Waveguide-coaxial power synthesis device
By simplifying the design of the conversion section and conductor, the problems of heat dissipation and fabrication complexity of the waveguide-coaxial power combining device were solved, and the efficient combining and transmission of electromagnetic wave power were realized.
Patent Information
- Application Number
- CN202520057824.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-01-10
AI Technical Summary
Existing waveguide-coaxial power combining devices have complex structures, poor heat dissipation, and affect electromagnetic performance.
The first and second conversion sections employ a simple structure, allowing heat to be transferred through conductors to the outer wall of the waveguide for dissipation. Furthermore, the electromagnetic wave power synthesis is optimized through the arrangement of symmetrical and transitional conductors, achieving a two-in-one or four-in-one electromagnetic wave power synthesis.
It improves heat dissipation, simplifies the manufacturing process, enhances the ability to synthesize electromagnetic wave power, and improves transmission performance.
Smart Images
Figure CN223713040U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to electromagnetic wave transmission technical field, in particular to a waveguide - coaxial power synthesis device. BACKGROUND
[0002] Coaxial line, it is the guide system that two coaxial cylinder conductors constitute, the air or high frequency dielectric is filled between the inner and outer conductors a kind of broadband microwave transmission line.
[0003] Waveguide tube is a hollow, inner wall smooth metal pipe or metal-lined pipe, used to transmit ultra-high frequency electromagnetic waves, through it pulse signal can be transmitted to destination with minimal loss.
[0004] The waveguide-coaxial power synthesis device of prior art, its structure is complex, difficult to realize, and the heat dissipation effect is not good, which affects its electromagnetic performance. UTILITY MODEL CONTENT
[0005] The utility model discloses a waveguide-coaxial power synthesis device to solve at least one technical problem in the prior art.
[0006] The utility model discloses the purpose through the following technical scheme to realize:
[0007] A waveguide-coaxial power synthesis device, comprising:
[0008] Waveguide tube, the waveguide tube includes first H face, second H face, first E face, second E face and closed end;
[0009] First conversion part, the first conversion part includes first conductor and first coaxial, the first conductor is close to closed end setting, one end of the first conductor is connected with the inner wall of first H face, the first coaxial includes first outer conductor and first inner conductor, the first outer conductor is connected with closed end, the first inner conductor is connected with the first conductor after no contact through closed end;
[0010] Second conversion part, the second conversion part includes second conductor and second coaxial, the second conductor is close to closed end setting, one end of the second conductor is connected with the inner wall of second H face, the second conductor is coaxial with the first conductor and is arranged without contact, the second coaxial includes second outer conductor and second inner conductor, the second outer conductor is connected with closed end, the second inner conductor is connected with the second conductor after no contact through closed end.
[0011] Further, further comprising:
[0012] The third conversion part is arranged close to the closed end and the first E face, and comprises a third conductor and a third coaxial. One end of the third conductor is connected with the inner wall of the first H face or the inner wall of the second H face. The third coaxial comprises a third outer conductor and a third inner conductor. The third outer conductor is connected with the first E face. The third inner conductor is connected with the third conductor after passing through the first E face without contact.
[0013] The fourth conversion part is arranged close to the closed end and the second E face, and comprises a fourth conductor and a fourth coaxial. When one end of the third conductor is connected with the inner wall of the first H face, one end of the fourth conductor is connected with the inner wall of the first H face. When one end of the third conductor is connected with the inner wall of the second H face, one end of the fourth conductor is connected with the inner wall of the second H face. The fourth coaxial comprises a fourth outer conductor and a fourth inner conductor. The fourth outer conductor is connected with the second E face. The fourth inner conductor is connected with the fourth conductor after passing through the second E face without contact.
[0014] Further, the first conversion part and the second conversion part are symmetrically arranged about a first neutral plane. The distance from the first neutral plane to the first H face is equal to the distance from the first neutral plane to the second H face. The third conversion part and the fourth conversion part are symmetrically arranged about a second neutral plane. The distance from the second neutral plane to the first E face is equal to the distance from the second neutral plane to the second E face.
[0015] Further, the first conversion part and the second conversion part are centrally arranged.
[0016] Further, the first conversion part further comprises a first transition conductor. The first inner conductor is connected with the first conductor through the first transition conductor. The diameter of the first transition conductor is not equal to that of the first inner conductor or the first conductor. The second conversion part further comprises a second transition conductor. The second inner conductor is connected with the second conductor through the second transition conductor. The diameter of the second transition conductor is not equal to that of the second inner conductor or the second conductor.
[0017] Further, the third conversion part further comprises a third transition conductor. The third inner conductor is connected with the third conductor through the third transition conductor. The diameter of the third transition conductor is not equal to that of the third inner conductor or the third conductor. The fourth conversion part further comprises a fourth transition conductor. The fourth inner conductor is connected with the fourth conductor through the fourth transition conductor. The diameter of the fourth transition conductor is not equal to that of the fourth inner conductor or the fourth conductor.
[0018] Further, the height of the first conductor and the second conductor is D1, the distance from the first transition conductor to the first H face and the distance from the second transition conductor to the second H face is D2, the D2 is in [D1 / 2, D1), the height of the third conductor and the fourth conductor is D3, the distance from the third transition conductor to the first H face or the second H face and the distance from the fourth transition conductor to the first H face or the second H face is D4, the D4 is in [2D3 / 3, D3].
[0019] The utility model has the following advantages:
[0020] The first conductor and the second conductor are connected with the inner wall of the waveguide tube, so that the heat in the first conversion part, the second conversion part and the waveguide tube can be transmitted to the outer wall of the waveguide tube through the first conductor and the second conductor and then dissipated; in addition, the conversion part of the prior art adopts a stepped conversion structure, which is complex to manufacture and difficult to implement, the first conversion part and the second conversion part of the waveguide-coaxial power synthesis device are simple in structure and easy to manufacture; the waveguide-coaxial power synthesis device of the embodiment can easily realize two-in-one of electromagnetic wave power. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be briefly introduced. It should be understood that the following drawings only show some embodiments of the utility model, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor.
[0022] Figure 1 It is a front view of the waveguide-coaxial power synthesis device of the utility model;
[0023] Figure 2 It is Figure 1 It is a sectional view along A-A of the utility model;
[0024] Figure 3 It is Figure 2 It is a sectional view along B-B of the utility model;
[0025] Figure 4 It is a return loss simulation curve of the waveguide-coaxial power synthesis device of the utility model;
[0026] Figure 5 It is an insertion loss simulation curve of the waveguide-coaxial power synthesis device of the utility model;
[0027] In the figure: 1 - waveguide; 2 - first H-plane; 3 - second H-plane; 4 - first E-plane; 5 - second E-plane; 6 - closed end; 7 - first conductor; 8 - first coaxial; 9 - first outer conductor; 10 - first inner conductor; 11 - second conductor; 12 - second coaxial; 13 - second outer conductor; 14 - second inner conductor; 15 - third conductor; 16 - third coaxial; 17 - third outer conductor; 18 - third inner conductor; 19 - fourth conductor; 20 - fourth coaxial; 21 - fourth outer conductor; 22 - fourth inner conductor; 23 - first neutral plane; 24 - second neutral plane; 25 - first transition conductor; 26 - second transition conductor; 27 - third transition conductor; 28 - fourth transition conductor; 29 - first conversion portion; 30 - second conversion portion; 31 - third conversion portion; 32 - fourth conversion portion. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0029] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present application is usually placed, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance.
[0030] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.
[0031] In the present utility model, unless another definite provision and limitation, first feature is above or below second feature can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other feature between them. Moreover, first feature is above, above and above second feature includes that first feature is directly above and obliquely above second feature, or only indicates that first feature horizontal height is higher than second feature. First feature is below, below and below second feature includes that first feature is directly below and obliquely below second feature, or only indicates that first feature horizontal height is less than second feature.
[0032] See Figures 1 to 3 A waveguide-coaxial power combining device comprises:
[0033] A waveguide tube 1 comprises a first H plane 2, a second H plane 3, a first E plane 4, a second E plane 5 and a closed end 6;
[0034] A first conversion part 29 comprises a first conductor 7 and a first coaxial 8, the first conductor 7 is arranged close to the closed end 6, one end of the first conductor 7 is connected with the inner wall of the first H plane 2, the first coaxial 8 comprises a first outer conductor 9 and a first inner conductor 10, the first outer conductor 9 and the first inner conductor 10 are arranged coaxially without contact, the first outer conductor 9 is connected with the outer wall of the closed end 6, the first inner conductor 10 is connected with the first conductor 7 after passing through the closed end 6, and the first inner conductor 10 is not in contact with the closed end 6;
[0035] A second conversion part 30 comprises a second conductor 11 and a second coaxial 12, the second conductor 11 is arranged close to the closed end 6, one end of the second conductor 11 is connected with the inner wall of the second H plane 3, the second conductor 11 is coaxial with the first conductor 7, and the second conductor 11 is not in contact with the first conductor 7, the second coaxial 12 comprises a second outer conductor 13 and a second inner conductor 14, the second outer conductor 13 and the second inner conductor 14 are arranged coaxially without contact, the second outer conductor 13 is connected with the outer wall of the closed end 6, the second inner conductor 14 is connected with the second conductor 11 after passing through the closed end 6, and the second inner conductor 14 is not in contact with the closed end 6;
[0036] One end of the first conductor 7 is connected with the inner wall of the first H face 2, and one end of the second conductor 11 is connected with the inner wall of the second H face 3, so that the heat in the first conversion part 29, the second conversion part 30 and the cavity of the waveguide 1 can be transmitted to the outer wall of the waveguide 1 through the first conductor 7 and the second conductor 11 and then dissipated; in addition, the conversion parts in the prior art all adopt a stepped conversion structure, which is complex to manufacture and difficult to implement, and the first conversion part 29 and the second conversion part 30 of the waveguide-coaxial power synthesis device are simple in structure and easy to manufacture; the waveguide-coaxial power synthesis device of the embodiment can easily realize the two-in-one of electromagnetic wave power.
[0037] Further, it also includes:
[0038] The third conversion part 31 is arranged close to the closed end 6, the third conversion part 31 is arranged close to the first E face 4, the third conversion part 31 includes a third conductor 15 and a third coaxial 16, one end of the third conductor 15 is connected with the inner wall of the first H face 2 or the inner wall of the second H face 3, the third coaxial 16 includes a third outer conductor 17 and a third inner conductor 18, the third outer conductor 17 and the third inner conductor 18 are coaxially arranged without contact between them, the third outer conductor 17 is connected with the outer wall of the first E face 4, the third inner conductor 18 is connected with the third conductor 15 after passing through the first E face 4, and the third inner conductor 18 is not in contact with the first E face 4;
[0039] The fourth conversion part 32 is arranged close to the closed end 6, the fourth conversion part 32 is arranged close to the second E face 5, the fourth conversion part 32 includes a fourth conductor 19 and a fourth coaxial 20; when one end of the third conductor 15 is connected with the inner wall of the first H face 2, one end of the fourth conductor 19 is connected with the inner wall of the first H face 2, when one end of the third conductor 15 is connected with the inner wall of the second H face 3, one end of the fourth conductor 19 is connected with the inner wall of the second H face 3, that is, one end of the third conductor 15 and one end of the fourth conductor 19 are either both connected with the inner wall of the first H face 2 or both connected with the inner wall of the second H face 3; the fourth coaxial 20 includes a fourth outer conductor 21 and a fourth inner conductor 22, the fourth outer conductor 21 and the fourth inner conductor 22 are coaxially arranged without contact between them, the fourth outer conductor 21 is connected with the outer wall of the second E face 5, the fourth inner conductor 22 is connected with the fourth conductor 19 after passing through the second E face 5, and the fourth inner conductor 22 is not in contact with the second E face 5, the distance from the closed end 6 to the third conductor 15 is equal to the distance from the closed end 6 to the fourth conductor 19;
[0040] One end of the third conductor 15 is connected with the inner wall of the first H face 2 or the inner wall of the second H face 3, and one end of the fourth conductor 19 is connected with the inner wall of the first H face 2 or the inner wall of the second H face 3, so that the heat in the third conversion part 31, the fourth conversion part 32 and the cavity of the waveguide 1 can be transmitted to the outer wall of the waveguide 1 through the third conductor 15 and the fourth conductor 19 and then dissipated; in addition, the third conversion part 31 and the fourth conversion part 32 of the waveguide-coaxial power combining device have simple structure and are easy to manufacture; at the same time, the arrangement of the third conversion part 31 and the fourth conversion part 32 can also increase the number of branch paths and thus increase the combined power; the waveguide-coaxial power combining device of the embodiment can easily realize four-in-one of electromagnetic wave power.
[0041] Further, in order to improve the consistency of the amplitudes and phases of the branch paths, the first conversion part 29 and the second conversion part 30 are symmetrically arranged about the first neutral plane 23, the distance from the first neutral plane 23 to the first H face 2 is equal to the distance from the first neutral plane 23 to the second H face 3, the third conversion part 31 and the fourth conversion part 32 are symmetrically arranged about the second neutral plane 24, and the distance from the second neutral plane 24 to the first E face 4 is equal to the distance from the second neutral plane 24 to the second E face 5.
[0042] Further, in order to reduce reflection and improve conversion efficiency, the first conversion part 29 and the second conversion part 30 are both arranged centrally, that is, the distance from the first conversion part 29 to the first E face 4 is equal to the distance from the first conversion part 29 to the second E face 5, and the distance from the second conversion part 30 to the first E face 4 is equal to the distance from the second conversion part 30 to the second E face 5.
[0043] Further, in order to adjust reflection and achieve better matching, the first conversion part 29 further comprises a first transition conductor 25, the first inner conductor 10 is connected with the first conductor 7 through the first transition conductor 25, the diameter of the first transition conductor 25 is not equal to that of the first inner conductor 10 or the first conductor 7, and the first transition conductor 25 is coaxial with the first inner conductor 10; the second conversion part 30 further comprises a second transition conductor 26, the second inner conductor 14 is connected with the second conductor 11 through the second transition conductor 26, the diameter of the second transition conductor 26 is not equal to that of the second inner conductor 14 or the second conductor 11, and the second transition conductor 26 is coaxial with the second inner conductor 14.
[0044] Further, in order to further adjust the reflection and achieve better matching, the third conversion part 31 further comprises a third transition conductor 27, the third inner conductor 18 is connected with the third conductor 15 through the third transition conductor 27, the third transition conductor 27 is coaxial with the third inner conductor 18, and the third transition conductor 27 is not equal in diameter to the third inner conductor 18 and the third conductor 15; the fourth conversion part 32 further comprises a fourth transition conductor 28, the fourth inner conductor 22 is connected with the fourth conductor 19 through the fourth transition conductor 28, the fourth transition conductor 28 is coaxial with the fourth inner conductor 22, and the fourth transition conductor 28 is not equal in diameter to the fourth inner conductor 22 and the fourth conductor 19.
[0045] Further, in order to reduce the reflection and improve the transmission performance, the height of the first conductor 7 is D1, the height of the second conductor 11 is also D1, the distance from the first transition conductor 25 to the first H surface 2 is D2, the distance from the second transition conductor 26 to the second H surface 3 is also D2, D2 is in the range of [D1 / 2, D1), the height of the third conductor 15 is D3, and the height of the fourth conductor 19 is also D3; when one end of the third conductor 15 and one end of the fourth conductor 19 are connected with the inner wall of the first H surface 2, the distance from the third transition conductor 27 to the first H surface 2 and the distance from the fourth transition conductor 28 to the first H surface 2 are both D4, D4 is in the range of [2D3 / 3, D3), and when one end of the third conductor 15 and one end of the fourth conductor 19 are connected with the inner wall of the second H surface 3, the distance from the third transition conductor 27 to the second H surface 3 and the distance from the fourth transition conductor 28 to the second H surface 3 are also both D4, D4 is in the range of [2D3 / 3, D3), that is, the distance from the third transition conductor 27 to the first H surface 2 or the second H surface 3 is D4, the distance from the fourth transition conductor 28 to the first H surface 2 or the second H surface 3 is also D4, and D4 is in the range of [2D3 / 3, D3).
[0046] The transmission performance of the waveguide-coaxial power synthesis device is good, and the return loss simulation curve is shown in Figure 4 , and the insertion loss simulation curve is shown in Figure 5 .
[0047] The preferred embodiments of the utility model are described above only, and are not used for limiting the utility model, and the utility model can have various changes and changes for the person skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A waveguide-coaxial power combining device, characterized by, The utility model relates to a waveguide (1), the waveguide (1) includes first H face (2), second H face (3), first E face (4), second E face (5) and closed end (6), first conversion part (29) includes first conductor (7) and first coaxial (8), first conductor (7) is close to closed end (6) setting, first conductor (7) one end is connected with the inner wall of first H face (2), first coaxial (8) includes first outer conductor (9) and first inner conductor (10), first outer conductor (9) is connected with closed end (6), first inner conductor (10) is connected with first conductor (7) after no contact through closed end (6), second conversion part (30) includes second conductor (11) and second coaxial (12), second conductor (11) is close to closed end (6) setting, second conductor (11) one end is connected with the inner wall of second H face (3), second conductor (11) is coaxial with first conductor (7) and is arranged without contact, second coaxial (12) includes second outer conductor (13) and second inner conductor (14), second outer conductor (13) is connected with closed end (6), second inner conductor (14) is connected with second conductor (11) after no contact through closed end (6). Further comprising: Third conversion part (31) is close to closed end (6) and first E face (4) setting, third conversion part (31) includes third conductor (15) and third coaxial (16), third conductor (15) one end is connected with the inner wall of first H face (2) or the inner wall of second H face (3), third coaxial (16) includes third outer conductor (17) and third inner conductor (18), third outer conductor (17) is connected with first E face (4), third inner conductor (18) is connected with third conductor (15) after no contact through first E face (4), Fourth conversion part (32) is close to closed end (6) and second E face (5) setting, fourth conversion part (32) includes fourth conductor (19) and fourth coaxial (20), when the one end of third conductor (15) is connected with the inner wall of first H face (2), the one end of fourth conductor (19) is connected with the inner wall of first H face (2), when the one end of third conductor (15) is connected with the inner wall of second H face (3), the one end of fourth conductor (19) is connected with the inner wall of second H face (3), fourth coaxial (20) includes fourth outer conductor (21) and fourth inner conductor (22), fourth outer conductor (21) is connected with second E face (5), fourth inner conductor (22) is connected with fourth conductor (19) after no contact through second E face (5).
2. The waveguide-coaxial power combining device of claim 1, wherein, 3. The waveguide-coaxial power combining device of claim 2, wherein: The first conversion part (29) and the second conversion part (30) are symmetrically arranged about the first neutral plane (23), the distance from the first neutral plane (23) to the first H plane (2) is equal to the distance to the second H plane (3), the third conversion part (31) and the fourth conversion part (32) are symmetrically arranged about the second neutral plane (24), the distance from the second neutral plane (24) to the first E plane (4) is equal to the distance to the second E plane (5).
4. The waveguide-coaxial power combining device of any of claims 1 to 3, wherein: The first conversion part (29) and the second conversion part (30) are centrally arranged.
5. The waveguide-coaxial power combining device of claim 4, wherein: The first conversion part (29) further comprises a first transition conductor (25), the first inner conductor (10) is connected with the first conductor (7) through the first transition conductor (25), the diameter of the first transition conductor (25) is not equal to that of the first inner conductor (10) and the first conductor (7), the second conversion part (30) further comprises a second transition conductor (26), the second inner conductor (14) is connected with the second conductor (11) through the second transition conductor (26), the diameter of the second transition conductor (26) is not equal to that of the second inner conductor (14) and the second conductor (11).
6. The waveguide-coaxial power combining device of claim 5, wherein: The third conversion part (31) further comprises a third transition conductor (27), the third inner conductor (18) is connected with the third conductor (15) through the third transition conductor (27), the diameter of the third transition conductor (27) is not equal to that of the third inner conductor (18) and the third conductor (15), the fourth conversion part (32) further comprises a fourth transition conductor (28), the fourth inner conductor (22) is connected with the fourth conductor (19) through the fourth transition conductor (28), the diameter of the fourth transition conductor (28) is not equal to that of the fourth inner conductor (22) and the fourth conductor (19).
7. The waveguide-coaxial power combining device of claim 6, wherein: The height of the first conductor (7) and the second conductor (11) is D1, the distance from the first transition conductor (25) to the first H plane (2) and the distance from the second transition conductor (26) to the second H plane (3) are both D2, D2∈[D1 / 2, D1), the height of the third conductor (15) and the fourth conductor (19) is D3, the distance from the third transition conductor (27) to the first H plane (2) or the second H plane (3) and the distance from the fourth transition conductor (28) to the first H plane (2) or the second H plane (3) are both D4, D4∈[2D3 / 3, D3].