CN2886828Y - Millimeter wave positioning coupler - Google Patents
Millimeter wave positioning coupler Download PDFInfo
- Publication number
- CN2886828Y CN2886828Y CN 200620068926 CN200620068926U CN2886828Y CN 2886828 Y CN2886828 Y CN 2886828Y CN 200620068926 CN200620068926 CN 200620068926 CN 200620068926 U CN200620068926 U CN 200620068926U CN 2886828 Y CN2886828 Y CN 2886828Y
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- coupling
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- integrated
- millimeter wave
- coupler
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Abstract
The utility model discloses a millimeter-wave directional coupler applicable to the microwave and millimeter-wave circuit, comprising medium substrates, on both sides of which metal pasters are arranged while the medium substrates are equipped with two integrated waveguides consisting of at least three rows of through-holes, an input terminal, a straight-through terminal, an isolating terminal and a coupling terminal are arranged on one surface of the medium substrate, wherein the input terminal and the straight-through terminal are connected with the ends of one integrated waveguide individually, the public side wall between two integrated waveguides is equipped with coupling window, wherein, the metal through-hole for controlling coupling is arranged. The utility model not only is simple in structure, easy to design and low in manufacturing cost, but also has no spurious radiation with wide working band and low inserting attrition as well as loose coupling.
Description
Technical field
The utility model relates to a kind of substrate integration wave-guide coupler that is applied to the microwave and millimeter wave circuit, relates in particular to a kind of millimeter wave directional coupler.
Background technology
Directional coupler is the wider microwave device of a kind of purposes in microwave system, and it can be used for various uses such as modulator-demodulator, power amplifier, balanced mixer, system power detection.The basic index of describing directional coupler has the degree of coupling, isolation, bandwidth of operation etc.As a kind of relatively more classical form, the rectangular waveguide coupler has obtained using in large quantities in radar system.The version of guide directional coupler has a variety of, and with regard to the form of its coupling mechanism, porose, groove, slit are not.The major advantage of Waveguide branching directional coupler is that power capacity is big, is suitable for using in high power transmitter, and its major defect is bulky.Since microstrip line and strip line appearance, people have proposed the branch directional coupler that this class transmission line is formed.Little, the lightweight advantage of volume makes them obtain to use widely in low power system.But it is well-known, when high-frequency operation, because the caused radiation of discontinuity of microstrip line will influence the performance of little band forms coupler greatly, simultaneously, the anti-interference of little band device is also relatively poor, therefore is necessary to seek a kind of have strong anti-interference, low-loss, little, the lightweight microwave and millimeter wave directional coupler of volume form.
Summary of the invention
The utility model provides a kind of low cost, miniaturization and can obtain the millimeter wave directional coupler of weak coupling.The utility model also have be easy to process, frequency selectivity height, volume are little, in light weight, the high and low loss of Q value, low cost, be easy to integrated advantage.
The utility model adopts following technical scheme:
A kind of millimeter wave directional coupler that is applied to the microwave and millimeter wave circuit, comprise the two-sided dielectric substrate that is provided with metal patch, on dielectric substrate, be provided with 2 integrated waveguides, these 2 integrated waveguides are made of at least 3 row metal through holes, on a surface of dielectric substrate, be provided with input and straight-through end and isolation end and coupled end, input is connected with the two ends of an integrated waveguide respectively with straight-through end, isolation end is connected with the two ends of another integrated waveguide respectively with coupled end, on the common side-wall between two integrated waveguides, be provided with coupling window, in coupling window, be provided with the metal throuth hole of control coupling.
Compared with prior art, the utlity model has following advantage:
The utility model is to utilize substrate integrated waveguide technology, has realized directional coupler on dielectric substrate.Whole coupler utilizes traditional PCB or LTCC technology to realize, thereby helps this coupler integrated in the microwave and millimeter wave circuit design.This coupler structure form is simple, is easy to design.Specifically have following advantage:
1) whole coupler mainly is made of the metal throuth hole of metal throuth hole, metal patch, substrate integration wave-guide coupling window and control coupling, and total can utilize traditional PCB or LTCC technology to realize.
2) this coupler does not have parasitic radiation, has the bandwidth of operation of broad, less insertion loss.
3) this coupler design is with low cost, does not need extra debugging after machining.
4) this coupler can work in high frequency (greater than the 10GHz) microwave circuit, and the size of coupler is little, in light weight, simple in structure simultaneously.Because at millimeter wave frequency band, the volume of device is very little, dielectric substrate is very thin, if utilize complicated circuit structure, be difficult to realize the processing and fabricating of circuit, also destroy dielectric substrate simultaneously easily, directional coupling structure of the present utility model is simple, is fit to very much the design of millimeter wave directional coupler.
5) the utility model can obtain weak coupling, its reason is: it is strong and weak at first to utilize the metal throuth hole diameter that constitutes the common side-wall of substrate integration wave-guide in coupling window and the coupler to regulate coupling, while can also be utilized the metal throuth hole among the coupling window to improve and regulate input reflection coefficient and coupling power, control coupling.When the metal throuth hole increasing diameter added-time of the common side-wall that constitutes substrate integration wave-guide, the coupling amount of coupler reduces, it is the main path of this directional coupler of control size, when the increasing diameter added-time of metal throuth hole, the coupling amount reduces, it is the auxiliary approach of control coupling amount size, also is the main path that improves input reflection coefficient simultaneously.
Description of drawings
Fig. 1 is the utility model structural front view.
Fig. 2 is the utility model structure rearview.
Fig. 3 is the partial enlarged drawing of the utility model structure A-A cutaway view.
Fig. 4 is to test result figure of the present utility model.
Fig. 5 is the structural representation that adopts the formed multistage braodband directional coupler of the utility model.
Embodiment
A kind of millimeter wave directional coupler that is applied to the microwave and millimeter wave circuit, comprise the two-sided metal patch 52 that is provided with, 51 dielectric substrate 5, on dielectric substrate 5, be provided with 2 integrated waveguides, these 2 integrated waveguides are made of at least 3 row metal through holes 1, on a surface of dielectric substrate 5, be provided with input 2 and straight-through end 3 and isolation end 6 and coupled end 4, input 2 is connected with the two ends of an integrated waveguide respectively with straight-through end 3, isolation end 6 is connected with the two ends of another integrated waveguide respectively with coupled end 4, on the common side-wall between two integrated waveguides, be provided with coupling window 7, in coupling window 7, be provided with the metal throuth hole 8 of control coupling.Above-mentioned when constituting 2 integrated waveguides by at least 3 row metal through holes 1, and even can be with 1 row, 2 row or 4 row more the multirow metal throuth holes form the sidewall of integrated waveguide.Can form multistage braodband directional coupler, for example: multistage directional coupler shown in Figure 5.To test shows of the present utility model: this directional coupler has the bandwidth of operation of broad, less insertion loss and smaller volume.Tested object be utilize that the PCB technology realized the 10dB millimeter wave substrate integrated waveguide directioning coupler arranged.
Claims (1)
1, a kind of millimeter wave directional coupler, comprise the two-sided metal patch (52 that is provided with, 51) dielectric substrate (5), on dielectric substrate (5), be provided with 2 integrated waveguides, these 2 integrated waveguides are made of at least 3 row metal through holes (1), on a surface of dielectric substrate (5), be provided with input (2) and straight-through end (3) and isolation end (6) and coupled end (4), input (2) is connected with the two ends of an integrated waveguide respectively with straight-through end (3), isolation end (6) is connected with the two ends of another integrated waveguide respectively with coupled end (4), it is characterized in that on the common side-wall between two integrated waveguides, being provided with coupling window (7), in coupling window (7), be provided with the metal throuth hole (8) of control coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620068926 CN2886828Y (en) | 2006-01-26 | 2006-01-26 | Millimeter wave positioning coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620068926 CN2886828Y (en) | 2006-01-26 | 2006-01-26 | Millimeter wave positioning coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2886828Y true CN2886828Y (en) | 2007-04-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620068926 Expired - Lifetime CN2886828Y (en) | 2006-01-26 | 2006-01-26 | Millimeter wave positioning coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2886828Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101901951A (en) * | 2010-08-10 | 2010-12-01 | 华东交通大学 | Bent dual-band bandpass filter applying defected ground level waveguide technology |
| CN101667672B (en) * | 2009-09-23 | 2012-11-28 | 东南大学 | Substrate integrated waveguide directional filter |
| CN101707274B (en) * | 2009-11-26 | 2014-07-16 | 广东通宇通讯股份有限公司 | Microwave combiner |
| CN104218296A (en) * | 2014-09-05 | 2014-12-17 | 西安空间无线电技术研究所 | Multilayer printing technology based waveguide and preparation method thereof |
| CN107882492A (en) * | 2017-12-11 | 2018-04-06 | 重庆工业职业技术学院 | Millimeter wave antenna windowpane |
| CN114597616A (en) * | 2022-03-07 | 2022-06-07 | 南京航空航天大学 | SIW balance filter with high common mode rejection |
-
2006
- 2006-01-26 CN CN 200620068926 patent/CN2886828Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101667672B (en) * | 2009-09-23 | 2012-11-28 | 东南大学 | Substrate integrated waveguide directional filter |
| CN101707274B (en) * | 2009-11-26 | 2014-07-16 | 广东通宇通讯股份有限公司 | Microwave combiner |
| CN101901951A (en) * | 2010-08-10 | 2010-12-01 | 华东交通大学 | Bent dual-band bandpass filter applying defected ground level waveguide technology |
| CN101901951B (en) * | 2010-08-10 | 2014-04-16 | 华东交通大学 | Bent dual-band bandpass filter applying defected ground level waveguide technology |
| CN104218296A (en) * | 2014-09-05 | 2014-12-17 | 西安空间无线电技术研究所 | Multilayer printing technology based waveguide and preparation method thereof |
| CN107882492A (en) * | 2017-12-11 | 2018-04-06 | 重庆工业职业技术学院 | Millimeter wave antenna windowpane |
| CN107882492B (en) * | 2017-12-11 | 2023-10-27 | 重庆工业职业技术学院 | Millimeter wave antenna glass window |
| CN114597616A (en) * | 2022-03-07 | 2022-06-07 | 南京航空航天大学 | SIW balance filter with high common mode rejection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070404 |
|
| EXPY | Termination of patent right or utility model |