CN112490611A - Ceramic power divider with strip line-coplanar waveguide transition structure - Google Patents
Ceramic power divider with strip line-coplanar waveguide transition structure Download PDFInfo
- Publication number
- CN112490611A CN112490611A CN202011375399.3A CN202011375399A CN112490611A CN 112490611 A CN112490611 A CN 112490611A CN 202011375399 A CN202011375399 A CN 202011375399A CN 112490611 A CN112490611 A CN 112490611A
- Authority
- CN
- China
- Prior art keywords
- metal
- coplanar waveguide
- power divider
- metal layer
- strip line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
- H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
Landscapes
- Waveguides (AREA)
Abstract
The invention discloses a ceramic power divider with a stripline-coplanar waveguide transition structure in the field of microwave function devices, which comprises a body mainly composed of a plurality of dielectric slabs, wherein an input port, a first output port and a second output port of the coplanar waveguide structure are arranged on two sides of the body; the upper surface of the top dielectric plate and the lower surface of the bottom dielectric plate are respectively provided with a first metal layer, and the upper surfaces of the two dielectric plates which are distributed up and down in the middle are respectively provided with a second metal layer; the main body of the circuit of the body is of a strip line structure, the metal conduction band and the two second metal layers form a coplanar waveguide (CPW) structure at the positions of the input port, the first output port and the second output port, and the metal conduction band and the two first metal layers form the strip line structure at the middle position of the circuit. The power divider body adopts a strip line structure, has small radiation loss and no transmission dispersion, has input and output forms of coplanar waveguide, and is convenient to integrate with a system.
Description
Technical Field
The invention relates to the field of microwave functional devices, in particular to a ceramic power divider with a stripline-coplanar waveguide transition structure.
Background
The power divider is an important passive device in a microwave system circuit, and has the function of realizing power distribution from one path of signal to multiple paths of signals or realizing power synthesis from multiple paths of signals to one path of signal. A good power divider should have low in-band loss, wide operating bandwidth, good phase and amplitude balance between output signals, and high isolation between output signals, while also being as small as possible.
Common power divider implementation forms include microstrip lines, strip lines, transmission line transformers and the like, the microstrip line power divider is convenient to integrate with a system, but the plane area is large, an air medium with a certain thickness is required above the microstrip lines, the thickness direction of the microstrip line is difficult to reduce, and meanwhile, the dispersion phenomenon exists in signal transmission due to the fact that the dielectric constants of the upper medium and the lower medium of the transmission line are greatly different; the stripline power divider avoids the problems that the dispersion and the thickness direction of the microstrip are difficult to reduce, but the signal transmission line is positioned between two layers of media, and the upper part and the lower part of the signal transmission line are covered by large-area metal, so that the signal transmission line is difficult to integrate with a system.
In order to solve the problems, the invention provides a ceramic power divider with a stripline-coplanar waveguide transition structure based on a multilayer ceramic structure.
Disclosure of Invention
The present invention is directed to a ceramic power divider with a stripline-coplanar waveguide transition structure, so as to solve the problems mentioned in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
a ceramic power divider with a strip line-coplanar waveguide transition structure comprises a body mainly composed of a plurality of dielectric slabs, wherein an input port, a first output port and a second output port of the coplanar waveguide structure are arranged on two sides of the body; the upper surface of the top dielectric slab and the lower surface of the bottom dielectric slab are respectively provided with a first metal layer, the upper surfaces of the two dielectric slabs which are distributed up and down in the middle are respectively provided with a second metal layer, and the first metal layer and the second metal layer are connected through metal columns penetrating through the dielectric slabs; the main body of the circuit of the body is a strip line structure, a metal conduction band in the strip line structure and two second metal layers form a coplanar waveguide structure at the positions of the input port, the first output port and the second output port, and the metal conduction band and two first metal layers form the strip line structure at the middle position of the circuit.
As a modified scheme of the invention, the circuit of the body comprises a metal column, a metal conduction band, an absorption resistor, a first metal layer and a second metal layer.
As an improved scheme of the invention, the two absorption resistors are symmetrically distributed on the middle dielectric plate, one end of each absorption resistor is connected with the second metal layer, and the other end of each absorption resistor is connected with the metal conduction band.
In a further development of the invention, the absorber resistor is a thick-film printed resistor.
As a modified scheme of the invention, the dielectric plate has 10 layers in total, and the second metal layers are respectively arranged on the 6 th layer dielectric plate and the 8 th layer dielectric plate.
As a modified scheme of the invention, the absorption resistor and the metal conduction band are both arranged on the 6 th dielectric plate.
Has the advantages that: in the invention, the power divider body adopts a strip line structure, has small radiation loss and no transmission dispersion, has an output form of coplanar waveguide and is convenient to integrate with a system.
Drawings
Fig. 1 is an external structural schematic diagram of the power divider of the present invention;
FIG. 2 is a schematic diagram of an internal structure of the power divider according to the present invention;
FIG. 3 is a schematic diagram of a stripline-coplanar waveguide transition structure of the present invention;
fig. 4 is a schematic diagram of a layered structure of the power divider of the present invention.
In the figure: 1-an input port; 2-a first output port; 3-a second output port; 4-first metal layer one; 5-a second first metal layer; 6-grounding metal I; 7-grounding metal II; 8-grounding metal III; 9-grounded metal four; 10-grounding metal five; 11-grounded metal six; 12-absorption resistance one; 13-absorption resistance two; 14-metal conduction band; 15-a metal post; 16-second metal layer one; 17-second metal layer two.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a ceramic power divider with a stripline-coplanar waveguide transition structure comprises a body mainly composed of a plurality of dielectric slabs, specifically, the dielectric slabs are provided with 10 layers, the overall thickness is less than 1mm, and the ceramic power divider is thin and small in occupied volume.
The upper surface of the top dielectric slab and the lower surface of the bottom dielectric slab are respectively provided with a first metal layer, and the upper surfaces of the two dielectric slabs which are distributed up and down in the middle are respectively provided with a second metal layer. Specifically, the upper surface of the 1 st dielectric slab is provided with a first metal layer 4, the lower surface of the 10 th dielectric slab is provided with a second metal layer 5, the upper surface of the 6 th dielectric slab in the middle is provided with a first second metal layer 16, the upper surface of the 8 th dielectric slab is provided with a second metal layer 17, and other dielectric slabs are not provided with metal layers. Specifically, the first second metal layer 16 includes a first ground metal 6, a second ground metal 7, a third ground metal 8, and a fifth ground metal 10, where the first ground metal 6 is symmetrical to the second ground metal 7, and the third ground metal 8 is symmetrical to the fifth ground metal 10. The second metal layer 17 includes a grounding metal four 9 and a grounding metal six 11 which are symmetrically distributed.
All dielectric plates are provided with through holes, and the through holes are filled with metal columns 15, so that the first metal layer and the second metal layer are connected through the metal columns 15.
Two absorption resistors are further symmetrically arranged on the 6 th dielectric plate, specifically, a first absorption resistor 12 and a second absorption resistor 13 are arranged and are mainly used for absorbing reflected signals of an output end, improving impedance matching of the output end and improving isolation between two paths of output signals, because a microwave system usually adopts 50 omega impedance, the first absorption resistor 12 and the second absorption resistor 13 are also 50 omega, one end of each absorption resistor is connected with the second metal layer, and the other end of each absorption resistor is connected with the metal conduction band 14. The metal column 15, the metal conduction band 14, the absorption resistor, the first metal layer and the second metal layer form a circuit of the power divider body, and the specific shape of the power divider can be adjusted as required. The circuit main part is the stripline structure, all has the metal post 15 that is on a parallel with metal conduction band 14, first metal level, the second metal level of upper and lower intercommunication at stripline both sides, constitutes the structure of the integrated coaxial line of substrate, and radiation loss when this kind of structure can effectively reduce signal transmission, and then reduces the loss of merit divider and the interference to other parts of external circuit.
The input port 1, the first output port 2 and the second output port 3 of the coplanar waveguide structure are arranged on two sides of the power divider body, so that the power divider is convenient to integrate with a system and is connected with a circuit of a strip line through a strip line-coplanar waveguide transition structure. Specifically, the stripline-coplanar waveguide transition structure behaves as: the metal conduction band 14 forms a coplanar waveguide structure with the two second metal layers at the positions of the input port 1, the first output port 2 and the second output port 3, and forms a strip line structure with the upper and lower first metal layers at the middle position of the circuit, thereby forming a strip line-coplanar waveguide transition structure. The transition structure is not only suitable for Ku wave band, but also can be extended to 50GHz working frequency upwards.
Preferably, the first absorption resistor 12 and the second absorption resistor 13 are thick film printed resistors, and are used for absorbing a reflected signal of an output port of the power divider, improving the standing-wave ratio of the output port, adjusting the resistance in a later period, effectively improving the processing yield and reducing the production cost.
In the frequency range from 14GH to 18GHz, the standing waves of the ports of the power divider are less than 1.3, the isolation between outputs is greater than 20dB, the in-band insertion loss is less than 0.5dB, and the power divider has excellent performance.
Although the present description is described in terms of embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and those skilled in the art should be able to integrate the description as a whole, and the embodiments can be appropriately combined to form other embodiments as will be understood by those skilled in the art.
In the description of the present invention, it should be noted that relational terms such as first and second, and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
In the description of the present invention, it should be further noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally put in use of products of the present invention, which are merely for convenience of description and simplification of description, but do not indicate or imply that the referred devices or elements must have specific orientations, be constructed in specific orientations, and be operated, and thus, should not be construed as limiting the present invention.
Therefore, the above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application; all changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (6)
1. A ceramic power divider with a strip line-coplanar waveguide transition structure is characterized by comprising a body mainly composed of a plurality of dielectric plates, wherein an input port (1), a first output port (2) and a second output port (3) of the coplanar waveguide structure are arranged on two sides of the body; the upper surface of the top dielectric slab and the lower surface of the bottom dielectric slab are respectively provided with a first metal layer, the upper surfaces of the two dielectric slabs which are distributed up and down in the middle are respectively provided with a second metal layer, and the first metal layer and the second metal layer are connected through a metal column (15) penetrating through the dielectric slabs; the main body of the circuit of the body is a strip line structure, a metal conduction band (14) in the strip line structure forms a coplanar waveguide structure with the two second metal layers at the positions of the input port (1), the first output port (2) and the second output port (3), and forms the strip line structure with the two first metal layers at the middle position of the circuit.
2. The ceramic power divider with the stripline-coplanar waveguide transition structure as recited in claim 1, wherein the body circuit comprises a metal pillar (15), a metal conduction band (14), an absorption resistor, a first metal layer, and a second metal layer.
3. The ceramic power divider with the stripline-coplanar waveguide transition structure as recited in claim 2, wherein the absorption resistors are two in total and symmetrically distributed on the middle dielectric slab, one end of each absorption resistor is connected with the second metal layer, and the other end of each absorption resistor is connected with the metal conduction band (14).
4. The ceramic power divider with the stripline-coplanar waveguide transition structure as recited in claim 3, wherein the absorbing resistor is a thick film printed resistor.
5. The ceramic power divider with the stripline-coplanar waveguide transition structure as recited in claim 1, 2, 3 or 4, wherein the dielectric slab comprises 10 layers, and the second metal layer is disposed on the 6 th and 8 th dielectric slabs, respectively.
6. The ceramic power divider with the stripline-coplanar waveguide transition structure as recited in claim 5, wherein the absorption resistor and the metal conduction band (14) are both arranged on the 6 th dielectric slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011375399.3A CN112490611A (en) | 2020-11-30 | 2020-11-30 | Ceramic power divider with strip line-coplanar waveguide transition structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011375399.3A CN112490611A (en) | 2020-11-30 | 2020-11-30 | Ceramic power divider with strip line-coplanar waveguide transition structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112490611A true CN112490611A (en) | 2021-03-12 |
Family
ID=74937466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011375399.3A Pending CN112490611A (en) | 2020-11-30 | 2020-11-30 | Ceramic power divider with strip line-coplanar waveguide transition structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112490611A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113206379A (en) * | 2021-04-06 | 2021-08-03 | 浙江大学 | Multilayer suspension strip line antenna feed structure |
| CN113555656A (en) * | 2021-08-18 | 2021-10-26 | 上海交通大学 | Broadband transition structure of grounded coplanar waveguide and strip line with curved grounding electrode |
| CN116169451A (en) * | 2023-04-03 | 2023-05-26 | 石家庄烽瓷电子技术有限公司 | Three-dimensional packaged miniaturized power divider |
-
2020
- 2020-11-30 CN CN202011375399.3A patent/CN112490611A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113206379A (en) * | 2021-04-06 | 2021-08-03 | 浙江大学 | Multilayer suspension strip line antenna feed structure |
| CN113555656A (en) * | 2021-08-18 | 2021-10-26 | 上海交通大学 | Broadband transition structure of grounded coplanar waveguide and strip line with curved grounding electrode |
| CN116169451A (en) * | 2023-04-03 | 2023-05-26 | 石家庄烽瓷电子技术有限公司 | Three-dimensional packaged miniaturized power divider |
| CN116169451B (en) * | 2023-04-03 | 2024-05-07 | 石家庄烽瓷电子技术有限公司 | Three-dimensional packaged miniaturized power divider |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112490611A (en) | Ceramic power divider with strip line-coplanar waveguide transition structure | |
| AU2006287790B2 (en) | Power divider | |
| EP1010209B1 (en) | Narrow-band overcoupled directional coupler in multilayer package | |
| JP2895005B2 (en) | Doppler radar module | |
| JPH05160614A (en) | Chip type directional coupler | |
| CN108598654B (en) | Coupler based on substrate integrated gap waveguide | |
| CN111342176A (en) | Non-contact radio frequency interlayer transmission structure | |
| CN107257002A (en) | The wide wall micropore couplers of the dB of substrate integration wave-guide 3 | |
| CN112018474A (en) | SIW dual-frequency dual-mode balanced band-pass filter with inherent common-mode rejection | |
| CN111834728A (en) | Broadband unequal-dividing power divider of coplanar waveguide circuit | |
| CN214477844U (en) | Broadband surface-mounted bridge | |
| CN110311201A (en) | A kind of reversed-phase power combiner | |
| CN113809053A (en) | TSV-based compact power divider utilizing parallel RC | |
| KR930004493B1 (en) | Planar airstripline stripline magic tee | |
| CN213782233U (en) | Ceramic power divider with strip line-coplanar waveguide transition structure | |
| CN112864565A (en) | Wilkinson power divider with high isolation of broadband | |
| US20020097108A1 (en) | Transmission line to waveguide mode transformer | |
| WO2021082293A1 (en) | Miniaturized e-plane coupler having slow-wave half-mode substrate integrated waveguide | |
| CN109818124B (en) | Rectangular waveguide-microstrip power divider and rectangular waveguide matched load | |
| CN109585994B (en) | Miniature double-layer half-mode substrate integrated waveguide six-port device | |
| CN114221105A (en) | Signal crossover circuit structure and integrated circuit | |
| Athanasopoulos et al. | Design and Development of 60 GHz Millimeter-wave Passive Components using Substrate Integrated Waveguide Technology | |
| JPS617701A (en) | Nonphase reaction element, nonphase reaction fin line element and microwave isolator | |
| Ghiotto et al. | AFSIW-to-microstrip directional coupler for high-performance systems on substrate | |
| CN217641736U (en) | 90-degree power divider |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |