转图形九、旋转图形十、旋转图形十一、旋转图形十二、旋转图形十三、旋转图形十四、旋转图形十五、旋转图形十六、旋转图形十七和旋转图形十八，旋转图形一、旋转图形二、旋转图形三、旋转图形四、旋转图形五、旋转图形六、旋转图形七、旋转图形八、旋转图形九、旋转图形十、旋转图形十一、旋转图形十二、旋转图形十三、旋转图形十四、旋转图形十五、旋转图形十六、旋转图形十七和旋转图形十八合并得到封闭图形，将封闭图形的圆形覆盖面半径缩小为原来的0.24377倍得到所需金属天线贴片的设计形状及尺寸，按照设计形状及尺寸裁剪得到金属天线贴片；所述介质基板上四个圆柱形孔洞的半径均为0.5mm，四个圆柱形孔洞的圆心连线构成边长为22mm的正方形，该正方形上下边与介质基板上下侧边的垂直距离分别为2.9mm和5.1mm，正方形左右侧边与介质基板左右两侧的垂直距离分别为3mm和5mm；所述圆柱形金属导体的一端与金属天线贴片连接，圆柱形金属导体的材料为铜，其底面半径r＝0.5mm，厚度d＝2.54mm，圆柱形金属导体与金属天线贴片的连接处圆心与介质基板四条侧边的垂直距离分别为16.57mm、16.57mm、13.43mm和13.43mm，与圆柱形金属导体相对的接地板上圆孔的孔径R＝1.9mm，所述圆柱形金属导体另一端的输出接口与能量管理电路相连，该能量管理电路用于将吸收到的能量进行储存。Connect all the curves obtained by the formula end-to-end in order to obtain the initial figure 1, take the straight line y=-x as the axis of symmetry, mirror the initial figure 1 to obtain the initial figure 2, the line segment HW, the line segment LW, the initial figure 1 and the initial Graphic 2 is merged to obtain rotated graphic 1, and the rotated graphic 1 is represented by points is the rotation point, rotate clockwise by 20°, 40°, 60°, 80°, 100°, 120°, 140°, 160°, 180°, 200°, 220°, 240°, 260°, 280°, 300°, 320° and 340° respectively get rotation figure 1, rotation figure 2, rotation figure 3, rotation figure 4, rotation figure 5, rotation figure 6, rotation figure 7, rotation figure 8, rotation figure 9, and rotation figure 10 , Rotation figure 11, rotation figure 12, rotation figure 13, rotation figure 14, rotation figure 15, rotation figure 16, rotation figure 17 and rotation figure 18, rotation figure 1, rotation figure 2, rotation Figure 3, Figure 4, Figure 5, Figure 6, Figure 7, Figure 8, Figure 9, Figure 10, Figure 11, Figure 12, Figure 13, Figure 14 15, rotating figure 15, rotating figure 16, rotating figure 17 and rotating figure 18 are combined to obtain closed figure, and the circular coverage radius of closed figure is reduced to original 0.24377 times to obtain the design shape of required metal antenna patch and Size, cut according to the design shape and size to obtain the metal antenna patch; the radius of the four cylindrical holes on the dielectric substrate is 0.5mm, and the connecting line of the centers of the four cylindrical holes forms a square with a side length of 22mm. The vertical distances between the upper and lower sides of the dielectric substrate and the upper and lower sides of the dielectric substrate are 2.9mm and 5.1mm respectively, and the vertical distances between the left and right sides of the square and the left and right sides of the dielectric substrate are 3mm and 5mm respectively; one end of the cylindrical metal conductor is attached to the metal antenna Chip connection, the material of the cylindrical metal conductor is copper, the radius of the bottom surface r=0.5mm, the thickness d=2.54mm, the vertical distances between the center of the connection between the cylindrical metal conductor and the metal antenna patch and the four sides of the dielectric substrate are respectively 16.57mm, 16.57mm, 13.43mm and 13.43mm, the diameter of the circular hole on the ground plate opposite to the cylindrical metal conductor is R=1.9mm, the output interface at the other end of the cylindrical metal conductor is connected to the energy management circuit, the energy The management circuit is used to store the absorbed energy.

本发明的技术效果为：高频能量储存装置具有更低的回波损耗、良好的阻抗匹配和驻波以及较高的增益，从而能够高效接收环境中的射频能量。The technical effect of the invention is that the high-frequency energy storage device has lower return loss, good impedance matching and standing wave and higher gain, thereby being able to efficiently receive radio frequency energy in the environment.

附图说明Description of drawings

图1是金属天线贴片的结构示意图；Fig. 1 is a structural schematic diagram of a metal antenna patch;

图2是高频能量储存装置结构示意图；Fig. 2 is a structural schematic diagram of a high-frequency energy storage device;

图3是利用HFSS天线模拟仿真软件模拟的高频能量储存装置的回波损耗图；Fig. 3 is the return loss diagram of the high-frequency energy storage device simulated by HFSS antenna simulation software;

图4是利用HFSS天线模拟仿真软件模拟的高频能量储存装置增益图。Fig. 4 is a gain diagram of a high-frequency energy storage device simulated by HFSS antenna simulation software.

图中：1、介质基板，2、接地板，3、金属天线贴片，4、圆柱形金属导体，5、圆柱形孔洞，6、圆孔。In the figure: 1. Dielectric substrate, 2. Ground plate, 3. Metal antenna patch, 4. Cylindrical metal conductor, 5. Cylindrical hole, 6. Round hole.

具体实施方式detailed description

下面将结合本发明中的附图，对本发明具体实施过程中的技术方案进行清楚、完整、具体的描述。The technical solutions in the specific implementation process of the present invention will be clearly, completely and specifically described below in conjunction with the accompanying drawings in the present invention.

此发明的核心部分是高频能量储存装置设计，在微带天线设计时需要对高频能量储存装置的金属天线贴片的尺寸，介质基板的尺寸、厚度进行理论上的估算，才能在模拟实验的时候更加快速精确的找到适合特定频率的高频能量储存装置。所以下面以矩形微带天线为例，讲解微带天线各个数据参数的理论计算方法。The core part of this invention is the design of the high-frequency energy storage device. In the design of the microstrip antenna, it is necessary to theoretically estimate the size of the metal antenna patch of the high-frequency energy storage device, the size and thickness of the dielectric substrate, and then it can be used in the simulation experiment. More quickly and accurately find high-frequency energy storage devices suitable for specific frequencies. So the following takes the rectangular microstrip antenna as an example to explain the theoretical calculation method of each data parameter of the microstrip antenna.

贴片尺寸L×W，贴片宽度W为：The patch size is L×W, and the patch width W is:

$W W = = \frac{c c}{22 {f f}_{00}} {((\frac{{ϵ ϵ}_{r r} + + 11}{22}))}^{- - \frac{11}{22}} - - - - - - ((11))$

在(1)式中，c为光速，f₀为禁带中心频率，ε_r为相对介电常数。In (1), c is the speed of light, f ₀ is the center frequency of the forbidden band, and ε _r is the relative permittivity.

微带天线介质基板的相对有效介电常数ε_re为：The relative effective permittivity ε _re of the dielectric substrate of the microstrip antenna is:

${ϵ ϵ}_{r r e e} = = \frac{{ϵ ϵ}_{r r} + + 11}{22} + + \frac{{ϵ ϵ}_{r r} - - 11}{22} {((11 + + \frac{1212 h h}{W W}))}^{- - \frac{11}{22}} - - - - - - ((22))$

h表示介质层厚度，为了降低表面波辐射对天线性能的影响，介质基片的厚度应该满足一下的理论计算公式：h represents the thickness of the dielectric layer. In order to reduce the influence of surface wave radiation on the performance of the antenna, the thickness of the dielectric substrate should satisfy the following theoretical calculation formula:

$h h \leq \leq \frac{0.3 0.3 c c}{22 {πf πf}_{u u} \sqrt{{ϵ ϵ}_{r r}}} - - - - - - ((33))$

其中f_u为微带天线的工作的最高频率。Among them f _u is the highest working frequency of the microstrip antenna.

微带天线的等效辐射缝隙长度△L为：The equivalent radiation slot length △L of the microstrip antenna is:

$Δ Δ L L = = 0.412 0.412 h h \frac{(({ϵ ϵ}_{r r e e} + + 0.3 0.3)) ((W W / / h h + + 0.264 0.264))}{(({ϵ ϵ}_{r r e e} - - 0.258 0.258)) ((W W / / h h + + 0.8 0.8))} - - - - - - ((44))$

则微带天线贴片的长度L为：Then the length L of the microstrip antenna patch is:

$L L = = \frac{c c}{22 {f f}_{00}} \frac{11}{\sqrt{{ϵ ϵ}_{r r e e}}} - - 22 Δ Δ L L - - - - - - ((55))$

接地板的尺寸L_g×W_g满足下列理论公式The size of the ground plate L _g × W _g satisfies the following theoretical formula

L_g≥L+6h (6) _Lg≥L +6h (6)

W_g≥W+6h (7) _Wg≥W +6h (7)

矩形微带天线用的是同轴线进行馈电，当确定了矩形贴片的长度和宽度后，一般在微带天线中加入50Ω的标准阻抗。The rectangular microstrip antenna uses a coaxial line for feeding. After the length and width of the rectangular patch are determined, a standard impedance of 50Ω is generally added to the microstrip antenna.

如图1-2所示，高频能量储存装置，包括由上到下尺寸一致且相互贴合的介质基板1和接地板2，其中介质基板1上贴附有金属天线贴片3，介质基板1的中部设有垂直贯穿介质基板1的圆柱形金属导体4和四个圆柱形孔洞5，接地板2上设有与圆柱形金属导体4底面同心的圆孔6；所述金属天线贴片3的圆形覆盖面的半径为0.11405λ，其中λ＝121mm，λ为2.48GHz射频的波长，厚度为0.02mm，材料为铜，所述介质基板1的材料为Rogers RO6010，介电常数ε_r＝10.2，厚度d＝2.54mm，长度和宽度均为30mm，金属天线贴片3的中心点与介质基板1上表面的中心点位置一致；所述金属天线贴片3的设计形状及尺寸满足如下要求，建立平面直角坐标系，将(0mm，-2.5mm)作为起点，(13.75mm，-2.5mm)为另一端点沿x轴正方向做出一条长为13.75mm的线段一，以点(13.75mm，-2.5mm)为旋转点，将线段一沿逆时针方向旋转125°，与曲线方程的交点为H(15.901mm，-5.572mm)，以直线y＝-x为对称轴作镜面对称得到点L(5.572mm，-15.901mm)，再沿线段一与x轴夹角为55°的方向，在坐标轴第四区间内延长到原来的3倍，得到延长线段二，将延长线段二以直线y＝-x为对称轴作镜面对称得到延长线段三，延长线段二和延长线段三的交点为分别连接点H(15.901mm，-5.572mm)、和L(5.572mm，-15.901mm)、得到线段HW和线段LW，再次将原点(0mm，0mm)作为起点根据以下公式进行天线贴片形状设计：As shown in Figure 1-2, the high-frequency energy storage device includes a dielectric substrate 1 and a ground plate 2 that are consistent in size from top to bottom and are attached to each other, wherein a metal antenna patch 3 is attached to the dielectric substrate 1, and the dielectric substrate The middle part of 1 is provided with a cylindrical metal conductor 4 and four cylindrical holes 5 vertically penetrating through the dielectric substrate 1, and a circular hole 6 concentric with the bottom surface of the cylindrical metal conductor 4 is provided on the grounding plate 2; the metal antenna patch 3 The radius of the circular coverage surface is 0.11405λ, where λ=121mm, λ is the wavelength of 2.48GHz radio frequency, the thickness is 0.02mm, the material is copper, the material of the dielectric substrate 1 is Rogers RO6010, and the dielectric constant ε _r =10.2 , thickness d=2.54mm, length and width are 30mm, the center point of the metal antenna patch 3 is consistent with the center point of the upper surface of the dielectric substrate 1; the design shape and size of the metal antenna patch 3 meet the following requirements, Establish a plane Cartesian coordinate system, take (0mm, -2.5mm) as the starting point, and (13.75mm, -2.5mm) as the other end point to make a line segment 1 with a length of 13.75mm along the positive direction of the x-axis, and take the point (13.75mm , -2.5mm) is the rotation point, rotate the line segment 125° counterclockwise, and the curve equation The point of intersection is H (15.901mm, -5.572mm), and the point L (5.572mm, -15.901mm) is obtained by mirroring the straight line y=-x as the symmetry axis, and the angle between the line segment 1 and the x axis is 55° The direction is extended to 3 times of the original in the fourth interval of the coordinate axis, and the extension line segment 2 is obtained, and the extension line segment 2 is mirror-symmetrical with the straight line y=-x as the symmetry axis to obtain the extension line segment 3, the extension line segment 2 and the extension line segment 3 The intersection point is Respectively connecting point H (15.901mm, -5.572mm), and L(5.572mm, -15.901mm), Get the line segment HW and line segment LW, and use the origin (0mm, 0mm) as the starting point again to design the shape of the antenna patch according to the following formula:

y＝0(0≤x≤2.5) (1)y＝0(0≤x≤2.5) (1)

将由公式所得到的全部曲线依次首尾相连，得到初始图形一，以直线y＝-x为对称轴，将初始图形一进行镜面对称，得到初始图形二，线段HW、线段LW、初始图形一和初始图形二合并得到旋转图形一，将旋转图形一以点为旋转点，顺时针依次旋转20°、40°、60°、80°、100°、120°、140°、160°、180°、200°、220°、240°、260°、280°、300°、320°和340°，分别得到旋转图形一、旋转图形二、旋转图形三、旋转图形四、旋转图形五、旋转图形六、旋转图形七、旋转图形八、旋转图形九、旋转图形十、旋转图形十一、旋转图形十二、旋转图形十三、旋转图形十四、旋转图形十五、旋转图形十六、旋转图形十七和旋转图形十八，旋转图形一、旋转图形二、旋转图形三、旋转图形四、旋转图形五、旋转图形六、旋转图形七、旋转图形八、旋转图形九、旋转图形十、旋转图形十一、旋转图形十二、旋转图形十三、旋转图形十四、旋转图形十五、旋转图形十六、旋转图形十七和旋转图形十八合并得到封闭图形，将封闭图形的圆形覆盖面半径缩小为原来的0.24377倍得到所需金属天线贴片3的设计形状及尺寸，按照设计形状及尺寸裁剪得到金属天线贴片3；所述介质基板1上四个圆柱形孔洞的5半径均为0.5mm，四个圆柱形孔洞5的圆心连线构成边长为22mm的正方形，该正方形上下边与介质基板1上下侧边的垂直距离分别为2.9mm和10.1mm，正方形左右侧边与介质基板1左右两侧的垂直距离分别为2mm和11mm；所述圆柱形金属导体4的一端与金属天线贴片3连接，圆柱形金属导体4的材料为铜，其底面半径r＝0.5mm，厚度d＝2.54mm，圆柱形金属导体4与金属天线贴片3的连接处圆心与介质基板1四条侧边的垂直距离分别为16.57mm、16.57mm、13.43mm和13.43mm，与圆柱形金属导体4相对的接地板2上圆孔6的孔径R＝1.9mm，所述圆柱形金属导体4另一端的输出接口与能量管理电路相连，该能量管理电路用于将吸收到的能量进行储存。Connect all the curves obtained by the formula end-to-end in order to obtain the initial figure 1, take the straight line y=-x as the axis of symmetry, mirror the initial figure 1 to obtain the initial figure 2, the line segment HW, the line segment LW, the initial figure 1 and the initial Graphic 2 is merged to obtain rotated graphic 1, and rotated graphic 1 is represented by point is the rotation point, rotate clockwise by 20°, 40°, 60°, 80°, 100°, 120°, 140°, 160°, 180°, 200°, 220°, 240°, 260°, 280°, 300°, 320° and 340° respectively get rotation figure 1, rotation figure 2, rotation figure 3, rotation figure 4, rotation figure 5, rotation figure 6, rotation figure 7, rotation figure 8, rotation figure 9, and rotation figure 10 , Rotation figure 11, rotation figure 12, rotation figure 13, rotation figure 14, rotation figure 15, rotation figure 16, rotation figure 17 and rotation figure 18, rotation figure 1, rotation figure 2, rotation Figure 3, Figure 4, Figure 5, Figure 6, Figure 7, Figure 8, Figure 9, Figure 10, Figure 11, Figure 12, Figure 13, Figure 14 15, rotating figure 16, rotating figure 17 and rotating figure 18 are merged to obtain a closed figure, and the circular coverage radius of the closed figure is reduced to 0.24377 times of the original to obtain the design shape of the required metal antenna patch 3 and size, cut according to the design shape and size to obtain the metal antenna patch 3; the radii of the four cylindrical holes 5 on the dielectric substrate 1 are all 0.5 mm, and the connecting lines between the centers of the four cylindrical holes 5 form a side length of 22 mm The vertical distances between the upper and lower sides of the square and the upper and lower sides of the dielectric substrate 1 are 2.9mm and 10.1mm respectively, and the vertical distances between the left and right sides of the square and the left and right sides of the dielectric substrate 1 are 2mm and 11mm respectively; the cylindrical metal One end of conductor 4 is connected with metal antenna patch 3, and the material of cylindrical metal conductor 4 is copper, and its bottom surface radius r=0.5mm, thickness d=2.54mm, the junction of cylindrical metal conductor 4 and metal antenna patch 3 The vertical distances between the center of the circle and the four sides of the dielectric substrate 1 are 16.57mm, 16.57mm, 13.43mm and 13.43mm respectively, and the diameter of the round hole 6 on the grounding plate 2 opposite to the cylindrical metal conductor 4 is R=1.9mm. The output interface at the other end of the shaped metal conductor 4 is connected to the energy management circuit, and the energy management circuit is used for storing the absorbed energy.

图3是利用HFSS天线模拟仿真软件模拟的高频能量储存装置的回波损耗图，由图可知，该高频能量储存装置的回波损耗为-42dB，比其它相同体积天线的回波损耗还要小，性能非常好。Figure 3 is the return loss diagram of the high-frequency energy storage device simulated by HFSS antenna simulation software. It can be seen from the figure that the return loss of the high-frequency energy storage device is -42dB, which is lower than the return loss of other antennas with the same volume. Be small and perform very well.

图4是利用HFSS天线模拟仿真软件模拟的高频能量储存装置增益图，由图可知，该高频能量储存装置在2.48GHz的增益为3.8dB，方向性非常的稳定。Figure 4 is a gain diagram of the high-frequency energy storage device simulated by HFSS antenna simulation software. It can be seen from the figure that the gain of the high-frequency energy storage device at 2.48GHz is 3.8dB, and the directivity is very stable.

以上实施例描述了本发明的基本原理、主要特征及优点，本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明原理的范围下，本发明还会有各种变化和改进，这些变化和改进均落入本发明保护的范围内。The above embodiments have described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What are described in the above embodiments and description are only to illustrate the principles of the present invention. Without departing from the scope of the principle of the present invention, there will be various changes and improvements in the present invention, and these changes and improvements all fall within the protection scope of the present invention.

Claims

1. high-frequency energy storage device is it is characterised in that include consistent size and medium substrate bonded to each other and connect from top to bottom Metal antenna paster is pasted with floor, wherein medium substrate, the middle part of medium substrate is provided with the circle extending vertically through medium substrate Cylindricality metallic conductor and four cylindrical cavities, earth plate is provided with the circular hole concentric with cylindrical metal conductor bottom surface；Described The radius of the circular coverage rate of metal antenna paster is 0.11405 λ, and wherein λ=121mm, λ are the wavelength of 2.48ghz radio frequency, thick Spend for 0.02mm, material is copper, the material of described medium substrate is rogers ro6010, DIELECTRIC CONSTANT ε_r=10.2, thickness d =2.54mm, length and width is 30mm, the center position of the central point of metal antenna paster and medium substrate upper surface Unanimously；The design shape of described metal antenna paster and size meet following requirement, set up plane right-angle coordinate, will (0mm ,- 2.5mm) as starting point, (13.75mm, -2.5mm) is that another end points makes the line segment of an a length of 13.75mm along x-axis positive direction One, with point (13.75mm, -2.5mm) for the point of rotation, line segment one is rotated 125 ° in the counterclockwise direction, with curvilinear equationIntersection point be h (15.901mm, -5.572mm), minute surface pair is made for axis of symmetry with straight line y=-x Claim to obtain point l (5.572mm, -15.901mm), then the direction being 55 ° along line segment one and x-axis angle, interval in coordinate axess the 4th Inside extend to original 3 times, be extended line segment two, to make minute surface with straight line y=-x for axis of symmetry symmetrical by extending line segment two To extending line segment three, extend line segment two and the intersection point of prolongation line segment three is Difference junction point h (15.901mm, -5.572mm),And l (5.572mm, -15.901mm),Obtain line segment hw and line segment lw, then Secondary initial point (0mm, 0mm) is carried out antenna patch shape design as starting point according to below equation:

Y=0 (0≤x≤2.5) (1)

\begin{matrix} y = \sqrt{- x^{2} + 5 x - 4.6875} - 1.25 & (- 1.25 \leq y \leq 0) & (2.5 \leq x \leq 3.75) \end{matrix} - - - (2)

\begin{matrix} y = \sqrt{- x^{2} + 10 x - 23.4375} - 1.25 & (- 2.5 \leq y \leq - 1.25) & (3.75 \leq x \leq 6.25) \end{matrix} - - - (3)

\begin{matrix} y = \sqrt{- x^{2} + 15 x - 54.6875} - 1.25 & (- 1.25 \leq y \leq 0) & (6.25 \leq x \leq 7.5) \end{matrix} - - - (4)

\begin{matrix} y = \sqrt{- x^{2} + 15 x - 50} - 2.5 & (- 2.5 \leq y \leq 0) & (7.5 \leq x \leq 10) \end{matrix} - - - (5)

\begin{matrix} y = \sqrt{- x^{2} + 27.5 x - 175} - 2.5 & (- 6.25 \leq y \leq - 5.572) & (10 \leq x \leq 15.901) \end{matrix} - - - (6)

To be joined end to end successively by the whole curves obtained by formula, obtain initial graphics one, with straight line y=-x as axis of symmetry, Initial graphics one are carried out minute surface symmetrically, obtains initial graphics two, line segment hw, line segment lw, initial graphics one and initial graphics two Merge and obtain rotating graphs one, by rotating graphs one with pointFor rotation Turning point, clockwise successively rotation 20 °, 40 °, 60 °, 80 °, 100 °, 120 °, 140 °, 160 °, 180 °, 200 °, 220 °, 240 °, 260 °, 280 °, 300 °, 320 ° and 340 °, respectively obtain rotating graphs one, rotating graphs two, rotating graphs three, rotating graphs 4th, rotating graphs five, rotating graphs six, rotating graphs seven, rotating graphs eight, rotating graphs nine, rotating graphs ten, rotating graphs 11, rotating graphs 12, rotating graphs 13, rotating graphs 14, rotating graphs 15, rotating graphs 16, rotation figure Shape 17 and rotating graphs 18, rotating graphs one, rotating graphs two, rotating graphs three, rotating graphs four, rotating graphs five, Rotating graphs six, rotating graphs seven, rotating graphs eight, rotating graphs nine, rotating graphs ten, rotating graphs 11, rotating graphs 12, rotating graphs 13, rotating graphs 14, rotating graphs 15, rotating graphs 16, rotating graphs 17 and rotation figure Shape ten octadentate simultaneously obtains closed figure, and the circular coverage rate reduced radius of closed figure are that original 0.24377 times obtains institute Need design shape and the size of metal antenna paster, obtain metal antenna paster according to design shape and size cutting；Given an account of On matter substrate, the radius of four cylindrical cavities is 0.5mm, and it is 22mm that the circle center line connecting of four cylindrical cavities constitutes the length of side Square, on this square, the following vertical dimension with the upper and lower side of medium substrate is respectively 2.9mm and 5.1mm, square Left and right side is respectively 3mm and 5mm with the vertical dimension of the medium substrate left and right sides；One end of described cylindrical metal conductor with Metal antenna paster connects, and the material of cylindrical metal conductor is copper, its bottom surface radius r=0.5mm, thickness d=2.54mm, circle Cylindricality metallic conductor is respectively with the vertical dimension of four sides in the junction center of circle and medium substrate of metal antenna paster 16.57mm, 16.57mm, 13.43mm and 13.43mm, the aperture r=of circular hole on the earth plate relative with cylindrical metal conductor 1.9mm, the output interface of the described cylindrical metal conductor other end is connected with energy management circuit, and this energy management circuit is used for The energy absorbing is stored.