CN1825691A - Microwave millimeter wave substrate integrated waveguide directioning coupler - Google Patents
Microwave millimeter wave substrate integrated waveguide directioning coupler Download PDFInfo
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- CN1825691A CN1825691A CN 200610038052 CN200610038052A CN1825691A CN 1825691 A CN1825691 A CN 1825691A CN 200610038052 CN200610038052 CN 200610038052 CN 200610038052 A CN200610038052 A CN 200610038052A CN 1825691 A CN1825691 A CN 1825691A
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Abstract
This invention discloses a chip integrated directional coupler used in microwaves and millimeter waves including a medium chip with metal paste plates on both sides, the chip is set with 2 integrated waveguides composed of at least 3 lines of metallic through holes, an input, a through end, an isolation end and a coupling end are set on a surface of the chip, in which, said input and the through end are connected with both ends of a waveguide, the isolation end and the coupling end are connected with both ends of the other waveguide, a coupling window is set on a common side wall between the two integrated waveguides and a coupled metallic through hole is set in the window.
Description
Technical field
The present invention relates to a kind of substrate integration wave-guide coupler that is applied to the microwave and millimeter wave circuit, relate in particular to a kind of microwave millimeter wave substrate integrated waveguide directioning 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 invention provides a kind of low cost, miniaturization and can obtain the microwave millimeter wave substrate integrated waveguide directioning coupler of weak coupling.The present invention 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 present invention adopts following technical scheme:
A kind of microwave millimeter wave substrate integrated waveguide directioning 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 present invention has following advantage:
The present invention utilizes 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 invention is simple, is fit to very much the design of millimeter wave directional coupler.
5) the present invention 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 a structural front view of the present invention.
Fig. 2 is a structure rearview of the present invention.
Fig. 3 is the partial enlarged drawing of structure A-A cutaway view of the present invention.
Fig. 4 is to test result figure of the present invention.
Fig. 5 is the structural representation that adopts the formed multistage braodband directional coupler of the present invention.
Embodiment
A kind of microwave millimeter wave substrate integrated waveguide directioning 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 invention: 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 microwave millimeter wave substrate integrated waveguide directioning 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), 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 200610038052 CN1825691A (en) | 2006-01-26 | 2006-01-26 | Microwave millimeter wave substrate integrated waveguide directioning coupler |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200610038052 CN1825691A (en) | 2006-01-26 | 2006-01-26 | Microwave millimeter wave substrate integrated waveguide directioning coupler |
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| CN1825691A true CN1825691A (en) | 2006-08-30 |
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| CN 200610038052 Pending CN1825691A (en) | 2006-01-26 | 2006-01-26 | Microwave millimeter wave substrate integrated waveguide directioning coupler |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570029A (en) * | 2011-12-31 | 2012-07-11 | 嘉兴佳利电子股份有限公司 | Method for improving isolation degree of laminated antennas |
| CN103065010A (en) * | 2012-12-28 | 2013-04-24 | 成都泰格微电子研究所有限责任公司 | Surface mounting microwave device intercoupling revising method |
| CN104025376A (en) * | 2012-01-18 | 2014-09-03 | 索尼公司 | Transmission line and transmission method |
| CN104795617A (en) * | 2015-04-10 | 2015-07-22 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | Millimeter-wave orthocoupler with arbitrary coupling factors and design method thereof |
| CN107946720A (en) * | 2017-11-30 | 2018-04-20 | 上海大学 | High-isolation ultra-wideband directional coupler based on substrate integration wave-guide transmission line |
| CN112164853A (en) * | 2020-09-25 | 2021-01-01 | 南京航空航天大学 | Forward wave directional coupler based on microstrip line and substrate integrated waveguide structure |
| CN114361754A (en) * | 2022-01-10 | 2022-04-15 | 电子科技大学 | X-waveband magnetic control frequency-adjustable directional coupler |
| CN115473023A (en) * | 2022-09-22 | 2022-12-13 | 杭州电子科技大学富阳电子信息研究院有限公司 | Weak coupling coupler based on half-mode substrate integrated waveguide and design method thereof |
-
2006
- 2006-01-26 CN CN 200610038052 patent/CN1825691A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570029A (en) * | 2011-12-31 | 2012-07-11 | 嘉兴佳利电子股份有限公司 | Method for improving isolation degree of laminated antennas |
| CN104025376A (en) * | 2012-01-18 | 2014-09-03 | 索尼公司 | Transmission line and transmission method |
| CN103065010A (en) * | 2012-12-28 | 2013-04-24 | 成都泰格微电子研究所有限责任公司 | Surface mounting microwave device intercoupling revising method |
| CN103065010B (en) * | 2012-12-28 | 2015-12-09 | 成都泰格微电子研究所有限责任公司 | Surface mount microwave device intercoupling modification method |
| CN104795617A (en) * | 2015-04-10 | 2015-07-22 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | Millimeter-wave orthocoupler with arbitrary coupling factors and design method thereof |
| CN104795617B (en) * | 2015-04-10 | 2017-11-17 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | Millimeter wave orthocoupler and its design method with arbitrarily coupling factor |
| CN107946720A (en) * | 2017-11-30 | 2018-04-20 | 上海大学 | High-isolation ultra-wideband directional coupler based on substrate integration wave-guide transmission line |
| CN112164853A (en) * | 2020-09-25 | 2021-01-01 | 南京航空航天大学 | Forward wave directional coupler based on microstrip line and substrate integrated waveguide structure |
| CN114361754A (en) * | 2022-01-10 | 2022-04-15 | 电子科技大学 | X-waveband magnetic control frequency-adjustable directional coupler |
| CN114361754B (en) * | 2022-01-10 | 2022-10-14 | 电子科技大学 | X-waveband magnetic control frequency-adjustable directional coupler |
| CN115473023A (en) * | 2022-09-22 | 2022-12-13 | 杭州电子科技大学富阳电子信息研究院有限公司 | Weak coupling coupler based on half-mode substrate integrated waveguide and design method thereof |
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