CN108072862A - A kind of signal synthetic apparatus of passive submatrix antenna - Google Patents
A kind of signal synthetic apparatus of passive submatrix antenna Download PDFInfo
- Publication number
- CN108072862A CN108072862A CN201711309579.XA CN201711309579A CN108072862A CN 108072862 A CN108072862 A CN 108072862A CN 201711309579 A CN201711309579 A CN 201711309579A CN 108072862 A CN108072862 A CN 108072862A
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- Prior art keywords
- passive
- impedance
- combiner
- feature impedance
- substrate
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
-
- 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 invention discloses a kind of signal synthetic apparatus of passive submatrix antenna, signal synthetic apparatus includes：For the substrate of permanent circuit component；Combiner on the substrate is set；Directional coupler on the substrate is set；High-pass filter on the substrate is set；Input equipment passes sequentially through combiner, directional coupler, high-pass filter and is connected with output terminal；The material of the substrate is F4B microwave materials.The signal synthetic apparatus of the passive submatrix antenna of the present invention, material is used to be used for permanent circuit component for F4B microwave materials, the technical solution that two signals inputted respectively using two sub- array antennas are integrated by combiner, and it is exported after passing sequentially through directional coupler, high-pass filter, with lumped parameter and the circuit structure of distributed constant device designed in conjunction, insertion loss can effectively be reduced, improve interport isolation, distorted signals is avoided, and equipment integrally has the characteristics that small, light-weight, at low cost, reliability is high.
Description
Technical field
The present invention relates to the technical fields of passive submatrix antenna more particularly to a kind of signal of passive submatrix antenna to synthesize dress
It puts.
Background technology
, it is necessary to which the signal of mutiple antennas unit is integrated in the radar course of work is carried out, and by the letter after integration
Number it is transmitted to signal receiving device, it is therefore desirable to use signal synthetic apparatus.Traditional signal synthetic apparatus is using process
Middle insertion loss is high, input port reflection loss is high, interport isolation is relatively low, easily leads to the letter received by signal receiving device
Number distortion influences the overall performance of radar.
Therefore, the prior art has yet to be improved and developed.
The content of the invention
In view of above-mentioned deficiencies of the prior art, it is an object of the invention to provide a kind of signal synthesis of passive submatrix antenna
Device, it is intended to which solving signal synthetic apparatus of the prior art causes asking for distorted signals received by signal receiving device
Topic.
To achieve the above object, specific technical solution is as follows by the present invention：
A kind of signal synthetic apparatus of passive submatrix antenna, wherein, the signal synthetic apparatus includes：
For the substrate of permanent circuit component；
Combiner on the substrate is set；
Directional coupler on the substrate is set；
High-pass filter on the substrate is set；
Input equipment passes sequentially through combiner, directional coupler, high-pass filter and is connected with output terminal；
The material of the substrate is F4B microwave materials.
The signal synthetic apparatus of the passive submatrix antenna, wherein, the combiner includes first resistor, the second electricity
Resistance, fisrt feature impedance, second feature impedance, third feature impedance, fourth feature impedance, fifth feature impedance, sixth feature
Impedance, seventh feature impedance.
The signal synthetic apparatus of the passive submatrix antenna, wherein, described fisrt feature impedance one end and the first input
Equipment is connected, and the other end is connected with one end of third feature impedance and one end of first resistor；Second feature impedance one end and the
Two input equipments are connected, and the other end is connected with one end of fourth feature impedance and the other end of first resistor；The third feature
The other end of impedance is connected with one end of one end of second resistance and fifth feature impedance；The other end of the fourth feature impedance
It is connected with the other end of second resistance and one end of sixth feature impedance；The other end and seventh feature of the fifth feature impedance
One end of impedance is connected with the other end of sixth feature impedance；The other end of the seventh feature impedance and directional coupler phase
Even.
The signal synthetic apparatus of the passive submatrix antenna, wherein, the high-pass filter includes the first inductance, second
Inductance, the 3rd inductance, the first capacitance, the second capacitance.
The signal synthetic apparatus of the passive submatrix antenna, wherein, one end of first inductance and directional coupler
It is connected with one end of the first capacitance, other end ground connection；The other end of first capacitance and one end of the second inductance and the second electricity
One end of appearance is connected；The other end ground connection of second inductance；The other end of second capacitance and one end of the 3rd inductance and
Output terminal is connected；The other end ground connection of 3rd inductance.
The signal synthetic apparatus of the passive submatrix antenna, wherein, the combiner can simultaneously with two input equipments
It is attached.
Advantageous effect：
A kind of signal synthetic apparatus of passive submatrix antenna of the present invention uses material to be used for permanent circuit for F4B microwave materials
Component, the technical solution that two signals inputted respectively using two sub- array antennas are integrated by combiner, and lead to successively
It is exported after crossing directional coupler, high-pass filter, with lumped parameter and the circuit knot of distributed constant device designed in conjunction
Structure can effectively reduce insertion loss, improve interport isolation, avoid distorted signals, and equipment integrally has small, weight
Gently, at low cost, the characteristics of reliability is high.
Description of the drawings
Fig. 1 is the structure diagram of the signal synthetic apparatus of the passive submatrix antenna of the present invention.
Fig. 2 is the structure chart of the signal synthetic apparatus of the passive submatrix antenna of the present invention.
Fig. 3 be the present invention passive submatrix antenna signal synthetic apparatus in combiner structure diagram.
Fig. 4 be the present invention passive submatrix antenna signal synthetic apparatus in combiner port reflection loss analysis chart.
Fig. 5 be the present invention passive submatrix antenna signal synthetic apparatus in combiner insertion loss analysis chart.
Fig. 6 be the present invention passive submatrix antenna signal synthetic apparatus in combiner port isolation analysis chart.
Fig. 7 be the present invention passive submatrix antenna signal synthetic apparatus in high-pass filter structure diagram.
Fig. 8 be the present invention passive submatrix antenna signal synthetic apparatus in high-pass filter reflection loss analysis chart.
Fig. 9 be the present invention passive submatrix antenna signal synthetic apparatus in high-pass filter insertion loss analysis chart.
Specific embodiment
The present invention provides a kind of signal synthetic apparatus of passive submatrix antenna, for make the purpose of the present invention, technical solution and
Effect is clearer, clear and definite, and the present invention is described in more detail below.It should be appreciated that specific embodiment described herein
It is only used to explain the present invention, be not intended to limit the present invention.
- Fig. 9 is please referred to Fig.1, Fig. 1 is the structure diagram of the signal synthetic apparatus of the passive submatrix antenna of the present invention；Fig. 2
For the circuit structure diagram of the signal synthetic apparatus of the passive submatrix antenna of the present invention；Fig. 3 is the passive submatrix antenna of the present invention
The structure diagram of combiner in signal synthetic apparatus；Fig. 4 is to be closed in the signal synthetic apparatus of the passive submatrix antenna of the present invention
The port reflection loss analysis chart of road device；Fig. 5 be the present invention passive submatrix antenna signal synthetic apparatus in combiner insert
Enter loss analysis figure；Fig. 6 be the present invention passive submatrix antenna signal synthetic apparatus in combiner port isolation analysis chart；
Fig. 7 be the present invention passive submatrix antenna signal synthetic apparatus in high-pass filter structure diagram；Fig. 8 is of the invention
The reflection loss analysis chart of high-pass filter in the signal synthetic apparatus of passive submatrix antenna；Fig. 9 is the passive submatrix of the present invention
The insertion loss analysis chart of high-pass filter in the signal synthetic apparatus of antenna.As described in Figure, a kind of letter of passive submatrix antenna
Number synthesizer, wherein, the signal synthetic apparatus includes：
For the substrate 1 of permanent circuit component；
The combiner 10 being arranged on the substrate 1；
The directional coupler 20 being arranged on the substrate 1；
The high-pass filter 30 being arranged on the substrate 1；
Input equipment passes sequentially through combiner 10, directional coupler 20, high-pass filter 30 and is connected with output terminal；
The material of the substrate 1 is F4B microwave materials.
Two signals that two sub- array antennas input respectively are integrated by combiner, and pass sequentially through directional couple
It is exported after device, high-pass filter, by signal synthetic apparatus to the signal received by two passive submatrix radar antennas
It is integrated, to improve the performance of radar.And signal synthetic apparatus employs lumped parameter and distributed constant dress designed in conjunction
The circuit structure put can effectively reduce insertion loss, improve interport isolation.In the actual production process, signal is synthesized
Device is integrated on one piece of substrate for using F4B microwave materials, greatly reduces the volume of equipment, therefore signal synthetic apparatus has
There is the characteristics of small, light-weight, at low cost, reliability is high.
In a particular embodiment, the combiner 10 include first resistor R1, second resistance R2, fisrt feature impedance Z 1,
Second feature impedance Z 2, third feature impedance Z 3, fourth feature impedance Z 4, fifth feature impedance Z 5, sixth feature impedance Z 6, the
Seven characteristic impedance Z7.Wherein, fisrt feature impedance is identical with second feature impedance, third feature impedance and fourth feature impedance phase
Together, fifth feature impedance is identical with sixth feature impedance.
Wherein, the combiner uses Wilkinson（Wilkinson）Combiner form.Due to combiner bandwidth compared with
Width must can just be met the requirements using multiple-rank arrangement, therefore combiner uses second order structure.
In a particular embodiment, described 1 one end of fisrt feature impedance Z is connected with the first input equipment, the other end and the 3rd
One end of characteristic impedance Z3 is connected with one end of first resistor R1；2 one end of second feature impedance Z is connected with the second input equipment,
The other end is connected with one end of fourth feature impedance Z 4 and the other end of first resistor R1；The third feature impedance Z 3 it is another
End is connected with one end of second resistance R2 and one end of fifth feature impedance Z 5；The other end of the fourth feature impedance Z 4 and
The other end of two resistance R2 is connected with one end of sixth feature impedance Z 6；The other end of the fifth feature impedance Z 5 and the 7th spy
One end of sign impedance Z 7 is connected with the other end of sixth feature impedance Z 6；The other end of the seventh feature impedance Z 7 and orientation coupling
Clutch 20 is connected.
It by the theory of microwave combiner, is calculated by analyzing, the second-order circuit structure for obtaining combiner is as shown in Figure 2.
The wherein resistance value all same of fisrt feature impedance, second feature impedance and seventh feature impedance, the Ω of Z1=Z2=Z7=50, the 3rd is special
It is identical with the resistance value of fourth feature impedance to levy impedance, the Ω of Z3=Z4=60, the resistance value phase of fifth feature impedance and sixth feature impedance
Together, the Ω of the Ω of the Ω of Z5=Z6=83.35, the resistance value R1 of first resistor=250, the resistance value R2 of second resistance=100.In specific embodiment
In, fisrt feature impedance, second feature impedance, third feature impedance, fourth feature impedance, fifth feature impedance, sixth feature
Using F4B microwave materials, the effective dielectric constant of microwave material is 2.2 for impedance, seventh feature impedance, the thickness of substrate in material
It spends for 0.8mm.
It is analyzed by the performance to combiner, respectively obtains Combiner port reflection loss analysis chart, combiner is inserted
Enter loss analysis figure, Combiner port isolation analysis chart.
As shown in figure 4, port reflection losses of the wherein S1 by seventh feature impedance connects in combiner output terminal, S2
By the port reflection loss for the input terminal that combiner fisrt feature impedance connects, S3 is connected by combiner second feature impedance
Input terminal port reflection loss.Input signal frequency range between 0.9-1.5GHz, combiner can be effective
Reflection loss is controlled, the port reflection loss for the input terminal that wherein fisrt feature impedance is connected and second feature impedance are connected
Input terminal port reflection loss in frequency range 0.9-1.5GHz, be respectively less than 40dB, therefore combiner can significantly drop
The reflection loss of low input port.
It is connected as shown in figure 5, wherein S2,1 by the input terminal that fisrt feature impedance connects with seventh feature impedance
The insertion loss of output terminal；The output terminal that S3,1 is connected by the input terminal that second feature impedance connects with seventh feature impedance
Insertion loss.By reasonably circuit design in combiner, make the insertion loss value of S2,1 and S3,1 in frequency range 0.9-
In 1.5GHz, 3.15dB is respectively less than, therefore combiner has splendid insertion loss characteristic, insertion loss value is set compared to tradition
It is standby significantly to reduce.
As described in Figure 6, wherein S2,3 are connected by the input terminal that fisrt feature impedance connects with second feature impedance
Isolation loss between input terminal is analyzed by calculating, can obtained in frequency range 1.1-1.35GHz, S2,3 isolation
Loss value is within 29-32dB, in frequency range 0.9-1.5 GHz, S2,3 isolation loss value 29-39.154dB with
It is interior, therefore combiner has good isolation loss characteristic, the isolation loss value between input terminal is more than 29dB, therefore first is special
Signal segregation degree between the input terminal that the input terminal and second feature impedance that sign impedance is connected are connected is higher.
In a particular embodiment, the high-pass filter 20 include the first inductance L1, the second inductance L3, the 3rd inductance L5,
First capacitance C2, the second capacitance C4.
In a particular embodiment, the high-pass filter is L frequency range high-pass filters, and effect is to inhibit low-frequency range（Such as
FM is broadcasted）The interference of electromagnetic wave improves the saturated characteristic of the amplifier of rear end, specifically, high-pass filter uses capacitance and electricity
Feel the circuit design for circuit components, high-pass filter include the first inductance, the second inductance, the 3rd inductance, the first capacitance and
Second capacitance.
In a particular embodiment, one end of the first inductance L1 and one end phase of 20 and first capacitance C2 of directional coupler
Even, other end ground connection；The other end of the first capacitance C2 is connected with one end of one end of the second inductance L3 and the second capacitance C4；
The other end ground connection of the second inductance L3；The other end of the second capacitance C4 and one end of the 3rd inductance L5 and output terminal phase
Even；The other end ground connection of the 3rd inductance L5.
Capacitance in high-pass filter is designed using lumped parameter device, inductance using distributed constant device, wherein
Distributed constant device is microstrip line construction.During specifically used, the first inductance, the second inductance and the 3rd inductance are grounded.
It is analyzed by the performance to high-pass filter, respectively obtains high-pass filter reflection loss analysis chart, high pass
Filter insertion loss analysis chart.
In a particular embodiment, the combiner 10 can be attached with two input equipments simultaneously.
As shown in figure 8, the reflection loss for the input terminal that S1 is connected by the first capacitance, is analyzed by calculating, can obtained
In frequency range 0.6-1.8GHz, the reflection loss value for the input terminal that the first capacitance is connected is less than 32dB namely high pass is filtered
The reflection loss value of ripple device input terminal in frequency range 0.6-1.8GHz is less than 32dB.Since the capacitance in high-pass filter is adopted
It is designed using distributed constant device with lumped parameter device, inductance, therefore the reflection loss of input terminal can be greatly improved
Value.
As shown in figure 9, S1 is by inserting between the input terminal that the first capacitance connects and the output terminal that the second capacitance is connected
Enter loss, calculated by testing, in frequency range 0.6-1.8GHz, input terminal and the second capacitance institute that the first capacitance is connected
Reflection loss between the output terminal of connection is less than the insertion of 1dB namely high-pass filter in frequency range 0.6-1.8GHz
Loss value is less than 1dB, reduces the insertion loss of high-pass filter, the loss value during signal communication can be greatly lowered,
The working performance of radar can be improved in practical applications.
Since distribution ginseng may be employed in the circuit components in the signal synthetic apparatus of the passive submatrix antenna in the present invention
Number devices are designed, thus can by the use of the microstrip line of circuit board as partial circuit component, in the actual production process,
Signal synthetic apparatus can be integrated in one piece using on the substrate of F4B microwave materials, greatly reduce the volume of equipment, therefore
Signal synthetic apparatus integrally has the characteristics that small, light-weight, and its production cost is low, due to using printed circuit board (PCB) work
Skill, so electrical property batch uniformity is good, the reliability of device is higher, also allows for enterprise and is produced in enormous quantities.
In conclusion the invention discloses a kind of signal synthetic apparatus of passive submatrix antenna, wherein, the signal synthesis
Device includes：For the substrate of permanent circuit component；Combiner on the substrate is set；Determining on the substrate is set
To coupler；High-pass filter on the substrate is set；Input equipment passes sequentially through combiner, directional coupler, high pass
Wave filter is connected with output terminal；The material of the substrate is F4B microwave materials.The signal of the passive submatrix antenna of the present invention closes
Into device, it is that F4B microwave materials are used for permanent circuit component to use material, two letters inputted respectively using two sub- array antennas
Number technical solution integrated by combiner, and exported after passing sequentially through directional coupler, high-pass filter, with collection
Total parameter and the circuit structure of distributed constant device designed in conjunction, can effectively reduce insertion loss, improve interport isolation,
Distorted signals is avoided, and equipment integrally has the characteristics that small, light-weight, at low cost, reliability is high.
It should be appreciated that the application of the present invention is not limited to the above, it for those of ordinary skills, can
To be improved or converted according to the above description, all these modifications and variations should all belong to the guarantor of appended claims of the present invention
Protect scope.
Claims (6)
1. a kind of signal synthetic apparatus of passive submatrix antenna, which is characterized in that the signal synthetic apparatus includes：
For the substrate of permanent circuit component；
Combiner on the substrate is set；
Directional coupler on the substrate is set；
High-pass filter on the substrate is set；
Input equipment passes sequentially through combiner, directional coupler, high-pass filter and is connected with output terminal；
The material of the substrate is F4B microwave materials.
2. the signal synthetic apparatus of passive submatrix antenna according to claim 1, which is characterized in that the combiner includes
First resistor, second resistance, fisrt feature impedance, second feature impedance, third feature impedance, fourth feature impedance, the 5th is special
Levy impedance, sixth feature impedance, seventh feature impedance.
3. the signal synthetic apparatus of passive submatrix antenna according to claim 2, which is characterized in that the fisrt feature resistance
Anti- one end is connected with the first input equipment, and the other end is connected with one end of third feature impedance and one end of first resistor；Second
Characteristic impedance one end is connected with the second input equipment, the other end and one end of fourth feature impedance and the other end phase of first resistor
Even；The other end of the third feature impedance is connected with one end of one end of second resistance and fifth feature impedance；Described 4th
The other end of characteristic impedance is connected with one end of the other end of second resistance and sixth feature impedance；The fifth feature impedance
The other end is connected with one end of seventh feature impedance and the other end of sixth feature impedance；The other end of the seventh feature impedance
It is connected with directional coupler.
4. the signal synthetic apparatus of passive submatrix antenna according to claim 1, which is characterized in that the high-pass filter
Including the first inductance, the second inductance, the 3rd inductance, the first capacitance, the second capacitance.
5. the signal synthetic apparatus of passive submatrix antenna according to claim 4, which is characterized in that first inductance
One end is connected with one end of directional coupler and the first capacitance, other end ground connection；The other end of first capacitance and the second electricity
One end of sense is connected with one end of the second capacitance；The other end ground connection of second inductance；The other end of second capacitance with
One end of 3rd inductance is connected with output terminal；The other end ground connection of 3rd inductance.
6. the signal synthetic apparatus of passive submatrix antenna according to claim 1, which is characterized in that the combiner can be same
When be attached with two input equipments.
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| CN201711309579.XA CN108072862A (en) | 2017-12-11 | 2017-12-11 | A kind of signal synthetic apparatus of passive submatrix antenna |
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| CN201711309579.XA CN108072862A (en) | 2017-12-11 | 2017-12-11 | A kind of signal synthetic apparatus of passive submatrix antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112151929A (en) * | 2020-09-25 | 2020-12-29 | 绵阳天赫微波科技有限公司 | Single-ridge waveguide 4-path power combiner with coupling function |
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