CN107069164A - The integrated line of rabbet joint waveguide combination transmission line of substrate - Google Patents
The integrated line of rabbet joint waveguide combination transmission line of substrate Download PDFInfo
- Publication number
- CN107069164A CN107069164A CN201710054650.8A CN201710054650A CN107069164A CN 107069164 A CN107069164 A CN 107069164A CN 201710054650 A CN201710054650 A CN 201710054650A CN 107069164 A CN107069164 A CN 107069164A
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- China
- Prior art keywords
- pole plate
- line
- substrate
- transmission line
- rabbet joint
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P3/00—Waveguides; Transmission lines of the waveguide type
- H01P3/16—Dielectric waveguides, i.e. without a longitudinal conductor
Abstract
The integrated line of rabbet joint waveguide combination transmission line of substrate is related to a kind of transmission line, the transmission line by medium substrate (1), be arranged on medium substrate (1) upper left pole plate (11) above and upper right pole plate (12), be arranged on the following bottom left pole plate (13) of medium substrate (1) and bottom right pole plate (14) is constituted；Left side metallization arrays of vias (21) constitutes substrate integration wave-guide (52) through left pole plate (11) and bottom left pole plate (13) in medium substrate (1) connection；Metallized arrays of vias (22) for upper right pole plate (12) and bottom right pole plate (14) and both the right of connection, and bilateral slot line (51) is constituted together with bottom left pole plate (13), bottom right pole plate (14) and the left side metallization arrays of vias (21).The transmission line can be with the transmission of the vertical two kinds of polarization mould of support level, and wherein the characteristic impedance of bilateral slot line and phase velocity adjustable extent be wide, power capacity is big, and the requirement of characteristic impedance and component encapsulation to gap spacing can also be met simultaneously.
Description
Technical field
The present invention relates to a kind of frequency microwave planar transmission line, especially a kind of integrated line of rabbet joint waveguide combination transmission of substrate
Line.
Background technology
Transmission line is most basic element in frequency microwave, and it can not only transmit frequency microwave signal, and itself can also
Constitute frequency microwave component, such as impedance transformer, directional coupler and wave filter.The line of rabbet joint is that a kind of conventional plane is passed
Defeated line, operating frequency range big advantage simple with result.But the coupled capacitor on line of rabbet joint gap both sides is carried by edge capacitance
Supply, the coupled capacitor at this edge is smaller, therefore relative to coupled capacitor than larger microstrip line, the characteristic impedance of the line of rabbet joint
Than larger, typically all more than 100 ohm, so in usual 50 ohm of system in-convenience in use.In order that the spy of the line of rabbet joint
Property impedance is maintained near 50 ohm, and the gap spacing of the general line of rabbet joint is narrow.When gap is very narrow, common PCB technology processing
Relative error just than larger, the deviation of the line of rabbet joint characteristic impedance for being is also than larger, and narrow slot will cause power capacity
Decline, be thus not suitable for the occasion of high-power applications.On the other hand, it is sometimes desirable to element bridge the line of rabbet joint gap two ends, and
The component encapsulation size of general Surface Mount is all customization, the gap spacing and line of rabbet joint characteristic of the requirement of component encapsulation size often occurs
The situation of the gap spacing contradiction of resistance requirements, so as to influence the performance of system.
In radio frequency microwave system, it is sometimes desirable to the transmission line of horizontal and vertical two kinds different polarization types, particularly exist
In the system of multipolarization or circular polarized antenna.General micro-strip, substrate integration wave-guide are vertical polarization type transfers lines, and the line of rabbet joint
The transmission line of horizontal polarization type with co-planar waveguide, the transmission lines of usual both types be in a system it is separated,
The volume of system is so caused to become big.
The content of the invention
Technical problem:The purpose of the present invention is to propose to a kind of integrated line of rabbet joint waveguide combination transmission line of substrate, it is desirable to the transmission
Line is capable of the pattern transmission of support level and vertical two kinds of polarization types；The wherein characteristic impedance of the support level polar transmission line of rabbet joint
And phase velocity adjustable extent is wide, power capacity big, characteristic impedance and component encapsulation can also be met simultaneously gap spacing is wanted
Ask.
Technical scheme：The integrated line of rabbet joint waveguide combination transmission line of substrate of the present invention includes medium substrate, is arranged on medium base
Upper left pole plate, upper right pole plate, bottom left pole plate and the bottom right pole plate on plate two sides；It is upper left pole plate and upper right pole above medium substrate
Plate, the sides aligned parallel of upper left pole plate and upper right pole plate, has upper gap between upper left pole plate and upper right pole plate edge；Medium substrate
Here is the sides aligned parallel of bottom left pole plate and bottom right pole plate, bottom left pole plate and bottom right pole plate, bottom left pole plate and bottom right pole plate edge
Between have lower gap；The left side is metallized, and arrays of vias is parallel with the right metallization arrays of vias, and left side metallization arrays of vias is worn
Cross medium substrate, left pole plate and bottom left pole plate in connection, the right metallization arrays of vias through medium substrate, connect upper right pole plate
With bottom right pole plate；
Upper left pole plate, bottom left pole plate and left side metallization arrays of vias are electrically connected, and substrate integration groove is constituted together
The left pole plate of line waveguide combination transmission line；Upper right pole plate, bottom right pole plate and the right metallization arrays of vias are electrically connected, and one
Act the right pole plate for constituting the integrated line of rabbet joint waveguide combination transmission line of substrate；Jie between left pole plate, right pole plate, left pole plate and right pole plate
Matter substrate constitutes the bilateral slot line of the integrated line of rabbet joint waveguide combination transmission line of substrate together；
Medium substrate between upper left pole plate, bottom left pole plate, left side metallization arrays of vias, upper left pole plate and bottom left pole plate
The substrate integration wave-guide of the integrated line of rabbet joint waveguide combination transmission line of substrate is constituted together.
Upper gap in change between left pole plate and upper right pole plate edge, can adjust the integrated line of rabbet joint waveguide combination of substrate and pass
The characteristic impedance of the bilateral slot line of defeated line；Change the lower gap between bottom left pole plate and bottom right pole plate edge, substrate can be adjusted
The characteristic impedance of the bilateral slot line of integrated line of rabbet joint waveguide combination transmission line and phase velocity.
Change the distance between left side metallization arrays of vias and the right metallization arrays of vias, substrate can be adjusted integrated
The characteristic impedance of the bilateral slot line of line of rabbet joint waveguide combination transmission line and phase velocity；Change left side metallization arrays of vias and the right metal
Change the spacing of adjacent metal via in arrays of vias, the bilateral slot line of the integrated line of rabbet joint waveguide combination transmission line of substrate can be adjusted
Characteristic impedance and phase velocity.
Change the spacing of adjacent metal via in left side metallization arrays of vias, the integrated line of rabbet joint waveguide of substrate can be finely tuned
The characteristic impedance of the substrate integration wave-guide of combination of transmitted line and phase velocity.
Upper left pole plate and bottom left pole plate metallize arrays of vias toward the width in the direction of left side deviation bilateral slot line from the left side,
It is greater than a quarter operation wavelength that substrate integration wave-guide transmits signal.
In the arrays of vias that metallizes, the spacing of adjacent metal via is less than 1/10th wavelength.
Left pole plate and right pole plate are electrically not attached to, therefore the bilateral slot line of the integrated line of rabbet joint waveguide combination transmission line of substrate can be with
Transmit the signal from direct current to frequency microwave, and the transmission mode of the bilateral slot line of the integrated line of rabbet joint waveguide combination transmission line of substrate
It is horizontal polarization.And the substrate integration wave-guide transmission mode of the integrated line of rabbet joint waveguide combination transmission line of substrate is vertical polarization.
Coupled capacitor between two pole plates of characteristic impedance and phase velocity and transmission line of transmission line is relevant.Coupled capacitor is got over
Greatly, characteristic impedance is lower.The coupled capacitor of common line of rabbet joint transmission line is just only provided by the edge capacitance between a gap, and
Gap electric capacity is smaller, therefore the characteristic impedance of the common line of rabbet joint is difficult to do small.And the integrated line of rabbet joint waveguide combination transmission line of substrate
The coupled capacitor of bilateral slot line is made up of three parts：The edge capacitance in upper gap between upper left pole plate and upper right pole plate edge, under
Electric capacity between left pole plate and bottom right pole plate edge between the edge capacitance in lower gap and two rows metallization arrays of vias.Therefore base
The characteristic impedance of the bilateral slot line of the integrated line of rabbet joint waveguide combination transmission line of piece can both be made smaller, can also be made and compare
Greatly, thus the bilateral slot line of the integrated line of rabbet joint waveguide combination transmission line of substrate characteristic impedance adjustable extent it is wide.Similarly substrate collection
Adjustable extent into the bilateral slot line phase velocity of line of rabbet joint waveguide combination transmission line is also wide.
In use, it can also fix and change upper upper gap spacing between left pole plate and upper right pole plate edge, to meet
Requirement of the crossovers package dimension to spacing, at this moment can change between the lower gap between bottom left pole plate and bottom right pole plate edge
Away from or change the distance between left side metallization arrays of vias and the right metallization arrays of vias, substrate can be adjusted integrated
The characteristic impedance of the bilateral slot line of line of rabbet joint waveguide combination transmission line and phase velocity, are wanted with meeting system to characteristic impedance or phase velocity
Ask.
Beneficial effect：The beneficial effect of the integrated line of rabbet joint waveguide combination transmission line of substrate of the present invention is, the transmission line can be with
The spy of the bilateral slot line of the transmission of the pattern of support level and vertical two kinds of polarization types, wherein support level polarization mode transmission
Property impedance and phase velocity adjustable extent is wide, power capacity big, characteristic impedance and component encapsulation can also be met simultaneously between gap
Away from requirement.
Brief description of the drawings
Fig. 1 is the integrated line of rabbet joint waveguide combination transmission line structure schematic diagram of substrate.
Fig. 2 is the integrated line of rabbet joint waveguide combination transmission line structure cross-sectional view of substrate.
Have in figure：Medium substrate 1, upper left pole plate 11, upper right pole plate 12, bottom left pole plate 13, bottom right pole plate 14, left side metal
Change arrays of vias 21, the right metallization arrays of vias 22, upper gap 31, lower gap, bilateral slot line 51 and substrate integration wave-guide 52.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Embodiment of the present invention is：The integrated line of rabbet joint waveguide combination transmission line of substrate includes medium substrate 1, set
Upper left pole plate 11, upper right pole plate 12, bottom left pole plate 13 and bottom right pole plate 14 on the two sides of medium substrate 1；Above medium substrate 1
It is the sides aligned parallel of upper left pole plate 11 and upper right pole plate 12, upper left pole plate 11 and upper right pole plate 12, upper left pole plate 11 and upper right pole
There is upper gap 31 between the edge of plate 12；It is bottom left pole plate 13 and bottom right pole plate 14 below medium substrate 1, bottom left pole plate 13 is with
The sides aligned parallel of right pole plate 14, there is lower gap 32 between bottom left pole plate 13 and the edge of bottom right pole plate 14；Left side metallization via battle array
Row 21 and the right metallization arrays of vias 22 are parallel, and left side metallization arrays of vias 21 is through left pole plate in medium substrate 1, connection
11 and bottom left pole plate 13, the right metallization arrays of vias 22 through medium substrate 1, connect upper right pole plate 12 and bottom right pole plate 14；
Upper left pole plate 11, bottom left pole plate 13 and left side metallization arrays of vias 21 are electrically connected, and substrate is constituted together
The left pole plate of integrated line of rabbet joint waveguide combination transmission line；Upper right pole plate 12, bottom right pole plate 14 and the right metallization arrays of vias 22 are
It is electrically connected, the right pole plate of the integrated line of rabbet joint waveguide combination transmission line of substrate is constituted together；Left pole plate, right pole plate, left pole plate and
Medium substrate 1 between right pole plate constitutes the bilateral slot line 51 of the integrated line of rabbet joint waveguide combination transmission line of substrate together；
Upper left pole plate 11, bottom left pole plate 13, the left side metallization arrays of vias 21, between upper left pole plate 11 and bottom left pole plate 13
Medium substrate 1 constitute the substrate integration wave-guide 52 of the integrated line of rabbet joint waveguide combination transmission line of substrate together.
Upper gap 31 in change between left pole plate 11 and upper right pole plate 12 edge, can adjust the integrated line of rabbet joint waveguide of substrate
The characteristic impedance of the bilateral slot line 51 of combination of transmitted line；Change the lower gap between bottom left pole plate 13 and the edge of bottom right pole plate 14
32, characteristic impedance and the phase velocity of the bilateral slot line 51 of the integrated line of rabbet joint waveguide combination transmission line of substrate can be adjusted.
Change the distance between left side metallization arrays of vias 21 and the right metallization arrays of vias 22, substrate can be adjusted
The characteristic impedance of the bilateral slot line 51 of integrated line of rabbet joint waveguide combination transmission line and phase velocity；Change the left side metallization He of arrays of vias 21
The spacing of adjacent metal via, can adjust the integrated line of rabbet joint waveguide combination transmission line of substrate in the right metallization arrays of vias 22
Bilateral slot line 51 characteristic impedance and phase velocity.
Change the spacing of adjacent metal via in left side metallization arrays of vias 21, the integrated line of rabbet joint ripple of substrate can be finely tuned
Lead characteristic impedance and the phase velocity of the substrate integration wave-guide 52 of combination of transmitted line.
Upper left pole plate 11 and bottom left pole plate 13 deviate the side of bilateral slot line 51 from left side metallization arrays of vias 21 toward the left side
To width, be greater than a quarter operation wavelength that substrate integration wave-guide 52 transmits signal.
The left side is metallized in arrays of vias 21 and the right metallization arrays of vias 22, and the spacing of adjacent metal via is small
In 1/10th wavelength.
Left pole plate and right pole plate are electrically not attached to, therefore the bilateral slot line 51 of the integrated line of rabbet joint waveguide combination transmission line of substrate can
To transmit the signal from direct current to frequency microwave, and the transmission of the bilateral slot line 51 of the integrated line of rabbet joint waveguide combination transmission line of substrate
Pattern is horizontal polarization.And the transmission mode of substrate integration wave-guide 52 of the integrated line of rabbet joint waveguide combination transmission line of substrate is vertical pole
Change.
Coupled capacitor between two pole plates of characteristic impedance and phase velocity and transmission line of transmission line is relevant.Coupled capacitor is got over
Greatly, characteristic impedance is lower.The coupled capacitor of common line of rabbet joint transmission line is just only provided by the edge capacitance between a gap, and
Gap electric capacity is smaller, therefore the characteristic impedance of the common line of rabbet joint is difficult to do small.And the integrated line of rabbet joint waveguide combination transmission line of substrate
The coupled capacitor of bilateral slot line 51 is made up of three parts：The edge in upper gap 31 between upper left pole plate 11 and upper right pole plate 12 edge
Electric capacity, the edge capacitance in lower gap 32 between bottom left pole plate 13 and the edge of bottom right pole plate 14, the left side metallization He of arrays of vias 21
Electric capacity between the right metallization arrays of vias 22.Therefore the bilateral slot line 51 of the integrated line of rabbet joint waveguide combination transmission line of substrate
Characteristic impedance can both be made smaller, can also be made than larger, therefore the integrated line of rabbet joint waveguide combination transmission line of substrate is double
The characteristic impedance adjustable extent of the face line of rabbet joint 51 is wide.The similarly phase velocity of bilateral slot line 51 of the integrated line of rabbet joint waveguide combination transmission line of substrate
Adjustable extent it is also wide.
In use, the spacing of upper gap 31 that can also be fixed between upper left pole plate 11 and upper right pole plate 12 edge of change,
To meet requirement of the crossovers package dimension to spacing, at this moment it can change between bottom left pole plate 13 and the edge of bottom right pole plate 14
The spacing of lower gap 32 or change the distance between left side metallization arrays of vias 21 and the right metallization arrays of vias 22,
Characteristic impedance and the phase velocity of the bilateral slot line 51 of the integrated line of rabbet joint waveguide combination transmission line of substrate can be adjusted, to meet system to spy
Property impedance or the requirement of phase velocity.
Upper ultra-Right plate 12, bottom right pole plate 14, the right metallization arrays of vias 22, between upper ultra-Right plate 12 and bottom right pole plate 14
Medium substrate 1 together, a substrate integration wave-guide can also be reconstructed, so integrated line of rabbet joint waveguide combination transmission line of substrate can
To have three kinds of transmission line structures simultaneously：A kind of bilateral slot line and two kinds of substrate integration wave-guides.
In technique, the integrated line of rabbet joint waveguide combination transmission line of substrate can both use common printed circuit board (PCB) (PCB) work
Skill, it would however also be possible to employ the integrated circuit technology such as LTCC (LTCC) technique or CMOS, Si substrate is realized.The wherein left side
Metallize arrays of vias 21 and the right metallization arrays of vias 22 can be that hollow metal through hole can also be solid metal hole, gold
The shape for belonging to through hole can be circular or square or other shapes.
In accordance with the above, the present invention can just be realized.
Claims (5)
1. a kind of integrated line of rabbet joint waveguide combination transmission line of substrate, it is characterised in that the transmission line includes medium substrate (1), is arranged on
Upper left pole plate (11), upper right pole plate (12), bottom left pole plate (13) and the bottom right pole plate (14) on medium substrate (1) two sides；Medium base
It is the sides aligned parallel of upper left pole plate (11) and upper right pole plate (12), upper left pole plate (11) and upper right pole plate (12) above plate (1),
There is upper gap (31) between upper left pole plate (11) and upper right pole plate (12) edge；It is bottom left pole plate below medium substrate (1)
(13) and bottom right pole plate (14), the sides aligned parallel of bottom left pole plate (13) and bottom right pole plate (14), bottom left pole plate (13) and bottom right pole
There is lower gap (32) between plate (14) edge；Left side metallization arrays of vias (21) is put down with the right metallization arrays of vias (22)
OK, left side metallization arrays of vias (21) through medium substrate (1), in connection left pole plate (11) and bottom left pole plate (13), the right
The arrays of vias that metallizes (22) passes through medium substrate (1), connects upper right pole plate (12) and bottom right pole plate (14)；
Upper left pole plate (11), bottom left pole plate (13) and left side metallization arrays of vias (21) are electrically connected, and base is constituted together
The left pole plate of the integrated line of rabbet joint waveguide combination transmission line of piece；Upper right pole plate (12), bottom right pole plate (14) and the right metallization via battle array
Row (22) are electrically connected, and the right pole plate of the integrated line of rabbet joint waveguide combination transmission line of substrate is constituted together；Left pole plate, right pole plate,
Medium substrate (1) between left pole plate and right pole plate constitutes the bilateral slot line of the integrated line of rabbet joint waveguide combination transmission line of substrate together
(51)；
Upper left pole plate (11), bottom left pole plate (13), left side metallization arrays of vias (21), upper left pole plate (11) and bottom left pole plate
(13) medium substrate (1) between constitutes the substrate integration wave-guide (52) of the integrated line of rabbet joint waveguide combination transmission line of substrate together.
2. a kind of integrated line of rabbet joint waveguide combination transmission line of substrate according to claim 1, it is characterised in that described upper seam
Upper gap (31) in gap (31), change between left pole plate (11) and upper right pole plate (12) edge, can adjust substrate integration groove
The characteristic impedance of the bilateral slot line (51) of line waveguide combination transmission line；Change bottom left pole plate (13) with bottom right pole plate (14) edge it
Between lower gap (32), characteristic impedance and the phase of the bilateral slot line (51) of the integrated line of rabbet joint waveguide combination transmission line of substrate can be adjusted
Speed.
3. a kind of integrated line of rabbet joint waveguide combination transmission line of substrate according to claim 1, it is characterised in that the described left side
The arrays of vias that metallizes (21), the right metallization arrays of vias (22), change distance therebetween, can adjust substrate integrated
The characteristic impedance of the bilateral slot line (51) of line of rabbet joint waveguide combination transmission line and phase velocity；Change the left side metallization arrays of vias (21) and
The spacing of adjacent metal via in the right metallization arrays of vias (22), can adjust the integrated line of rabbet joint waveguide combination transmission of substrate
The characteristic impedance of the bilateral slot line (51) of line and phase velocity.
4. a kind of integrated line of rabbet joint waveguide combination transmission line of substrate according to claim 1, it is characterised in that the described left side
The arrays of vias that metallizes (21), changes the spacing of wherein adjacent metal via, can finely tune the integrated line of rabbet joint waveguide combination of substrate
The characteristic impedance of the substrate integration wave-guide (52) of transmission line and phase velocity.
5. a kind of integrated line of rabbet joint waveguide combination transmission line of substrate according to claim 1, it is characterised in that a described upper left side
Pole plate (11), bottom left pole plate (13), wherein, upper left pole plate (11) and bottom left pole plate (13) are from left side metallization arrays of vias (21)
Deviate the width in the direction of bilateral slot line (51) toward the left side, be greater than a quarter that substrate integration wave-guide (52) transmits signal
Operation wavelength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710054650.8A CN107069164B (en) | 2017-01-24 | 2017-01-24 | Substrate integrated slot line waveguide combined transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710054650.8A CN107069164B (en) | 2017-01-24 | 2017-01-24 | Substrate integrated slot line waveguide combined transmission line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107069164A true CN107069164A (en) | 2017-08-18 |
| CN107069164B CN107069164B (en) | 2020-05-01 |
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ID=59598011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710054650.8A Active CN107069164B (en) | 2017-01-24 | 2017-01-24 | Substrate integrated slot line waveguide combined transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107069164B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108550969A (en) * | 2018-05-25 | 2018-09-18 | 深圳市深大唯同科技有限公司 | A kind of tunable dielectric integrated RF transmission line, coupler and feeding network |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105680136A (en) * | 2016-03-21 | 2016-06-15 | 南京邮电大学 | Transition circuit from coplanar waveguide to groove line and to substrate integrated non-radiation dielectric waveguides |
-
2017
- 2017-01-24 CN CN201710054650.8A patent/CN107069164B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105680136A (en) * | 2016-03-21 | 2016-06-15 | 南京邮电大学 | Transition circuit from coplanar waveguide to groove line and to substrate integrated non-radiation dielectric waveguides |
Non-Patent Citations (1)
| Title |
|---|
| SHUNLI LI等: "Postwall Slotline and Its Application in Design of Short-Pulse Tapered Slot Antennas", 《IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108550969A (en) * | 2018-05-25 | 2018-09-18 | 深圳市深大唯同科技有限公司 | A kind of tunable dielectric integrated RF transmission line, coupler and feeding network |
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| Publication number | Publication date |
|---|---|
| CN107069164B (en) | 2020-05-01 |
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