CN204333204U - Directional coupler - Google Patents
Directional coupler Download PDFInfo
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- CN204333204U CN204333204U CN201520003191.7U CN201520003191U CN204333204U CN 204333204 U CN204333204 U CN 204333204U CN 201520003191 U CN201520003191 U CN 201520003191U CN 204333204 U CN204333204 U CN 204333204U
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- outer conductor
- inner wire
- coupling
- conductor housing
- matched junction
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Abstract
The utility model is that it comprises about a kind of directional coupler: N connector, matched junction inner wire, coupling plate, outer conductor housing, coupling inner wire and coaxial outer conductor joint; Wherein, at the two ends of outer conductor shell body, coaxial outer conductor joint is installed respectively; Coupling inner wire is installed in outer conductor housing, and its two ends are stretched in coaxial outer conductor joint by outer conductor housing respectively; Two N connectors are installed on outer conductor housing; In two N connectors, matched junction inner wire is installed respectively; Two matched junction inner wires stretch in outer conductor housing by N connector respectively; Coupling plate is connected and installed in outer conductor housing with two matched junction inner wires respectively by two ends, and coupling plate is parallel with coupling inner wire, and the length of coupling plate is 1/4 of TV decimeter wave all band center frequency wavelength.The utility model can ensure that the fluctuation of coupling amount is minimum in TV decimeter wave all band, and can meet the larger requirement of Coupled Signal Power.
Description
Technical field
The utility model relates to a kind of directional coupler being applied to field of broadcast televisions, particularly relates to one and coupling amount fluctuation in TV decimeter wave wave band full bandwidth can be made little, and the directional coupler that coupled power is larger.
Background technology
Directional coupler is the directive power divider of a kind of tool, coming, being mainly used in power detection for the radiofrequency signal transmitted in main radio-frequency transmission line being coupled out a part.The form that the directional coupler that current field of broadcast televisions is commonly used mainly adopts coupling measurement head to install.As shown in Figure 1, it forms primarily of feedback pipe outer conductor 1, feedback pipe inner wire 2, coupling measurement head 3 and support column 4.Wherein, feedback pipe inner wire 2 is installed in feedback pipe outer conductor 1 by support column 4, transmitting radio frequency signal.Coupling measurement head 3 is installed on feedback pipe outer conductor 1, is coupled out one of radiofrequency signal.As shown in Figure 2, coupling measurement head 3 forms primarily of N connector 5, joint inner wire 6, coupling piece 7 and resistance 8.Wherein, coupling piece 7 contact resistance 8 and joint inner wire 6, and parallel with feedback pipe inner wire 2.Joint inner wire 6 stretches in N connector 5, exports coupled signal.This directional coupling structure due to the size of coupling piece 7 short and small, in TV decimeter wave wave band full bandwidth, coupling amount fluctuation ratio is comparatively large, and cannot meet the larger requirement of Coupled Signal Power.
As can be seen here, above-mentioned existing directional coupler with in use in structure, obviously still has inconvenience and defect, and is urgently further improved.
Summary of the invention
The purpose of this utility model is, overcome the defect that existing directional coupler exists, and a kind of directional coupler of new structure is provided, technical problem to be solved is that it is by being set to 1/4 of TV decimeter wave all band center frequency wavelength by the length of coupling plate, can ensure that the fluctuation of coupling amount is minimum in TV decimeter wave all band, and meet the requirement that Coupled Signal Power is larger, be very suitable for practicality.
The purpose of this utility model and solve its technical problem be adopt following technical scheme realize.According to a kind of directional coupler that the utility model proposes, it comprises: N connector, matched junction inner wire, coupling plate, outer conductor housing, coupling inner wire and coaxial outer conductor joint; Wherein, at the two ends of described outer conductor housing, described coaxial outer conductor joint is installed respectively; Described coupling inner wire is installed in described outer conductor housing; And the two ends of described coupling inner wire are stretched in described coaxial outer conductor joint by described outer conductor housing respectively; Two described N connectors are installed on described outer conductor housing; In two described N connectors, described matched junction inner wire is installed respectively; Two described matched junction inner wires stretch in described outer conductor housing by described N connector respectively; By two ends, described matched junction inner wire is connected and installed in described outer conductor housing described coupling plate with two respectively, and described coupling plate is parallel with described coupling inner wire, the length of described coupling plate is 1/4 of TV decimeter wave all band center frequency wavelength.
The purpose of this utility model and solve its technical problem and can also be further achieved by the following technical measures.
Aforesaid directional coupler, wherein said outer conductor housing comprises: cavity outer conductor and cover plate; Described cavity outer conductor and described cover plate form an accommodation space; Described coaxial outer conductor joint is mounted in the two ends of described cavity outer conductor; Described coupling inner wire is installed in described accommodation space; And the two ends of described coupling inner wire stretch in described coaxial outer conductor joint by described accommodation space respectively; Two described N connectors are installed on described cover plate; Two described matched junction inner wires stretch in described accommodation space by described N connector respectively; Described coupling plate is that described matched junction inner wire is connected and installed in described accommodation space with two respectively by two ends.
Aforesaid directional coupler, wherein said coupling inner wire is installed in described outer conductor housing by the supporting insulator be installed on respectively in two described coaxial outer conductor joints; Described matched junction inner wire is installed in described N connector by the support insulator be installed in described N connector.
The utility model compared with prior art has obvious advantage and beneficial effect.By technique scheme, the utility model directional coupler at least has following advantages and beneficial effect: directional coupler of the present utility model can ensure that the fluctuation of coupling amount is minimum in TV decimeter wave all band, and the requirement that Coupled Signal Power is larger can be met, the power of its coupled signal can reach tens watts, simultaneously by two N connectors respectively installation load can realize the test to incident and reflected signal.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to technological means of the present utility model can be better understood, and can be implemented according to the content of specification, and can become apparent to allow above and other object of the present utility model, feature and advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is the structural representation of the directional coupler of existing employing coupling measurement head installation form.
Fig. 2 is the structural representation of coupling measurement head in Fig. 1.
Fig. 3 is the cutaway view of a preferred embodiment of the utility model directional coupler.
1: feedback pipe outer conductor 2: feedback pipe inner wire
3: coupling measurement head 4: support column
5:N type joint 6: joint inner wire
7: coupling piece 8: resistance
9: coaxial outer conductor joint 10: coupling inner wire
11: coupling plate 12: cavity outer conductor
13: matched junction inner wire 14: supporting insulator
15: cover plate
Embodiment
For further setting forth the utility model for the technological means reaching predetermined goal of the invention and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to according to its embodiment of directional coupler, structure, feature and the effect thereof that the utility model proposes, be described in detail as follows.
Referring to shown in Fig. 3, is the cutaway view of a preferred embodiment of the utility model directional coupler.Directional coupler of the present utility model forms primarily of N connector 5, matched junction inner wire 13, coupling plate 11, outer conductor housing, coupling inner wire 10 and coaxial outer conductor joint 9.Wherein, at the two ends of outer conductor shell body, coaxial outer conductor joint 9 is installed respectively.Coupling inner wire 10 is installed in outer conductor housing, and the two ends of mating inner wire 10 are stretched in coaxial outer conductor joint 9 by outer conductor housing respectively.Two N connectors 5 are installed on outer conductor housing.Matched junction inner wire 13, two matched junction inner wires 13 are installed respectively in two N connectors 5 stretched in outer conductor housing by N connector 5 respectively.Coupling plate 11 is connected and installed in outer conductor housing with two matched junction inner wires 13 respectively by two ends, and coupling plate 11 is parallel with coupling inner wire 10, and the length of coupling plate 11 is 1/4 of TV decimeter wave all band center frequency wavelength.
As shown in Figure 3, outer conductor housing of the present utility model forms primarily of cavity outer conductor 12 and cover plate 15.Cavity outer conductor 12 and cover plate 15 form an accommodation space.Coaxial outer conductor joint 9 is mounted in the two ends of cavity outer conductor 12.Coupling inner wire 10 is installed in this accommodation space, and the two ends of mating inner wire 10 are stretched in coaxial outer conductor joint 9 by this accommodation space respectively.Two N connectors 5 are installed on cover plate 15.Two matched junction inner wires 13 are stretched in this accommodation space by N connector 5 respectively.Coupling plate 11 is connected and installed in this accommodation space with two matched junction inner wires 13 respectively by two ends.
Wherein, coupling inner wire 10 of the present utility model is installed in outer conductor housing by the supporting insulator 14 be installed on respectively in two coaxial outer conductor joints 9.Matched junction inner wire 13 is installed in N connector 5 by the support insulator 14 be installed in N connector 5.
The utility model is the coupling plate 11 of 1/4 of TV decimeter wave all band center frequency wavelength owing to adopting length, can ensure that the fluctuation of coupling amount is minimum in TV decimeter wave all band, the power of its coupled signal can reach tens watts, meet the requirement of the power of larger coupled signal, and by two N connectors 5 respectively installation load can realize the test to incident or reflected signal.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, although the utility model discloses as above with preferred embodiment, but and be not used to limit the utility model, any those skilled in the art are not departing within the scope of technical solutions of the utility model, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solutions of the utility model, according to any simple modification that technical spirit of the present utility model is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (3)
1. a directional coupler, is characterized in that it comprises: N connector (5), matched junction inner wire (13), coupling plate (11), outer conductor housing, coupling inner wire (10) and coaxial outer conductor joint (9);
Wherein, at the two ends of described outer conductor housing, described coaxial outer conductor joint (9) is installed respectively; Described coupling inner wire (10) is installed in described outer conductor housing; And the two ends of described coupling inner wire (10) are stretched in described coaxial outer conductor joint (9) by described outer conductor housing respectively;
Two described N connectors (5) are installed on described outer conductor housing; In two described N connectors (5), described matched junction inner wire (13) is installed respectively; Two described matched junction inner wires (13) are stretched in described outer conductor housing by described N connector (5) respectively; By two ends, described matched junction inner wire (13) is connected and installed in described outer conductor housing described coupling plate (11) with two respectively, and described coupling plate (11) is parallel with described coupling inner wire (10), the length of described coupling plate (11) is 1/4 of TV decimeter wave all band center frequency wavelength.
2. directional coupler according to claim 1, is characterized in that wherein said outer conductor housing comprises: cavity outer conductor (12) and cover plate (15);
Described cavity outer conductor (12) and described cover plate (15) form an accommodation space; Described coaxial outer conductor joint (9) is mounted in the two ends of described cavity outer conductor (12); Described coupling inner wire (10) is installed in described accommodation space; And the two ends of described coupling inner wire (10) stretch in described coaxial outer conductor joint (9) by described accommodation space respectively;
Two described N connectors (5) are installed on described cover plate (15); Two described matched junction inner wires (13) stretch in described accommodation space by described N connector (5) respectively; Described coupling plate (11) is that described matched junction inner wire (13) is connected and installed in described accommodation space with two respectively by two ends.
3. directional coupler according to claim 1 and 2, is characterized in that wherein said coupling inner wire (10) is installed in described outer conductor housing by the supporting insulator (14) be installed on respectively in two described coaxial outer conductor joints (9); Described matched junction inner wire (13) is installed in described N connector (5) by the support insulator (14) be installed in described N connector (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520003191.7U CN204333204U (en) | 2015-01-04 | 2015-01-04 | Directional coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520003191.7U CN204333204U (en) | 2015-01-04 | 2015-01-04 | Directional coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204333204U true CN204333204U (en) | 2015-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520003191.7U Active CN204333204U (en) | 2015-01-04 | 2015-01-04 | Directional coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204333204U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105898975A (en) * | 2016-06-12 | 2016-08-24 | 浙江大学 | High-power microwave plasma resonant cavity |
| CN106532218A (en) * | 2016-11-15 | 2017-03-22 | 中国电子科技集团公司第四十研究所 | High-power rectangular waveguide bidirectional coupler |
-
2015
- 2015-01-04 CN CN201520003191.7U patent/CN204333204U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105898975A (en) * | 2016-06-12 | 2016-08-24 | 浙江大学 | High-power microwave plasma resonant cavity |
| CN105898975B (en) * | 2016-06-12 | 2018-07-17 | 浙江大学 | A kind of HIGH-POWERED MICROWAVES plasma resonant |
| CN106532218A (en) * | 2016-11-15 | 2017-03-22 | 中国电子科技集团公司第四十研究所 | High-power rectangular waveguide bidirectional coupler |
| CN106532218B (en) * | 2016-11-15 | 2018-10-19 | 中国电子科技集团公司第四十一研究所 | A kind of high-power rectangular waveguide dual directional coupler |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |