WO2021103149A1 - 等功分网络和电路板 - Google Patents

等功分网络和电路板 Download PDF

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Publication number
WO2021103149A1
WO2021103149A1 PCT/CN2019/124570 CN2019124570W WO2021103149A1 WO 2021103149 A1 WO2021103149 A1 WO 2021103149A1 CN 2019124570 W CN2019124570 W CN 2019124570W WO 2021103149 A1 WO2021103149 A1 WO 2021103149A1
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Prior art keywords
microstrip
connection line
power divider
equal
unequal
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PCT/CN2019/124570
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English (en)
French (fr)
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沈亚川
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瑞声声学科技(深圳)有限公司
瑞声科技(新加坡)有限公司
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Publication of WO2021103149A1 publication Critical patent/WO2021103149A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/12—Coupling devices having more than two ports
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems

Definitions

  • the utility model relates to the technical field of communication, in particular to an equal power division network and a circuit board.
  • the width of the circuit microstrip trace is the same, and the width of each branch feed trace is the same, resulting in a difference in amplitude and phase.
  • the two sides are caused by different power points.
  • the degree of coupling is different, resulting in a phase difference, so that the antenna sub-vibrator has problems of low efficiency, large coupling degree and phase difference, and serious interference.
  • the purpose of the utility model is to provide a structural optimization design.
  • the purpose is to propose an unequal microstrip power divider, an equally divided microstrip power divider, and a zigzag microstrip line according to the demand for power division differences, which can offset both sides
  • the phase difference caused by the different coupling degree improves the coupling degree of the antenna sub-array, and has low cost and simple structure.
  • the utility model provides an equal power division network.
  • the equal power division network includes an unequal microstrip power divider and an equal division microstrip power divider.
  • the unequal microstrip power divider and the equal division The microstrip power divider is connected through a feed circuit, and the equally divided microstrip power divider includes a zigzag microstrip trace.
  • the unequal microstrip power divider is a one-to-two unequal microstrip power divider, and the power ratio of the one-to-two unequal microstrip power divider is 1:2.
  • the input impedance of the one-to-two unequal microstrip power divider is 50 ohms, and the output impedance is 75 ohms and 150 ohms, respectively.
  • the one-to-two unequal microstrip power divider includes a first connection line, a second connection line, and a third connection line.
  • the first connection line is used to obtain an external signal, and the first connection
  • the wire is electrically connected to the second connection wire, and the first connection wire and the second connection wire are respectively electrically connected to the third connection wire.
  • the divided microstrip power divider is a one divided two divided microstrip power divider, and the power ratio after distribution of the one divided two divided microstrip power divider is 1:1.
  • the input impedance of the one-to-two halving microstrip power divider is 50 ohms, and the output impedance is 100 ohms and 100 ohms, respectively.
  • the one-division two-division microstrip power divider includes a fourth connection line, a fifth connection line, and a sixth connection line, and the fourth connection line is used to obtain external signals, and the fourth connection line Electrically connected to the fifth connecting line, the fourth connecting line and the fifth connecting line are electrically connected to the sixth connecting line at the same time; the fifth connecting line and the sixth connecting line are zigzag microstrips Traces.
  • the present invention also provides a circuit board provided with the above-mentioned equal power division network.
  • the circuit board is a ceramic-filled hydrocarbon material 4730G3 laminated circuit board.
  • the present utility model innovatively proposes an unequal microstrip power divider, an equal microstrip power divider and a zigzag microstrip trace, which can offset the phase difference caused by the different coupling degrees on both sides,
  • the coupling degree of the antenna sub-array is improved, and the cost is low and the structure is simple.
  • Fig. 1 is a schematic diagram of the three-dimensional structure of a 1 ⁇ 3 antenna sub-array provided by the first embodiment of the utility model;
  • FIG. 2 is a schematic plan view of the circuit board shown in FIG. 1;
  • Fig. 3 is an enlarged schematic diagram of part Z1 in Fig. 2;
  • Fig. 4 is an enlarged schematic diagram of part Z2 in Fig. 2;
  • Fig. 5 is an enlarged schematic diagram of part Z1 in Fig. 2;
  • Fig. 6 is an enlarged schematic diagram of part M in Fig. 5;
  • FIG. 7 is an enlarged schematic diagram of part Z2 in FIG. 2;
  • FIG. 8 is an enlarged schematic diagram of part N in FIG. 7;
  • Fig. 9 is a schematic diagram of the A-A cross-sectional structure in Fig. 1;
  • FIG. 10 is an enlarged schematic diagram of the part Y in FIG. 9.
  • the present invention provides an equal power division network, the equal power division network is applied to the circuit board 100, the circuit board 100 is a feeder circuit board, specifically in an embodiment In this case, the circuit board 100 is applied to a 1 ⁇ 3 antenna sub-array 1.
  • the equal power division network includes an unequal microstrip power divider and an equal microstrip power divider, and the unequal microstrip power divider and the equal microstrip power divider are connected through a feed circuit,
  • the bisecting microstrip power divider includes a zigzag microstrip trace.
  • the unequal microstrip power divider is the zone Z11 in Figure 3, and the unequal microstrip power divider is one-to-two unequal microstrip power. Divider, the power ratio of the one-to-two unequal microstrip power divider after distribution is 1:2.
  • the input impedance of the one-to-two unequal microstrip power divider is 50 ohms, and the output impedance is 75 ohms and 150 ohms, respectively.
  • the divided microstrip power divider is zone Z2 in FIG. 4, the divided microstrip power divider is a one divided two divided microstrip power divider, and the one divided two divided microstrip power divider distributes The power ratio afterwards is 1:1.
  • the input impedance of the one-to-two halving microstrip power divider is 50 ohms, and the output impedance is 100 ohms and 100 ohms, respectively.
  • FIG. 2 shows the circuit of a one-to-two unequal microstrip power divider.
  • the one-to-two unequal microstrip power divider includes a first connecting line 101.
  • the second connection line 102 and the third connection line 103, the first connection line 101 is used to obtain external signals, the first connection line 101 is electrically connected to the second connection line 102, and the first connection line 101 is electrically connected to the second connection line 102.
  • connection line 101 and a second connection line 102 are electrically connected to the third connection line 103; specifically, in this embodiment, the microstrip line length c11 of the first connection line 101 is 82.29 mm and the width d11 is 1.92 mm, the microstrip line length c2 of the second connecting line 102 is 20.32mm and the width d2 is 1.37mm, and the microstrip line length c3 of the third connecting line 103 is 15.56mm and the width d3 is 0.51mm.
  • the first The characteristic impedance of the microstrip line of a connecting line 101 is 50 ohms
  • the characteristic impedance of the microstrip line of the second connecting line 102 is a quarter wavelength of 61.2 ohms
  • the characteristic impedance of the microstrip line of the third connecting line 103 is a quarter.
  • the wavelength is 86.6 ohms.
  • the one-to-two halving microstrip power divider includes a fourth connecting line 121, The fifth connection line 122 and the sixth connection line 123, the fourth connection line 121 is used to obtain external signals, the fourth connection line 121 is electrically connected to the fifth connection line 122, and the fourth connection The line 121 and the fifth connection line 122 are respectively electrically connected to the sixth connection line 123; the fifth connection line 122 and the sixth connection line 123 are zigzag microstrip traces; specifically in this embodiment, The fourth connecting line 121 includes a first part 1211 and a second part 1212, the first part 1211 is at right angles to the second part 1212, and the second part 1212 is at right angles to the fifth connecting line 122 and the sixth connecting line 123 Connection; the first part 1211 microstrip line width f11 is 1.92mm, the second part 1212 microstrip line width
  • the third part 1221, the fourth part 1222 and the fifth part 1223 are in a zigzag shape, and the third part 1221 is connected to the second part 1212 of the fourth connecting line 121 at a right angle, the third part 1221 is connected to the sixth connecting line 123 in a straight line, the third part 1221, the fourth part 1222 and the fifth part 1223 have a microstrip line width f2
  • the length e21 of the third part 1221 is 7.40mm
  • the length e22 of the fourth part 1222 is 1.04mm
  • the length e23 of the fifth part 1223 is 6.70mm
  • the sixth connecting line is a zigzag microstrip trace, including the sixth part 1231, the seventh part 1232 and the eighth part 1233, the sixth part 1231, the seventh part 1232 and the eighth part 1233 are in a zigzag shape
  • the sixth part 1231 and the second part of the fourth connecting line 121 1212 is connected at right angles
  • the sixth part 1231 is linearly connected to the
  • the characteristic impedance of the microstrip line of the fourth connection line 121 is 50 ohms
  • the characteristic impedance of the microstrip line of the fifth connection line 122 is a quarter wavelength of 70.7 ohms
  • the characteristic impedance of the microstrip line of the sixth connection line 123 is The quarter wavelength is 70.7 ohms.
  • the present invention also provides a circuit board 100 provided with the above-mentioned equal power division network.
  • the circuit board 100 is a ceramic-filled hydrocarbon material 4730G3 laminated circuit board.
  • the circuit board 100 has a thickness b.
  • the circuit board has a length of 240 mm, a width of 80 mm, and a thickness of b of 0.78 mm.
  • the thickness a of the subnet circuit is 0.035mm.
  • the present utility model innovatively proposes an unequal microstrip power divider, an equal microstrip power divider and a zigzag microstrip trace, which can offset the phase difference caused by the different coupling degrees on both sides,
  • the coupling degree of the antenna sub-array is improved, and the cost is low and the structure is simple.

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Abstract

本公开涉及通讯技术领域，提供了一种等功分网络和电路板。所述等功分网络包括不等分微带功分器和等分微带功分器，所述不等分微带功分器和所述等分微带功分器通过馈电电路连接，所述等分微带功分器包括Z字形微带走线。同时，本公开提供一种电路板。本公开创新地提出不等分微带功分器、等分微带功分器以及Z字形微带走线，通过Z字形微带走线抵消两侧耦合度不同造成的相位差，提升天线子阵耦合度，并且成本低、结构简单。

Description

等功分网络和电路板 技术领域
本实用新型涉及通讯技术领域，尤其涉及一种等功分网络和电路板。
背景技术
现有技术中，一分三的天线子振的馈电电路设计中电路微带走线宽度一致，各分支馈电走线的宽度一致，造成幅相有差异，两侧由于功分不同造成的耦合度不同，产生相位差，使天线子振存在效率低、耦合度和相位差较大的问题，并且干扰严重。
因此，有必要提供一种优化的等功分网络和馈电电路板解决上述问题。
发明概述
技术问题
本实用新型的目的在于提供一种结构优化设计，目的在于针对功分差异需求提出不等分微带功分器、等分微带功分器以及Z字形微带走线，能够抵销两侧耦合度不同造成的相位差，提升天线子阵耦合度，并且成本低、结构简单。
问题的解决方案
技术解决方案
本实用新型的技术方案如下：
本实用新型提供一种等功分网络，所述等功分网络包括不等分微带功分器和等分微带功分器，所述不等分微带功分器和所述等分微带功分器通过馈电电路连接，所述等分微带功分器包括Z字形微带走线。
优选地，所述不等分微带功分器为一分二不等分微带功分器，所述一分二不等分微带功分器分配后的功率比是1∶2。
优选地，所述一分二不等分微带功分器的输入阻抗为50欧姆，输出阻抗分别为75欧姆和150欧姆。
优选地，所述一分二不等分微带功分器包括第一连接线、第二连接线和第三连接线，所述第一连接线用于获取外部的信号，所述第一连接线与所述第二连接 线电性连接，所述第一连接线、第二连接线分别与所述第三连接线电性连接。
优选地，所述等分微带功分器为一分二等分微带功分器，所述一分二等分微带功分器分配后的功率比是1∶1。
优选地，所述一分二等分微带功分器的输入阻抗为50欧姆，输出阻抗分别为100欧姆和100欧姆。
优选地，所述一分二等分微带功分器包括第四连接线、第五连接线和第六连接线，所述第四连接线用于获取外部的信号，所述第四连接线与所述第五连接线电性连接，所述第四连接线、第五连接线同时与所述第六连接线电性连接；所述第五连接线和第六连接线为Z字形微带走线。
此外，本实用新型还提供一种电路板，所述电路板设有上述的等功分网络。
优选地，所述电路板为陶瓷填充的碳氢化合物材料4730G3层压电路板。
发明的有益效果
有益效果
与现有技术相比，本实用新型创新地提出不等分微带功分器、等分微带功分器以及Z字形微带走线，能够抵销两侧耦合度不同造成的相位差，提升天线子阵耦合度，并且成本低、结构简单。
对附图的简要说明
附图说明
图1为本实用新型实施例一提供的1×3天线子阵的立体结构示意图；
图2为图1中所示的电路板的平面示意图；
图3为图2中的部位Z1的放大示意图；
图4为图2中的部位Z2的放大示意图；
图5为图2中的部位Z1的放大示意图；
图6为图5中的部位M的放大示意图；
图7为图2中的部位Z2的放大示意图；
图8为图7中的部位N的放大示意图；
图9为图1中的A-A剖面结构示意图；
图10为图9中的部位Y的放大示意图。
发明实施例
具体实施方式
为了使本实用新型的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本实用新型进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本实用新型，并不用于限定本实用新型。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本实用新型保护的范围。
本实用新型的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”、“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的实施例能够以除了在这里图示或描述的内容以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
需要说明的是，在本实用新型中涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本实用新型要求的保护范围之内。
请结合参照图1和图2，本实用新型提供了一种等功分网络，所述等功分网络应用于电路板100上，所述电路板100为馈电电路板，具体在一实施例中，所述电路板100应用于1×3天线子阵1上。
所述等功分网络包括不等分微带功分器和等分微带功分器，所述不等分微带功分器和所述等分微带功分器通过馈电电路连接，所述等分微带功分器包括Z字形微带走线。所述电路板100包括第一电路10和第二电路20，第一电路10与第二电路20分别与馈电点连接，最宽处宽度为C1，具体在一实施例中，C1＝48.55mm。
请一并参照图2、图3和图4，所述不等分微带功分器为图3中Z11区域，所述不等分微带功分器为一分二不等分微带功分器，所述一分二不等分微带功分器分配后的功率比是1∶2。所述一分二不等分微带功分器的输入阻抗为50欧姆，输出阻抗分别为75欧姆和150欧姆。
所述等分微带功分器为图4中Z2区域，所述等分微带功分器为一分二等分微带功分器，所述一分二等分微带功分器分配后的功率比是1∶1。所述一分二等分微带功分器的输入阻抗为50欧姆，输出阻抗分别为100欧姆和100欧姆。
请结合参照图2、图5和图6，所示为一分二不等分微带功分器的电路，具体地，所述一分二不等分微带功分器包括第一连接线101、第二连接线102和第三连接线103，所述第一连接线101用于获取外部的信号，所述第一连接线101与所述第二连接线102电性连接，所述第一连接线101、第二连接线102分别与所述第三连接线103电性连接；具体在本实施例中，所述第一连接线101的微带线长度c11为82.29mm宽度d11为1.92mm，所述第二连接线102的微带线长度c2为20.32mm宽度d2为1.37mm，所述第三连接线103的微带线长度c3为15.56mm宽度d3为0.51mm，对应的，第一连接线101的微带线特性阻抗为50欧姆，第二连接线102的微带线特性阻抗是四分之一波长61.2欧姆，第三连接线103的微带线特性阻抗是四分之一波长86.6欧姆。
请结合参照图2、图7和图8，所示为一分二等分微带功分器的电路，具体地，所述一分二等分微带功分器包括第四连接线121、第五连接线122和第六连接线123，所述第四连接线121用于获取外部的信号，所述第四连接线121与所述第五连接线122电性连接，所述第四连接线121、第五连接线122分别与所述第六连接线123电性连接；所述第五连接线122和第六连接线123为Z字形微带走线；具体在本实施例中，所述第四连接线121包括的第一部分1211和第二部分1212，所述第一部分1211与第二部分1212呈直角，所述第二部分1212与第五连接线122和第六连接线123呈直角连接；第一部分1211微带线宽度f11为1.92mm，第二部分1212微带线宽度f12为1.92mm；第一部分1211长度e11为36.95mm宽度，第二部分1212长度e12为3.70mm；第五连接线为Z字形微带走线，包括第三部分1221、第四部分1222和第五部分1223，所述第三部分1221、第四部分1222和第五部分1223呈Z 字形，所述第三部分1221与所述第四连接线121的第二部分1212呈直角连接，第三部分1221与第六连接线123直线连接，第三部分1221、第四部分1222和第五部分1223微带线宽度f2为1.04mm；第三部分1221长度e21为7.40mm，第四部分1222长度e22为1.04mm，第五部分1223长度e23为6.70mm；第六连接线为Z字形微带走线，包括第六部分1231、第七部分1232和第八部分1233，所述第六部分1231、第七部分1232和第八部分1233呈Z字形，所述第六部分1231与所述第四连接线121的第二部分1212呈直角连接，第六部分1231与第五连接线122的第三部分1221直线连接，第六部分1231、第七部分1232和第八部分1233微带线宽度f2为1.04mm；第六连接线123的微带线宽度为1.04mm，第六部分1231长度e31为7.40mm，第七部分1232长度e32为1.04mm，第八部分1233长度e33为5.54mm。对应的，第四连接线121的微带线特性阻抗是50欧姆，第五连接线122的微带线特性阻抗是四分之一波长70.7欧姆，第六连接线123的微带线特性阻抗是四分之一波长70.7欧姆。
请一并参照图1、图9和图10，本实用新型还提供一种电路板100，所述电路板100设有上述的等功分网络。所述电路板100为陶瓷填充的碳氢化合物材料4730G3层压电路板，所述电路板100厚度为b，在本实施例中，电路板长240mm，宽80mm，厚度b为0.78mm，等功分网络电路厚度a为0.035mm。
以上仅为本实用新型的优选实施例，并非因此限制本实用新型的专利范围，凡是利用本实用新型说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本实用新型的专利保护范围内。
与现有技术相比，本实用新型创新地提出不等分微带功分器、等分微带功分器以及Z字形微带走线，能够抵销两侧耦合度不同造成的相位差，提升天线子阵耦合度，并且成本低、结构简单。
以上所述的仅是本实用新型的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本实用新型创造构思的前提下，还可以做出改进，但这些均属于本实用新型的保护范围。

Claims (9)

  1. 一种等功分网络，其特征在于，所述等功分网络包括不等分微带功分器和等分微带功分器，所述不等分微带功分器和所述等分微带功分器通过馈电电路连接，所述等分微带功分器包括Z字形微带走线。
  2. 根据权利要求1所述的等功分网络，其特征在于，所述不等分微带功分器为一分二不等分微带功分器，所述一分二不等分微带功分器分配后的功率比是1∶2。
  3. 根据权利要求2所述的等功分网络，其特征在于，所述一分二不等分微带功分器的输入阻抗为50欧姆，输出阻抗分别为75欧姆和150欧姆。
  4. 根据权利要求2或3所述的等功分网络，其特征在于，所述一分二不等分微带功分器包括第一连接线、第二连接线和第三连接线，所述第一连接线用于获取外部的信号，所述第一连接线与所述第二连接线电性连接，所述第一连接线、第二连接线分别与所述第三连接线电性连接。
  5. 根据权利要求1所述的等功分网络，其特征在于，所述等分微带功分器为一分二等分微带功分器，所述一分二等分微带功分器分配后的功率比是1∶1。
  6. 根据权利要求5所述的等功分网络，其特征在于，所述一分二等分微带功分器的输入阻抗为50欧姆，输出阻抗分别为100欧姆和100欧姆。
  7. 根据权利要求5或6所述的等功分网络，其特征在于，所述一分二等分微带功分器包括第四连接线、第五连接线和第六连接线，所述第四连接线用于获取外部的信号，所述第四连接线与所述第五连接线电性连接，所述第四连接线、第五连接线同时与所述第六连接线电性连接；所述第五连接线和第六连接线为Z字形微带走线。
  8. 一种电路板，其特征在于，所述电路板设有如权利要求1至7任一项所述的等功分网络。
  9. 根据权利要求8的所述的电路板，其特征在于，所述电路板为陶瓷填充的碳氢化合物材料4730G3层压电路板。
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