CN2809911Y - Substrate integrated waveguide (SIW) 180-degree three-decibel directional coupler - Google Patents
Substrate integrated waveguide (SIW) 180-degree three-decibel directional coupler Download PDFInfo
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- CN2809911Y CN2809911Y CN 200520073642 CN200520073642U CN2809911Y CN 2809911 Y CN2809911 Y CN 2809911Y CN 200520073642 CN200520073642 CN 200520073642 CN 200520073642 U CN200520073642 U CN 200520073642U CN 2809911 Y CN2809911 Y CN 2809911Y
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Abstract
The utility model discloses a substrate integrated waveguide 180 DEG three-decibel directional coupler of millimeter waves and a microwave device, which comprises a dielectric substrate which is provided with metal patches on both sides; the dielectric substrate is provided with two substrate integrated waveguides; one of the substrate integrated waveguides is respectively provided with an input terminal and an output terminal; the other substrate integrated waveguide is respectively provided with an isolating terminal and a coupling terminal; the two substrate integrated waveguides are formed from three rows of parallel plated through holes; the interiors of the substrate integrated waveguides are respectively provided with H plane insertion pieces which are formed from lined plated through holes which are in parallel with each other; a periodical slow-wave structure is arranged in a region of the substrate integrated waveguides close to the output terminal and is formed from ranked plated through holes which are arranged on both inner walls of the substrate integrated waveguides close to the output terminal part. The utility model has the advantages of small size, low cost, easy integration, favorable performance, etc.
Description
Technical field
The utility model relates to a kind of millimeter wave and microwave device, relates in particular to a kind of chip-integrated waveguide 180-degree 3-db oriented coupler.
Background technology
In existing millimeter wave and microwave device, can realize that the directional coupler volume of 180 degree phase difference outputs is bigger than normal, difficulty of processing and cost are higher, are difficult to be fully integratible in the existing circuit go.Meanwhile, the structure that can realize 180 directional couple functions has such as Microstrip Loop structure, E ground roll guide structure or multilayer waveguide structure that loss is bigger than normal, hardware requirement on machining accuracy height, volume bigger than normal and can't large-scale production etc. the deficiency of every aspect, therefore design a kind of 180 degree couplers based on single-layer printed circuit plate (PCB) technology and substrate integration wave-guide (SIW) structure, make it to have that cost is low, performance good, integrated level is high and be easy to advantages such as large-scale production, thereby have great importance.
Summary of the invention
The utility model provides that a kind of volume is little, cost is low, easy of integration, chip-integrated waveguide 180-degree 3-db oriented coupler that performance is good.
The utility model adopts following technical scheme:
A kind of chip-integrated waveguide 180-degree 3-db oriented coupler that relates to millimeter wave and microwave device, comprise the two-sided dielectric substrate that is provided with metal patch, on dielectric substrate, be provided with 2 substrate integration wave-guides, the two ends of a substrate integration wave-guide are respectively equipped with input and output therein, be respectively equipped with isolation end and coupled end at the two ends of another substrate integration wave-guide, above-mentioned 2 substrate integration wave-guides are made of the parallel plated-through hole of 3 row, on the plated-through hole of embarking on journey of centre, be provided with coupling slot, in substrate integration wave-guide, be respectively equipped with H plane abaculus, H plane abaculus is relative with coupling slot with embark on journey plated-through hole and the H plane abaculus that are in close proximity to both sides respectively, above-mentioned H plane abaculus is made of the plated-through hole of embarking on journey that is parallel to each other, be provided with the cyclic slow wave structure near the zone in the substrate integration wave-guide of output, this cyclic slow wave structure constitutes near the one-tenth row plated-through hole on two inwalls of outlet end part by being located at substrate integration wave-guide respectively.
Compared with prior art, the utlity model has following advantage:
One-tenth row plated-through hole is the cyclic slow wave structure that elementary cell is formed to the utility model on the substrate integration wave-guide inwall to be symmetricly set in the output employing of directional coupler, utilize the phase-shift characterisitc of slow wave structure, make and to realize 180 degree phase differences between the output of directional coupler and the coupled end.The concrete advantage of the utility model is as follows:
1. low-loss; Because the upper and lower metal backing in this substrate integration wave-guide (SIW) structure and the plated-through hole of both sides are rendered as a kind of enclosed construction of similar traditional rectangular metal waveguide to the electromagnetic wave in the working band, so electromagnetic energy can not be dissipated to this structure part, thereby has low-loss characteristic.
2. low-cost; Because this substrate integration wave-guide (SIW) structure only is made of the plated-through hole that the single-layer medium plate adds upper and lower double layer of metal coating and both sides, so can adopt very ripe at present single-layer printed circuit plate (PCB) production technology to produce, cost is very cheap.
3. difficulty of processing is low, is easy to large-scale production; Traditional rectangular metal waveguide is very high to requirement on machining accuracy, and difficulty of processing is big, so can not large-scale production.And this substrate integration wave-guide (SIW) structure adopts single-layer printed circuit plate (PCB) production technology just may meet the requirements of precision and satisfied performance is arranged, thus can large-scale production, and difficulty of processing is also low a lot.
4. size is little, is easy to integrated; Because this substrate integration wave-guide (SIW) structure adopts single-layer printed circuit plate (PCB) explained hereafter, be integrated in the large-scale circuit and go so can be used as the part of printed circuit board (PCB), avoided the trouble in a lot of designs.
5. the upper and lower surface of device all has metal to cover, and antijamming capability is strong;
6. degree of coupling height in the band in the coupler working band;
7. can fluctuate little by phase difference between the output of coupler and the coupled end.
Description of drawings
Fig. 1 is a structural front view of the present utility model.
Fig. 2 is a structure side view of the present utility model.
Fig. 3 is a structure rearview of the present utility model.
Fig. 4 is the utility model coupling performance correlation curve figure, shows the S of coupler coupling performance
21With S
31Emulation and the test data contrast of curve in working band.Article two, the fluctuation of curve all in ± 0.3dB, therefore can think that the degree of coupling is better.
Fig. 5 is the utility model standing wave performance and isolation performance curve chart, shows the S of coupler incident end and isolation end service behaviour
11With S
41Emulation and the test data contrast of curve in working band.Article two, the test result of curve all-below the 12dB, the curve of isolation end correspondence all-therefore below the 20dB, the performance of above-mentioned two-port meets the routine work requirement, and is comparatively desirable greater than the performance of the isolation of 20dB.
Fig. 6 is the utility model output phase performance chart, shows the absolute value curve of the phase difference of coupler output and coupled end.In the frequency band from 10.50GHz to 11.35GHz, the phase difference fluctuation between the above-mentioned two-port is all less than ± 5 degree.Therefore phase stability is better.
Fig. 7 is the structural representation of plated-through hole of the present utility model.
Embodiment
A kind of chip-integrated waveguide 180-degree 3-db oriented coupler that relates to millimeter wave and microwave device, comprise the two-sided metal patch 2 that is provided with, 3 dielectric substrate 1, on dielectric substrate 1, be provided with 2 substrate integration wave- guides 4,5, the two ends of a substrate integration wave-guide 4 are respectively equipped with input 41 and output 42 therein, be respectively equipped with isolation end 51 and coupled end 52 at the two ends of another substrate integration wave-guide 5, above-mentioned 2 substrate integration wave- guides 4,5 by 3 the row parallel plated-through holes constitute, on the plated-through hole of embarking on journey of centre, be provided with coupling slot 6, at substrate integration wave-guide 4, be respectively equipped with H plane abaculus 71 in 5,72, H plane abaculus 71,72 respectively with embark on journey plated-through hole and the H plane abaculus 71 that are in close proximity to both sides, 72 is relative with coupling slot 6, H plane abaculus 71,72 width is slightly less than the width of coupling slot 6, above-mentioned H plane abaculus 71,72 are made of the plated-through hole of embarking on journey that is parallel to each other, the line number of this plated-through hole determines that according to experiment line number is crossed and do not had the effect that adds close coupling at least; Line number is crossed at most, and reflection increases, the standing wave performance depreciation, be provided with cyclic slow wave structure 8 near the zone in the substrate integration wave-guide 4 of output 42, this cyclic slow wave structure 8 is made of the one-tenth row plated-through hole on two inwalls that are located at substrate integration wave-guide 4 respectively, can determine the approximate range of the columns of corresponding metal through hole according to the correlation theory of slow wave structure, make suitable increase 3-5 row according to experiment then, just can obtain satisfied result.Above-mentioned plated-through hole is to offer through hole on dielectric substrate, metallic sheath 9 is set on through-hole wall and metallic sheath and the metal patch that is overlying on the dielectric substrate bilateral are coupled together.
Claims (1)
1, a kind of chip-integrated waveguide 180-degree 3-db oriented coupler that relates to millimeter wave and microwave device, it is characterized in that comprising the two-sided metal patch (2 that is provided with, 3) dielectric substrate (1), on dielectric substrate (1), be provided with 2 substrate integration wave-guides (4,5), the two ends of a substrate integration wave-guide (4) are respectively equipped with input (41) and output (42) therein, be respectively equipped with isolation end (51) and coupled end (52) at the two ends of another substrate integration wave-guide (5), above-mentioned 2 substrate integration wave-guides (4,5) constitute by the parallel plated-through hole of 3 row, on the plated-through hole of embarking on journey of centre, be provided with coupling slot (6), at substrate integration wave-guide (4,5) be respectively equipped with H plane abaculus (71 in, 72), H plane abaculus (71,72) respectively with embark on journey plated-through hole and the H plane abaculus (71 that are in close proximity to both sides, 72) relative with coupling slot (6), above-mentioned H plane abaculus (71,72) constitute by the plated-through hole of embarking on journey that is parallel to each other, be provided with cyclic slow wave structure (8) near the zone in the substrate integration wave-guide (4) of output (42), this cyclic slow wave structure (8) is made of the one-tenth row plated-through hole on two inwalls that are located at substrate integration wave-guide (4) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520073642 CN2809911Y (en) | 2005-07-15 | 2005-07-15 | Substrate integrated waveguide (SIW) 180-degree three-decibel directional coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520073642 CN2809911Y (en) | 2005-07-15 | 2005-07-15 | Substrate integrated waveguide (SIW) 180-degree three-decibel directional coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2809911Y true CN2809911Y (en) | 2006-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520073642 Expired - Fee Related CN2809911Y (en) | 2005-07-15 | 2005-07-15 | Substrate integrated waveguide (SIW) 180-degree three-decibel directional coupler |
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| CN (1) | CN2809911Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100388556C (en) * | 2005-07-15 | 2008-05-14 | 东南大学 | Chip-integrated waveguide 180-degree 3-db oriented coupler |
| CN104425860A (en) * | 2013-09-06 | 2015-03-18 | 南京理工大学 | Substrate integrated waveguide bandpass filter with wide stop-band characteristic |
| WO2017005000A1 (en) * | 2015-07-07 | 2017-01-12 | Huawei Technologies Co., Ltd. | Substrate integrated waveguide switch |
-
2005
- 2005-07-15 CN CN 200520073642 patent/CN2809911Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100388556C (en) * | 2005-07-15 | 2008-05-14 | 东南大学 | Chip-integrated waveguide 180-degree 3-db oriented coupler |
| CN104425860A (en) * | 2013-09-06 | 2015-03-18 | 南京理工大学 | Substrate integrated waveguide bandpass filter with wide stop-band characteristic |
| WO2017005000A1 (en) * | 2015-07-07 | 2017-01-12 | Huawei Technologies Co., Ltd. | Substrate integrated waveguide switch |
| US9985331B2 (en) | 2015-07-07 | 2018-05-29 | Huawei Technologies Co., Ltd. | Substrate integrated waveguide switch |
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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: 20060823 Termination date: 20100715 |