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Broadband V type resistor loading reduced dipole antenna

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Publication number
CN103928754A
CN103928754A CN 201410171139 CN201410171139A CN103928754A CN 103928754 A CN103928754 A CN 103928754A CN 201410171139 CN201410171139 CN 201410171139 CN 201410171139 A CN201410171139 A CN 201410171139A CN 103928754 A CN103928754 A CN 103928754A
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radiation
ends
antenna
resistor
loading
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CN 201410171139
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Chinese (zh)
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CN103928754B (en )
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张锋
王顺
纪奕才
方广有
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中国科学院电子学研究所
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Abstract

The invention discloses a broadband V type resistor loading reduced dipole antenna and a manufacturing method of the broadband V type resistor loading reduced dipole antenna. The antenna comprises two radiation arms, a loading resistor, supporting rods and an input port, wherein the two radiation arms are symmetrical to each other and form a V shape. Each radiation arm is composed of two metal wires which are in a trapezoid shape and parallel and symmetrical to each other, the two metal wires are used for improving current distribution on the radiation arm, the radiation arm is expanded by the corresponding supporting rods to form a trapezoid shape, and the radiation arm is provided with two tail ends. The loading resistor is electrically connected with the tail ends of the low ends of the two radiation arms respectively and used for reducing reflection current of the tail ends of the radiation arms, and the tail ends of the high ends of the two radiation arms are led out to form the feed ends of the antenna and used for signal input. The broadband V type resistor loading reduced dipole antenna has the advantages of being simple in structure, small in size, convenient to install and the like, and is suitable for fixed observation or movable observation with limited place sizes.

Description

—种宽带V型电阻加载折合阵子天线 - Broadband species folded V-resistive loading time around antenna

技术领域 FIELD

[0001] 本发明涉及一种应用于宽带高频测距雷达领域的天线,尤其是一种小型化宽带V型电阻加载折合阵子天线 [0001] The present invention relates to an antenna applicable to a high-frequency wideband ranging radar field, in particular a miniaturized broadband folded V-resistive loading time around antenna

背景技术 Background technique

[0002] 宽带天线是测距雷达系统中一个重要的组成部分,它的性能直接影响着雷达系统的整体性能。 [0002] Broadband antennas are an important part of a radar ranging system, its performance directly affects the overall performance of the radar system. 宽带高频测距雷达系统多采用宽带扫频编码信号或线性调频信号,因此要求天线应具有良好的辐射特性和宽带阻抗特性。 Broadband multi-frequency radar system uses ranging encoded wideband signal sweep or chirp signals, thus requiring an antenna should have good radiation characteristic and broadband impedance characteristics. 目前宽带高频测距雷达常用的天线形式有电阻加载Delta天线,电阻加载折合阵子天线以及对数周期天线等。 Current broadband frequency ranging radar antenna commonly used form of resistively loaded antenna Delta, equivalent to resistive loading time around LPDA antennas and the like. 在电离层探测等实际应用中,对于安装场地有诸多限制,要求天线尺寸尽可能小且便于安装。 In practice ionospheric and the like, there are many restrictions to the installation site, required antenna size as small as possible and easy to install. 目前用于电离层探测的宽带天线尺寸都很大,如工作在高频段的电阻加载水平折合阵子天线长约30m,占地面积较大,且其低频段辐射特性很差。 Broadband antenna currently used for ionospheric size are large, such as work load resistance level equivalent to the high frequency band antenna length time around 30m, larger area, and the low-band radiation characteristic thereof is poor. 因此,开发一种小型化的宽带天线,对于推动宽带高频测距雷达技术的发展和应用有着十分积极的作用。 Therefore, the development of a miniaturized broadband antenna, for promoting the development and application of broadband high-frequency range radar technology has a very active role.

发明内容 SUMMARY

[0003] 本发明的目的在于改善现有技术存在的不足,提供一种小型化宽带V型电阻加载折合阵子天线。 [0003] The object of the present invention is to improve the shortcomings of the prior art, to provide a compact V-type wideband antenna resistive load equivalent time around.

[0004] 本发明提供了一种宽带V型电阻加载折合阵子天线,包括:两个辐射臂(2),加载电阻(3),多个支撑杆(41)、(42)、(43)、(44),输入端口(I),所述两个辐射臂(2)结构完全相同且左右对称分布;其中: [0004] The present invention provides a broadband time around V-resistive loading folded antenna, comprising: two radiating arms (2), load resistance (3), a plurality of support bars (41), (42), (43), (44), an input port (I), (2) structure of the two radiating arms are identical and symmetrical profile; wherein:

[0005] 所述辐射臂(2)为短底边呈开口状的梯形,其由两条呈短底边呈开口状的梯形且平行对称的金属线(21)、(22)末端电性连接构成;所述辐射臂(2)由四个所述支撑杆(41)、(42)、(43)、(44)张成梯形形状;所述加载电阻(3)电性连接在所述两个辐射臂(2)各自低端的两个末端之间; [0005] The radiating arm (2) which is open to the smaller base of the trapezoid, which form the two shorter base of which is open and parallel symmetrical trapezoidal wire (21), (22) is electrically connected to terminal configuration; the radiating arm (2) by said four support bars (41) (42), (43), (44) sheets of trapezoidal shape; the loading resistor (3) electrically connected between the two radiating arms each of two ends between the lower end (2);

[0006] 所述两条辐射臂(2)各自高端的两个末端引出后组成输入端口(I),作为所述天线的馈电端,用于信号的输入。 The [0006] two radiating arms (2) after the end of each of two lead-out terminal member input port (the I), as a feeding terminal of said antenna input signals.

[0007] 本发明天线可以满足宽带高频测距雷达系统的要求,具有小型化、宽频带、辐射特性好等特点。 Antenna invention [0007] The present meet the requirements of high-frequency wideband ranging radar system, miniaturization, broadband radiation characteristics and good characteristics.

附图说明 BRIEF DESCRIPTION

[0008] 图1是根据本发明一实施例的小型化宽带V型电阻加载折合阵子天线的立体示意图; [0008] FIG. 1 is a perspective view of the folded antenna loading time around broadband miniaturized according to an embodiment of the present invention is a V-type resistors;

[0009] 图2是根据本发明一实施例的小型化宽带V型电阻加载折合阵子天线的电压驻波比曲线图; [0009] FIG. 2 is an equivalent load resistance of V-shaped graph showing the VSWR of the antenna according to the size of time around a broadband embodiment of the present invention;

[0010] 图3是根据本发明一实施例的小型化宽带V型电阻加载折合阵子天线的增益曲线图。 [0010] FIG. 3 is an equivalent load resistance of V-shaped graph showing the time around the antenna gain according to the size of a broadband embodiment of the present invention. 具体实施方式 detailed description

[0011] 为使本发明的目的、技术方案和优点更加清楚明白,以下结合具体实施例,并参照附图,对本发明作进一步的详细说明。 [0011] To make the objectives, technical solutions, and advantages of the present invention will become more apparent hereinafter in conjunction with specific embodiments, and with reference to the accompanying drawings, the present invention will be further described in detail.

[0012] 图1是根据本发明一实施例的小型化宽带V型电阻加载折合阵子天线的立体示意图,如图1所示,该小型化宽带V型电阻加载折合阵子天线包括:第一辐射臂和第二辐射臂2,加载电阻3,八个支撑杆41、42、43、44,和一个输入端口1,其中: [0012] FIG. 1 is a perspective view of the antenna equivalent time around the V-resistive loading according to the size of a broadband embodiment of the present invention, shown in Figure 1, the size of the V-resistive loading wideband time around folded antenna comprising: a first radiating arm and a second radiating arm 2, load resistor 3, eight support rods 41, 42, and an input port 1, wherein:

[0013] 所述第一辐射臂和第二辐射臂2均为梯形,且短底边处呈开口状,所述第一辐射臂和第二辐射臂结构完全相同,左右对称分布。 [0013] The first radiating arm and the second radiating arm are both trapezoid, and the short bottom edge of which is open, the first radiating arm and the second radiating arm structure is identical, symmetrical distribution. 所述梯形辐射臂2由呈梯形且前后平行对称的第一金属线21、第二金属线22和一个加载电阻3构成,用于改善所述辐射臂2上的电流分布,展宽天线的工作带宽,所述第一金属线21在短底边开口端处低端的一个末端与所述第二金属线22的低端的一个末端电性连接,第一金属线21在短底边开口端处高端的另一个末端与所述第二金属线22的高端的另一个末端电性连接;所述加载电阻3电性连接在所述第一辐射臂和第二辐射臂2短底边开口端处低端的两个末端之间,用于减小所述辐射臂2上的反射电流,以改善天线的电压驻波比特性和辐射波形,展宽天线的工作带宽;所述加载电阻上的电阻通过优化设计获得;所述第一金属线21和第二金属线22分别平行支撑在四个支撑杆41〜44上,张成前后平行的两个开口梯形状的辐射臂。 The ladder 2 by the radiating stub and the front and rear parallel symmetrical trapezoidal first metal line 21, and a second metal wire 22 constituting the load resistors 3, for improving the current distribution on the radiating arm 2, the antenna operating bandwidth broadening the lower end of the first metal wire 21 and one end of the lower end of the second metal line is electrically connected to a terminal at the open end 22 of the short base, a first open end of the metal wire 21 in the shorter base the other end of the tip end of the second metal line electrically connected to the other end 22 of; the loading resistor 3 is electrically connected at the open end of the first arm and the second radiating arm radiation shorter base 2 between the two ends of the lower end for reducing reflection of radiation current on the arm 2, in order to improve voltage standing wave bit and radiation pattern of the antenna, widening the operating bandwidth of the antenna; the resistance of the load resistor by Optimal design is obtained; the first metal wire 21 and the second wire 22 are supported on the four support rods parallel 41~44, the front and rear sheets of the two parallel trapezoidal openings radiation arm.

[0014] 所述第一辐射臂和第二辐射臂2通过绝缘绳索与支撑立柱51、52、6固定在一起,以张成两个对称的梯形,其中,所述第一辐射臂和第二辐射臂的短底边开口端处的两个支撑杆41、44分别通过绝缘绳索固定在第一立柱6的顶部和底部,长边闭合端处的两个支撑杆分别通过绝缘绳索固定在第二立柱51和第三立柱52的顶部和底部,且所述第二立柱51和第二立柱52分别对称分布在第一立柱6的左右两边。 [0014] The first radiating arm and the second radiating arm 2 by an insulating rope supporting post secured 51,52,6 together to span two symmetrical trapezoid, wherein the first and second radiating arm two support rods 41, 44 at the open end of the radiating arms are shorter base insulating rope is fixed to the top and bottom of the first column 6, two long sides of the closed ends of the support rods respectively fixed to the second insulating rope uprights 51 and the third post 52 of the top and bottom, and the second post 51 and second post 52 are symmetrically distributed at both sides of the first column 6.

[0015] 所述第一辐射臂和第二辐射臂2短底边开口端处高端的两个末端引出组成输入端口1,作为所述天线的馈电端,用于信号的输入。 [0015] The first radiating arm and the second radiating arm 2 short open bottom end of the two terminal ends of the lead member input port 1, as a feeding terminal of said antenna input signals.

[0016] 所述天线工作时,所述输入端口I外接信号源,外加的激励信号通过输入端口1,作为本发明天线的馈电端,可连接发射机或接收机,用于信号的输入。 When [0016] the antenna, the input port I external signal source, an excitation signal is applied, as a feeding end of the antenna of the present invention, the transmitter or receiver may be connected via an input port for an input signal.

[0017] 本发明还公开了一种小型化宽带V型电阻加载折合阵子天线的制作方法,其包括: [0017] The present invention also discloses a method for manufacturing a miniaturized broadband V-resistive loading time around folded antenna, comprising:

[0018] 制作所述第一辐射臂2,首先制作第一金属线21、和第二金属线22,然后将所述金属线21、22按第一预定间距固定在所述四个支撑杆41、42、43、44上张成短底边呈开口端的梯形,然后将所述第一金属线21和第二金属线22在短底边开口端处的末端彼此电性连接在一起; [0018] Production of the first radiation arm 2, first, a first metal wire 21, and the second metal wires 22 and the metal wires 21 and 22 by a first predetermined distance is fixed to the four support rods 41 , the sheets 43, 44 into the open end of the shorter base of the trapezoidal shape, and connecting together ends of the first metal wire 21 and a second metal line 22 is short at the bottom edge of the open end of the electrically to each other;

[0019] 以同样的方式制作所述第二辐射臂; [0019] Production of the second radiation arm in the same way;

[0020] 将所述第一辐射臂的短底边开口端处两个支撑杆41、44分别固定在第一立柱6的顶部和底部,将所述第二辐射臂的短底边开口端处的两个支撑杆41和44也分别固定在所述第一立柱6的顶部和底部; [0020] The open end of the smaller base of the first radiating arm 41, 44 of the two support rods are fixed at the top and bottom of the first column 6, the bottom open end of the short second radiating arm the two support rods 41 and 44 are fixed at the top and bottom of the first column 6;

[0021] 将第二立柱51按第二预定间距固定在第一立柱6的右侧,将所述第一辐射臂的长边闭合端处的两个支撑杆42和43分别固定在第二立柱51的顶部和底部; [0021] A second stud 51 is fixed at a second predetermined distance right of the first column 6 of the long sides of the first radiation arm at the closed end of two support rods 42 and 43 are fixed to the second column 51, the top and bottom;

[0022] 将第三立柱52按所述第二预定间距固定在第一立柱6的左侧,并将所述第二辐射臂的长边闭合端处的两个支撑杆42和43分别固定在第三立柱52的顶部和底部。 [0022] The third of the second column 52 by a first predetermined distance in the left column 6, and the closed end of the long side of the second radiation at a fixed arm and two support rods 42 are fixed at 43 the top and bottom of the third column 52.

[0023] 所述加载电阻由一个或多个电阻组成。 [0023] The load resistance of one or more resistors.

[0024] 在图1所示的本发明一实施例中,所述辐射臂2为梯形,所述组成辐射臂2的梯形金属线21、22的间距可在20cm-100cm之间选取,最佳值为20cm,所述梯形的高(即支撑杆44和支撑杆43之间的距离)可在500cm-2000cm之间选取,最佳值为750cm,短底边的长度可在20cm-100cm之间选取,最佳值为50cm,长底边的长度可在300cm-1000cm之间选取,最佳值为400cm。 [0024] The present invention shown in FIG. 1 one embodiment, the radiating arm 2 is a trapezoid, the composition of the trapezoidal metal wire radiating arms 21, 22 spacing of 2 can be selected between 20cm-100cm, the best is 20cm, the high trapezoid (i.e., the distance between the support bars 44 and support bars 43) can be selected between 500cm-2000cm, the optimum value of 750cm, length of the short base may be between 20cm-100cm select, 50cm, the length of the long base of the optimum value can be selected between 300cm-1000cm, the optimum value of 400cm.

[0025] 可选地,所述辐射臂2为直角梯形,其中支撑杆44和支撑杆43之间的金属线与地面平行,且与所述支撑杆42和支撑杆43之间的金属线相互垂直。 [0025] Alternatively, the radiating arm is a right trapezoid 2, wherein the metal wire and the support bar 44 between the support bars 43 parallel to the ground, and the support bar with the metal wire 42 and the support bar 43 between each other vertical.

[0026] 在图1所示的本发明一实施例中,所述辐射臂2通过绝缘绳索与支撑立柱51、52、6固定在一起,以张成两个对称的梯形。 [0026] The present invention shown in FIG. 1 one embodiment, the radiating arm 2 by an insulating rope supporting post 51,52,6 together to span two symmetrical trapezoid.

[0027] 所述输入端口I的输入阻抗可在200欧姆-600欧姆之间选取,最佳值设计为450欧姆。 [0027] The input impedance of the input port I may be 200 ohms between -600 ohms select the optimum design value of 450 ohms.

[0028] 所述支撑杆为空心介质管,长度为30cm,内径为15mm,外径为20mm。 [0028] The media support rod is a hollow tube, a length of 30cm, an inner diameter of 15mm, an outer diameter of 20mm.

[0029] 本发明工作时,所述输入端口I外接信号源,外加的激励信号通过输入端口I传输到辐射臂2上,并通过辐射臂2向周围空间辐射出去,实现雷达测距的功能。 [0029] In operation of the present invention, the input port I external source plus excitation signal I transmitted through the input port 2 to the radiation arm, and the arm 2 by irradiating radiation to the surrounding space out the functions of radar ranging.

[0030] 如图2所示,为根据本发明一实施例的小型化宽带V型电阻加载折合阵子天线的电压驻波比曲线图,图中,横坐标代表频率变量,单位为MHz ;纵坐标代表幅度变量。 [0030] As shown, a V-type broadband miniaturized resistive loading according to an embodiment of the present invention is equivalent to the time around the antenna VSWR graph, diagram, the abscissa represents frequency variable, in units of MHz 2; ordinate on behalf of the magnitude of variables. 在该实施例中,小型化宽带V型电阻加载折合阵子天线的工作频带是3-30MHZ,从图2中可以看出,本发明天线的电压驻波比在频带内都小于2.5。 In this embodiment, the size of the V-resistive loading folded wideband time around the antenna operating band is 3-30 MHz, it can be seen from Figure 2, the voltage standing wave ratio of the antenna of the present invention, within the frequency band less than 2.5.

[0031] 如图3所示,为根据本发明一实施例的小型化宽带V型电阻加载折合阵子天线的增益曲线图,图中,横坐标代表频率变量,单位为MHz ;纵坐标代表增益,单位为dBi。 [0031] 3, is a graph showing a gain in accordance with the size of load resistor of a broadband V embodiment of the present invention is equivalent to time around the antenna diagram, the abscissa represents frequency variable, in units of MHz; ordinate represents gain, the unit is dBi. 在该实施例中,小型化宽带V型电阻加载折合阵子天线的工作频带是3-30MHZ,从图3中可以看出,本发明天线的增益在通带内最高大于_20dB。 In this embodiment, the size of the V-resistive loading folded wideband time around the antenna operating band is 3-30 MHz, it can be seen from Figure 3, the gain of the antenna of the present invention within the passband is greater than the highest _20dB.

[0032] 以上所述的具体实施例,对本发明的目的、技术方案和有益效果进行了进一步详细说明,应理解的是,以上所述仅为本发明的具体实施例而已,并不用于限制本发明,凡在本发明的精神和原则之内,所做的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。 [0032] The foregoing specific embodiments of the object, technical solutions, and advantages of the invention will be further described in detail, it should be understood that the above descriptions are merely embodiments of the present invention, but not intended to limit the present invention, all within the spirit and principle of the present invention, any changes made, equivalent substitutions and improvements should be included within the scope of the present invention.

Claims (9)

1.一种宽带V型电阻加载折合阵子天线,其特征在于,该天线包括:两个辐射臂(2),加载电阻(3),多个支撑杆(41)、(42)、(43)、(44),输入端口(I),所述两个辐射臂(2)结构完全相同且左右对称分布;其中: 所述辐射臂(2)为短底边呈开口状的梯形,其由两条呈短底边呈开口状的梯形且平行对称的金属线(21)、(22)末端电性连接构成;所述辐射臂(2)由四个所述支撑杆(41)、(42)、(43)、(44)张成梯形形状;所述加载电阻(3)电性连接在所述两个辐射臂(2)各自低端的两个末端之间; 所述两条辐射臂(2)各自高端的两个末端引出后组成输入端口(I),作为所述天线的馈电端,用于信号的输入。 A broadband folded V-resistive loading time around the antenna, wherein the antenna comprising: two radiating arms (2), load resistance (3), a plurality of support bars (41), (42), (43) , (44), an input port (the I), the same as (2) and the structure of the two radiating arms symmetrically distributed; wherein: the radiating arm (2) which is open to the smaller base of the trapezoid, consisting of two bands were shorter base of which is open and parallel symmetrical trapezoidal wire (21), (22) is electrically connected to end configuration; the radiating arm (2) by said four support bars (41), (42) , (43), (44) span a trapezoidal shape; the loading resistor (3) electrically connected between two ends of the two radiating arms (2) each of the lower end; the two radiating arms ( 2) after the end of each of two lead-out terminal member input port (the I), as a feeding terminal of said antenna input signals.
2.根据权利要求1所述的天线,其特征在于,组成所述辐射臂(2)的两条梯形金属线(21)、(22)的间距为20cm-100cm,所述梯形的高为500cm-2000cm,靠近所述输入端口(I)的底边长度为20cm-100cm,远离所述输入端口(I)的底边长度为300cm-1000cm。 Height 500cm 2. The antenna according to claim 1, characterized in that the composition of the radiating arm (2) of the two trapezoidal metal lines (21), (22) a pitch of 20cm-100cm, the trapezoid -2000cm, length of the base close to the input port (I) is a 20cm-100cm, length of the base away from the input port (I) of 300cm-1000cm.
3.根据权利要求1所述的天线,其特征在于,所述输入端口(I)外接信号源,外加的激励信号通过输入端口(I)传输到所述两个辐射臂(2)上,并通过所述两个辐射臂(2)向周围空间辐射出去。 3. The antenna according to claim 1, wherein said input port (I) an external source plus the excitation signals to the two radiating arms (2) through the input port (I), and radiation through said two arms (2) is radiated to the surrounding space.
4.根据权利要求1所述的天线,其特征在于,所述输入端口(I)的输入阻抗为450欧姆。 4. The antenna of claim 1, wherein said input port (I) of the input impedance of 450 ohms.
5.根据权利要求1所述的天线,其特征在于,所述加载电阻(3)由电阻构成。 The antenna according to claim 1, wherein said load resistor (3) is constituted by a resistor.
6.根据权利要求1所述的天线,其特征在于,所述加载电阻(3)用于减少所述辐射臂末端的反射电流。 The antenna according to claim 1, wherein said load resistor (3) for reducing the reflected radiation ends of the arms of current.
7.根据权利要求1所述的天线,其特征在于,所述多个支撑杆(41)、(42)、(43)、(44)为空心介质管,长度为30cm,内径为15mm,外径为20mm。 The antenna according to claim 1, wherein said plurality of support bars (41), (42), (43), (44) is a hollow dielectric tube, a length of 30cm, an inner diameter of 15mm, an outer diameter of 20mm.
8.根据权利要求1所述的天线,其特征在于,所述辐射臂为直角梯形,靠近地面的金属线平行于地面且与远离输入端口I的底边垂直。 8. The antenna according to claim 1, wherein the radiating arm is a right trapezoid, near the ground metal line parallel to the ground and perpendicular to the base and away from the input port I of.
9.一种如权利要求1-8任一项所述的宽带V型电阻加载折合阵子天线的制作方法,其包括: 制作第一金属线、和第二金属线,然后将所述第一金属线和第二金属线按第一预定间距固定在所述四个支撑杆上张成短底边呈开口端的梯形,然后将所述第一金属线和第二金属线在短底边开口端处的末端彼此电性连接在一起,形成所述第一辐射臂; 以同样的方式制作所述第二辐射臂; 将所述第一辐射臂的短底边开口端处两个支撑杆分别固定在第一立柱的顶部和底部,将所述第二辐射臂的短底边开口端处的两个支撑杆也分别固定在所述第一立柱的顶部和底部; 将第二立柱按第二预定间距固定在第一立柱的右侧,将所述第一辐射臂的长边闭合端处的两个支撑杆分别固定在第二立柱的顶部和底部; 将第三立柱按所述第二预定间距固定在第一立柱的左侧,并将所述第二 A V-type wideband resistance as claimed in any one of claims 1-8 loading time around folded antenna manufacturing method, comprising: making a first metal wire and a second metal wire, and then the first metal line and the second metal line by a first predetermined distance is fixed to the four support rods span shorter base of the trapezoidal end opening, then the opening end of the first metal wire and a second metal line in the shorter base end electrically connected to each other, forming a first radiating arm; prepared in the same manner as the second radiating arm; the shorter base of said first open end of the radiating arm two support rods respectively fixed top and bottom of the first column, the bottom edge of the short arm of the second radiation at the open end of two support rods respectively fixed to the top and bottom of the first column; the second column at a second predetermined pitch the right side in the first column, the long side first radiation arm at the closed end of two support rods respectively fixed to the top and bottom of the second column; the third column in the second predetermined fixed pitch in the left of the first column and the second 射臂的长边闭合端处的两个支撑杆分别固定在第三立柱的顶部和底部。 Long arm exit side of the closed bottom and two support rods respectively fixed to the top of the third column at the end.
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