CN111048880A - Power divider - Google Patents
Power divider Download PDFInfo
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- CN111048880A CN111048880A CN202010089265.9A CN202010089265A CN111048880A CN 111048880 A CN111048880 A CN 111048880A CN 202010089265 A CN202010089265 A CN 202010089265A CN 111048880 A CN111048880 A CN 111048880A
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- power dividing
- dividing strip
- strip line
- connector
- ports
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- 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
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Abstract
The invention discloses a power divider, which comprises a laminated dielectric plate, an upper power dividing strip line and a lower power dividing strip line, wherein the upper power dividing strip line and the lower power dividing strip line are arranged in a crossed laminated mode; the input ports of the upper and lower power dividing strip lines are all arranged on the front side of the laminated dielectric plate, and the output ports of the upper and lower functional strip lines are all arranged on the back side of the laminated dielectric plate; the upper power dividing line is provided with one input and two outputs, connectors are respectively arranged at the ports, and an isolation resistor is arranged between the two outputs; the lower power dividing line is provided with one input and two outputs, connectors are respectively arranged at the ports, and an isolation resistor is arranged between the two outputs. The two-path crossed laminated power divider has a two-path signal synthesis function, can simultaneously meet the blind-mating matching of two receiving and transmitting assemblies, is compact in structure and small in size, is processed by adopting a high-frequency dielectric plate lamination technology, is good in processing consistency and is easy to popularize.
Description
Technical Field
The invention belongs to the technical field of phased array radar feeder lines, and relates to a power divider, in particular to a two-path crossed laminated power divider.
Background
At present, the naval of various countries plans the design and construction of novel warships, and the warships adopt a plurality of novel equipment and novel technologies in the design process. The ship-borne multifunctional phased array radar has outstanding performance and excellent indexes, so that the ship-borne multifunctional phased array radar is applied to a plurality of novel warships and becomes standard configuration of the world navy strong country. In general, in the world, small and medium-sized naval vessels are equipped with phased array radars, and two-dimensional phased array antennas are mostly adopted. Because of the limitation of equipment scale, weight, installation space and the like, the ship-borne radar which is equipped on the small and medium-sized ships at present is a two-coordinate radar which adopts an oscillator or a reflector antenna.
Although various functions of the multifunctional radar developed in various countries are integrated together, the variety and the number of the radar are greatly reduced, the space of an electronic system equipment installation platform on a small and medium-sized ship is small, the load is limited, the miniaturization of a phased array radar antenna array surface is required to be improved continuously, the key technologies of integration, miniaturization, light weight and the like are urgently needed to be broken through, the design concept is required to be changed as a feeder line which is an important component of the antenna array surface, and the outstanding problems of heavy volume, unsuitability for integration and the like are mainly solved.
Disclosure of Invention
The invention provides a compact-size two-path crossed laminated power divider for solving the problems in the prior art.
The invention adopts the following specific technical scheme:
a power divider is divided into two paths and comprises a laminated dielectric plate, an upper power dividing strip line and a lower power dividing strip line, wherein the upper power dividing strip line and the lower power dividing strip line are arranged in a crossed laminated mode; the input ports of the upper and lower power dividing strip lines are all arranged on the front side of the laminated dielectric plate, and the output ports of the upper and lower functional strip lines are all arranged on the back side of the laminated dielectric plate; the upper power dividing line is provided with one input and two outputs, connectors are respectively arranged at the ports, and an isolation resistor is arranged between the two outputs; the lower power dividing line is provided with one input and two outputs, connectors are respectively arranged at the ports, and an isolation resistor is arranged between the two outputs.
Preferably, a surface-mount transition structure is adopted between one input port of the upper-layer power dividing strip line and the connector, and a cross-over transition structure is adopted between two output ports of the upper-layer power dividing strip line and the connector;
preferably, a cross-type transition structure is adopted between one input port of the lower-layer power dividing strip line and the connector, and a surface-mounted transition structure is adopted between two output ports of the upper-layer power dividing strip line and the connector;
preferably, the through transition structure comprises a circular inner conductor pad and four connector pin pads around the circular inner conductor pad, and the connectors and the power dividing strip lines are arranged on two sides of the laminated medium;
preferably, the surface mount type transition structure comprises a rectangular inner conductor pad, a matching branch section and four connector pin pads on the periphery, the connector and the power dividing strip line are arranged on the same surface of the laminated medium, and the matching branch section is used for improving the matching of the connector and the strip line.
Preferably, each connector of the upper and lower power dividing strip lines adopts an SMP type connector;
preferably, the two output ports of the upper power dividing strip line are centrosymmetric, and the two output ports of the lower power dividing strip line are centrosymmetric and in a pairwise symmetric structure;
preferably, when the cold plate is installed, two identical TR assemblies are attached to the cold plate in an axisymmetric manner, input ports of the two TR assemblies are connected in a cross arrangement manner, each TR assembly is provided with two input ports, one of the input ports is connected with one output port of the upper power splitting line, the other input port is connected with one output port of the lower power splitting line, and the four output ports of the power splitter and the four input ports of the TR assemblies can realize vertical blind-mate interconnection.
Compared with the prior art, the invention has the following beneficial effects:
1. the power divider has compact structure and small volume, and is beneficial to realizing the miniaturization and light weight of the phased array antenna array surface;
2. four output ports on the back side of the power divider are centrosymmetric, the TR components can be attached to a cold plate in centrosymmetric mode, two different interface forms are not required to be designed, and the design and production of the TR components are facilitated;
3. the power divider can adopt a positive and negative blind insertion design, reduces the axial installation distance and is convenient for reducing the section size of the phased array antenna array surface;
4. the power divider has a two-way signal synthesis function, can simultaneously meet the blind-plugging matching with two receiving and transmitting assemblies, is processed by adopting a high-frequency dielectric plate laminating technology, has good processing consistency and is easy to popularize.
Drawings
FIG. 1 is a diagram of a two-way cross-stacked power divider of the present invention;
FIG. 2 is a top view of a two-way cross-stacked power divider of the present invention;
fig. 3 is a two-way cross-stacked power divider connector cross-over structure diagram of the present invention;
fig. 4 is a surface-mounted structure diagram of the two-way cross laminated power divider connector of the present invention;
FIG. 5 is a diagram of a two-way cross-stacked power divider assembly of the present invention;
in the figure: 1-upper power dividing line; 2-lower power dividing strip line 3-isolation resistor; 4-isolation resistance; 5-a connector; 6-a connector; 7-a connector; 8-a connector; 9-a connector; 10-a connector; an 11-TR component;
1-1 circular inner conductor pad; 1-2 pin pads; 1-3 conductor pads; 1-4 matching branch nodes; 1-5 pin pads.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The working principle of the invention is as follows:
the invention is realized by adopting a laminated dielectric strip line, and is formed by adding a curing sheet between four microwave printing plates and pressing the curing sheet at high temperature. The upper-layer power dividing strip line and the lower-layer power dividing strip line are designed in a Wilkinson mode, and isolation between output ports is increased by arranging isolation resistors. The connector may be an SMP type connector.
The transition between the power dividing strip line and the SMP type connector is divided into two types: one is a through transition, as shown in fig. 2; one is a surface mount type transition, as shown in fig. 3.
The opposite-penetrating transition is composed of a circular inner conductor bonding pad 1-1 and four connector pin bonding pads 1-2 on the periphery, and the SMP connector and the power dividing strip line are arranged on two sides of a medium.
The surface-mounted transition is composed of a rectangular inner conductor bonding pad 1-3, a matching branch section 1-4 and four connector pin bonding pads 1-5 on the periphery, the SMP connector and the power dividing strip line are on the same surface of a medium, and the matching branch section 1-4 is used for improving the matching of the connector and the strip line.
When the two-path cross laminated power divider is used, two same TR assemblies 11 are symmetrically attached to the cold plate 12, input ports of the same signals on the TR assemblies 11 are arranged in a cross mode, four output ports of the power divider are vertically and blindly connected with four input ports of the TR assemblies, and the purpose that two paths of signals reach the TR assemblies at the same time is achieved.
Example 1:
as shown in fig. 1, the power divider of the present invention is a two-way cross laminated power divider, and is provided with two-way power dividers, including a laminated dielectric plate 13, an upper power dividing strip line 1 and a lower power dividing strip line 2, where the upper power dividing strip line 1 and the lower power dividing strip line 2 are arranged in an up-and-down cross laminated manner.
As shown in fig. 2, the upper and lower power dividing lines are respectively provided with an input port, and are all arranged on the front surface of the laminated dielectric plate 13; the upper and lower functional strip lines are respectively provided with two output ports which are uniformly arranged on the reverse side of the laminated dielectric plate 13.
Connectors are respectively arranged at the ports of one input and two outputs of the upper power dividing line 1, and an isolation resistor 3 is arranged between the two outputs; the input port of the upper layer power dividing strip line 1 is connected with a connector 5, and the output port of the upper layer power dividing strip line 1 is respectively connected with a connector 7 and a connector 8.
The lower power dividing line 2 is provided with one input and two outputs, connectors are respectively arranged at the ports, and an isolation resistor 4 is arranged between the two outputs. The output ports are connected to the connector 6, and the output ports are connected to the connector 9 and the connector 10, respectively.
The two-path crossed laminated power divider is compact in structure and small in size, and facilitates the miniaturization and light-weight design of a phased array antenna array surface.
Example 2:
the optional design of the embodiment is that a surface-mount transition structure is adopted between one input port of the upper power dividing strip line 1 and the connector 5, and a cross-over transition structure is adopted between two output ports of the upper power dividing strip line and the connector;
a pair-through transition structure is adopted between one input port of the lower-layer power dividing strip line 2 and the connector 6, and surface-mounted transition structures are adopted between two output ports of the upper-layer power dividing strip line and the connector;
as shown in fig. 3, the through transition structure includes a circular inner conductor pad 1-1 and four connector pin pads 1-2 around the inner conductor pad, the connectors and the power dividing strip lines are arranged on two sides of the laminated medium, and the connector central conductor and the four ground pins are soldered on the pads after passing through holes reserved on the pads.
As shown in fig. 4, the surface mount transition structure includes rectangular inner conductor pads 1-3, matching stubs 1-4 and four connector pin pads 1-5 around the circumference, the connector and the power dividing strip line are arranged on the same surface of the laminated medium, the central conductor of the connector directly contacts the rectangular inner conductor pads and is welded, the four grounding pins penetrate through the pin pads and are then welded, and the matching stubs are used for improving the matching of the connector and the strip line.
The input and output ports of the same power divider adopt different transition structures, so that the input and output ports are distributed on the front and back sides of the power divider, and two radio frequency assemblies with different functions can be conveniently and vertically interconnected.
Example 3:
as shown in fig. 1, the power divider in this embodiment is a two-way cross-stacked power divider, which is divided into two ways, and includes a laminated dielectric plate 13, an upper power dividing strip line 1 and a lower power dividing strip line 2, where the upper power dividing strip line 1 and the lower power dividing strip line 2 are arranged in a cross-stacked manner; the input ports of the upper and lower power dividing strip lines are all arranged on the front side of the laminated dielectric plate 13, and the output ports of the upper and lower functional strip lines are all arranged on the back side of the laminated dielectric plate 13; the upper-layer power dividing line 1 is provided with one input and two outputs, connectors are respectively arranged at the ports, and an isolation resistor 3 is arranged between the two outputs; the lower power dividing line 2 is provided with one input and two outputs, connectors are respectively arranged at the ports, and an isolation resistor 4 is arranged between the two outputs.
In this example, SMP type connectors are used for the connectors of the upper and lower power splitting line ports, and the connectors are suitable for use. The upper-layer power dividing line 1 is provided with an input port and two output ports, the input path is connected with the SMP type connector 5 through a surface-mounted bonding pad, and the two output paths are connected with the SMP type connector 7 and the SMP type connector 8 through opposite bonding pads.
The lower-layer power dividing line 2 is provided with an input port and two output ports, an isolation resistor 4 is arranged between two paths of outputs, the input path is connected with an SMP type connector 6 through a pair of through bonding pads, and the two paths of outputs are connected with an SMP type connector 9 and an SMP type connector 10 through surface-mounted bonding pads.
Example 4:
the alternative design of this example is that, as shown in fig. 1, the two output ports of the upper power dividing strip line are arranged in four output ports on the reverse side of the laminated medium, and are centrosymmetric, that is, the SMP type connector 7 and the SMP type connector 8 are centrosymmetric.
The two output ports of the lower power dividing strip line are centrosymmetric and in a pairwise symmetric structure, namely the SMP type connector 9 and the SMP type connector 10 are centrosymmetric. This design facilitates connection to the TR module.
Example 5:
the alternative design of this example is that, as shown in fig. 1, the two output ports of the upper power dividing strip line are arranged in four output ports on the reverse side of the laminated medium, and are centrosymmetric, that is, the SMP type connector 7 and the SMP type connector 8 are centrosymmetric.
The two output ports of the lower power dividing strip line are centrosymmetric and in a pairwise symmetric structure, namely the SMP type connector 9 and the SMP type connector 10 are centrosymmetric.
As shown in fig. 5, during installation, two identical TR assemblies 11 are attached to a cold plate in an axisymmetric manner, each TR assembly 11 is provided with two input ports, one of the input ports is connected to an output port of an upper power splitting band, the other input port is connected to an output port of a lower power splitting band, the input ports of the two TR assemblies 11 are wired in a cross arrangement manner, and the four output ports of the power splitter and the four input ports of the TR assemblies can be vertically connected in a blind manner. The axial installation distance is favorably reduced, and the section size of the phased array antenna array surface is reduced.
Example 6:
the example is specifically designed in that: as shown in fig. 1, the two-way cross stacked power divider of this embodiment is divided into two ways, and includes a laminated dielectric board 13, an upper power dividing strip line 1, and a lower power dividing strip line 2, wherein the laminated dielectric board is formed by adding prepregs between four high-frequency printed boards and pressing them at high temperature and high pressure, and the upper power dividing strip line and the lower power dividing strip line are disposed on two middle layers of the four high-frequency printed boards.
As shown in fig. 2, the upper power dividing strip line 1 and the lower power dividing strip line 2 are arranged in a cross-lamination manner; the input ports of the upper and lower power dividing strip lines are all arranged on the front side of the laminated dielectric plate 13, and the output ports of the upper and lower functional strip lines are all arranged on the back side of the laminated dielectric plate 13; the upper-layer power dividing line 1 is provided with one input and two outputs, connectors are respectively arranged at the ports, and an isolation resistor 3 is arranged between the two outputs; the lower power dividing line 2 is provided with one input and two outputs, connectors are respectively arranged at the ports, and an isolation resistor 4 is arranged between the two outputs.
A surface-mount transition structure is adopted between one input port of the upper power dividing line 1 and the connector 5, and a cross-through transition structure is adopted between two output ports of the upper power dividing line and the connector;
a pair-through transition structure is adopted between one input port of the lower-layer power dividing strip line 2 and the connector 6, and surface-mounted transition structures are adopted between two output ports of the upper-layer power dividing strip line and the connector;
as shown in fig. 3, the through transition structure includes a circular inner conductor pad 1-1 and four connector pin pads 1-2 around the circumference, and the connectors and the power dividing strip lines are arranged on two sides of the laminated medium;
as shown in fig. 4, the surface mount transition structure includes rectangular inner conductor pads 1-3, matching stubs 1-4 and four connector pin pads 1-5 around the circumference, the connector and the power dividing strip line are arranged on the same side of the laminated medium, and the matching stubs are used for improving the matching of the connector and the strip line.
Each connector of the upper layer power dividing strip line and the lower layer power dividing strip line adopts an SMP type connector; and the two input ports on the front surface are respectively an SMP type connector 5 connected with the upper power dividing strip line and an SMP type connector 6 connected with the lower power dividing strip line. And the four output ports on the back side are respectively an SMP type connector 7 and an SMP type connector 8 which are connected with the upper power dividing strip line, and an SMP type connector 9 and an SMP type connector 10 which are connected with the lower power dividing strip line.
The output ports are arranged on the reverse side of the laminated medium, one output port of the upper-layer power dividing strip line is centrosymmetric with one output port of the lower-layer power dividing strip line, the other output port of the upper-layer power dividing strip line is centrosymmetric with the other output port of the lower-layer power dividing strip line, and the output ports are in pairwise symmetric structures; wherein the SMP type connector 7 and the SMP type connector 8 are centrosymmetric, and the SMP type connector 9 and the SMP type connector 10 are centrosymmetric.
As shown in fig. 5, when the cold plate is installed, two identical TR assemblies 11 are attached to the cold plate in an axisymmetric manner, each TR assembly 11 is provided with two input ports, one of the input ports is connected to one output port of the upper power splitting band, the other input port is connected to one output port of the lower power splitting band, the input ports of the two TR assemblies are wired in a cross arrangement manner, and the four output ports of the power splitter and the four input ports of the TR assemblies can be vertically connected in a blind manner.
When the cold plate is installed, two same TR assemblies are attached to the cold plate in an axisymmetric mode, each TR assembly is provided with two input ports, one input port is connected with one output port of an upper-layer power dividing strip line, the other input port is connected with one output port of a lower-layer power dividing strip, the input ports of the two TR assemblies are connected in a cross arrangement mode, and the four output ports of the power divider and the four input ports of the TR assemblies can realize vertical blind plugging interconnection.
And (3) testing:
through actual measurement, the two-way crossed laminated power divider is designed by adopting the embodiment, the overall size is 40mm x 30mm x 1.7mm (without a connector), the voltage standing wave ratio of all ports is less than or equal to 1.2, the amplitude unbalance of the output port is less than or equal to 0.1dB, the phase unbalance is less than or equal to 5 degrees, the insertion loss is less than or equal to 0.3dB, the isolation is greater than or equal to 20dB, and the electrical property is good.
Claims (8)
1. A power divider is characterized in that: the power divider is divided into two paths, and comprises a laminated dielectric plate (13), an upper power dividing strip line (1) and a lower power dividing strip line (2), wherein the upper power dividing strip line (1) and the lower power dividing strip line (2) are arranged in a crossed laminated mode; the input ports of the upper and lower power dividing strip lines are all arranged on the front side of the laminated dielectric plate (13), and the output ports of the upper and lower functional strip lines are all arranged on the back side of the laminated dielectric plate (13); the upper-layer power dividing line (1) is provided with one input and two outputs, connectors are respectively arranged at the ports, and an isolation resistor (3) is arranged between the two outputs; the lower-layer power dividing line (2) is provided with one input and two outputs, connectors are respectively arranged at the ports, and an isolation resistor (4) is arranged between the two outputs.
2. The power divider of claim 1, wherein: a surface-mounted transition structure is adopted between an input port of the upper-layer power dividing strip line (1) and the connector (5), and a through transition structure is adopted between two output ports of the upper-layer power dividing strip line and the connector.
3. The power divider of claim 2, wherein: a through transition structure is adopted between an input port of the lower-layer power dividing strip line (2) and the connector (6), and a surface-mounted transition structure is adopted between two output ports of the upper-layer power dividing strip line and the connector.
4. The power divider of claim 3, wherein: the through transition structure comprises a circular inner conductor bonding pad (1-1) and four connector pin bonding pads (1-2) on the periphery, and the connectors and the power dividing strip lines are arranged on two sides of the laminated medium.
5. The power divider of claim 4, wherein: the surface-mounted transition structure comprises rectangular inner conductor bonding pads (1-3), matching branch sections (1-4) and four connector pin bonding pads (1-5) on the periphery, and the connectors and the power dividing strip lines are arranged on the same surface of the laminated medium.
6. The power divider according to any one of claims 1-5, characterized by: the two output ports of the upper layer power dividing strip line are centrosymmetric, and the two output ports of the lower layer power dividing strip line are centrosymmetric and in a pairwise symmetric structure.
7. The power divider of claim 6, wherein: during installation, two same TR assemblies (11) are attached to a cold plate in an axisymmetric mode, input ports of the two TR assemblies are connected in a crossed arrangement mode, each TR assembly (11) is provided with two input ports, one input port is connected with an output port of an upper power dividing strip line, the other input port is connected with an output port of a lower power dividing strip, and four output ports of a power divider and four input ports of the TR assemblies can realize vertical blind plugging interconnection.
8. The power divider of claim 7, wherein: and each connector of the upper and lower power dividing strip lines adopts an SMP type connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010089265.9A CN111048880A (en) | 2020-02-12 | 2020-02-12 | Power divider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010089265.9A CN111048880A (en) | 2020-02-12 | 2020-02-12 | Power divider |
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| Publication Number | Publication Date |
|---|---|
| CN111048880A true CN111048880A (en) | 2020-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010089265.9A Pending CN111048880A (en) | 2020-02-12 | 2020-02-12 | Power divider |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113675572A (en) * | 2021-08-18 | 2021-11-19 | 电子科技大学 | Compact multi-path power distribution network |
| CN117175175A (en) * | 2023-10-24 | 2023-12-05 | 成都世源频控技术股份有限公司 | Axial wrapping type power divider |
-
2020
- 2020-02-12 CN CN202010089265.9A patent/CN111048880A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113675572A (en) * | 2021-08-18 | 2021-11-19 | 电子科技大学 | Compact multi-path power distribution network |
| CN117175175A (en) * | 2023-10-24 | 2023-12-05 | 成都世源频控技术股份有限公司 | Axial wrapping type power divider |
| CN117175175B (en) * | 2023-10-24 | 2024-01-16 | 成都世源频控技术股份有限公司 | Axial wrapping type power divider |
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Address after: 210038 No.9 Hengyi Road, Nanjing Economic and Technological Development Zone, Jiangsu Province Applicant after: NANJING CHANGJIANG ELECTRONICS GROUP Co.,Ltd. Address before: No. 9, Hengyi Road, Xingang Development Zone, Nanjing, Jiangsu 210038 Applicant before: NANJING CHANGJIANG ELECTRONICS GROUP Co.,Ltd. |
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