Power distribution unit and power distribution device

Abstract

The utility model relates to the technical field of electromagnetic wave conduction, in particular to a power distribution unit and a power distribution device.The power distribution unit comprises a main circuit and a branch circuit, the branch circuit is provided with an impedance matching assembly and a second capacitor C2, the impedance matching assembly comprises a first capacitor C1 and an inductor L, one end of the second capacitor C2 is grounded, and the other end of the second capacitor C2 is grounded. The other end of the second capacitor C2 and one end of the inductor L are both connected with the branch circuit, one end of the first capacitor C1 is grounded, and the other end of the first capacitor C1 and the other end of the inductor L are both connected with the main circuit, the power distribution unit is small in size, and the power distribution device adopts the power distribution unit.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic wave conduction, in particular to a power distribution unit and a power distribution device. Background Art

[0002] A power distribution device is a device that divides the energy of an input signal into two or more equal or unequal energy outputs, or conversely, combines the energy of multiple signals into one output, in which case it is a power combining device.

[0003] The power distribution unit of the prior art uses a quarter-wavelength impedance matching method to achieve impedance matching. When the frequency is low, due to the long wavelength, in order to achieve the matching impedance, the impedance matching line 2 has to be designed very long. As Figure 1 shown, when the frequency is 100 MHz, the length L of the impedance matching line 2 is 400 mm. Such a long size is not conducive to the miniaturization of the device and also restricts its application prospects. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a power distribution unit with smaller size, insertion loss and return loss.

[0005] Another purpose of the utility model is to provide a power distribution device that uses the above-mentioned power distribution unit.

[0006] The purpose of the utility model is achieved by the following technical solutions:

[0007] A power distribution unit includes a main path and a branch path. The branch path is provided with an impedance matching component and a second capacitor C 2 , and the impedance matching component includes a first capacitor C 1 and an inductor L. One end of the second capacitor C 2 is grounded, and the other end of the second capacitor C 2 and one end of the inductor L are both connected to the branch path. One end of the first capacitor C 1 is grounded, and the other end of the first capacitor C 1 and the other end of the inductor L are both connected to the main path.

[0008] Further, the number of the impedance matching components is greater than or equal to 2, and the impedance matching components are connected in series.

[0009] Further, the main path is provided with an impedance matching component and a third capacitor C 3 , one end of the third capacitor C 3 is grounded, and one end of the inductor L on the main path and the third capacitor C 3The other ends are all connected to the branch, and the first capacitor C on the main path 1 has one end grounded, and the first capacitor C on the main path 1 has its other end and the other end of the inductor L on the main path both connected to the main path.

[0010] A power distribution unit includes a main path and a branch, and is characterized in that: an impedance matching component is provided on the main path, and the impedance matching component includes a first capacitor C 1 and an inductor L. One end of the first capacitor C 1 is grounded, one end of the inductor L is connected to the branch, and the other end of the first capacitor C 1 and the other end of the inductor L are both connected to the main path.

[0011] Furthermore, the number of the impedance matching components is greater than or equal to 2, and the impedance matching components are arranged in series.

[0012] A power distribution device includes the power distribution unit.

[0013] The present utility model has the following advantages:

[0014] The sizes of the inductor and capacitor of the impedance matching component are both very small. Therefore, compared with the impedance matching line with a quarter-wavelength length in the prior art, the size of the power distribution unit of the present utility model is greatly reduced, realizing the miniaturization of the circuit. At the same time, since both the capacitor and the inductor are energy storage elements and there is almost no energy loss in impedance matching, not only can impedance matching be better achieved, but also the insertion loss and return loss are both small, and the application prospect is relatively wide. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0016] Figure 1 is a schematic circuit diagram of a power distribution unit in the prior art;

[0017] Figure 2 is a schematic circuit diagram of Embodiment 1 of the power distribution unit of the present utility model;

[0018] Figure 3 is a schematic circuit diagram of Embodiment 2 of the power distribution unit of the present utility model;

[0019] Figure 4 is a schematic circuit diagram of Embodiment 3 of the power distribution unit of the present utility model;

[0020] Figure 5 It is a schematic circuit diagram of Embodiment 4 of the power distribution unit of the present utility model;

[0021] Figure 6 It is a schematic circuit diagram of Embodiment 5 of the power distribution unit of the present utility model;

[0022] Figure 7 It is a schematic circuit diagram of Embodiment 6 of the power distribution unit of the present utility model;

[0023] Figure 8 is Figure 2 the insertion loss simulation diagram of;

[0024] Figure 9 is Figure 2 the return loss simulation diagram of;

[0025] Figure 10 is Figure 6 the insertion loss simulation diagram of;

[0026] Figure 11 is Figure 6 the return loss simulation diagram of;

[0027] In the figure: 1 - transmission line; 2 - impedance matching line; 3 - impedance matching component. Specific implementation manners

[0028] To make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0029] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship when the product of this utility model is normally placed. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0030] In addition, terms such as "horizontal", "vertical", "hanging", etc. do not require the components to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only 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 inclined.

[0031] In the present utility model, unless otherwise clearly specified and limited, the first feature being above or below the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being above, over, and on top of the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being below, under, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0032] As Figure 2 shown, a power distribution unit includes a main path and branch paths, and impedance matching components 3 and a second capacitor C are provided on the branch paths 2 , the impedance matching components 3 include a first capacitor C 1 and an inductor L, one end of the second capacitor C 2 is grounded, the other end of the second capacitor C 2 and one end of the inductor L are both connected to the branch path, one end of the first capacitor C 1 is grounded, the other end of the first capacitor C 1 and the other end of the inductor L are both connected to the main path; by using the impedance matching components 3 to replace the impedance matching lines on the branch paths, since the sizes of the inductor and capacitor are very small, compared with the quarter-wavelength impedance matching lines in the prior art, the size of the power distribution unit of the present utility model is greatly reduced, realizing the miniaturization of the circuit. At the same time, since both the capacitor and the inductor are energy storage components and there is almost no energy loss in impedance matching, not only can impedance matching be better achieved, but also the insertion loss and return loss are both small, as shown in Figure 8 and Figure 9 .

[0033] Furthermore, as Figure 3 shown, the number of the impedance matching components 3 is greater than or equal to 2, and the impedance matching components 3 are arranged in series; by connecting multiple impedance matching components 3 in series on the branch path, the size of the power distribution unit can be further reduced, and at the same time, the working frequency range can also be expanded.

[0034] Furthermore, as Figure 4 and Figure 5 shown, impedance matching components 3 and a third capacitor C 3 are provided on the main path, and one end of the third capacitor C 3One end is grounded, one end of the inductor L on the main path and the third capacitor C 3 The other ends of both are connected to the branch, and the first capacitor C on the main path 1 One end is grounded, and the first capacitor C on the main path 1 The other end and the other end of the inductor L on the main path are both connected to the main path; By setting the impedance matching component 3 on the main path, the size of the power distribution unit can be further reduced, and at the same time, the operating frequency range can be further expanded.

[0035] As Figure 6 Shown, a power distribution unit includes a main path and a branch, the main path is provided with an impedance matching component 3, and the impedance matching component 3 includes a first capacitor C 1 And an inductor L, one end of the first capacitor C 1 Is grounded, one end of the inductor L is connected to the branch, and the other end of the first capacitor C 1 And the other end of the inductor L are both connected to the main path; Using the impedance matching component 3 to replace the impedance matching line on the main path, because the sizes of the inductor and capacitor are very small, compared with the quarter-wavelength impedance matching line of the prior art, the size of the power distribution unit of the present invention is greatly reduced, realizing the miniaturization of the circuit. At the same time, since both the capacitor and the inductor are energy storage components and there is almost no energy loss in impedance matching, not only can impedance matching be better achieved, but also the insertion loss and return loss are both small, as shown in Figure 10 And Figure 11 .

[0036] Further, as Figure 7 Shown, the number of the impedance matching components 3 is greater than or equal to 2, and the impedance matching components 3 are connected in series; By connecting multiple impedance matching components 3 in series on the main path, the size of the power distribution unit can be further reduced, and at the same time, the operating frequency range can be expanded.

[0037] A power distribution device includes the power distribution unit.

[0038] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A power distribution unit, comprising a main circuit and a branch circuit, characterized in that: The branch is provided with an impedance matching component (3) and a second capacitor C2, the impedance matching component (3) comprising a first capacitor C1 and an inductor L, one end of the second capacitor C2 is grounded, the other end of the second capacitor C2 and one end of the inductor L are both connected to the branch, one end of the first capacitor C1 is grounded, the other end of the first capacitor C1 and the other end of the inductor L are both connected to the main circuit.

2. The power distribution unit according to claim 1, characterized in that: The number of the impedance matching components (3) is greater than or equal to 2, and the impedance matching components (3) are arranged in series.

3. The power distribution unit according to any one of claims 1 or 2, characterized in that: The main circuit is provided with an impedance matching component (3) and a third capacitor C3, one end of the third capacitor C3 is grounded, one end of the inductor L on the main circuit and the other end of the third capacitor C3 are both connected to the branch circuit, one end of the first capacitor C1 on the main circuit is grounded, and the other end of the first capacitor C1 on the main circuit and the other end of the inductor L on the main circuit are both connected to the main circuit.

4. A power distribution unit, comprising a main circuit and a branch circuit, characterized in that: The main circuit is provided with an impedance matching component (3), the impedance matching component (3) comprising a first capacitor C1 and an inductor L, one end of the first capacitor C1 is grounded, one end of the inductor L is connected to the branch circuit, and the other end of the first capacitor C1 and the other end of the inductor L are both connected to the main circuit.

5. The power distribution unit according to claim 4, characterized in that: The number of the impedance matching components (3) is greater than or equal to 2, and the impedance matching components (3) are arranged in series.

6. A power distribution device, characterized in that: A power distribution unit comprising any one of claims 1 to 5.

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