CN103441318B - Based on microstrip line to coplanar stripline super-broadband graded ground barron device - Google Patents
Based on microstrip line to coplanar stripline super-broadband graded ground barron device Download PDFInfo
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- CN103441318B CN103441318B CN201310332405.0A CN201310332405A CN103441318B CN 103441318 B CN103441318 B CN 103441318B CN 201310332405 A CN201310332405 A CN 201310332405A CN 103441318 B CN103441318 B CN 103441318B
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Abstract
The invention discloses a kind of based on microstrip line to coplanar stripline super-broadband graded ground barron device, including lower surface metal gradient earth plate, dielectric substrate, the microstrip line of six upper surface sheet metal compositions, coplanar and coplanar stripline structure, five plated-through holes and input/output port.Gradual change and plated-through hole by lower surface floor draw earth signal with upper surface sheet metal at same plane, realize the microstrip line construction conversion to coplanar stripline (CPS) structure, realize 180 degree of phase contrasts simultaneously, complete signal and never equilibrate to the conversion of balance and there is good phase stability and amplitude balance.The present invention has that compact conformation, volume be little, low-loss, be prone to the advantage such as integrated with microwave circuit.Coplanar stripline is at many wave filter, frequency mixers, be widely used in the phase shifter.
Description
Technical field
The present invention relates to a kind of ultra wide band balun, the super-broadband graded ground bar of a kind of microstrip line to coplanar stripline
Human relations.
Background technology
In modern microwave circuit design, it is often necessary to from non-equilibrium to the conversion of balanced transmission line.In Antenna Design,
Impedance matching between balanced feeding and antenna and the feeder line of feed is also the necessity for, such as slot antenna, and Vivaldi antenna,
The design etc. of Archimedes's antenna.Ideally design that a size is little, the balanced impedance changer of high impedance no-load voltage ratio.Along with
The development of current mechanics of communication, the continuous expansion of traffic capacity, it is desirable to antenna works in broader frequency band.Yet with not advising
Then the theory analysis of shape balun is the most highly difficult, and the design and use of this kind of balun can only lean on experience and experiment.
Summary of the invention
It is an object of the invention to provide and have that compact conformation, volume be little, low-loss, be prone to the base integrated with microwave circuit
Super-broadband graded ground balun in microstrip line to coplanar stripline.
The technical scheme realizing the object of the invention is: a kind of super-broadband graded ground based on microstrip line to coplanar stripline bar
Human relations, including medium substrate, lower surface metal earth plate, upper surface the first sheet metal, the second sheet metal, the 3rd sheet metal, the 4th
First plated-through hole, the second plated-through hole, the 3rd gold medal in sheet metal, fifth metal sheet, the 6th sheet metal and dielectric substrate
Genusization through hole, the 4th plated-through hole, fifth metal through hole and input port, output the first port, export the second port；
Wherein, dielectric substrate lower surface metal earth plate is spliced by three parts, and Part I is that upper surface the first sheet metal is corresponding
Metal ground plate at lower surface position crossfades into the width as the 3rd sheet metal, the first sheet metal from rectangle along half ridged
Corresponding lower surface fades to without metal floor, the 3rd sheet metal, the 4th no ground metallic plate in sheet metal lower surface corresponding position；Second
Part is upper surface fifth metal sheet, the 6th sheet metal has symmetrical gradual change ridged metallic ground respectively corresponding to lower surface position
Plate；Part III is to connect Part II and the metal floor of Part I, connects first two respectively along lower surface dielectric boundaries
Point, it is achieved altogether；First plated-through hole, the second plated-through hole, the 3rd plated-through hole, the 4th plated-through hole, the 5th
Plated-through hole is all connected with upper and lower medium surface；Second sheet metal be affixed on the first plated-through hole, the second plated-through hole,
On three plated-through holes, the 4th plated-through hole, fifth metal through hole, ground corresponding under the first sheet metal is guided to and it
Same layer, it is achieved coplanarly；The tap that input port is drawn by the first sheet metal, exporting the first port is to be drawn by fifth metal sheet
The tap gone out, exporting the second port is the tap drawn by the 6th sheet metal；Second sheet metal and the 3rd sheet metal are connected, and the 3rd
Sheet metal is connected with fifth metal sheet, finally exports to the first port；Input upper surface the first sheet metal and the 4th sheet metal phase
Even, the 4th sheet metal and the 6th sheet metal are connected, and finally export to the second port.
Compared with prior art, its remarkable advantage is the present invention: (1) bandwidth is greatly improved；(2) production cost
Low, formed only with a small amount of through hole in inside and sheet metal, so can greatly reduce process costs；(3) volume is little, and structure is tight
Gather；(4) simple in construction, technique is easily achieved, planar structure, it is easy to integrated with microwave circuit.(5) loss is less.
Accompanying drawing explanation
Fig. 1 is the microstrip line of the present invention structure chart to the super-broadband graded ground barron device of coplanar stripline.
Fig. 2 is the microstrip line of the present invention top view to the super-broadband graded ground barron device of coplanar stripline.
Fig. 3 is the microstrip line of the present invention back to back test structure chart to the super-broadband graded ground barron device of coplanar stripline.
Fig. 4 is the microstrip line of the present invention first output port and second to the super-broadband graded ground barron device of coplanar stripline
The amplitude difference emulation knot of the phase contrast simulation result figure of output port signal and the first output port and the second output port signal
Fruit figure.
Fig. 5 is microstrip line of the present invention to be damaged to the echo under the super-broadband graded ground barron device back-to-back topology of coplanar stripline
Consumption simulation result figure.
Fig. 6 is microstrip line of the present invention to be damaged to the insertion under the super-broadband graded ground barron device back-to-back topology of coplanar stripline
Consumption simulation result figure.
Detailed description of the invention:
Below in conjunction with the accompanying drawings the present invention is described in further detail.
In conjunction with Fig. 1, Fig. 2, the super-broadband graded ground barron device of microstrip line of the present invention to coplanar stripline, including medium base
Plate, lower surface metal earth plate, upper surface the first sheet metal S1, the second sheet metal S2, the 3rd sheet metal S3, the 4th sheet metal
First plated-through hole V1 in S4, fifth metal sheet S5, the 6th sheet metal S6 and dielectric substrate, the second plated-through hole V2,
Three plated-through hole V3, the 4th plated-through hole V4, fifth metal through hole V5 and input port P1, export the first port
P2, export the second port P3.Wherein, dielectric substrate lower surface metal earth plate is spliced by three parts, and Part I is upper
Metal ground plate at the first sheet metal S1 correspondence lower surface position of surface crossfades into and the 3rd sheet metal along half ridged from rectangle
The width that S3 is same, the first sheet metal S1 correspondence lower surface fades to without metal floor, the 3rd sheet metal S3, the 4th sheet metal S4
The no ground metallic plate in lower surface corresponding position；Part II is that upper surface fifth metal sheet S5, the 6th sheet metal S6 are corresponding to following table
Position, face has the gradual change ridged metal ground plate of symmetry respectively.Part III is the metal ground connecting Part II and Part I
Plate, connects front two parts respectively along lower surface dielectric boundaries, it is achieved altogether.First plated-through hole V1, the second plated-through hole
V2, the 3rd plated-through hole V3, the 4th plated-through hole V4, fifth metal through hole V5 are all connected with upper and lower medium surface.The
It is logical that two sheet metal S2 are affixed on the first plated-through hole V1, the second plated-through hole V2, the 3rd plated-through hole V3, the 4th metallization
On hole V4, fifth metal through hole V5, ground corresponding under the first sheet metal S1 is guided to and its same layer, it is achieved coplanarly.
The tap that input port P1 is drawn by the first sheet metal S1, exporting the first port P2 is the tap drawn by fifth metal sheet S5,
Exporting the second port P3 is the tap drawn by the 6th sheet metal S6.Second sheet metal S2 and the 3rd sheet metal S3 is connected, and the 3rd
Sheet metal S3 is connected with fifth metal sheet S5, final output to the first port P2.Input upper surface the first sheet metal S1 and the 4th
Sheet metal S4 is connected, and the 4th sheet metal S4 and the 6th sheet metal S6 is connected, final output to the second port P3.
In conjunction with Fig. 1, Fig. 2, in the super-broadband graded ground barron device of microstrip line of the present invention to coplanar stripline, upper surface first
Sheet metal S1, fifth metal sheet S5, the 6th sheet metal S6 are microstrip line construction, corresponding lower surface metal earth plate.3rd metal
Sheet S3, the 4th sheet metal S4 are coplanar stripline structure, and corresponding lower surface is without metal floor.Wherein upper surface the first sheet metal S1
With the lower surface metal of its correspondence constitute microstrip line construction, the floor of the first sheet metal S1 correspondence lower surface by rectangle along half ridge
Shape crossfades into the width as the 3rd sheet metal S3, is converted to coplanar stripline for realizing signal transmission from microstrip line construction
Even transition, it is ensured that electric field by perpendicular media to parallel Jie's fundamental change, it is achieved signal never equilibrate to balance gradually conversion,
Facilitate print production simultaneously, reduce cost, take the structure on coplanar ground, the earth signal of metal floor is logical by the first metallization
Hole V1, the second plated-through hole V2, the 3rd plated-through hole V3, the 4th plated-through hole V4, fifth metal through hole V5 guide to
Upper dielectric surface, reduces reflection simultaneously.Again from the microstrip line construction gradual change by floor, from having to nothing, it is converted into the 3rd metal
The coplanar stripline structure that sheet S3, the 4th sheet metal S4 are constituted, corresponding lower surface without metal floor, the 3rd sheet metal S3, the 4th
Signal phase in sheet metal S4 differs 180 °.
For convenience of being connected with follow-up system, it is converted into again microstrip line construction, i.e. fifth metal sheet (S5), the 6th sheet metal
(S6) and respectively corresponding gradual change ridged metal floor, it is achieved the even transition of coplanar stripline to microstrip line.
Microstrip line of the present invention is summarized as follows to the operation principle of the super-broadband graded ground barron device of coplanar stripline:
Broadband microwave signal enters microstrip line from input port (P1), realizes coplanar by graded metal floor and through hole
Ground, is converted to coplanar stripline transmission by microstrip line transmission, it is achieved two paths of signals phase contrast is 180 degree, is reconverted into microstrip line
Structure is convenient to be connected with follow-up system, totally achieves signal and never equilibrates to the conversion of balance.
Microstrip line of the present invention to the size of the super-broadband graded ground barron device of coplanar stripline be 10.16mm × 25.4mm ×
0.508mm.Its performance can be as can be seen from Figure 4, it is achieved that the ultra wideband from 12.8GHz to 47.2GHz, carries a width of 34.4GHz,
Phase balance is less than 11.6 °, and amplitude balance is less than 2.07dB.Can be obtained by Fig. 5, under back-to-back topology, return loss is bent
Linearly can be fairly good, Insertion Loss performance is the prettyst good.
Claims (3)
1. one kind based on microstrip line to coplanar stripline super-broadband graded ground barron device, it is characterised in that: include medium substrate, under
Surface metal earth plate, upper surface the first sheet metal (S1), the second sheet metal (S2), the 3rd sheet metal (S3), the 4th sheet metal
(S4), in fifth metal sheet (S5), the 6th sheet metal (S6) and medium substrate, the first plated-through hole (V1), the second metallization are led to
Hole (V2), the 3rd plated-through hole (V3), the 4th plated-through hole (V4), fifth metal through hole (V5) and input port
(P1), export the first port (P2), export the second port (P3)；Wherein, medium substrate lower surface metal earth plate is by three parts
Being spliced, Part I is that the metal ground plate at the corresponding lower surface position of upper surface the first sheet metal (S1) is from rectangle edge half
Ridged crossfades into the width as the 3rd sheet metal (S3), and the corresponding lower surface of the first sheet metal (S1) fades to without metal ground
Plate, the 3rd sheet metal (S3), the 4th no ground metallic plate in sheet metal (S4) lower surface corresponding position；Part II is upper surface the 5th
Sheet metal (S5), the 6th sheet metal (S6) have the gradual change ridged metal ground plate of symmetry respectively corresponding to lower surface position；3rd
Part, for connecting Part II and the metal floor of Part I, connects front two parts respectively along lower surface dielectric boundaries, it is achieved
Altogether；First plated-through hole (V1), the second plated-through hole (V2), the 3rd plated-through hole (V3), the 4th plated-through hole
(V4), fifth metal through hole (V5) is all connected with upper and lower medium surface；Second sheet metal (S2) is affixed on the first plated-through hole
(V1), the second plated-through hole (V2), the 3rd plated-through hole (V3), the 4th plated-through hole (V4), fifth metal through hole
(V5), on, ground corresponding under the first sheet metal (S1) is guided to and its same layer, it is achieved coplanarly；Input port (P1) be by
The tap that first sheet metal (S1) is drawn, exporting the first port (P2) is the tap drawn by fifth metal sheet (S5), output the
Two-port netwerk (P3) is the tap drawn by the 6th sheet metal (S6)；Second sheet metal (S2) is connected with the 3rd sheet metal (S3), the
Three sheet metals (S3) are connected with fifth metal sheet (S5), final output to output the first port (P2)；Input upper surface the first gold medal
Belonging to sheet (S1) to be connected with the 4th sheet metal (S4), the 4th sheet metal (S4) is connected with the 6th sheet metal (S6), and final output is to defeated
Go out the second port (P3).
The most according to claim 1 based on microstrip line to coplanar stripline super-broadband graded ground barron device, it is characterised in that:
Upper surface the first sheet metal (S1), fifth metal sheet (S5), the 6th sheet metal (S6) are microstrip line construction, corresponding lower surface metal
Earth plate；3rd sheet metal (S3), the 4th sheet metal (S4) are coplanar stripline structure, and corresponding lower surface is without metal floor；Its
In the floor of the corresponding lower surface of the first sheet metal (S1) crossfade into the width as the 3rd sheet metal (S3) along half ridged, for reality
Existing signal transmission is converted to the even transition of coplanar stripline from microstrip line construction, it is ensured that electric field by perpendicular media to parallel medium
Transformation, it is achieved signal never equilibrate to balance gradually conversion；First plated-through hole (V1), the second plated-through hole
(V2), the 3rd plated-through hole (V3), the 4th plated-through hole (V4), fifth metal through hole (V5) are simultaneously connected with following table
Face, guides to the earth signal of lower surface coplanar with upper surface sheet metal, in order to ensure that electromagnetic field is from microstrip line to coplanar stripline
Even transition, reduce reflection.
The most according to claim 1 and 2 exist to coplanar stripline super-broadband graded ground barron device, its feature based on microstrip line
In: the lower surface metal ground of upper surface the first sheet metal (S1) and its correspondence constitutes microstrip line construction, for convenience of print production, fall
Low cost, takes the structure on coplanar ground, and the earth signal of metal floor is logical by the first plated-through hole (V1), the second metallization
Hole (V2), the 3rd plated-through hole (V3), the 4th plated-through hole (V4), fifth metal through hole (V5) guide to media table
Face, then from the microstrip line construction gradual change by floor, from having to nothing, it is converted into the 3rd sheet metal (S3), the 4th sheet metal (S4)
The coplanar stripline structure constituted, corresponding lower surface is without metal floor, the letter in the 3rd sheet metal (S3), the 4th sheet metal (S4)
Number phase 180 °；For convenience of being connected with follow-up system, be converted into again microstrip line construction, i.e. fifth metal sheet (S5), the 6th
Sheet metal (S6) and the most corresponding gradual change ridged metal floor thereof, it is achieved the even transition of coplanar stripline to microstrip line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310332405.0A CN103441318B (en) | 2013-08-01 | 2013-08-01 | Based on microstrip line to coplanar stripline super-broadband graded ground barron device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310332405.0A CN103441318B (en) | 2013-08-01 | 2013-08-01 | Based on microstrip line to coplanar stripline super-broadband graded ground barron device |
Publications (2)
| Publication Number | Publication Date |
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| CN103441318A CN103441318A (en) | 2013-12-11 |
| CN103441318B true CN103441318B (en) | 2016-09-21 |
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| CN201310332405.0A Expired - Fee Related CN103441318B (en) | 2013-08-01 | 2013-08-01 | Based on microstrip line to coplanar stripline super-broadband graded ground barron device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106469843A (en) * | 2015-08-20 | 2017-03-01 | 南京理工大学 | A kind of ultra wide band balun based on transition structure |
| CN110380168B (en) * | 2019-06-18 | 2021-10-08 | 南京理工大学 | Unbalanced-to-balanced dual-broadband power division filter |
Citations (3)
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|---|---|---|---|---|
| AU6062180A (en) * | 1979-07-20 | 1981-02-05 | Siemens Aktiengesellschaft | Balance converter |
| CN102414912A (en) * | 2009-12-22 | 2012-04-11 | 京瓷株式会社 | Line conversion structure and antenna using same |
| CN103050754A (en) * | 2012-12-30 | 2013-04-17 | 南京理工大学 | Microstrip line-coplanar stripline broadband transitional structure |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6100853A (en) * | 1997-09-10 | 2000-08-08 | Hughes Electronics Corporation | Receiver/transmitter system including a planar waveguide-to-stripline adapter |
| CN1284268C (en) * | 2004-07-30 | 2006-11-08 | 东南大学 | Microstrip balance-unbalance inverter |
| JP2007013809A (en) * | 2005-07-01 | 2007-01-18 | Nippon Dempa Kogyo Co Ltd | High-frequency balun |
| US7772941B2 (en) * | 2008-06-12 | 2010-08-10 | Hong Kong Applied Science And Technology Research Institute Co., Ltd. | Ultra-wideband/dualband broadside-coupled coplanar stripline balun |
-
2013
- 2013-08-01 CN CN201310332405.0A patent/CN103441318B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU6062180A (en) * | 1979-07-20 | 1981-02-05 | Siemens Aktiengesellschaft | Balance converter |
| CN102414912A (en) * | 2009-12-22 | 2012-04-11 | 京瓷株式会社 | Line conversion structure and antenna using same |
| CN103050754A (en) * | 2012-12-30 | 2013-04-17 | 南京理工大学 | Microstrip line-coplanar stripline broadband transitional structure |
Non-Patent Citations (1)
| Title |
|---|
| A LTCC Miniaturized Broadband Modified Marchand Balun;Yongsheng Dai;《2012 International Symposium on Communications and Information Technologies (ISCIT)》;20121231;全文 * |
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