A power combining device capable of suppressing harmonics
Patent Information
- Application Number
- CN202521184513.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-11
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-06-11
AI Technical Summary
功放器为非线性元件，其输出的谐波会影响功率合成装置的多项性能指标
本实用新型可抑制谐波的功率合成装置，通过设置谐波抑制线，可有效抑制谐波，具有广泛的应用价值。
Smart Images
Figure CN224818103U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electromagnetic wave transmission technology, and in particular to a power combining device that can suppress harmonics. Background Technology
[0002] A power combining device is a device that combines the energy of N input signals into the energy of M output signals (where N≥2 and N>M); the reverse of the power combining device is a power distribution device.
[0003] Power amplifiers amplify signals, while power combiners combine the output signals of multiple power amplifiers to achieve higher power output. Power amplifiers are non-linear components, and their output harmonics can affect many performance indicators of the power combining device.
[0004] Existing power combining devices (see) Figure 1 It has almost no suppression effect on harmonics (see) Figure 2 This severely restricts its application prospects. Utility Model Content
[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a power combining device that can effectively suppress harmonics.
[0006] The objective of this utility model is achieved through the following technical solution: A power combining device capable of suppressing harmonics includes a branch connected to a main circuit and a harmonic suppression line. One end of the harmonic suppression line is connected to the main circuit and / or the branch circuit, and the other end is grounded. The length of the harmonic suppression line is n / 2 of the harmonic wavelength, where n is a natural number that is not zero. Alternatively / and, one end of the harmonic suppression line is connected to the main circuit and / or the branch circuit, and the other end is open-circuited. The length of the harmonic suppression line is n / 4 of the harmonic wavelength, where n is an odd number.
[0007] Furthermore, there are n harmonic suppression lines, which are connected in parallel, and n ≥ 2.
[0008] This utility model has the following advantages: This utility model relates to a power combining device that can suppress harmonics. By setting a harmonic suppression line, it can effectively suppress harmonics and has a wide range of application value. Attached Figure Description
[0009] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0010] Figure 1 This is a circuit diagram of a prior art power combining device; Figure 2 for Figure 1 Simulation diagram of the power combining device shown; Figure 3 This is a circuit diagram of Embodiment 1 of the power combining device for suppressing harmonics according to this utility model; Figure 4 for Figure 3 The simulation curve of the power combining device that can suppress harmonics is shown. Figure 5 This is a circuit diagram of Embodiment 2 of the power combining device for suppressing harmonics according to this utility model; Figure 6 for Figure 5 The simulation curve of the power combining device that can suppress harmonics is shown. Figure 7 The circuit diagram is shown in Embodiment 3 of the power combining device for suppressing harmonics according to this utility model. Figure 8 for Figure 7 The simulation curve of the power combining device that can suppress harmonics is shown. Figure 9 This is a circuit diagram of Embodiment 4 of the power combining device for suppressing harmonics according to this utility model; Figure 10 for Figure 9 The simulation curve of the power combining device that can suppress harmonics is shown. Figure 11 This is a circuit diagram of Embodiment 5 of the power combining device for suppressing harmonics according to this utility model; Figure 12 for Figure 11 The simulation curve of the power combining device that can suppress harmonics is shown. Figure 13 This is a circuit diagram of Embodiment 6 of the power combining device for suppressing harmonics according to this utility model; Figure 14 for Figure 13 The simulation curve of the power combining device that can suppress harmonics is shown. In the diagram: 1-Main road; 2-Branch road; 3-Harmonic suppression line. Detailed Implementation
[0011] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0012] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0013] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0014] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0015] Example 1: A power combining device capable of suppressing harmonics includes a branch 2 connected to a main circuit 1, and a harmonic suppression line 3. One end of the harmonic suppression line 3 is connected to the main circuit, and the other end is grounded. The length of the harmonic suppression line 3 is n / 2 of the harmonic wavelength, where n is a non-zero natural number. See [link to example]. Figure 3 The harmonic suppression line 3 can effectively suppress harmonics, see... Figure 4 .
[0016] Example 2: A power combining device capable of suppressing harmonics includes a branch 2 connected to a main circuit 1, and a harmonic suppression line 3. One end of the harmonic suppression line 3 is connected to the main circuit, and the other end is grounded. The length of the harmonic suppression line 3 is n / 2 of the harmonic wavelength, where n is a non-zero natural number. There are two harmonic suppression lines 3 connected in parallel. (See...) Figure 5 The harmonic suppression lines 3 are connected in parallel, which can broaden the suppression bandwidth, see... Figure 6 In some embodiments, in order to further broaden the suppression bandwidth, the number of harmonic suppression lines 3 may be greater than 2, and the harmonic suppression lines 3 are connected in parallel (no figure).
[0017] Example 3: A power combining device capable of suppressing harmonics includes a branch 2 connected to the main circuit 1, and a harmonic suppression line 3. One end of the harmonic suppression line 3 is connected to the branch circuit, and the other end is grounded. The length of the harmonic suppression line 3 is n / 2 of the harmonic wavelength, where n is a non-zero natural number. See [link to example]. Figure 7 The harmonic suppression line 3 can effectively suppress harmonics, see... Figure 8 In some embodiments, in order to broaden the suppression bandwidth, the number of harmonic suppression lines 3 may be greater than or equal to 2, and the harmonic suppression lines 3 may be connected in parallel (no figure).
[0018] Example 4: A power combining device capable of suppressing harmonics includes a branch 2 connected to a main circuit 1, and a harmonic suppression line 3. One end of the harmonic suppression line 3 is connected to the main circuit, and the other end is open-circuited. The length of the harmonic suppression line 3 is n / 4 of the harmonic wavelength, where n is an odd number. See [link to example]. Figure 9 The harmonic suppression line 3 can effectively suppress harmonics, see... Figure 10 .
[0019] Example 5: A power combining device capable of suppressing harmonics includes a branch 2 connected to a main circuit 1, and a harmonic suppression line 3. One end of the harmonic suppression line 3 is connected to the main circuit, and the other end is open. The length of the harmonic suppression line 3 is n / 4 of the harmonic wavelength, where n is an odd number. There are two harmonic suppression lines 3 connected in parallel. See [link to example]. Figure 11 The harmonic suppression lines 3 are connected in parallel, which can broaden the suppression bandwidth, see... Figure 12 In some embodiments, in order to further broaden the suppression bandwidth, the number of harmonic suppression lines 3 may be greater than 2, and the harmonic suppression lines 3 are connected in parallel (no figure).
[0020] Example 6: A power combining device capable of suppressing harmonics includes a branch 2 connected to a main circuit 1, and a harmonic suppression line 3. One end of the harmonic suppression line 3 is connected to the branch circuit, and the other end is open. The length of the harmonic suppression line 3 is n / 4 of the harmonic wavelength, where n is an odd number. See [link to example]. Figure 13 The harmonic suppression line 3 can effectively suppress harmonics, see... Figure 14 In some embodiments, in order to broaden the suppression bandwidth, the number of harmonic suppression lines 3 may be greater than or equal to 2, and the harmonic suppression lines 3 may be connected in parallel (no figure).
[0021] It should be noted that the above embodiments can be implemented individually or in any combination. Regardless of whether they are implemented individually or in any combination, the resulting power combining device can effectively suppress harmonics. Due to space limitations, these will not be elaborated on here.
[0022] In summary, combining Figure 4 , Figure 6 , Figure 8 , Figure 10 , Figure 12 and Figure 14 As shown in the simulation curve, the power combining device of this invention, which can suppress harmonics, can effectively suppress harmonics and is suitable for widespread use.
[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A power combining device capable of suppressing harmonics, comprising a branch (2) connected to a main circuit (1), and further comprising a harmonic suppression line (3), characterized in that: One end of the harmonic suppression line (3) is connected to the main road and / or branch road, and the other end is grounded. The length of the harmonic suppression line (3) is n / 2 of the harmonic wavelength, where n is a natural number that is not zero. Or / and, One end of the harmonic suppression line (3) is connected to the main road and / or branch road, and the other end is open. The length of the harmonic suppression line (3) is n / 4 of the harmonic wavelength, where n is an odd number.
2. The power combining device capable of suppressing harmonics according to claim 1, characterized in that: The harmonic suppression line (3) is n, and the n harmonic suppression lines (3) are connected in parallel, where n≥2.