CN115911802A - Air medium strip line power combiner - Google Patents
Air medium strip line power combiner Download PDFInfo
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- CN115911802A CN115911802A CN202211426114.3A CN202211426114A CN115911802A CN 115911802 A CN115911802 A CN 115911802A CN 202211426114 A CN202211426114 A CN 202211426114A CN 115911802 A CN115911802 A CN 115911802A
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- power
- combiner
- resistor
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- strip line
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses an air dielectric strip line power combiner, which is based on a Wilkinson air strip line power combiner, wherein a power resistor is connected between every two branches of the power combiner in a bridging manner, a copper cushion block is further arranged in a cavity below the power resistor, and the power resistor is fixedly connected with the copper cushion block. The air dielectric strip line power synthesizer has the characteristics of few used parts, simple structure and easiness in assembly, adopts an air dielectric strip line mode, adopts a TEM mode as a main working mode, is low in insertion loss and high in strip line bearing power, ensures high isolation degree of the synthesizer due to the added isolation resistor, protects a power amplifier, and can work for a long time because the power absorbed by the isolation resistor is changed into heat which is conducted out through a copper block; the high-power optical fiber cable can bear high-power signals and has the characteristics of low insertion loss and high isolation.
Description
Technical Field
The invention relates to the field of power amplifiers, in particular to an air dielectric strip line power combiner.
Background
The power amplifier is an important component in a modern solid-state radar transmitter, and is a device for amplifying the power of a small signal, because the output power required by a modern radar system is very high, which can reach hundreds to thousands of watts, and the current single solid-state power tube cannot or obtains the high power, which needs to adopt a microwave power synthesis technology.
The power synthesis at the present stage mainly adopts a planar mode and a non-planar mode, and the non-planar power synthesis mainly adopts a radial, waveguide/coaxial cavity synthesizer, so that the defects of large volume and large occupied space for assembly are overcome. And the Wilkinson power synthesizer is small in size and small in assembly occupied space.
The Wilkinson power combiner may be implemented as a microstrip line, a stripline, a suspended microstrip, etc., wherein the stripline power combiner using an air dielectric is subjected to a larger power than the microstrip line and the suspended microstrip, but generally does not have an isolation resistor or the isolation resistor is suspended to the ground. The isolation degree is poor when no isolation resistor is added; when the isolation resistor which is suspended to the ground is added, the power capacity is small, and the isolation resistor is easy to burn after long-time work.
Disclosure of Invention
In order to solve the problems of poor isolation and small power capacity of the Wilkinson power combiner, the invention provides an air medium strip line power combiner.
The utility model provides an air dielectric stripline power combiner, is based on Wilkinson air stripline power combiner, cross-over connection power resistor between per two branch circuits of power combiner, power resistor below cavity still is provided with the cushion, power resistor and cushion fixed connection.
Further, when the air dielectric stripline power synthesizer works normally, the amplitude and the phase of input signals of each input branch are consistent, and the input signals do not flow through the power resistor; further comprising: when the power of one branch is unbalanced, the connected power synthesizer absorbs the unbalanced signal and conducts heat out through the cushion block.
Specifically, the air dielectric stripline power combiner comprises a combiner cover plate, a combiner cavity and a cushion block; the synthesizer cover plate is further provided with a first medium nail, the synthesizer cavity is further provided with a second medium nail, the bottom of the synthesizer cavity is in threaded connection with the cushion block, and the synthesizer cover plate is in threaded connection with the synthesizer cavity.
Specifically, a combiner sheet and a radio frequency connector fixed in a threaded connection mode are further arranged on the combiner cavity, and the combiner sheet is connected with the radio frequency connector in a welding mode.
Specifically, the cushion block is further provided with a power resistor fixed in a soldering mode, and the pin of the power resistor is welded on the combiner chip.
The invention has the beneficial effects that: the invention provides an air dielectric strip line power combiner, which is based on a Wilkinson air strip line power combiner, wherein a power resistor is connected between every two branches of the power combiner in a bridging manner, a cushion block is further arranged in a cavity below the power resistor, and the power resistor is fixedly connected with the cushion block. The invention has the characteristics of less used parts, simple structure and easy assembly, adopts an air medium strip line mode, takes a TEM mode as a main working mode, has low insertion loss and high strip line bearing power, ensures the synthesizer to have higher isolation degree by the added isolation resistor, protects the power amplifier, simultaneously converts the power absorbed by the isolation resistor into heat and conducts the heat out through the copper block, and can work for a long time; the high-power optical fiber cable can bear high-power signals and has the characteristics of low insertion loss and high isolation.
Drawings
FIG. 1 is a schematic diagram of an air dielectric stripline power combiner circuit according to the present invention;
FIG. 2 is an overall assembly drawing of the air dielectric stripline power combiner of the present invention;
FIG. 3 is an assembly view of the cavity of the air dielectric stripline power combiner of the present invention;
FIG. 4 is an assembled view of the cover plate of the air dielectric stripline power combiner of the present invention;
FIG. 5 is an assembled view of the core plate of the air dielectric stripline power combiner of the present invention;
the combiner comprises a combiner cover plate 1, a combiner cavity 2, a first dielectric nail 3, a second dielectric nail 4, a power resistor 5, a combiner sheet 6, a cushion block 7 and a radio frequency connector 8.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings.
The invention provides an air dielectric strip line power combiner, wherein a power resistor is connected between every two branches of the Wilkinson air strip line power combiner in a bridging manner, as shown in figure 1, a cushion block 7 is additionally arranged on a cavity below the power resistor, and a power resistor 5 is fixed on the cushion block 7 through sintering or screws. Even a certain power amplifier mismatch like this, the unbalanced power between two branch roads also can be absorbed to the isolation resistance to become the heat and conduct the cavity 2 through cushion 7 and distribute away, can not cause the isolation resistance to go up the heat and pile up, burn out the isolation resistance.
In the present embodiment, an air dielectric stripline power combiner is shown in fig. 2, fig. 3, fig. 4, and fig. 5 as an assembly diagram, in which:
the synthesizer cover plate 1 is made of metal materials such as aluminum, copper and the like, and the surface of the synthesizer cover plate can be conductively oxidized or electroplated with gold and silver;
the synthesizer cavity 2 is made of metal materials such as aluminum and copper, and the surface of the synthesizer cavity can be conductively oxidized or electroplated with gold and silver;
the first medium nail 3 and the second medium nail 4 are polytetrafluoroethylene medium nails, threaded columns are arranged on the medium nails, and the medium nails can be installed in threaded holes of the cover plate or the cavity and used for clamping the combiner sheet;
the power resistor 5 is plated with metal materials at the bottom, can be directly sintered on the cushion block, and can also be sintered on the flange plate firstly and then locked on the cushion block by screws;
the combining sheet 6 is generally formed by wire cutting of a brass material, and the surface of the combining sheet can be electroplated with gold or silver;
the cushion block 7 can be made of metal materials such as red copper and the like and is used for conducting heat of the power resistor;
and 8 is a radio frequency connector.
In the present embodiment, the assembly of the air dielectric strip line power combiner comprises the following processes: firstly, mounting a first medium nail 3 on a cover plate 1, and mounting a second medium nail 4 on a cavity 2; then fixing a cushion block 7 from the bottom of the synthesizer cavity 2 through a screw, and placing a combiner piece 6 on a medium nail II 4 in the synthesizer cavity 2; fixing the radio frequency connector 8 on the synthesizer cavity 2 by using a screw, and welding the contact positions of the radio frequency connector 8 and the combiner sheet 6 together by using a soldering iron; then, the bottom of the power resistor 5 is fully coated with solder paste and placed on a cushion block 7, the synthesizer cavity 2 which is provided with the medium nail II 4, the cushion block 7, the power resistor 5 and the radio frequency connector 8 is placed on a heating table or in an oven for heating, and the power resistor 5 can be taken out and cooled after the solder paste at the bottom of the power resistor 5 is melted; then welding the contact positions of the pin of the power resistor 5 and the combining sheet 6 together; and finally, fixing the synthesizer cover plate 1 provided with the medium nail I3 on the synthesizer cavity 2 by using screws.
When the power synthesizer works normally, the input signals of the 4 input branches have consistent amplitude and phase, and the signals do not flow through the power resistor; when one path is mismatched, power imbalance between the two paths is caused, unbalanced power signals are absorbed by the power resistor and become heat which is conducted to the outside through the cushion block, and the power resistor cannot be burnt out due to heat accumulation.
The invention provides an air medium strip line power combiner, which is based on a Wilkinson air strip line power combiner, wherein a power resistor is connected between each two branches of the power combiner in a bridging manner, a cushion block is further arranged in a cavity below the power resistor, and the power resistor is fixedly connected with the cushion block. The invention has the characteristics of less used parts, simple structure and easy assembly, adopts an air medium strip line mode, takes a TEM mode as a main working mode, has low insertion loss and high strip line bearing power, ensures the synthesizer to have higher isolation degree by the added isolation resistor, protects the power amplifier, simultaneously converts the power absorbed by the isolation resistor into heat and conducts the heat out through the copper block, and can work for a long time; the high-power optical fiber cable can bear high-power signals and has the characteristics of low insertion loss and high isolation.
The foregoing illustrates and describes the principles and general features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides an air dielectric stripline power combiner, is based on Wilkinson's air stripline power combiner, its characterized in that, cross-over connection power resistor (5) between per two branch circuits of power combiner, power resistor below cavity still is provided with cushion (7), power resistor (5) and copper cushion (7) fixed connection.
2. The air dielectric stripline power combiner of claim 1, wherein when the air dielectric stripline power combiner is in normal operation, the input signal amplitude and phase of each input branch are consistent, and the input signal does not flow through the power resistor (5); further comprising: when one branch is unbalanced in power, the connected power synthesizer (5) absorbs the unbalanced signal and conducts heat through the cushion block (7).
3. An air dielectric stripline power combiner as claimed in claim 1, characterised in that it comprises a combiner lid (1), a combiner cavity (2), a spacer (7); still be provided with medium nail (3) on synthesizer apron (1), still be provided with medium nail two (4) on synthesizer cavity (2), synthesizer cavity (2) bottom and cushion (7) threaded connection, synthesizer apron (1) and synthesizer cavity (2) threaded connection.
4. The air dielectric stripline power combiner according to claim 3, wherein the combiner cavity (2) is further provided with a combiner sheet (6) and a radio frequency connector (8) fixed by a threaded connection manner, and the combiner sheet (6) and the radio frequency connector (8) are connected by welding.
5. An air dielectric stripline power combiner as claimed in claim 3, characterised in that the spacer (7) is further provided with a power resistor (5) fixed by soldering, and the pin of the power resistor (5) is welded to the combining plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211426114.3A CN115911802A (en) | 2022-11-15 | 2022-11-15 | Air medium strip line power combiner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211426114.3A CN115911802A (en) | 2022-11-15 | 2022-11-15 | Air medium strip line power combiner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115911802A true CN115911802A (en) | 2023-04-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211426114.3A Pending CN115911802A (en) | 2022-11-15 | 2022-11-15 | Air medium strip line power combiner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116387789A (en) * | 2023-06-05 | 2023-07-04 | 南京纳特通信电子有限公司 | Broadband high-power multi-path distribution synthesizer |
-
2022
- 2022-11-15 CN CN202211426114.3A patent/CN115911802A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116387789A (en) * | 2023-06-05 | 2023-07-04 | 南京纳特通信电子有限公司 | Broadband high-power multi-path distribution synthesizer |
| CN116387789B (en) * | 2023-06-05 | 2023-08-15 | 南京纳特通信电子有限公司 | Broadband high-power multi-path distribution synthesizer |
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