Eight-way power divider

Abstract

The embodiment of the application discloses an eight-way power divider, which effectively optimizes a signal distribution path, reduces energy loss and phase mismatch, and improves port isolation performance and mechanical stability by adopting a ceramic bottom plate as a stable base, an iron-yttrium-nickel magnetic core as a magnetic circuit core, and combining a specific winding layout and an impedance matching network, and has low insertion loss, high phase balance, high port isolation, and good environmental adaptability.

Description

Technical Field

[0001] This application relates to the field of microwave communication technology, and in particular to an eight-channel power divider. Background Technology

[0002] A power divider is a passive RF / microwave device used to distribute the power of one input signal to two or more output ports, or to combine multiple signals into one output. For specific applications with eight outputs, current technology has not yet developed a mature design that balances low insertion loss, excellent phase balance, high isolation, and strong environmental adaptability. This makes it impossible to ensure the uniformity and phase consistency of the eight signal distribution, thus limiting the applicability of power dividers in multi-channel systems. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this application provides an eight-channel power divider with low insertion loss, excellent phase balance, high port isolation, and good environmental adaptability.

[0004] This application provides an eight-channel power divider, which includes:

[0005] The ceramic base plate is provided with input pins, first output pins, second output pins, third output pins, fourth output pins, fifth output pins, sixth output pins, seventh output pins, eighth output pins, first ground pins, and second ground pins;

[0006] Ferrite core, mounted on a ceramic substrate;

[0007] The first winding is wound on the ferrite core, and one end of the first winding is connected to the input pin;

[0008] The second winding is wound on the ferrite core, and one end of the second winding is connected to one end of the first winding.

[0009] The third winding is wound on the ferrite core. One end of the third winding is connected to the other end of the second winding. The other end of the third winding is connected to the first output pin, the second output pin, the third output pin, the fourth output pin, the fifth output pin, the sixth output pin, the seventh output pin, and the eighth output pin, respectively.

[0010] Impedance capacitors, a first capacitor, a second capacitor, and a third capacitor. One end of the first capacitor is connected to the other end of the first winding and one end of the second winding, respectively. The other end of the first capacitor is connected to the first ground pin. One end of the second capacitor is connected to the other end of the third winding, the first output pin, the second output pin, the third output pin, and the fourth output pin, respectively. One end of the third capacitor is connected to the other end of the third winding, the fifth output pin, the sixth output pin, the seventh output pin, and the eighth output pin, respectively. The other ends of the second capacitor and the third capacitor are both connected to the second ground pin.

[0011] The isolation resistor includes a first resistor, a second resistor, a third resistor, and a fourth resistor. One end of the first resistor is connected to the first output pin, and the other end of the first resistor is connected to the second output pin. One end of the second resistor is connected to the third output pin, and the other end of the second resistor is connected to the fourth output pin. One end of the third resistor is connected to the fifth output pin, and the other end of the third resistor is connected to the sixth output pin. One end of the fourth resistor is connected to the seventh output pin, and the other end of the fourth resistor is connected to the eighth output pin.

[0012] In some embodiments, the first winding includes a first coil, a second coil, and a third coil;

[0013] One end of the first coil is connected to the input pin, and the other end of the first coil is connected to one end of the second winding, one end of the first capacitor, and one end of the second coil, respectively. One end of the second coil is connected to one end of the third coil, and the other end of the third coil is connected to the first ground pin.

[0014] In some embodiments, the second winding includes a fourth coil and a fifth coil;

[0015] One end of the fourth coil and one end of the fifth coil are respectively connected to the other end of the first winding and one end of the first capacitor, and the other end of the fourth coil and the other end of the fifth coil are respectively connected to one end of the third winding.

[0016] In some embodiments, the third winding includes a sixth coil, a seventh coil, an eighth coil, a ninth coil, a tenth coil, and an eleventh coil;

[0017] Among them, one end of the sixth coil is connected to the other end of the fourth coil, the other end of the sixth coil is connected to one end of the second capacitor, one end of the seventh coil, the first output pin, the second output pin, the third output pin and the fourth output pin respectively, the other end of the seventh coil is connected to one end of the eighth coil, and the other end of the eighth coil is connected to the second ground pin;

[0018] One end of the ninth coil is connected to the other end of the fifth coil. The other end of the ninth coil is connected to one end of the third capacitor, one end of the tenth coil, the fifth output pin, the sixth output pin, the seventh output pin, and the eighth output pin, respectively. The other end of the tenth coil is connected to one end of the eleventh coil. The other end of the eleventh coil is connected to the second ground pin.

[0019] In some embodiments, the impedance capacitor further includes a fifth resistor;

[0020] One end of the fifth resistor is connected to the other end of the fourth coil and one end of the sixth coil, and the other end of the fifth resistor is connected to the other end of the fifth coil and one end of the ninth coil.

[0021] In some embodiments, the eight-way power divider further includes a fourth winding and a fifth winding;

[0022] One end of the fourth winding and one end of the fifth winding are respectively connected to one end of the third winding and one end of the second capacitor. The other end of the fourth winding is respectively connected to the first output pin, the second output pin, the third output pin and the fourth output pin. The other end of the fifth winding is respectively connected to the fifth output pin, the sixth output pin, the seventh output pin and the eighth output pin.

[0023] In some embodiments, the fourth winding includes a twelfth coil and a thirteenth coil, and the fifth winding includes a fourteenth coil and a fifteenth coil;

[0024] One end of the twelfth coil is connected to the other end of the third winding, one end of the thirteenth coil and one end of the second capacitor, the other end of the twelfth coil is connected to the first output pin and the second output pin, and the other end of the thirteenth coil is connected to the third output pin and the fourth output pin.

[0025] One end of the fourteenth coil is connected to the other end of the third winding, one end of the fifteenth coil, and one end of the third capacitor. The other end of the fourteenth coil is connected to the fifth and sixth output pins, respectively. The other end of the fifteenth coil is connected to the seventh and eighth output pins, respectively.

[0026] In some embodiments, the isolation resistor further includes a sixth resistor and a seventh resistor;

[0027] One end of the sixth resistor is connected to the other end of the twelfth coil, the first output pin, and the second output pin, respectively; the other end of the sixth resistor is connected to the other end of the thirteenth coil, the third output pin, and the fourth output pin, respectively.

[0028] One end of the seventh resistor is connected to the other end of the fourteenth coil, the fifth output pin, and the sixth output pin, respectively. The other end of the seventh resistor is connected to the other end of the fifteenth coil, the seventh output pin, and the eighth output pin, respectively.

[0029] In some embodiments, the fourth winding further includes a sixteenth coil, a seventeenth coil, an eighteenth coil, and a nineteenth coil, and the fifth winding further includes a twentieth coil, a twenty-first coil, a twenty-second coil, and a twenty-third coil;

[0030] One end of the sixteenth coil is connected to the other end of the twelfth coil and one end of the seventeenth coil, the other end of the sixteenth coil is connected to one end of the first resistor and the first output pin, and the other end of the seventeenth coil is connected to the other end of the first resistor and the second output pin.

[0031] One end of the eighteenth coil is connected to the other end of the thirteenth coil and one end of the nineteenth coil respectively. The other end of the eighteenth coil is connected to one end of the second resistor and the third output pin respectively. The other end of the nineteenth coil is connected to the other end of the second resistor and the fourth output pin respectively.

[0032] One end of the twentieth coil is connected to the other end of the fourteenth coil and one end of the twentieth coil respectively. The other end of the twentieth coil is connected to one end of the third resistor and the fifth output pin respectively. The other end of the twentieth coil is connected to the other end of the third resistor and the sixth output pin respectively.

[0033] One end of the 22nd coil is connected to the other end of the 15th coil and one end of the 23rd coil. The other end of the 22nd coil is connected to one end of the fourth resistor and the seventh output pin. The other end of the 23rd coil is connected to the other end of the fourth resistor and the eighth output pin.

[0034] In some embodiments, the impedance capacitor further includes a fourth capacitor, a fifth capacitor, a sixth capacitor, and a seventh capacitor, and the ceramic base plate further includes a third grounding pin.

[0035] Among them, one end of the fourth capacitor is connected to the other end of the twelfth coil, one end of the sixteenth coil, and one end of the seventeenth coil, respectively; one end of the fifth capacitor is connected to the other end of the thirteenth coil, one end of the eighteenth coil, and one end of the nineteenth coil, respectively; one end of the sixth capacitor is connected to the other end of the fourteenth coil, one end of the twentieth coil, and one end of the twenty-first coil, respectively; one end of the seventh capacitor is connected to the other end of the fifteenth coil, one end of the twenty-second coil, and one end of the twenty-third coil, respectively; and the other ends of the fourth, fifth, sixth, and seventh capacitors are all connected to the third grounding pin.

[0036] The eight-channel power divider provided in this application effectively optimizes the signal distribution path, reduces energy loss and phase mismatch, and improves port isolation performance and mechanical stability by using a ceramic base plate as a stable substrate, a ferrite core as the magnetic circuit core, and combining a specific winding layout and impedance matching network. It also features low insertion loss, excellent phase balance, high port isolation, and good environmental adaptability. Attached Figure Description

[0037] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1This is a schematic diagram of the structure of the ceramic base plate provided in the embodiments of this application;

[0039] Figure 2 Circuit diagram of an eight-channel power divider provided in the embodiments of this application;

[0040] Figure 3 A top view of an eight-way power divider provided in an embodiment of this application;

[0041] Figure 4 A side view of an eight-way power divider provided in an embodiment of this application;

[0042] Figure 5 This is a bottom view of an eight-channel power divider provided in an embodiment of this application.

[0043] Figure label:

[0044] 100. Ceramic base plate; 101. Input pin; 102. First output pin; 103. Second output pin; 104. Third output pin; 105. Fourth output pin; 106. Fifth output pin; 107. Sixth output pin; 108. Seventh output pin; 109. Eighth output pin; 110. First ground pin; 111. Second ground pin; 112. Third ground pin; 113. Pad; 114. Epoxy resin; 200. Ferrite core; 201. First core; 202. Second core; 203. Third core; 20 4. Fourth magnetic core; 205. Fifth magnetic core; 206. Sixth magnetic core; 207. Seventh magnetic core; 208. Eighth magnetic core; 209. Ninth magnetic core; 210. Tenth magnetic core; 301. First capacitor; 302. Second capacitor; 303. Third capacitor; 304. Fourth capacitor; 305. Fifth capacitor; 306. Sixth capacitor; 307. Seventh capacitor; 401. First resistor; 402. Second resistor; 403. Third resistor; 404. Fourth resistor; 405. Fifth resistor; 406. Sixth resistor; 407. Seventh resistor; 500. Outer casing. Detailed Implementation

[0045] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0046] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0047] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0048] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0049] Furthermore, in this application, unless otherwise explicitly specified or limited in the embodiments, the terms "installation," "connection," "joining," and "fixing" appearing in the embodiments should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral part; it can also be a mechanical connection, an electrical connection, etc. Of course, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication between two components, or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific implementation.

[0050] like Figures 1-5 As shown, this application provides an eight-channel power divider, which includes:

[0051] The ceramic base plate 100 is provided with an input pin 101, a first output pin 102, a second output pin 103, a third output pin 104, a fourth output pin 105, a fifth output pin 106, a sixth output pin 107, a seventh output pin 108, an eighth output pin 109, a first ground pin 110, and a second ground pin 111.

[0052] A ferrite core 200 is mounted on a ceramic base plate 100;

[0053] The first winding is wound on the ferrite core 200, and one end of the first winding is connected to the input pin 101.

[0054] The second winding is wound on the ferrite core 200, and one end of the second winding is connected to one end of the first winding.

[0055] The third winding is wound on the ferrite core 200. One end of the third winding is connected to the other end of the second winding. The other end of the third winding is connected to the first output pin 102, the second output pin 103, the third output pin 104, the fourth output pin 105, the fifth output pin 106, the sixth output pin 107, the seventh output pin 108 and the eighth output pin 109 respectively.

[0056] Impedance capacitors, first capacitor 301, second capacitor 302 and third capacitor 303, one end of first capacitor 301 is connected to the other end of the first winding and one end of the second winding respectively, and the other end of first capacitor 301 is connected to the first ground pin 110. One end of second capacitor 302 is connected to the other end of the third winding, the first output pin 102, the second output pin 103, the third output pin 104 and the fourth output pin 105 respectively. One end of third capacitor 303 is connected to the other end of the third winding, the fifth output pin 106, the sixth output pin 107, the seventh output pin 108 and the eighth output pin 109 respectively. The other ends of second capacitor 302 and third capacitor 303 are both connected to the second ground pin 111.

[0057] The isolation resistors include a first resistor 401, a second resistor 402, a third resistor 403, and a fourth resistor 404. One end of the first resistor 401 is connected to the first output pin 102, and the other end of the first resistor 401 is connected to the second output pin 103. One end of the second resistor 402 is connected to the third output pin 104, and the other end of the second resistor 402 is connected to the fourth output pin 105. One end of the third resistor 403 is connected to the fifth output pin 106, and the other end of the third resistor 403 is connected to the sixth output pin 107. One end of the fourth resistor 404 is connected to the seventh output pin 108, and the other end of the fourth resistor 404 is connected to the eighth output pin 109.

[0058] In this embodiment, the ceramic base plate 100 can be understood as a substrate with high mechanical strength and good thermal conductivity. Multiple pin structures are formed on its surface through printing or etching processes for electrical connection and mechanical fixation. For example, the ceramic base plate 100 can be made of alumina or aluminum nitride materials to meet the requirements of high-frequency signal transmission.

[0059] Ferrite core 200 is a magnetic material with low hysteresis loss and high permeability. Its shape can be designed as a toroidal structure to adapt to different winding layout requirements. The first, second, and third windings can be wound with enameled wire or multi-strand stranded wire, and their number of turns and winding method can be adjusted according to the specific needs of signal distribution. For example, the first winding can be wound in a single layer, while the second and third windings can be wound in multiple layers to achieve different coupling effects.

[0060] The first capacitor 301, the second capacitor 302, and the third capacitor 303 in the impedance capacitors can be ceramic capacitors or film capacitors, and their capacitance values ​​can be selected according to the impedance matching requirements of the circuit. For example, the first capacitor 301 can be set to a value in the range of 10pF to 100pF to achieve impedance matching of the input stage. The first resistor 401, the second resistor 402, the third resistor 403, and the fourth resistor 404 in the isolation resistors can be thick film resistors or metal film resistors, and their resistance values ​​can be set according to the isolation requirements between the output terminals. For example, the first resistor 401 can be set to a value in the range of 50 ohms to 200 ohms to suppress signal crosstalk between adjacent output terminals.

[0061] Meanwhile, the impedance capacitor consists of a first capacitor 301, a second capacitor 302, and a third capacitor 303. One end of the first capacitor 301 is connected to the other end of the first winding and one end of the second winding, respectively, and the other end is connected to the first ground pin 110, providing input stage impedance matching to reduce signal reflection. One end of the second capacitor 302 is connected to the other end of the third winding, and the first output pin 102 to the fourth output pin 105, respectively, and the other end is connected to the second ground pin 111. One end of the third capacitor 303 is connected to the other end of the third winding, and the fifth output pin 106 to the eighth output pin 109, respectively, and the other end is connected to the second ground pin 111, respectively, to perform local impedance matching for the two sets of outputs, optimize signal transmission efficiency, further reduce insertion loss, and improve isolation.

[0062] Specifically, this application addresses the issues of low insertion loss, excellent phase balance, and high isolation in an eight-channel power divider through the coordinated design of the ceramic base plate 100, ferrite core 200, windings, impedance capacitors, and isolation resistors, while also enhancing vibration and shock resistance. Furthermore, based on the low-loss characteristics of the ferrite core 200 and the rational layout of the windings, this application reduces energy loss during signal transmission and optimizes signal transmission efficiency through local matching of the impedance capacitors. The isolation resistor design effectively suppresses signal crosstalk between output terminals, thereby improving the isolation between output terminals.

[0063] In this application, the ceramic base plate 100 serves as the fundamental structure of the entire eight-channel power divider. It is equipped with input pin 101, first output pins 102 to 109, and first and second ground pins 110 and 111, providing a stable mechanical support and electrical connection foundation. A ferrite core 200 is mounted on the ceramic base plate 100, forming a highly efficient magnetic circuit system to reduce energy loss during signal transmission, thereby reducing insertion loss. A first winding is wound on the ferrite core 200, with one end connected to the input pin 101, responsible for receiving the input signal and guiding it into the system. A second winding is also wound on the ferrite core 200, with one end connected to one end of the first winding, achieving initial signal transmission and coupling. A third winding is wound on the ferrite core 200, with one end connected to the other end of the second winding, and the other end connected to the first output pin 102 to 109 respectively, evenly distributing the signal to each output terminal, ensuring phase consistency, and completing the eight-channel signal distribution function.

[0064] The isolation resistors include a first resistor 401, a second resistor 402, a third resistor 403, and a fourth resistor 404. One end of the first resistor 401 is connected to the first output pin 102, and the other end is connected to the second output pin 103. One end of the second resistor 402 is connected to the third output pin 104, and the other end is connected to the fourth output pin 105. One end of the third resistor 403 is connected to the fifth output pin 106, and the other end is connected to the sixth output pin 107. One end of the fourth resistor 404 is connected to the seventh output pin 108, and the other end is connected to the eighth output pin 109. A resistor isolation network is formed between adjacent output pins to effectively suppress signal crosstalk and improve the isolation between output pins.

[0065] The eight-channel power divider provided in this application has its input signal entering through the first winding and then sequentially passing through the second and third windings for signal distribution. Impedance capacitors participate in impedance matching throughout the process to reduce signal loss, while isolation resistors eliminate interference between output terminals. Ultimately, it achieves eight-channel signal distribution with low insertion loss, excellent phase balance, and high isolation, while also enhancing the overall structural stability and solderability, and improving vibration and shock resistance.

[0066] In some embodiments, such as Figure 1 and Figure 2 As shown, the first winding includes a first coil, a second coil, and a third coil; wherein, one end of the first coil is connected to the input pin 101, the other end of the first coil is connected to one end of the second winding, one end of the first capacitor 301, and one end of the second coil, one end of the second coil is connected to one end of the third coil, and the other end of the third coil is connected to the first ground pin 110.

[0067] In this embodiment, the first coil can be understood as a primary coil structure directly connected to the input pin 101. It can be wound with single-strand or multi-strand stranded wire to ensure that the input signal enters the power divider efficiently and without loss. The second coil can be understood as an intermediate stage coil that introduces additional inductance. It achieves the function of dynamically adjusting the signal phase through a specific turns ratio design. The third coil is the terminal coil connected to the ground pin. It can reduce the influence of distributed capacitance by optimizing the winding density and wire diameter. The ferrite core 200 includes a first core 201. The first, second, and third coils are all wound on the first core 201 to form the first inductor L1, the second inductor L2, and the third inductor L3, respectively.

[0068] Specifically, this application effectively solves the problem of inaccurate impedance matching at the input end by subdividing the first winding into three coils and using a specific cascaded connection method. Simultaneously, the design of directly connecting one end of the first coil to the input pin 101 ensures the stability of the signal input and avoids energy loss caused by dispersed contact points. The other end of the first coil is simultaneously connected to one end of the second winding, one end of the first capacitor 301, and one end of the second coil in a multi-path parallel design. The first capacitor 301 is used to bypass high-frequency signals, suppressing impedance abrupt changes at the input end. The cascaded inductor structure formed by the second and third coils refines the inductance distribution gradient, reduces interference from inter-line distributed capacitance on signal transmission, and ensures the uniformity and linearity of the signal during distribution. The design of connecting the third coil to the first ground pin 110 stabilizes the circuit operating environment through a ground reference point. Combined with the first capacitor 301, it forms a low-pass filter network, effectively filtering out high-frequency noise. This optimizes the overall electrical characteristics of the input end, laying a high-precision foundation for subsequent multi-channel signal distribution.

[0069] In some embodiments, such as Figure 1 and Figure 2 As shown, the second winding includes a fourth coil and a fifth coil; one end of the fourth coil and one end of the fifth coil are respectively connected to the other end of the first winding and one end of the first capacitor 301, and the other ends of the fourth coil and the fifth coil are respectively connected to one end of the third winding.

[0070] In this embodiment, the second winding can be understood as a key component used to connect the first and third windings to achieve signal transmission. It optimizes the signal distribution process by decomposing a single winding into two independent coils. The fourth and fifth coils can be made of enameled wire or silver-plated copper wire, and their purpose is to construct parallel signal transmission paths, thereby effectively separating signal channels and avoiding signal concentration effects.

[0071] Meanwhile, the connection method at both ends of the fourth and fifth coils ensures balanced signal injection and synchronous output, aiming to improve phase balance and port isolation performance. The ferrite core 200 also includes a second core 202, on which the fourth and fifth coils can be wound to form the fourth inductor L4 and the fifth inductor L5, respectively. The ceramic base plate 100 has a first grounding pin 110 and two second grounding pins 111, located on the same side and adjacent to each other.

[0072] Specifically, this application achieves uniform signal distribution from the first winding to the third winding by subdividing the second winding into two independent coils. One end of the fourth coil and one end of the fifth coil are connected to the other end of the first winding and one end of the first capacitor 301, thereby enabling the input signal to be simultaneously and evenly distributed to the two coils. Simultaneously, the first capacitor 301 acts as impedance matching, suppressing signal reflection and interference. Meanwhile, the other ends of the fourth and fifth coils are both connected to one end of the third winding, ensuring that the shunted signal can synchronously enter the next stage, maintaining signal phase consistency. This not only optimizes the uniformity of signal distribution but also significantly improves the port isolation effect of the eight outputs, thereby enhancing the overall performance of the power divider. It solves the problem of the initial design's single winding structure being unable to effectively separate signal paths, achieving improved signal distribution uniformity and port isolation, and thus enhancing the overall performance of the eight-channel power divider.

[0073] In some embodiments, such as Figure 1 and Figure 2 As shown, the third winding includes a sixth coil, a seventh coil, an eighth coil, a ninth coil, a tenth coil, and an eleventh coil. One end of the sixth coil is connected to the other end of the fourth coil. The other end of the sixth coil is connected to one end of the second capacitor 302, one end of the seventh coil, the first output pin 102, the second output pin 103, the third output pin 104, and the fourth output pin 105, respectively. The other end of the seventh coil is connected to one end of the eighth coil, and the other end of the eighth coil is connected to the second ground pin 111. One end of the ninth coil is connected to the other end of the fifth coil. The other end of the ninth coil is connected to one end of the third capacitor 303, one end of the tenth coil, the fifth output pin 106, the sixth output pin 107, the seventh output pin 108, and the eighth output pin 109, respectively. The other end of the tenth coil is connected to one end of the eleventh coil, and the other end of the eleventh coil is connected to the second ground pin 111.

[0074] In this embodiment, the third winding can be understood as a key component for distributing the signal into two paths and further realizing eight outputs. It is implemented through a cascaded design of multiple coils. The third winding can be implemented using multiple sets of independent coil links, with each set of links corresponding to the generation and processing of four output signals. The purpose is to ensure that the signal distribution path is clear and evenly divided, while optimizing impedance matching performance. The sixth coil can be understood as a bridge for the signal to enter the third winding from the second winding. One end of it is connected to the other end of the fourth coil, and the other end is connected to the first four output pins and related components through a multi-point parallel structure. The purpose is to avoid signal path interruption or reflection and to achieve uniform signal distribution. The series grounding design of the seventh and eighth coils provides a stable reference potential for the first four outputs, aiming to suppress crosstalk between signals and enhance phase consistency. Similarly, the design of the ninth, tenth, and eleventh coils is optimized for the last four output signals, aiming to balance electrical characteristics and eliminate common-mode interference through symmetrical grounding paths.

[0075] The ferrite core 200 also includes a third core 203 and a fourth core 204. The sixth, seventh, and eighth coils are all wound on the third core 203 to form the sixth inductor L6, the seventh inductor L7, and the eighth inductor L8. The ninth, tenth, and eleventh coils are disposed on the fourth core 204 to form the ninth inductor L9, the tenth inductor L10, and the eleventh inductor L11.

[0076] Specifically, this application effectively solves the problems of uneven signal distribution and insufficient isolation by precisely designing the coil structure of the third winding. One end of the sixth coil is connected to the other end of the fourth coil. This connection ensures that the signal transmitted from the second winding can directly enter the distribution stage of the third winding, avoiding signal path interruption or reflection. The other end of the sixth coil is simultaneously connected to one end of the second capacitor 302, one end of the seventh coil, and the first to fourth output pins, thereby enabling the input signal to be evenly distributed to the first four output terminals. At the same time, the connection of the second capacitor 302 provides a crucial impedance matching function, significantly reducing signal reflection loss during the distribution process.

[0077] The introduction of the seventh coil further optimizes the signal transmission characteristics. Its other end is connected to one end of the eighth coil, and the other end of the eighth coil is connected to the second ground pin 111. This establishes a stable reference potential for the first four outputs, effectively suppressing crosstalk between signals and enhancing phase consistency. Similarly, one end of the ninth coil is connected to the other end of the fifth coil, ensuring the independent transmission of the other signal. The other end of the ninth coil is connected to one end of the third capacitor 303, one end of the tenth coil, and the fifth to eighth output pins 109, achieving a uniform distribution of the last four outputs. The third capacitor 303 also plays an impedance matching role here, maintaining signal integrity. The cascaded grounding structure of the tenth and eleventh coils provides a symmetrical grounding path for the last four outputs. This not only balances the electrical characteristics between the two sets of outputs but also eliminates common-mode interference through the low impedance characteristics of the ground pin, thereby improving the overall isolation and phase balance of the eight signals.

[0078] In this application, by clearly defining the signal distribution path and grounding mechanism, the third winding can precisely control the signal flow, avoiding signal offset or energy loss that may occur in traditional undefined structures. Ultimately, the design goals of low insertion loss and high reliability are achieved. The design of the third winding not only solves the problem of unclear signal distribution path, but also significantly improves the performance of the eight-way power divider by optimizing impedance matching and grounding mechanism, meeting the core requirements of low insertion loss, excellent phase balance and high isolation.

[0079] In some embodiments, such as Figure 1 and Figure 2 As shown, the impedance capacitor also includes a fifth resistor 405; wherein, one end of the fifth resistor 405 is connected to the other end of the fourth coil and one end of the sixth coil, and the other end of the fifth resistor 405 is connected to the other end of the fifth coil and one end of the ninth coil.

[0080] In this embodiment, the fifth resistor 405 can be understood as a component used to enhance the branch isolation capability in the signal distribution path, and it can be implemented using a thick-film resistor or a metal film resistor. By precisely configuring its connection position, the fifth resistor 405 can absorb coupling energy at the branch point, reduce signal reflection and energy transfer, thereby solving the crosstalk problem between branches, while maintaining low insertion loss and suppressing high-frequency interference.

[0081] Specifically, in this application, a direct electrical connection between the output terminal of the second winding and the input terminal of the third winding would cause inter-branch crosstalk during signal distribution, resulting in phase imbalance and insufficient isolation of the output signal. Meanwhile, by connecting a fifth resistor 405 across the connection point between the other end of the fourth coil and one end of the sixth coil, and between the other end of the fifth coil and one end of the ninth coil, a symmetrical isolation path is formed. This utilizes the physical overlap of the winding output and input nodes, providing impedance matching based on the dynamic characteristics of the branch signals without the need for additional circuit nodes, significantly improving the phase balance and port isolation of the output signal.

[0082] In this application, the fifth resistor 405 works together with other components to form a complete signal distribution network. The fifth resistor 405 is connected between key nodes, which can not only effectively absorb the coupling energy between branches, but also cooperate with the first to fourth resistors 404 to build a comprehensive isolation network, thereby ensuring high isolation between each output port and achieving a comprehensive performance improvement.

[0083] In some embodiments, such as Figure 1 and Figure 2 As shown, the eight-way power divider also includes a fourth winding and a fifth winding; one end of the fourth winding and one end of the fifth winding are respectively connected to one end of the third winding and one end of the second capacitor 302; the other end of the fourth winding is respectively connected to the first output pin 102, the second output pin 103, the third output pin 104 and the fourth output pin 105; and the other end of the fifth winding is respectively connected to the fifth output pin 106, the sixth output pin 107, the seventh output pin 108 and the eighth output pin 109.

[0084] In this embodiment, the fourth winding can be understood as a magnetic element used to independently distribute the first four output signals. It can be implemented using a multi-turn coil structure, for example, by adjusting the number of coil turns and the winding method to optimize the uniformity and phase consistency of signal distribution. The fifth winding is an independent magnetic coupling path designed for the last four output signals. It can be implemented using a similar design method, with the aim of reducing the electromagnetic coupling strength between output ports and improving isolation performance.

[0085] Specifically, the introduction of the fourth and fifth windings aims to construct a group-independent signal distribution architecture, thereby effectively solving the problem of insufficient isolation between output ports. By introducing signals from the output of the third winding and transmitting them to the corresponding output pins via the fourth and fifth windings respectively, group management of eight output signals is achieved. This not only shortens the signal transmission path but also reduces the number of electrical nodes within the group, thereby significantly reducing signal crosstalk between output ports under high-frequency conditions.

[0086] Meanwhile, the fourth and fifth windings are connected to one end of the second capacitor 302, forming an impedance matching network. This avoids impedance abrupt changes caused by direct connection to the output pin, thereby suppressing signal reflection and improving matching accuracy.

[0087] Furthermore, one end of the fourth winding is connected to the output terminal of the third winding and the matching terminal of the second capacitor 302, thereby introducing the signal into the capacitor matching network to optimize impedance and ensure signal stability during transmission. The other end of the fourth winding directly drives the first to fourth output pins 105, significantly reducing mutual interference within the group by establishing dedicated magnetic coupling paths for the first four outputs. Similarly, the fifth winding is configured according to the signal requirements of the last four outputs. One end is connected to the output terminal of the third winding and the matching terminal of the second capacitor 302 to achieve impedance matching, while the other end independently drives the fifth to eighth output pins 109, forming a symmetrical isolation mechanism. This ensures the balance of amplitude and phase of the eight outputs and avoids the isolation degradation caused by sharing the same electrical node under high-frequency signals.

[0088] In this application, the introduction of the fourth and fifth windings enables the eight-way power divider to achieve higher isolation and better phase balance under high-frequency operating conditions, meeting the performance requirements of low insertion loss and high reliability, further enhancing the independence of the output ports, and providing a structural basis for improving the overall performance of the power divider.

[0089] In some embodiments, such as Figure 1 and Figure 2 As shown, the fourth winding includes a twelfth coil and a thirteenth coil, and the fifth winding includes a fourteenth coil and a fifteenth coil. One end of the twelfth coil is connected to the other end of the third winding, one end of the thirteenth coil, and one end of the second capacitor 302. The other end of the twelfth coil is connected to the first output pin 102 and the second output pin 103. The other end of the thirteenth coil is connected to the third output pin 104 and the fourth output pin 105. One end of the fourteenth coil is connected to the other end of the third winding, one end of the fifteenth coil, and one end of the third capacitor 303. The other end of the fourteenth coil is connected to the fifth output pin 106 and the sixth output pin 107. The other end of the fifteenth coil is connected to the seventh output pin 108 and the eighth output pin 109.

[0090] In this embodiment, the twelfth coil can be understood as a key component for distributing signals from the third winding to the first output pin 102 and the second output pin 103. It can be implemented using a single-layer or multi-layer winding method to ensure the uniformity and stability of signal transmission. The thirteenth coil can be understood as a component that provides independent signal paths for the third output pin 104 and the fourth output pin 105. It can optimize phase synchronization by adjusting the number of winding turns or wire diameter, thereby reducing interference with other output terminals. The fourteenth and fifteenth coils have similar functions in the fifth winding, serving the fifth to eighth output pins 109 respectively. They can improve the uniformity of signal distribution by changing the core material or winding structure. The ferrite core 200 also includes a fifth core 205 and a sixth core 206. The twelfth and thirteenth coils are wound on the fifth core 205 to form the twelfth inductor L12 and the thirteenth inductor L13. The fourteenth and fifteenth coils are wound on the sixth core 206 to form the fourteenth inductor L14 and the fifteenth inductor L15.

[0091] Specifically, this application optimizes the signal distribution path by splitting the fourth and fifth windings into independent coil pairs, thereby effectively improving the isolation and phase consistency between the outputs. The twelfth and thirteenth coils are coupled together, avoiding abrupt changes and reflections in the signal transmission process, while the independent path characteristic reduces cross-interference with other outputs. The fourteenth and fifteenth coils continue this isolation mechanism, ensuring uniform distribution and overall phase balance across the eight outputs.

[0092] In this application, by introducing the twelfth and thirteenth coils in the fourth winding and the fourteenth and fifteenth coils in the fifth winding, their cooperation with the third winding and impedance capacitor can further enhance the low insertion loss and high reliability performance of the power divider. This not only solves the signal interference problem caused by the general winding structure, but also significantly improves the isolation and phase balance of the power divider, meeting the high performance requirements of multi-output scenarios.

[0093] In some embodiments, such as Figure 1 and Figure 2 As shown, the isolation resistor also includes a sixth resistor 406 and a seventh resistor 407; wherein, one end of the sixth resistor 406 is connected to the other end of the twelfth coil, the first output pin 102 and the second output pin 103 respectively, and the other end of the sixth resistor 406 is connected to the other end of the thirteenth coil, the third output pin 104 and the fourth output pin 105 respectively; one end of the seventh resistor 407 is connected to the other end of the fourteenth coil, the fifth output pin 106 and the sixth output pin 107 respectively, and the other end of the seventh resistor 407 is connected to the other end of the fifteenth coil, the seventh output pin 108 and the eighth output pin 109 respectively.

[0094] In this embodiment, the sixth resistor 406 can be understood as a resistive element used to enhance the isolation performance between the first four output signals. It can be implemented using a thick-film resistor or a metal film resistor, with the aim of suppressing signal coupling between different coil groups through precise resistance value design. The seventh resistor 407 is set for the isolation requirements between the last four output signals. It can also be implemented using a thick-film resistor or a metal film resistor, with the aim of maintaining the phase consistency of each output port and absorbing high-frequency noise. The twelfth and thirteenth coils, as key signal path nodes for the first four outputs, form a dynamic impedance matching relationship with the output pins through the sixth resistor 406, thereby effectively reducing signal energy leakage. The fourteenth and fifteenth coils respectively carry the last four output signals, and their connection points with the output pins are suppressed for electromagnetic interference through the seventh resistor 407.

[0095] Specifically, this application introduces a sixth resistor 406 and a seventh resistor 407 to perform isolation design for a specific combination of winding coil connection points and output pins, which significantly improves the overall isolation performance of the eight-way power divider.

[0096] One end of the sixth resistor 406 is connected to the other end of the twelfth coil, the first output pin 102 and the second output pin 103. Based on the twelfth coil as the convergence path of the first two output signals, the resistor can be directly anchored at the intersection of the end of the coil and the output pin. This ensures that during the process of the signal being distributed from the twelfth coil to the first and second output pins 103, impedance fluctuations caused by the coil characteristics can be suppressed in real time, and signal energy can be prevented from leaking to the third and fourth output sides.

[0097] Meanwhile, the other end of the sixth resistor 406 is connected to the other end of the thirteenth coil, the third output pin 104 and the fourth output pin 105. The thirteenth coil is used as the key node of the signal path of the last two outputs. The resistor forces the node to be associated with the third and fourth output pins, so that dynamic impedance matching is formed between the first two outputs and the last two output subgroups, thereby eliminating electromagnetic interference between different coil groups during the signal distribution stage.

[0098] The connection method of the seventh resistor 407 is for the last four outputs. One end of it is connected to the other end of the fourteenth coil, the fifth output pin 106 and the sixth output pin 107, and the other end is connected to the other end of the fifteenth coil, the seventh output pin 108 and the eighth output pin 109. This design is based on the fact that the fourteenth coil and the fifteenth coil respectively carry the signal flow of the fifth to sixth and seventh to eighth outputs. The resistor is embedded in the connection hub between the end of the coil and the output pin. This not only maintains the phase consistency of each output port, but also absorbs high-frequency noise through the energy dissipation characteristics of the resistor, preventing the isolation between the subgroups inside the last four outputs from deteriorating due to signal reflection.

[0099] In this application, by introducing the sixth resistor 406 and the seventh resistor 407, the key coupling positions of the signal in the winding distribution path can be accurately corresponded, which significantly improves the stability and isolation performance of the eight-way power divider in complex electromagnetic environments. At the same time, in solving the problem of missing isolation between winding coil connection points, it can effectively suppress signal coupling between different coil groups. In particular, it significantly reduces crosstalk between the subgroups covered by the twelfth and thirteenth coils in the first four outputs and between the subgroups covered by the fourteenth and fifteenth coils in the last four outputs, thereby improving the overall isolation and phase balance performance of the eight-way power divider.

[0100] In addition, the first isolation resistor, second isolation resistor, third isolation resistor, fourth isolation resistor, fifth isolation resistor, sixth resistor 406 and seventh resistor 407 provided in this application correspond to respectively Figure 2 The resistors R1, R2, R3, R4, R5, R6 and R7, as well as the first isolation resistor, the second isolation resistor, the third isolation resistor, the fourth isolation resistor, the fifth isolation resistor, the sixth resistor 406 and the seventh resistor 407, can all be thick film resistors and are directly formed in the ceramic base plate 100.

[0101] In some embodiments, such as Figure 1 and Figure 2 As shown, the fourth winding also includes coils sixteen, seventeen, eighteen, and nineteen; the fifth winding also includes coils twentieth, twenty-first, twenty-second, and twenty-third. One end of coil sixteen is connected to the other end of coil twelve and coil seventeen, and the other end of coil sixteen is connected to one end of resistor 401 and the first output pin 102. The other end of coil seventeen is connected to the other end of resistor 401 and the second output pin 103. One end of coil eighteen is connected to the other end of coil thirteen and coil nineteen, and the other end of coil eighteen is connected to one end of resistor 402 and the third output pin 104. The other end of coil 9 is connected to the other end of the second resistor 402 and the fourth output pin 105 respectively; one end of coil 20 is connected to the other end of coil 14 and coil 21 respectively, the other end of coil 20 is connected to the other end of resistor 403 and the fifth output pin 106 respectively, the other end of coil 21 is connected to the other end of resistor 403 and the sixth output pin 107 respectively; one end of coil 22 is connected to the other end of coil 15 and coil 23 respectively, the other end of coil 22 is connected to the other end of resistor 404 and the seventh output pin 108 respectively, and the other end of coil 23 is connected to the other end of resistor 404 and the eighth output pin 109 respectively.

[0102] The ferrite core 200 also includes a seventh core 207, an eighth core 208, a ninth core 209, and a tenth core 210. The sixteenth and seventeenth coils can be wound on the seventh core 207 to form the sixteenth inductor L16 and the seventeenth inductor L17. The eighteenth and nineteenth coils can be wound on the eighth core 208 to form the eighteenth inductor L18 and the nineteenth inductor L19. The twentieth and twenty-first coils can be wound on the ninth core 209 to form the twentieth inductor L20 and the twenty-first inductor L21. The twenty-second and twenty-third coils can be wound on the tenth core 210 to form the twenty-second inductor L22 and the twenty-third inductor L23.

[0103] In this embodiment, the sixteenth coil can be understood as a key inductor element for signal transmission and matching. It can be implemented using a single-layer or multi-layer winding structure, with the aim of optimizing the signal path through cascading. Similarly, the seventeenth to twenty-third coils are all independent inductor units, which can meet specific impedance matching requirements by adjusting the number of turns or wire diameter, thereby improving signal isolation and phase balance performance.

[0104] Specifically, this application constructs a multi-stage inductor network by extending the coil structure of the fourth winding, effectively solving the problem of insufficient signal coupling between the output terminals. One end of the sixteenth coil is connected to the other end of the twelfth coil and one end of the seventeenth coil, using the existing signal output path of the twelfth coil as an input source to form a cascaded inductor chain. This allows the signal to undergo a smooth transition rather than a direct abrupt change during transmission, avoiding the intrusion of high-frequency noise. The other end of the sixteenth coil is connected to one end of the first resistor 401 and the first output pin 102, combining the inductor with the isolation resistor to create a local impedance matching node, suppressing signal reflection and enhancing the directional control of the first output pin 102. The other end of the seventeenth coil is connected to the other end of the first resistor 401 and the second output pin 103, completing a closed-loop inductor-resistor network for the first and second output pins 103. This upgrades the role of the isolation resistor from simple resistive coupling to an LC resonant structure, significantly improving the isolation accuracy of the output terminal pair.

[0105] Similarly, the eighteenth and nineteenth coils construct the matching network for the third and fourth output pins 105 based on the output path of the thirteenth coil. The twentieth and twenty-first coils optimize the fifth and sixth output pins 107 using the fourteenth coil, and the twenty-second and twenty-third coils refine the seventh and eighth output pins 109 through the fifteenth coil. Each new coil introduces an additional inductive component based on the output of the existing coils, enabling the signal distribution process to achieve gradual attenuation and phase correction, thereby systematically solving the interference problem between multiple outputs and ensuring uniform distribution and high isolation of the eight signals.

[0106] In this application, the design of a multi-stage inductor network not only improves the overall performance stability of the power divider but also further enhances its vibration and shock resistance. Simultaneously, it fully utilizes the large-area grounding characteristics of the ceramic base plate 100, combined with the low-loss advantage of the ferrite core, to achieve reliable operation of the power divider in complex environments. The ceramic base plate 100 is equipped with solder pads 113, and the inductor leads are electronically spot-welded to the ceramic base plate 100. The inductors are then bonded and fixed using high-adhesion epoxy resin 114. Furthermore, this application does not significantly increase the product size while introducing the new coil, meeting the requirements of a compact design and achieving both usage and testing standards.

[0107] Furthermore, in the process of fabricating the inductor using the ferrite core 200, the capacitance between the wires can be determined by stranding the wires, and the connection to the ceramic base plate 100 is achieved by electronic spot welding, thereby reducing the capacitance between the wires and the ceramic base plate 100. Simultaneously, this application uses low-loss capacitors and high-precision thick-film resistors for assembly, and employs large-area grounding for the product, thus achieving the requirements of low insertion loss, excellent phase balance, and high isolation.

[0108] In some embodiments, such as Figure 1 and Figure 2 As shown, the impedance capacitors also include a fourth capacitor 304, a fifth capacitor 305, a sixth capacitor 306, and a seventh capacitor 307. The ceramic base plate 100 also includes a third grounding pin 112. One end of the fourth capacitor 304 is connected to the other end of the twelfth coil, one end of the sixteenth coil, and one end of the seventeenth coil, respectively. One end of the fifth capacitor 305 is connected to the other end of the thirteenth coil, one end of the eighteenth coil, and one end of the nineteenth coil, respectively. One end of the sixth capacitor 306 is connected to the other end of the fourteenth coil, one end of the twentieth coil, and one end of the twenty-first coil, respectively. One end of the seventh capacitor 307 is connected to the other end of the fifteenth coil, one end of the twenty-second coil, and one end of the twenty-third coil, respectively. The other ends of the fourth capacitor 304, the fifth capacitor 305, the sixth capacitor 306, and the seventh capacitor 307 are all connected to the third grounding pin 112.

[0109] In this embodiment, the fourth capacitor 304, the fifth capacitor 305, the sixth capacitor 306, and the seventh capacitor 307 can be understood as compensation elements for local impedance matching, which can be implemented using multilayer ceramic capacitors or film capacitors. The fourth capacitor 304, the fifth capacitor 305, the sixth capacitor 306, and the seventh capacitor 307 can have their capacitance values ​​precisely adjusted to offset the parasitic effects introduced by the newly added coil structure, thereby maintaining the low insertion loss and excellent phase balance performance of the power divider. The third grounding pin 112 can be understood as an independent low-impedance grounding path, the purpose of which is to effectively bypass high-frequency noise and reduce ground loop interference, while avoiding coupling with the original grounding system. Two third grounding pins 112 can be provided on the ceramic base plate 100, with the two grounding pins respectively located on corresponding sides of the ceramic base plate 100.

[0110] Specifically, this application introduces fourth capacitors 304 to seventh capacitors 307 at key nodes in signal distribution to specifically compensate for parasitic parameters caused by the added coil structure. For example, the fourth capacitor 304 is connected to the other end of the twelfth coil, one end of the sixteenth coil, and one end of the seventeenth coil, corresponding to the signal paths of the first and second output pins 103. By adding capacitors at these locations, impedance continuity can be achieved, avoiding signal reflection.

[0111] Similarly, the fifth capacitor 305 is connected to the third and fourth output pins 105, the sixth capacitor 306 to the fifth and sixth output pins 107, and the seventh capacitor 307 to the seventh and eighth output pins 109, thus ensuring that the signal path of each output pair is independently impedance matched, preventing phase distortion. At the same time, the other ends of the newly added capacitors are connected to the third ground pin 112, providing a dedicated low-impedance ground path. This not only effectively bypasses high-frequency noise but also isolates interference sources, thereby optimizing signal integrity, solving the impedance mismatch problem caused by coil thinning, and ensuring the stability of the power divider in high-frequency applications.

[0112] In addition, the twelfth, thirteenth, fourteenth, fifteenth, sixteenth, seventeenth, eighteenth, nineteenth, twentieth, twenty-first, twenty-second, twenty-third, fourth, and fifth inductors each have corresponding parasitic capacitances, namely capacitors C8, C9, C10, C11, C12, C13, C14, C15, C16, C17, C18, C19, C20, and C21, respectively.

[0113] In some embodiments, such as Figure 3 , Figure 4 and Figure 5As shown, the eight-way power divider provided in this application also includes a housing 500. The housing 500 can be encapsulated and cured with a highly adhesive epoxy resin 114 to make the inductors, capacitors, resistors, ceramic base plate 100 and housing 500 inside the eight-way power divider a whole, thereby achieving the vibration resistance, impact resistance and solderability of the eight-way power divider.

[0114] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An eight-channel power divider, characterized in that, include: The ceramic base plate is provided with input pins, first output pins, second output pins, third output pins, fourth output pins, fifth output pins, sixth output pins, seventh output pins, eighth output pins, first ground pins, and second ground pins; A ferrite core is disposed on the ceramic substrate; The first winding is wound on the ferrite core, and one end of the first winding is connected to the input pin; The second winding is wound on the ferrite core, and one end of the second winding is connected to one end of the first winding. The third winding is wound on the ferrite core. One end of the third winding is connected to the other end of the second winding. The other end of the third winding is connected to the first output pin, the second output pin, the third output pin, the fourth output pin, the fifth output pin, the sixth output pin, the seventh output pin, and the eighth output pin, respectively. Impedance capacitors, a first capacitor, a second capacitor, and a third capacitor. One end of the first capacitor is connected to the other end of the first winding and one end of the second winding, respectively. The other end of the first capacitor is connected to the first ground pin. One end of the second capacitor is connected to the other end of the third winding, the first output pin, the second output pin, the third output pin, and the fourth output pin, respectively. One end of the third capacitor is connected to the other end of the third winding, the fifth output pin, the sixth output pin, the seventh output pin, and the eighth output pin, respectively. The other ends of the second capacitor and the third capacitor are both connected to the second ground pin. The isolation resistor includes a first resistor, a second resistor, a third resistor, and a fourth resistor. One end of the first resistor is connected to the first output pin, and the other end of the first resistor is connected to the second output pin. One end of the second resistor is connected to the third output pin, and the other end of the second resistor is connected to the fourth output pin. One end of the third resistor is connected to the fifth output pin, and the other end of the third resistor is connected to the sixth output pin. One end of the fourth resistor is connected to the seventh output pin, and the other end of the fourth resistor is connected to the eighth output pin.

2. The eight-channel power divider according to claim 1, characterized in that, The first winding includes a first coil, a second coil, and a third coil; Wherein, one end of the first coil is connected to the input pin, the other end of the first coil is connected to one end of the second winding, one end of the first capacitor and one end of the second coil, one end of the second coil is connected to one end of the third coil, and the other end of the third coil is connected to the first ground pin.

3. The eight-channel power divider according to claim 1, characterized in that, The second winding includes a fourth coil and a fifth coil; One end of the fourth coil and one end of the fifth coil are respectively connected to the other end of the first winding and one end of the first capacitor, and the other end of the fourth coil and the other end of the fifth coil are respectively connected to one end of the third winding.

4. The eight-channel power divider according to claim 3, characterized in that, The third winding includes a sixth coil, a seventh coil, an eighth coil, a ninth coil, a tenth coil, and an eleventh coil; Wherein, one end of the sixth coil is connected to the other end of the fourth coil, the other end of the sixth coil is connected to one end of the second capacitor, one end of the seventh coil, the first output pin, the second output pin, the third output pin and the fourth output pin respectively, the other end of the seventh coil is connected to one end of the eighth coil, and the other end of the eighth coil is connected to the second ground pin; One end of the ninth coil is connected to the other end of the fifth coil. The other end of the ninth coil is connected to one end of the third capacitor, one end of the tenth coil, the fifth output pin, the sixth output pin, the seventh output pin, and the eighth output pin. The other end of the tenth coil is connected to one end of the eleventh coil. The other end of the eleventh coil is connected to the second ground pin.

5. The eight-channel power divider according to claim 4, characterized in that, The impedance capacitor also includes a fifth resistor; One end of the fifth resistor is connected to the other end of the fourth coil and one end of the sixth coil, and the other end of the fifth resistor is connected to the other end of the fifth coil and one end of the ninth coil.

6. The eight-channel power divider according to any one of claims 1-5, characterized in that, The eight-way power divider also includes a fourth winding and a fifth winding; Wherein, one end of the fourth winding and one end of the fifth winding are respectively connected to one end of the third winding and one end of the second capacitor, the other end of the fourth winding is respectively connected to the first output pin, the second output pin, the third output pin and the fourth output pin, and the other end of the fifth winding is respectively connected to the fifth output pin, the sixth output pin, the seventh output pin and the eighth output pin.

7. The eight-channel power divider according to claim 6, characterized in that, The fourth winding includes the twelfth and thirteenth coils, and the fifth winding includes the fourteenth and fifteenth coils; Wherein, one end of the twelfth coil is connected to the other end of the third winding, one end of the thirteenth coil and one end of the second capacitor respectively, the other end of the twelfth coil is connected to the first output pin and the second output pin respectively, and the other end of the thirteenth coil is connected to the third output pin and the fourth output pin respectively; One end of the fourteenth coil is connected to the other end of the third winding, one end of the fifteenth coil, and one end of the third capacitor. The other end of the fourteenth coil is connected to the fifth output pin and the sixth output pin. The other end of the fifteenth coil is connected to the seventh output pin and the eighth output pin.

8. The eight-channel power divider according to claim 7, characterized in that, The isolation resistor also includes a sixth resistor and a seventh resistor; One end of the sixth resistor is connected to the other end of the twelfth coil, the first output pin, and the second output pin, respectively; the other end of the sixth resistor is connected to the other end of the thirteenth coil, the third output pin, and the fourth output pin, respectively. One end of the seventh resistor is connected to the other end of the fourteenth coil, the fifth output pin, and the sixth output pin, respectively, and the other end of the seventh resistor is connected to the other end of the fifteenth coil, the seventh output pin, and the eighth output pin, respectively.

9. The eight-channel power divider according to claim 7, characterized in that, The fourth winding also includes the sixteenth, seventeenth, eighteenth, and nineteenth coils, and the fifth winding also includes the twentieth, twenty-first, twenty-second, and twenty-third coils; Wherein, one end of the sixteenth coil is connected to the other end of the twelfth coil and one end of the seventeenth coil, the other end of the sixteenth coil is connected to one end of the first resistor and the first output pin, and the other end of the seventeenth coil is connected to the other end of the first resistor and the second output pin; One end of the eighteenth coil is connected to the other end of the thirteenth coil and one end of the nineteenth coil, the other end of the eighteenth coil is connected to one end of the second resistor and the third output pin, and the other end of the nineteenth coil is connected to the other end of the second resistor and the fourth output pin. One end of the twentieth coil is connected to the other end of the fourteenth coil and one end of the twentieth coil, respectively. The other end of the twentieth coil is connected to one end of the third resistor and the fifth output pin, respectively. The other end of the twentieth coil is connected to the other end of the third resistor and the sixth output pin, respectively. One end of the 22nd coil is connected to the other end of the 15th coil and one end of the 23rd coil, the other end of the 22nd coil is connected to one end of the fourth resistor and the seventh output pin, and the other end of the 23rd coil is connected to the other end of the fourth resistor and the eighth output pin.

10. The eight-channel power divider according to claim 9, characterized in that, The impedance capacitor also includes a fourth capacitor, a fifth capacitor, a sixth capacitor, and a seventh capacitor, and the ceramic base plate also includes a third grounding pin; Specifically, one end of the fourth capacitor is connected to the other end of the twelfth coil, one end of the sixteenth coil, and one end of the seventeenth coil; one end of the fifth capacitor is connected to the other end of the thirteenth coil, one end of the eighteenth coil, and one end of the nineteenth coil; one end of the sixth capacitor is connected to the other end of the fourteenth coil, one end of the twentieth coil, and one end of the twenty-first coil; one end of the seventh capacitor is connected to the other end of the fifteenth coil, one end of the twenty-second coil, and one end of the twenty-third coil; and the other ends of the fourth, fifth, sixth, and seventh capacitors are all connected to the third grounding pin.

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