CN110311201A - A kind of reversed-phase power combiner - Google Patents
A kind of reversed-phase power combiner Download PDFInfo
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- CN110311201A CN110311201A CN201910576792.XA CN201910576792A CN110311201A CN 110311201 A CN110311201 A CN 110311201A CN 201910576792 A CN201910576792 A CN 201910576792A CN 110311201 A CN110311201 A CN 110311201A
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- microstrip line
- epimere
- medium substrate
- reversed
- phase power
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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
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Abstract
This application provides a kind of reversed-phase power combiners, belong to radio frequency and microwave power compounding design technical field.The synthesizer includes the first medium substrate with the first microstrip line and the second medium substrate with the second microstrip line, two medium substrates are isolated by earth plate, the output end of microstrip line is connected to wave-guide cavity wave, the first epimere and the second epimere symmetrically designed in wave-guide cavity wave, first epimere and second epimere constitute self-waveguide cavity one end to when other end extension, pass through with the opening size constantly reduced, it forms ridge waveguide and realizes that impedance converts, the output end of microstrip line is also connected with active point of microstrip line and load resistance, realize the isolation divided between port.The synthesizer that this application provides realizes reverse phase function point, and has preferable isolation performance and port standing wave performance.
Description
Technical field
The application belongs to radio frequency and microwave power compounding design technical field, in particular to a kind of reversed-phase power combiner.
Background technique
In microwave and millimeter wave, microstrip line is a kind of highly important transmission form in microwave integrated circuit, however at present
The interface of many microwave and millimeter wave test macros and device is all made of rectangular waveguide, and therefore, waveguide-microstrip transitions device is extensive
Applied in the detection and waveguide of microwave and millimeter wave monolithic integrated optical circuit and hybrid circuit and the connection of planar circuit, so that two
There is good matching transition between kind transmission line.Waveguide-microstrip transition technology becomes one of the key technology realized for system, by
To extensive research.Common waveguide-microstrip transition technology mainly has: probe transitions, Ridge Waveguide Transitions and fin-line transition etc.；It is micro-
Wave power synthesizer as the important passive device in the systems such as modern microwave communication system, radar system and electronic countermeasure,
In occupation of considerable status in entire microwave system.Its function is to fold multichannel power transmission to progress power all the way
Add.This kind of device is frequently utilized for the power combing in high power system.Microwave power synthesizer common at present is broadly divided into flat
The types such as face microstrip line construction, SIW structure, coaxial configuration and cavity body structure, and the power combiner based on waveguiding structure
Power capacity is high, extensive concern of the small feature of insertion loss by microwave operational person, so using the power point of waveguiding structure
It is microwave, one of of great value research topic in millimeter-wave technology field with technology.
In power synthesis circuit, generallys use mmic chip and carry out power amplification, and mmic chip needs and microstrip line
Matching connection, therefore signal is needed by waveguide transition to corresponding microstrip line, double probes of currently used waveguide to micro-strip
Transition had not only met the conversion of Waveguide-microbelt, but also realized the synthesis of power, but the isolation between each output port is poor,
The isolation of two-way theoretically only has 6dB, worse in actual fabrication.Work as one of input port mismatch when using as function clutch
Or will cause mutual large effect in the case of the serious imbalance of multiple input ports, cause the stability of system to drop
It is low；Although common Ridge Waveguide Transitions have good transiting performance as probe transitions, cannot be as double probe transitions
Not only meet the conversion of Waveguide-microbelt, but also realize the synthesis of power.
Summary of the invention
At least one in order to solve the above-mentioned technical problem, this application provides a kind of reversed-phase power combiners, using double ridges
The transition of waveguide to two-sided microstrip line realizes that reverse phase function point/function closes, while introducing a pair of of microstrip line and forming in-phase end, in this section of mouth
Increase isolation resistance, to realize the isolation between two points of ports.The standing wave performance of point port is improved simultaneously.
The application reversed-phase power combiner, comprising:
First medium substrate, is inside disposed with the first microstrip line, and the first microstrip line has first end and the second end；
Second medium substrate is arranged with the first medium substrate-parallel, is disposed with second in the second medium substrate
Microstrip line, second microstrip line has third end and the 4th end, wherein the first end of first microstrip line and institute
The third end for stating the second microstrip line is located at the same side of first medium substrate or second medium substrate；
Earth plate is arranged between the first medium substrate and the second medium substrate；
Function divides microstrip line, and there are two connectors for one end extension, is connected respectively to first end and the institute of first microstrip line
The third end of the second microstrip line is stated, function divides the other end of microstrip line to be grounded by load resistance；
Wave-guide cavity wave, the first epimere and the second epimere inside symmetrically designed, first epimere and described second
Epimere constitutes self-waveguide cavity one end to when other end extension, has the opening size constantly reduced, first epimere and institute
It states the second epimere and is formed by the lesser one end of opening size and be connected at the first end of first microstrip line and institute
State the third end of the second microstrip line.
Preferably, first epimere is formed by the lesser one end of opening size with second epimere and is separately connected
On first microstrip line and the second microstrip line.
Preferably, first epimere is formed by the lesser one end of opening size with second epimere and is separately connected
On the first medium substrate and second medium substrate.
Preferably, the load resistance is connect with the earth plate.
Preferably, the function divides the first part connecting with first microstrip line and the function point of microstrip line
The second part of microstrip line connecting with second microstrip line is connected by the via hole being arranged on earth plate, the via hole with
The earth plate is electrically isolated.
Preferably, the 4th end of the second end of first microstrip line and second microstrip line is to different directions
Extend.
Preferably, the function divides the length of microstrip line to be a quarter of transmitted signal wavelengths.
Preferably, first epimere and the second epimere are ladder-like, form the opening of the stepped variation of size.
Preferably, first epimere and the second epimere is of same size, and the length of each ladder section is transmission signal
The a quarter of wavelength.
Preferably, the material of the earth plate is copper foil.
The invention compared with the existing technology the utility model has the advantages that
(1) compared to more common Ridge Waveguide Transitions this method in addition to complete waveguide arrive microstrip transition while also realization two-way function
Distribution/synthesis of rate；Compare common waveguide to micro-strip conversion and power of double probe transitions in addition to meeting Waveguide-microbelt
Outside distribution/synthesis, and the improvement for the isolation and port standing wave being easily achieved between each road, connection and system collection convenient for intermodule
At reducing between multiloop loop system integrates the road Shi Yin uneven or even damage give system bring unstability all the way.
(2) it is realized again while the structure is directly realized power distribution/synthesis in Waveguide-microbelt conversion process good
Good isolation, compared with designing a Waveguide-microbelt converter of the good micro-strip function clutch redesign of a isolation performance and carrying out cascade
Compared with structure is more compact, conducive to the Miniaturization Design of system.
(3) the structure isolated port connects power resistor as absorbing load, and resistance can be fixed on circuit boards, and
The position of resistance can be adjusted by the length of microstrip line, compared to Wilkinson etc power splitter isolation resistance more
It is easily assembled and radiates.
Detailed description of the invention
Fig. 1 is the application reversed-phase power combiner structural schematic diagram.
Fig. 2 is the perspective view of structure shown in the application Fig. 1.
Fig. 3 is the application reversed-phase power combiner medium baseplate structure schematic diagram.
Fig. 4 is the application reversed-phase power combiner wave-guide cavity wave structural schematic diagram.
Fig. 5 is the side view at the medium baseplate structure in Fig. 1.
Wherein, 1 be first medium substrate, 11 be the first microstrip line, 2 be second medium substrate, 21 be the second microstrip line, 3
Divide microstrip line for earth plate, 4 for function, 5 be wave-guide cavity wave, and 6 be the first epimere, and 7 be the second epimere, and 8 be via hole, and 9 be load electricity
Resistance.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application implementation clearer, below in conjunction with the application embodiment
In attached drawing, the technical solution in the application embodiment is further described in more detail.In the accompanying drawings, identical from beginning to end
Or similar label indicates same or similar element or element with the same or similar functions.Described embodiment is
A part of embodiment of the application, rather than whole embodiments.Embodiment below with reference to attached drawing description is to show
Example property, it is intended to for explaining the application, and should not be understood as the limitation to the application.Based on the embodiment in the application,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts belongs to this
Apply for the range of protection.Presently filed embodiment is described in detail with reference to the accompanying drawing.
This application provides a kind of reversed-phase power combiners, by different in standard waveguide broadside several sections of increase symmetrical above and below
The high ridge of ridge becomes ridge waveguide and realizes that impedance converts, several hundred ohm of standard waveguide impedance is transformed to close to microstrip line
Upper and lower two ridges are connected respectively to two strip line up and down of two-sided parallel strips in the output end of ridge waveguide by impedance, and double
Increase ground level among face parallel strips, two-sided parallel strips are become into two-way microstrip line up and down, realizes anti-phase output, while
Ridge waveguide and microstrip line interface nearby introduce a pair of of microstrip line symmetrical above and below and are formed with being combined to end, this section of mouth increase every
The isolation divided between port is realized from resistance.
As shown in Figures 1 to 5, the application reversed-phase power combiner includes:
First medium substrate 1, is inside disposed with the first microstrip line 11, and the first microstrip line has first end and second end
Portion；
Second medium substrate 2 is arranged with the first medium substrate-parallel, is disposed with second in the second medium substrate
Microstrip line 21, second microstrip line have third end and the 4th end, wherein the first end of first microstrip line with
The third end of second microstrip line is located at the same side of first medium substrate or second medium substrate；
Earth plate 3 is arranged between the first medium substrate and the second medium substrate；
Function divides microstrip line 4, and there are two connectors for one end extension, is connected respectively to first end and the institute of first microstrip line
The third end of the second microstrip line is stated, function divides the other end of microstrip line to be grounded by load resistance 9；
Wave-guide cavity wave 5, the first epimere 6 and the second epimere 7 inside symmetrically designed, first epimere and described the
When two epimeres constitute self-waveguide cavity one end and extend to the other end, there is the opening size that constantly reduces, first epimere with
Second epimere be formed by the lesser one end of opening size be connected at the first end of first microstrip line and
The third end of second microstrip line.
It should be noted that in Fig. 1, first medium substrate 1, earth plate 3 and second medium substrate 2 laying from top to down,
It is arranged in microstrip circuit cavity, with reference to Fig. 5, earth plate 3 is located at middle layer, for two medium substrates (first up and down to be isolated
Medium substrate 1 and second medium substrate 2), it is respectively arranged with microstrip line on each medium substrate, shown in Fig. 1 and Fig. 3, microstrip line
Including two sections, in overlapped one section and underlapped another section of Z-direction, in Fig. 3, one section of overlapping is extended downward, shape
At the output port (lower end is respectively the first end of the first microstrip line and the third end of the second microstrip line in Fig. 3) of microstrip line, not
One section of overlapping is located above Fig. 3, forms the input port of microstrip line, and upper left side is the second end of the first microstrip line 11, upper right
Side is the 4th end of the second microstrip line.When carrying out power combing, the second end of the first microstrip line 11 in microstrip circuit cavity
With the 4th end anti-phase input of the second microstrip line, enter wave-guide cavity wave 5 in the output end of microstrip line, closes delivery outlet in wave guide power
Realize the synthesis of power.
Medium substrate is divide into upper part and lower part by the present embodiment by the intermediate increase earth plate 3 in two-sided parallel strips,
Two-sided parallel strips are become into two-way microstrip line up and down, two-way power is equal, opposite in phase.It can be achieved after being connect with ridge waveguide anti-
Phase function divide function close.But the isolation that function at this time divides two-port there was only about 6dB, the standing wave of micro-strip port is also poor, to improve
Isolation performance and port standing wave increase isolation circuit structure, i.e. function divides microstrip line 4 and load resistance 9.
Function divides microstrip line 4 to be that a pair of quarter-wave microstrip line (can increase joint number as needed and be hindered up and down
Resistance changes), one across earth plate 3 but earth-free via hole 8 is used to divide microstrip line 4 to be attached upper and lower two function.Function point
Microstrip line 4 divides main road to be connected with function, which can be considered as to the same of magic T and be combined to end, which is regarded
For a four port evil spirit T, at this, be combined to port (at via hole 8) connects load resistance 9 over the ground together, so that the function clutch be made to realize
Reverse phase function also significantly improves the isolation performance of function clutch while conjunction.
When in use, micro-strip input port one or two is connected with two-way microstrip circuit amplifier the function clutch respectively, two-way
The phase requirements reverse phase of amplifier, two-way are exported after function closes by waveguide mouth.
In some optional embodiments, it is lesser that first epimere with second epimere is formed by opening size
One end is connected on first microstrip line and the second microstrip line.
In some optional embodiments, it is lesser that first epimere with second epimere is formed by opening size
One end can also be connected on the first medium substrate and second medium substrate.
One end of wave-guide cavity wave 5 can be considered standard waveguide, waveguide inner broadside it is symmetrical above and below to process ridge width constant
The high different a few section epimeres of ridge, form the different a few section ridge waveguides of impedance, as shown in figure 4, epimere can be set into a ladder, shape
At the opening of the stepped variation of size, each ridge waveguide length that saves is about quarter-wave, to realize the height of standard waveguide
Impedance is to the low-impedance impedance transformation of ridge waveguide, convenient for connecting with low-impedance microstrip circuit.
In some optional embodiments, the load resistance needs to be grounded, and can be directly connected to the earth plate.
In some optional embodiments, the 4th end of the second end of first microstrip line and second microstrip line
Portion extends to different directions.Such as Fig. 1 is into Fig. 3, the second end of the first microstrip line is relative to first end in 90 degree to the
One direction extends, and the 4th end of the second microstrip line extends in 90 degree to second direction relative to third end, and the two is in 180 °,
It can also be in other angles in alternate embodiment.
In some optional embodiments, the material of the earth plate is copper foil.
Through overtesting, which realizes reverse phase function point, and has preferable isolation performance and port standing wave performance.
The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any
Within the technical scope of the present application, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
Cover within the scope of protection of this application.Therefore, the protection scope of the application should be with the scope of protection of the claims
It is quasi-.
Claims (10)
1. a kind of reversed-phase power combiner characterized by comprising
First medium substrate (1) is inside disposed with the first microstrip line (11), and the first microstrip line has first end and second end
Portion；
Second medium substrate (2) arranges that it is micro- to be disposed with second in the second medium substrate with the first medium substrate-parallel
Band line (21), second microstrip line have third end and the 4th end, wherein the first end of first microstrip line with
The third end of second microstrip line is located at the same side of first medium substrate or second medium substrate；
Earth plate (3) is arranged between the first medium substrate and the second medium substrate；
Function divides microstrip line (4), one end extend be connected respectively to there are two connector the first end of first microstrip line with it is described
The third end of second microstrip line, function divide the other end of microstrip line to be grounded by load resistance (9)；
Wave-guide cavity wave (5), the first epimere (6) and the second epimere (7) inside symmetrically designed, first epimere with it is described
Second epimere constitutes self-waveguide cavity one end to when other end extension, has the opening size constantly reduced, first epimere
The lesser one end of opening size is formed by with second epimere to be connected at the first end of first microstrip line
And the third end of second microstrip line.
2. reversed-phase power combiner as described in claim 1, which is characterized in that first epimere and the second epimere institute
The lesser one end of the opening size of formation is connected on first microstrip line and the second microstrip line.
3. reversed-phase power combiner as described in claim 1, which is characterized in that first epimere and the second epimere institute
The lesser one end of the opening size of formation is connected on the first medium substrate and second medium substrate.
4. reversed-phase power combiner as described in claim 1, which is characterized in that the load resistance and the earth plate connect
It connects.
5. reversed-phase power combiner as described in claim 1, which is characterized in that the function divide microstrip line with it is described first micro-
First part and the function with line connection divide the second part of microstrip line connecting with second microstrip line by being arranged in
Via hole (8) on earth plate is connected, and the via hole and the earth plate are electrically isolated.
6. reversed-phase power combiner as described in claim 1, which is characterized in that the second end of first microstrip line and institute
The 4th end for stating the second microstrip line extends to different directions.
7. reversed-phase power combiner as described in claim 1, which is characterized in that the function divides the length of microstrip line for transmission letter
The a quarter of number wavelength.
8. reversed-phase power combiner as described in claim 1, which is characterized in that first epimere and the second epimere are ladder
Shape forms the opening of the stepped variation of size.
9. reversed-phase power combiner as claimed in claim 8, which is characterized in that the width of first epimere and the second epimere
Identical, the length of each ladder section is a quarter of transmitted signal wavelengths.
10. reversed-phase power combiner as claimed in claim 8, which is characterized in that the material of the earth plate is copper foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910576792.XA CN110311201A (en) | 2019-06-28 | 2019-06-28 | A kind of reversed-phase power combiner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910576792.XA CN110311201A (en) | 2019-06-28 | 2019-06-28 | A kind of reversed-phase power combiner |
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| Publication Number | Publication Date |
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| CN110311201A true CN110311201A (en) | 2019-10-08 |
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| CN201910576792.XA Pending CN110311201A (en) | 2019-06-28 | 2019-06-28 | A kind of reversed-phase power combiner |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111525233A (en) * | 2020-05-08 | 2020-08-11 | 北京中微普业科技有限公司 | Small-size dual polarized antenna |
| CN113161709A (en) * | 2021-03-30 | 2021-07-23 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Broadband millimeter wave hybrid waveguide magic T power divider/synthesizer |
| CN113346214A (en) * | 2021-05-25 | 2021-09-03 | 北京无线电测量研究所 | Ridge waveguide coaxial converter |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098309A (en) * | 2015-07-07 | 2015-11-25 | 北京邮电大学 | Inverse-phase power divider |
-
2019
- 2019-06-28 CN CN201910576792.XA patent/CN110311201A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098309A (en) * | 2015-07-07 | 2015-11-25 | 北京邮电大学 | Inverse-phase power divider |
Non-Patent Citations (1)
| Title |
|---|
| BJÖRN DEUTSCHMANN等: ""A Full W-Band Waveguide-to-Differential Microstrip Transition"", 《2019 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM (IMS)》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111525233A (en) * | 2020-05-08 | 2020-08-11 | 北京中微普业科技有限公司 | Small-size dual polarized antenna |
| CN113161709A (en) * | 2021-03-30 | 2021-07-23 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Broadband millimeter wave hybrid waveguide magic T power divider/synthesizer |
| CN113346214A (en) * | 2021-05-25 | 2021-09-03 | 北京无线电测量研究所 | Ridge waveguide coaxial converter |
| CN113346214B (en) * | 2021-05-25 | 2022-07-15 | 北京无线电测量研究所 | Ridge waveguide coaxial converter |
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