CN108736123A - A kind of compact suspension micro-strip high isolation multichannel power combiner - Google Patents
A kind of compact suspension micro-strip high isolation multichannel power combiner Download PDFInfo
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- CN108736123A CN108736123A CN201810342349.1A CN201810342349A CN108736123A CN 108736123 A CN108736123 A CN 108736123A CN 201810342349 A CN201810342349 A CN 201810342349A CN 108736123 A CN108736123 A CN 108736123A
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- Prior art keywords
- isolation
- circuit
- strip
- micro
- combiner
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Classifications
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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
Abstract
The present invention relates to a kind of compacts to suspend micro-strip high isolation multichannel power combiner.It is made of suspension micro-strip work(point/combiner circuit, microstrip line or suspended mictrostrip isolation circuit, connection coaxial line.It includes input/output end port, medium substrate, metal micro-strip and upper and lower grounding plate composition to suspend micro-strip work(point/combiner circuit.Isolation circuit uses star-like connection, isolation resistance to be mounted in isolation circuit.Suspended mictrostrip power-devided circuit realizes power distribution and input/output impedance matching.Isolation circuit is realized is isolated between good output standing wave and port.The power compact suspension micro-strip high isolation multichannel power combiner has many advantages, such as that insertion loss is low, input/output echo is good, power capacity is big, isolation is high, broader bandwidth and circuit size are small.The present invention can be used in various High-Power Microwave millimeter-wave systems, have broad application prospects in the systems such as communication, radar, observing and controlling.
Description
Technical field
The invention belongs to wireless communication system technologies fields, are related to a kind of compact suspension micro-strip high isolation multichannel power conjunction
It grows up to be a useful person.
Background technology
With the development of wireless communication technique, power divider/synthesizer is widely used in as a kind of important circuit
In electronic system, especially array antenna, in radar system.In High-Power Microwave millimeter-wave systems, due to single solid-state device
The output power of part is limited, cannot be satisfied high power requirements, and generally use power combiner synthesizes multiple small signals, with
Obtain sufficiently high output signal.In this solution, the performance of power divider/synthesizer is to entire power synthetic system
Performance have important influence.Power combiner refers mainly to indicate：Insertion loss, input/output return loss, power hold
Amount, output port isolation, bandwidth, overall dimensions etc..However, being limited to designing technique and manufacturing process, the above index is usually very
Difficult all to meet, therefore, the development of High-Power Microwave millimeter-wave systems is restricted.Power divider/synthesizer is studied for existing
Development for high-power wireless system has a very important significance.
Invention content
In view of the defect present in technical background, the present invention provides a kind of compacts to suspend micro-strip high isolation multichannel power
Synthesizer.It realizes power distribution/combiner circuit using suspension micro-strip, and microstrip line may be used in isolation circuit or suspension micro-strip is real
Existing, this power combiner insertion loss is low, and input/output echo is good, and power capacity is larger, and isolation is high, bandwidth of operation compared with
Width, circuit size is small, can make up conventional power synthesizer there are the shortcomings that, especially suitable for various miniaturization High-Power Microwaves milli
In metric wave wireless system.
To achieve the above object, the present invention proposes a kind of compact suspension micro-strip high isolation multichannel power combiner.Its
Specific technical solution is as follows：
Compact suspends micro-strip high isolation multichannel power combiner, including between upper layer and lower layer circuit, upper layer and lower layer circuit
Connect coaxial line and input/output end port.It is characterized in that, compact suspend micro-strip high isolation multichannel power combiner by
Suspended mictrostrip work(point/combiner circuit, isolation circuit, connection coaxial line are constituted.Suspended mictrostrip work(point/combiner circuit includes defeated
Enter/output port, medium substrate, metal micro-strip on substrate is invested, and the suspension collectively constituted by upper and lower grounding plate
Micro-strip cavity.Microstrip line or suspended mictrostrip may be used to realize in isolation circuit, it uses star-like connection, and there are one public for tool
Point, isolation resistance are mounted in isolation circuit.Connect coaxial line be in suspension micro-strip work(point/combiner circuit and isolation circuit it
Between, for realizing the connection of suspension micro-strip work(point/between combiner circuit and isolation circuit, and the quantity for connecting coaxial line is equal to
Synthesizer input port quantity.
Compact suspension micro-strip high isolation multichannel power combiner lower layer is suspension micro-strip combiner circuit, upper layer be every
From circuit.By metal cavity processing technology, PCB circuit board processing technology, circuit is realized in combination assembly.
Compact suspension micro-strip high isolation multichannel power combiner operation principle proposed by the invention is as follows：
When suspension micro-strip high isolation multichannel power combiner as power splitter in use, microwave signal from input port feedback
Enter, realizes that N road constant amplitudes are exported with the signal of phase by suspended mictrostrip power-devided circuit.It suspends the input of micro-strip power-devided circuit and uses rank
Terraced matching technique to realize good input return loss, input matching circuit by half-round metal floor be transitioned into the roads N four/
The suspension micro-strip of one wavelength, to reduce the amplitude imbalance caused by edge effect.Isolation circuit may be used microstrip line or
Micro-strip is suspended to realize, it uses star-like connection, and there are one common points for tool.Each connection coaxial line and isolation circuit pass accordingly
Defeated line constitutes the transmission line that electrical length is half wavelength, and the end of isolation circuit transmission line installs isolation resistance, all
Isolation resistance is connected on a common point, to realize the high isolation between good output return loss and output port
Degree.When as power combiner in use, the roads N constant amplitude with phase microwave signal from N number of input port feed-in, pass through and suspend micro-strip and close
The roads N constant amplitude in-phase signal power combing is realized at circuit, after synthesis all the way, is exported from output port.Since suspended mictrostrip has
There are higher q values, is applied to that Low-loss circuit can be achieved in power combiner, to obtain high power combining efficiency.Due to PCB
Substrate high precision machining, significantly reduces mismachining tolerance.
The advantages of patent of the present invention and remarkable result are:
Compact suspension micro-strip high isolation multichannel power combiner proposed by the invention is a kind of directrix plane circuit, not only
With compact-sized, small, the more low advantage of cost, and be easily worked, manufacturing and positioning errors are small, circuit loss
Low, the advantages that power combining efficiency is high and interport isolation is high.The present invention can be used for high power pulse power synthesis circuit and
In various High-Power Microwave millimeter-wave systems, before having wide application in the microwave and millimeter waves system such as communication, radar, observing and controlling
Scape.
Description of the drawings
Fig. 1 is compact suspension micro-strip high isolation multichannel power combiner configurations schematic diagram proposed by the present invention；
Fig. 2 (a) is the input/output time for implementing four road compact suspension micro-strip high isolation multichannel power combiners in example
Wave simulation curve, transfer curve；
Fig. 2 (b) be implement the output ports of four road compacts suspension micro-strip high isolation multichannel power combiners in example every
From simulation curve；
Attached figure label corresponds to entitled：
(1) isolation circuit microstrip line (2) isolation resistance (3) isolation circuit microstrip line medium substrate (4) connection coaxial line (5)
Grounding plate (6) work(point/combiner circuit microstrip line (7) work(point/combiner circuit medium substrate (8) suspension is micro- on suspended mictrostrip
Grounding plate under band line
Specific implementation mode
Below by for example bright advantages of the present invention.
Fig. 1 is that a kind of compact proposed by the present invention suspends micro-strip high isolation multichannel power combiner, the circuit include with
Under several parts：Suspended mictrostrip power-devided circuit, micro-strip isolation circuit, isolation resistance, intermediate coaxial connecting line.Fig. 2 is specific
Four road compacts of design suspend micro-strip high isolation power synthesizer frequency response curve, which is 7.5-
9.5GHz, Fig. 2 (a) are the input and output return loss plot and transfer curve of four tunnel power divider/synthesizers, in 7-
In 9.5GHz frequency ranges, input and output return loss is all higher than 20dB, realizes preferable input and output matching.Fig. 2 (b) is
Simulation curve, in 7-9.5GHz frequency ranges, each output end is isolated in the output port of four tunnel power divider/synthesizers in example 1
Mouth isolation is all higher than 20dB, realizes the high isolation between output port.The length, width and height size of circuit entirety is respectively less than corresponding frequency band
A wavelength in free space.Insertion loss is respectively less than 0.3dB, and pulse power capability is more than 2kW.
Claims (3)
1. a kind of compact suspends micro-strip high isolation multichannel power combiner, including (1) isolation circuit microstrip line, (2) isolation electricity
Resistance, (3) isolation circuit microstrip line medium substrate, (4) connection coaxial line, grounding plate, (6) work(point on (5) suspended mictrostrip/
Grounding plate under combiner circuit microstrip line, (7) work(point/combiner circuit medium substrate, (8) suspended mictrostrip.Isolation circuit can
To be realized using microstrip line or suspension micro-strip, it uses star-like connection, and there are one common point, isolation resistances to be mounted on isolation for tool
In circuit.
2. a kind of compact according to claim 1 suspends micro-strip high isolation multichannel power combiner, by suspension micro-strip work(
Divide/combiner circuit, microstrip line or suspended mictrostrip isolation circuit and connection coaxial line composition.It connects coaxial line and is in suspension micro-strip
Work(point/between combiner circuit and isolation circuit, for realizing the company of suspension micro-strip work(point/between combiner circuit and isolation circuit
It connects, and the quantity for connecting coaxial line is equal to synthesizer input port quantity.
3. a kind of compact suspension micro-strip high isolation multichannel power combiner according to claim 1 is, it can be achieved that power point
Match and complex functionality, the high isolation between output port is realized in wider bandwidth of operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810342349.1A CN108736123A (en) | 2018-04-17 | 2018-04-17 | A kind of compact suspension micro-strip high isolation multichannel power combiner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810342349.1A CN108736123A (en) | 2018-04-17 | 2018-04-17 | A kind of compact suspension micro-strip high isolation multichannel power combiner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108736123A true CN108736123A (en) | 2018-11-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810342349.1A Pending CN108736123A (en) | 2018-04-17 | 2018-04-17 | A kind of compact suspension micro-strip high isolation multichannel power combiner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108736123A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110233316A (en) * | 2019-07-10 | 2019-09-13 | 电子科技大学 | A kind of improvement switching wiring phase shifter |
| CN112290182A (en) * | 2020-09-08 | 2021-01-29 | 南京邮电大学 | Double-frequency power divider based on substrate integrated coaxial line |
-
2018
- 2018-04-17 CN CN201810342349.1A patent/CN108736123A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110233316A (en) * | 2019-07-10 | 2019-09-13 | 电子科技大学 | A kind of improvement switching wiring phase shifter |
| CN112290182A (en) * | 2020-09-08 | 2021-01-29 | 南京邮电大学 | Double-frequency power divider based on substrate integrated coaxial line |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181102 |