CN201812917U - Air stripline bridge - Google Patents
Air stripline bridge Download PDFInfo
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- CN201812917U CN201812917U CN2010205521892U CN201020552189U CN201812917U CN 201812917 U CN201812917 U CN 201812917U CN 2010205521892 U CN2010205521892 U CN 2010205521892U CN 201020552189 U CN201020552189 U CN 201020552189U CN 201812917 U CN201812917 U CN 201812917U
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- cavity
- air
- electric bridge
- line electric
- strip line
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Abstract
The utility model discloses an air stripline bridge, which comprises a cavity and a cover plate matched with the cavity. Two sides of the cavity are respectively provided with two ports; two metal conductors forming a coupled structure are correspondingly arranged in the cavity; each metal conductor is divided into three sections, and each section has 1/4 wavelength; two sections on the two sides of the metal conductor are symmetrical about the middle section and have the same size so as to form two weak coupled areas; middle sections of the two metal conductors protrude in opposite directions so as to form a strong coupled area; and two ends of the metal conductors are respectively connected with the two ports on corresponding sides of the metal conductors so as to form the air stripline bridge taking air as an isolating medium. The air stripline bridge has the operating frequency of 700 to 2,700MHz, realizes better combination and allocation of energy through the combination of strong coupling and weak coupling, takes the air as the medium, has good passive inter-modulation index, large power capacity and wide frequency range, and is easy to process and suitable for batch production.
Description
Technical field
The utility model relates to the microwave broadband reception technique, particularly a kind of broadband 3dB strip line electric bridge, specifically a kind of air strip line electric bridge.
Background technology
Along with the development of modern wireless communication systems, passive device is environment friendly and pollution-free with it, the advantage of low-power consumption and high reliability and being widely used, and the 3db electric bridge is very common device in passive system, be usually used in signal to close road, shunt and power synthetic.In microwave broadband receives, adopt the strip line electric bridge as coupling device usually, the strip line electric bridge has advantages such as the loss of insertion is low, good directionality.Strip line electric bridge commonly used at present adopts dielectric isolation more.But because the loss of medium is higher, so medium strip line electric bridge exists that power capacity is low, assembling and defectives such as debug difficulties, cost height and intermodulation index error.
Summary of the invention
Technical problem to be solved in the utility model is at above-mentioned prior art present situation, provides frequency range to reach 700-2700MHz, a kind of air strip line electric bridge that the passive intermodulation index is good, power capacity is processed and produced in batches greatly and easily.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of air strip line electric bridge, comprise cavity and the cover plate that matches with cavity, described cavity both sides respectively are equipped with two ports, the corresponding metallic conductors that are provided with two composition coupled structures in its cavity, and every strip metal conductor all divides three sections, and every section is 1/4 wavelength, the both sides section of described metallic conductor is symmetrical and measure-alike with respect to interlude, constitute two weak coupling districts, the interlude of described two metallic conductors is outstanding in opposite directions, constitutes a close coupling district; Each is connected the two ends of described metallic conductor with two ports of its respective side, and constituting with the air is the air strip line electric bridge of spacer medium.
For optimizing technique scheme, the concrete measure of taking also comprises:
Two above-mentioned strip metal conductors adopt the PTFE medium bar to fit in the cavity admittedly.
The cross section of above-mentioned metallic conductor is a rectangle.
Be provided with the following deep trouth that adds of downward extension in the above-mentioned cavity corresponding to close coupling district part.
Be provided with corresponding to close coupling district part on the above-mentioned cover plate and add deep trouth on upwardly extending.
The above-mentioned cavity back side is shaped on the heat radiation wing that is used to quicken heat exchange.
Compared with prior art, the corresponding metallic conductors that are provided with two composition coupled structures in the cavity of the present utility model, and every strip metal conductor all divides three sections, and every section is 1/4 wavelength, the both sides section of metallic conductor is symmetrical and measure-alike with respect to interlude, constitute two weak coupling districts, the interlude of two metallic conductors is outstanding in opposite directions, constitutes a close coupling district; Each is connected the two ends of metallic conductor with two ports of its respective side, and constituting with the air is the air strip line electric bridge of spacer medium.
The utility model realizes that by outstanding in opposite directions interlude is set close coupling combines with weak coupling, and electromagnetic wave is realized the better combination and the distribution of energy by coupling; Upper and lower being shaped in interlude close coupling district adds deep trouth, increased the space width of interlude, has better isolation, the employing air is a medium, the passive intermodulation index is good, power capacity big, wide frequency range, its frequency range is at 700-2700MHz, and have that loss is low, good directionality and processing easily and characteristics such as batch process.
Description of drawings
Fig. 1 is the perspective view of the utility model embodiment;
Fig. 2 is the upward view of Fig. 1 cover plate;
Fig. 3 is the structural representation of cavity among Fig. 1;
Fig. 4 is the right view of Fig. 3;
Fig. 5 is the upward view of Fig. 3.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is to Figure 5 shows that structural representation of the present utility model.
Reference numeral wherein is: metallic conductor 1, interlude 1a, both sides section 1b, cavity 2, down add deep trouth 2a, port 3, cover plate 4, on add deep trouth 4a, heat radiation wing 5, PTFE medium bar 6.
Embodiment one, extremely shown in Figure 5 as Fig. 1, a kind of air strip line electric bridge of the present utility model, comprise cavity 2 and the cover plate 4 that matches with cavity 2, described cavity 2 both sides respectively are equipped with two ports 3, the corresponding metallic conductors 1 that are provided with two composition coupled structures in its cavity 2, and every strip metal conductor 1 all divides three sections, and every section is 1/4 wavelength, the both sides section 1b of described metallic conductor 1 is symmetrical and measure-alike with respect to interlude 1a, constitute two weak coupling districts, the interlude 1a of described two metallic conductors 1 is outstanding in opposite directions, constitute a close coupling district, each is connected the two ends of described metallic conductor 1 with two ports 3 of its respective side, and constituting with the air is the air strip line electric bridge of spacer medium.The utility model is according to Chebyshev's principle design, and each metallic conductor is divided into three sections, and interlude 1a is outstanding in opposite directions, close together, this part realizes close coupling, and section 1b distance in both sides is far away, realizes weak coupling, each section is isometric, is respectively 1/4 wavelength, and the junction is that the oblique angle connects.Combine with weak coupling by close coupling, realized the combination preferably and the distribution of energy; The employing air is a medium, and the passive intermodulation index is good, power capacity big, wide frequency range, and its frequency range is at 700-2700MHz.
Embodiment two, as Fig. 1, shown in Figure 3, be equipped with two relative metallic conductors with rectangular cross section 1 in the cavity 2 of the present utility model, two strip metal conductors 1 are formed coupled structure, and two strip metal conductors 1 adopt PTFE medium bar 6 to fit over admittedly in the cavity 2, two strip metal conductors 1 are according to Chebyshev's principle design, be divided into three sections, every section 1/4 wavelength, constitute three coupled structures, its both sides section 1b is symmetrical and measure-alike with respect to interlude 1a, two strip metal conductors, 1 relative distance is far away, constitutes the weak coupling district on both sides, and interlude 1a is because outstanding in opposite directions, close together, close coupling district in the middle of constituting, cavity 2 is provided with four ports 3, and symmetry is fitted in the both sides of cavity 2, each is connected the two ends of two strip metal conductors 1 with two ports 3 of its respective side, and constituting with the air is the air strip line electric bridge of spacer medium.Cavity 2 is equipped with cover plate 4.Two ends and the both sides section 1b of the utility model conductor interlude 1a have an angle, the nearer formation close coupling that interlude 1a leans on, the bigger formation weak coupling of both sides section 1b distance of both sides symmetry, this electric bridge is owing to use three joint air strip lines realizations, so the passive intermodulation index is good, power capacity big, wide frequency range, and cost is low and processing and producing in batches easily, can overcome effectively that power loss height, capacity that medium strip line electric bridge deposits are low, assembling and debug difficulties and defect of high cost.Present embodiment fits over metallic conductor in the cavity 2 admittedly except that employing PTFE medium bar 6 and conductor is outside the rectangular cross section, and other is all identical with embodiment one.
Embodiment three, among the embodiment, the corresponding both sides of cavity 2 are fitted with two ports 3 respectively, and the corresponding metallic conductors 1 that are equipped with two composition coupled structures in the cavity 2, metallic conductor 1 cross section is rectangular, each metallic conductor 1 is divided into three sections, each section is respectively 1/4 wavelength, interlude 1a is outstanding in opposite directions, close together constitutes the close coupling district, and its both sides section 1b is symmetrical and measure-alike with respect to interlude 1a, section 1b distance in both sides is bigger, constitute the weak coupling district, each is connected the two ends of two strip metal conductors 1 with two ports 3 of its respective side, and two strip metal conductors 1 fit in the cavity 2 admittedly by PTFE medium bar 6, be shaped on the following of downward extension corresponding to close coupling district part in the cavity 2 and add deep trouth 2a, and the cavity back side is shaped on the heat radiation wing 5 that is used to quicken heat exchange.Cavity 2 of the present utility model is furnished with cover plate 4 mutually, and is provided with corresponding to close coupling district part on the cover plate 4 and adds deep trouth 4a on upwardly extending.Upper and lower being shaped in interlude close coupling district adds deep trouth, increased the space width of interlude, has better isolation, is provided with heat radiation wing 5 and can guarantees Homogeneouslly-radiating, makes properties of product more stable, further increased the adaptability of product.Present embodiment adds deep trouth and the heat radiation wing except that being shaped on, and other is all identical with embodiment two.
A kind of air strip line electric bridge of the present utility model, its operating frequency is 700-2700MHz, two strip metal conductors all divide three sections, and every section be 1/4 wavelength, combines with weak coupling by close coupling, realizes the combination and the distribution of electromagnetic wave energy; Using three joint air strip lines, is that medium has remarkable advantages with the air, and its major advantage has:
1, bandwidth, stable performance, it is strong to do interference performance, and operating frequency reaches 700-2700MHz.
2, adopting air is medium, and the passive intermodulation index is good, power capacity is big.
3, close coupling combines with weak coupling, has realized that energy makes up preferably and distributes.
4, low, assembling of power loss and debugging are easily.
5, perfect heat-dissipating is suitable for working long hours.
6, low cost of manufacture, process easily, be suitable for to produce in enormous quantities.
Most preferred embodiment of the present utility model is illustrated, and various variations or the remodeling made by those of ordinary skills can not break away from scope of the present utility model.
Claims (6)
1. air strip line electric bridge, comprise cavity (2) and the cover plate (4) that matches with cavity (2), described cavity (2) both sides respectively are equipped with two ports (3), it is characterized in that: the corresponding metallic conductors (1) that are provided with two composition coupled structures in the described cavity (2), and every strip metal conductor (1) all divides three sections, and every section is 1/4 wavelength, the both sides section (1b) of described metallic conductor (1) is symmetrical and measure-alike with respect to interlude (1a), constitute two weak coupling districts, the interlude (1a) of described two metallic conductors (1) is outstanding in opposite directions, constitute a close coupling district, each is connected the two ends of described metallic conductor (1) with two ports (3) of its respective side, and constituting with the air is the air strip line electric bridge of spacer medium.
2. a kind of air strip line electric bridge according to claim 1 is characterized in that: described two strip metal conductors (1) adopt PTFE medium bar (6) to fit over admittedly in the cavity (2).
3. a kind of air strip line electric bridge according to claim 2, it is characterized in that: the cross section of described metallic conductor (1) is a rectangle.
4. a kind of air strip line electric bridge according to claim 3 is characterized in that: the following deep trouth (2a) that adds that is provided with downward extension in the described cavity (2) corresponding to close coupling district part.
5. a kind of air strip line electric bridge according to claim 4 is characterized in that: described cover plate (4) is gone up to be provided with corresponding to close coupling portion district's part and is added deep trouth (4a) on upwardly extending.
6. a kind of air strip line electric bridge according to claim 5 is characterized in that: the described cavity back side is shaped on the heat radiation wing (5) that is used to quicken heat exchange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205521892U CN201812917U (en) | 2010-09-30 | 2010-09-30 | Air stripline bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205521892U CN201812917U (en) | 2010-09-30 | 2010-09-30 | Air stripline bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201812917U true CN201812917U (en) | 2011-04-27 |
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ID=43895855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205521892U Expired - Fee Related CN201812917U (en) | 2010-09-30 | 2010-09-30 | Air stripline bridge |
Country Status (1)
| Country | Link |
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| CN (1) | CN201812917U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950840A (en) * | 2010-09-30 | 2011-01-19 | 浙江纺织服装职业技术学院 | Air strip line bridge |
| CN107689475A (en) * | 2017-08-23 | 2018-02-13 | 中国电子科技集团公司第三十八研究所 | A kind of micro coaxle ultra wide band coupler |
-
2010
- 2010-09-30 CN CN2010205521892U patent/CN201812917U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950840A (en) * | 2010-09-30 | 2011-01-19 | 浙江纺织服装职业技术学院 | Air strip line bridge |
| CN107689475A (en) * | 2017-08-23 | 2018-02-13 | 中国电子科技集团公司第三十八研究所 | A kind of micro coaxle ultra wide band coupler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20130930 |