CN110361708A - A kind of microwave transmitting and receiving component self-checking circuit and method - Google Patents
A kind of microwave transmitting and receiving component self-checking circuit and method Download PDFInfo
- Publication number
- CN110361708A CN110361708A CN201910772790.8A CN201910772790A CN110361708A CN 110361708 A CN110361708 A CN 110361708A CN 201910772790 A CN201910772790 A CN 201910772790A CN 110361708 A CN110361708 A CN 110361708A
- Authority
- CN
- China
- Prior art keywords
- self
- receiving component
- microwave transmitting
- microwave
- transmitting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- G01S7/40—Means for monitoring or calibrating
- G01S7/4004—Means for monitoring or calibrating of parts of a radar system
- G01S7/4008—Means for monitoring or calibrating of parts of a radar system of transmitters
-
- 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
- G01S7/40—Means for monitoring or calibrating
- G01S7/4004—Means for monitoring or calibrating of parts of a radar system
- G01S7/4021—Means for monitoring or calibrating of parts of a radar system of receivers
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention discloses a kind of microwave transmitting and receiving component self-checking circuit and methods, the circuit includes the first directional coupler being sequentially connected in series, single-pole single-throw switch (SPST), adjustable attenuator and the second directional coupler, first directional coupler from the transmitting module of microwave transmitting and receiving component to draw a part of microwave signal, as self-test signal；On-off of the single-pole single-throw switch (SPST) to control the microwave transmitting and receiving component self-checking circuit；Adjustable attenuator guarantees the medium frequency output end mouth output reference power level signal or real power level signal of receiving module to carry out power level regulation or fixation to self-test signal；Second directional coupler receives in the receiving module of microwave transmitting-receiving subassembly to the self-test signal after the adjustable attenuator is regulated and controled or fixed.The problem of present invention solves in the case that radar system do not emit high-power signal, carries out self-test to microwave transmitting and receiving component operation state.This circuit realizes that simple, easily controllable, performance is stablized, and has stronger practicability and application prospect.
Description
Technical field
The present invention relates to microwave circuits fields, and in particular to a kind of microwave transmitting and receiving component self-checking circuit and method.
Background technique
Microwave transmitting and receiving component is in the front end of radar system, and the transmitting module in microwave transmitting and receiving component will be with modulation letter
After the microwave signal of breath is amplified to appropriate level, it is transmitted to antenna transmitting；Receiving module in microwave transmitting and receiving component, connects antenna
The faint microwave signal received, amplifies and after frequency-conversion processing, is transmitted to subsequent intermediate-frequency circuit.The transmission path of microwave signal needs
To pass through transmitting antenna, receiving antenna and exterior space.
As intelligent requirements are higher and higher, before radar system work, need to the transmitting of realization microwave signal and receive
Microwave transmitting and receiving component carry out automatic function detection, with guarantee radar system starting when, microwave transmitting and receiving component operation is normal.But
Before radar system work, the final power amplifier in transmitting module is inoperable, so microwave signal is via transmitting-receiving
The normal transmission path of antenna and exterior space cannot use, and need to additionally set up a self-checking circuit, pass as microwave signal
Original space propagation path is simulated in defeated path, completes transmission of the microwave modulated signal from transmitting module to receiving module.
Summary of the invention
The object of the present invention is to provide a kind of microwave transmitting and receiving component self-checking circuit and methods.By the self-checking circuit, micro-
A microwave signal transmission path is established between the transmitting module and receiving module of wave transmitting-receiving subassembly, is not emitted greatly in radar system
It in the case where power signal, is controlled by external signal, selects self-checking circuit work, reach microwave transmitting and receiving component according to itself electricity
Realize the purpose of working condition detection in road.
In order to achieve the above objectives, the present invention provides a kind of microwave transmitting and receiving component self-checking circuit, which includes successively going here and there
The first directional coupler, single-pole single-throw switch (SPST), adjustable attenuator and the second directional coupler of connection；First directional coupler
To draw a part of microwave signal from the transmitting module of microwave transmitting and receiving component, as self-test signal；The single-pole single-throw(SPST is opened
Close the on-off to control the microwave transmitting and receiving component self-checking circuit；The adjustable attenuator is to carry out power to self-test signal
Level regulation is fixed, guarantees the medium frequency output end mouth output reference power level signal or real power level letter of receiving module
Number；Second directional coupler is received to the self-test signal after the adjustable attenuator is regulated and controled or fixed into microwave transmitting and receiving
In the receiving module of component.
Most preferably, the first directional coupler and single-pole single-throw switch (SPST) are arranged in transmitting module, the second directional coupler
It is arranged in receiving module with adjustable attenuator.
Most preferably, single-pole single-throw switch (SPST) also passes through CA cable assembly and connect with adjustable attenuator, and CA cable assembly is to prevent
Self-test signal is interfered in transmission by outer signals.
Most preferably, CA cable assembly includes cable, the first connector that cable one end is arranged in, is arranged in the cable other end
The second connector, be arranged in single-pole single-throw switch (SPST) one end in transmitting module third connector and setting can in receiving module
4th connector of controlled attenuator one end, the first connector are connect with third connector, and the second connector and the 4th connector connect
It connects；Single-pole single-throw switch (SPST) passes through third connector and cable connection；Adjustable attenuator passes through the 4th connector and cable connection.
Most preferably, the first connector, the second connector, third connector and the 4th connector select RF coaxial to connect
Connect device.
Most preferably, cable selects half steel cable.
Most preferably, the first directional coupler and the second directional coupler select the monolithic microwave collection based on GaAs technology
At circuit chip.
Most preferably, adjustable attenuator selects the monolithic integrated microwave circuit chip based on GaAs technology.
Most preferably, single-pole single-throw switch (SPST) selects the monolithic integrated microwave circuit chip based on GaAs technology.
Wherein, the present invention also provides a kind of microwave transmitting and receiving components based on microwave transmitting and receiving component self-checking circuit from procuratorial organ
Method, method includes the following steps: step 1: before microwave transmitting and receiving component self-test, being closed single-pole single-throw switch (SPST), pass through the first coupling
Device is from drawing microwave signal all the way in transmitting module in microwave transmitting and receiving component, as self-test signal, input in adjustable attenuator into
Row power level regulates and controls and fixes the power level value of adjustable attenuator at this time；Step 2: the self-test signal after regulation is passed through the
Two couplers input receiving module, and export reference power level signal in receiving module medium frequency output end mouth；Step 3: microwave
When transmitting-receiving subassembly self-test, it is closed single-pole single-throw switch (SPST), the first coupler draws self-test signal all the way, passes through fixed power level value
Adjustable attenuator and the second coupler from receiving module medium frequency output end mouth export actual power level signal；Step 4: will be real
The power level value of border power level signal and the power level value of reference power level signal compare, and judge microwave transmitting and receiving component
It is whether working properly.
With the invention, can solve in the case that radar system do not emit high-power signal, the work of microwave transmitting and receiving component
Make the problem of state carries out self-test.
Compared with the existing technology, the invention has the following advantages:
1, the present invention establishes a transmission microwave self-test letter between the transmitting module and receiving module of microwave transmitting and receiving component
Number microwave transmitting and receiving component self-checking circuit, solve in the case that radar system do not emit high-power signal, microwave transmitting and receiving component
Working condition carry out self-test the problem of.
2, the present invention has rational design, and the intelligence degree of equipment can be improved, the escapable cost in maintenance process.
3, the present invention provides reference for the circuit design of other microwave transmitting and receiving components, enhances the real-time detection ability of component,
With stronger practicability and application prospect.
Detailed description of the invention
Fig. 1 is the schematic illustration of microwave transmitting and receiving component self-checking circuit provided by the invention；
Fig. 2 is the structural schematic diagram of microwave transmitting and receiving component self-checking circuit provided by the invention；
Fig. 3 is the schematic illustration that the first directional coupler provided by the invention accesses transmitting module；
Fig. 4 is the schematic illustration that the second directional coupler provided by the invention accesses receiving module.
Specific embodiment
Below in conjunction with attached drawing, by specific embodiment, the invention will be further described, these embodiments are merely to illustrate
The present invention is not limiting the scope of the invention.
As shown in Figure 1, the present invention is a kind of microwave transmitting and receiving component self-checking circuit 1, the transmitting of microwave transmitting and receiving component is set
In module 2 and receiving module 3, including the first directional coupler 4, single-pole single-throw switch (SPST) 5,6 and of adjustable attenuator being sequentially connected in series
Second directional coupler 7；First directional coupler 4 from the transmitting module 2 of microwave transmitting and receiving component to draw a part of microwave
Signal, as self-test signal；Single-pole single-throw switch (SPST) 5 is required according to external signal, controls the microwave transmitting and receiving component self-checking circuit 1
On-off, when self-checking circuit being needed to work, single-pole single-throw switch (SPST) 5 be connected, do not need self-checking circuit work when, single-pole single-throw switch (SPST)
5 disconnect, and work normally in order to avoid influencing the microwave transmitting and receiving component receiving module 3；It is adjustable to decline for the accuracy for guaranteeing self-test signal
Subtract device 6 to control to the power level to self-test signal, guarantees to export reference power electricity in 3 intermediate frequency port 22 of receiving module
Ordinary mail number, and the attenuation of fixedly adjustable attenuator 6, using the power level value of reference power level signal as foundation, in microwave
When transmitting-receiving subassembly needs self-test, whether accorded with by the power level value that detection medium frequency output end mouth exports real power level signal
The power level value for closing reference power level signal, judges whether microwave transmitting and receiving component works normally；Second directional coupler 7 is used
It is received in the receiving module 3 of microwave transmitting-receiving subassembly with the self-test signal after adjustable attenuator 6 is regulated and controled or fixed.
Wherein, as shown in Fig. 2, the first directional coupler 4 and single-pole single-throw switch (SPST) 5 are arranged in transmitting module 2, second is fixed
It is arranged in receiving module 3 to coupler 7 and adjustable attenuator 6, the position of single-pole single-throw switch (SPST) 5 and adjustable attenuator 6 can press
It needs to adjust.Single-pole single-throw switch (SPST) 5 is also connect by CA cable assembly 8 with adjustable attenuator 6, and CA cable assembly 8 is to prevent self-test from believing
Number transmission when by outer signals interfere.
CA cable assembly 8 include cable 9,9 one end of cable is set the first connector 10,9 other end of cable is set
Second connector 11 is arranged in the third connector 12 of 5 one end of single-pole single-throw switch (SPST) in transmitting module 2 and is arranged in receiving module
4th connector 13 of 6 one end of adjustable attenuator in 3.First connector 10 is connect with third connector 12, the second connector 11
It is connect with the 4th connector 13；Single-pole single-throw switch (SPST) 5 is connect by third connector 12 with cable 9；Adjustable attenuator 6 passes through the
Four connectors 13 are connect with cable 9.
First connector 10 at 8 both ends of CA cable assembly and the second connector 11 select SMA-J type radio frequency (RF) coaxial connector,
SMA-J type connector can be with the SMA-K of the third connector 12 on transmitting module and the 4th connector 13 on receiving module
Type matches, and it is firm to install, and need to singly guarantee that the port of transmitting module 2 and receiving module 3 is matched.If you need to consider that miniaturization is wanted
It asks, first connector 10 at 8 both ends of CA cable assembly and the second connector 11 select SMP-K type radio frequency (RF) coaxial connector, send out at this time
The third connector 12 and the 4th connector 13 penetrated in module 2 and receiving module 3 should select SMP-J type connector to match, SMP-K
Type connector will have mounting flange, to guarantee the reliability of CA cable assembly connection.Cable 9 selects half steel cable, and shielding is good, straight
Diameter is small, appropriately curved can shape；CA cable assembly also has certain insertion loss, needs when calculating entire self-test channel Insertion Loss
Consider together.
Transmitting module 2 includes frequency mixer 14, bandpass filter 15, driving amplifier 16 and the power being sequentially connected in series in Fig. 1
Amplifier 17,2 end of transmitting module are additionally provided with emission port 20.As shown in figure 3, the input terminal of the first directional coupler 4 connects
Connect the output end of driving amplifier 16 in transmitting module 2, power in the output end connection transmitting module 2 of the first directional coupler 4
The coupled end of the input terminal of amplifier 17, the first directional coupler 4 is connect with single-pole single-throw switch (SPST) 5, at this time the first directional couple
The self-test signal transmission direction of device 4 is consistent with microwave signal transmission direction in transmitting module 2.Use the first directional coupler
4 draw microwave signals, are because of smaller, the caused microwave signal change in gain of its insertion loss, to working in saturation state
Power amplifier, will not have an adverse effect.For convenience of installation, realize small form factor requirements, guarantee 4 and of the first directional coupler
Second directional coupler, 7 reliable performance is stablized, and the first directional coupler 4 and the second directional coupler 7 are selected and be based on GaAs work
The monolithic integrated microwave circuit mmic chip of skill；The selection of first directional coupler, 4 frequency range need to meet microwave transmitting and receiving component
It is required that the preferred 20dB of the degree of coupling, i.e., extract 1/100 power level from transmitting module 2, as self-test signal level, if work
Make that frequency range is wider, then to guarantee that fluctuation of the degree of coupling in working frequency range is small as far as possible, insertion loss is preferably no greater than 1dB, guarantees
The introducing of first directional coupler 4 hardly has an impact channel gain in transmitting module 2.
Receiving module 3 includes low-noise amplifier 19, frequency mixer 14 and the low-pass filter 18 being sequentially connected in series in Fig. 1, is connect
The head end for receiving module 3 is additionally provided with receiving port 21.As shown in figure 4, in receiving module 3 second directional coupler 7 connection side
Formula is different from the first directional coupler 4, low-noise amplifier 19 in the input terminal connection receiving module 3 of the second directional coupler 7
Input terminal, output end connect receiving module 3 receiving port 21, coupled end connect adjustable attenuator 6 output end, from
And after guaranteeing self-test signal by being coupled into receiving module 3, to 19 direction of low-noise amplifier transmit, without to receive day
Line transmission.The self-test signal transmission direction of second directional coupler 7 and microwave signal transmission direction phase in receiving module 3 at this time
Instead, it should be noted that the mounting means of the second directional coupler 7.Second directional coupler 7 selects the monolithic based on GaAs technology
Microwave integrated circuit mmic chip, the selection of frequency range need to meet microwave transmitting and receiving component requirement, that is, the preferred 30dB of the degree of coupling will
1/1000 power level of the self-test signal after decaying, is transmitted to receiving module 3, dump energy by the second directional coupler 7 from
The load absorption of band, the optional 20dB of the degree of coupling, the degree of coupling become smaller, and the insertion loss of mmic chip just will increase, and insertion loss is excellent
Choosing is not more than 1dB, since before low-noise amplifier 19, which can directly be converted as 3 noise coefficient of receiving module
Value added the second directional coupler 7 is placed in low noise if microwave transmitting and receiving component is stringent to noise coefficient index request
After amplifier 19 and one reasonably selects, but can not confirm whether low-noise amplifier work by self test mode
Normally.
6 adjustable attenuator of adjustable attenuator, 6 input terminal connects coaxial radio-frequency connector, preferably SMA-K type connector, output
The coupled end of second directional coupler 7 in end connection receiving module 3；In the assembling process of microwave transmitting and receiving component self-checking circuit 1,
Inevitably cause the insertion loss of each unit and the deviation of recommendation, it is however generally that all can be bigger than normal, to finally lead
Cause the variation of 3 IF output level of receiving module.For the deviation for compensating above-mentioned insertion loss, adjustable attenuator 6 is introduced, insertion is worked as
When loss becomes larger, reduce the attenuation of adjustable attenuator 6, when insertion loss becomes smaller, increases the attenuation of adjustable attenuator 6.
Adjustable attenuator 6 controls signal power size, has the attenuator of multiple and different attenuations to be composed, and selects and is based on GaAs work
The mmic chip of skill, the selection of frequency range need to meet microwave transmitting and receiving component requirement, have fourth gear attenuation may be selected, respectively
0dB, 1dB, 2dB and 3dB select suitable pad value access in microwave transmitting and receiving component self-checking circuit 1 as needed.In if
Frequency output level has strict demand to different temperatures environment, then can increase temperature compensation attenuator, to guarantee that medium frequency output end mouth has
Suitable level output.
5 input terminal of single-pole single-throw switch (SPST) connects the coupled end of the first directional coupler 4 of transmitting module 2, output end connection
Coaxial radio-frequency connector, preferably SMA-K type connector；Single-pole single-throw switch (SPST) 5 is formed in parallel by multiple PIN diodes, selects base
In the monolithic integrated microwave circuit chip of GaAs technology, the selection of frequency range need to meet microwave transmitting and receiving component requirement, isolation
Degree is preferably not less than 50dB, guarantees in the case where single-pole single-throw switch (SPST) 5 is in an off state, and it is logical that self-test signal will not be transmitted to reception
Road, and the normal work of receiving channel is influenced, insertion loss is preferably no greater than 1dB, and control mode preferably+5V/-5V is controlled, when
When switch control terminal input -5V, switching gate, as control terminal input+5V, switch OFF, therefore switching need to be by output+5V/-
The driver of 5V is used cooperatively.
The present invention also provides a kind of microwave transmitting and receiving component self checking methods based on microwave transmitting and receiving component self-checking circuit 1, should
Method is the following steps are included: step 1: before microwave transmitting and receiving component self-test, be closed single-pole single-throw switch (SPST) 5, by the first coupler 4 from
Microwave signal all the way is drawn in microwave transmitting and receiving component in transmitting module 2, as self-test signal, inputs in adjustable attenuator 6 and carries out
Power level regulates and controls and fixes the power level value of adjustable attenuator 6 at this time；Step 2: the self-test signal after regulation is passed through the
Two couplers 7 input receiving module 3, and export reference power level signal in 3 medium frequency output end mouth 22 of receiving module；Step 3:
When microwave transmitting and receiving component self-test, it is closed single-pole single-throw switch (SPST) 5, the first coupler 4 draws self-test signal all the way, passes through constant power
The adjustable attenuator 6 of level value and the second coupler 7 are believed from 3 medium frequency output end mouth 22 of receiving module output actual power level
Number；Step 4: the power level value of actual power level signal and the power level value of reference power level signal being compared, sentenced
Whether disconnected microwave transmitting and receiving component is working properly.
The working principle of the invention:
Before microwave transmitting and receiving component self-test, it is closed single-pole single-throw switch (SPST) 5, the first coupler 4 emits from microwave transmitting and receiving component
Microwave signal all the way is drawn in module 2, as self-test signal.Self-test signal, which inputs, carries out power level tune in adjustable attenuator 6
Self-test signal after regulation is then inputted receiving module 3 by the second coupler 7 by control, and in 3 medium frequency output end of receiving module
Mouth 22 exports reference power level signals, and the power level value of fixedly adjustable attenuator 6 is constant at this time.Microwave transmitting and receiving component self-test
When, it is closed single-pole single-throw switch (SPST) 5, the first coupler 4 draws self-test signal all the way, passes through the adjustable damping of fixed power level value
Device 6 and the second coupler 7 are from 3 medium frequency output end mouth 22 of receiving module output actual power level signal, by actual power level
The power level value of signal and the power level value of reference power level signal compare, and judge whether microwave transmitting and receiving component works just
Often.
In conclusion a kind of microwave transmitting and receiving component self-checking circuit of the present invention and method, solve radar system and do not emit greatly
In the case where power signal, the problem of working condition of microwave transmitting and receiving component carries out self-test.The realization of this system is simple, is easy to control
System, performance are stablized, and have stronger practicability and application prospect.
It is discussed in detail although the contents of the present invention have passed through above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read above content, for of the invention
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (10)
1. a kind of microwave transmitting and receiving component self-checking circuit, which is characterized in that including the first directional coupler, the hilted broadsword list being sequentially connected in series
Throw switch, adjustable attenuator and the second directional coupler；First directional coupler is to the transmitting from microwave transmitting and receiving component
A part of microwave signal is drawn in module, as self-test signal；The single-pole single-throw switch (SPST) is to control the microwave transmitting and receiving group
The on-off of part self-checking circuit；The adjustable attenuator guarantees to receive to carry out power level regulation or fixation to self-test signal
The medium frequency output end mouth output reference power level signal or real power level signal of module；Second directional coupler is used
It is received in the receiving module of microwave transmitting-receiving subassembly with the self-test signal after the adjustable attenuator is regulated and controled or fixed.
2. microwave transmitting and receiving component self-checking circuit as described in claim 1, which is characterized in that first directional coupler and institute
It states single-pole single-throw switch (SPST) to be arranged in the transmitting module, second directional coupler and the adjustable attenuator are arranged in institute
It states in receiving module.
3. microwave transmitting and receiving component self-checking circuit as claimed in claim 2, which is characterized in that the single-pole single-throw switch (SPST) also passes through
CA cable assembly is connect with the adjustable attenuator.
4. microwave transmitting and receiving component self-checking circuit as claimed in claim 3, which is characterized in that the CA cable assembly include cable,
First connector of cable one end is set, the second connector that the cable other end is set, is arranged in the transmitting module
The third connector of single-pole single-throw switch (SPST) one end and the 4th connector that adjustable attenuator one end in the receiving module is set；
First connector is connect with the third connector, and second connector is connect with the 4th connector；The list
Monopole single throw switch passes through third connector and cable connection；The adjustable attenuator passes through the 4th connector and cable connection.
5. microwave transmitting and receiving component self-checking circuit as claimed in claim 4, which is characterized in that first connector, second connect
It connects device, third connector and the 4th connector and selects radio frequency (RF) coaxial connector.
6. microwave transmitting and receiving component self-checking circuit as claimed in claim 4, which is characterized in that the cable selects half steel cable.
7. microwave transmitting and receiving component self-checking circuit as described in claim 1, which is characterized in that first directional coupler and
Two directional couplers select the monolithic integrated microwave circuit chip based on GaAs technology.
8. microwave transmitting and receiving component self-checking circuit as described in claim 1, which is characterized in that the adjustable attenuator selection is based on
The monolithic integrated microwave circuit chip of GaAs technology.
9. microwave transmitting and receiving component self-checking circuit as described in claim 1, which is characterized in that the single-pole single-throw switch (SPST) selects base
In the monolithic integrated microwave circuit chip of GaAs technology.
10. a kind of microwave transmitting and receiving component self checking method, this method is based on microwave transmitting and receiving component self-test electricity as described in claim 1
It realizes on road, which comprises the following steps:
Step 1: before microwave transmitting and receiving component self-test, single-pole single-throw switch (SPST) is closed, through the first coupler from microwave transmitting and receiving component
Microwave signal all the way is drawn in transmitting module, as self-test signal, is inputted in adjustable attenuator and is carried out power level regulation and consolidate
The power level value of fixed adjustable attenuator at this time；
Step 2: the self-test signal after regulation being inputted into receiving module by the second coupler, and in receiving module medium frequency output end
Mouth output reference power level signal；
Step 3: when microwave transmitting and receiving component self-test, being closed single-pole single-throw switch (SPST), the first coupler is drawn self-test signal all the way, passed through
The adjustable attenuator of fixed power level value and the second coupler export actual power level from receiving module medium frequency output end mouth
Signal；
Step 4: the power level value of actual power level signal and the power level value of reference power level signal being compared, sentenced
Whether disconnected microwave transmitting and receiving component is working properly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910772790.8A CN110361708A (en) | 2019-08-21 | 2019-08-21 | A kind of microwave transmitting and receiving component self-checking circuit and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910772790.8A CN110361708A (en) | 2019-08-21 | 2019-08-21 | A kind of microwave transmitting and receiving component self-checking circuit and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110361708A true CN110361708A (en) | 2019-10-22 |
Family
ID=68224814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910772790.8A Pending CN110361708A (en) | 2019-08-21 | 2019-08-21 | A kind of microwave transmitting and receiving component self-checking circuit and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110361708A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111162816A (en) * | 2019-12-15 | 2020-05-15 | 扬州船用电子仪器研究所(中国船舶重工集团公司第七二三研究所) | High-isolation interference system shared by transmitting and receiving antennas |
| CN111781567A (en) * | 2020-05-07 | 2020-10-16 | 绵阳市耐特电子实业有限责任公司 | T/R module with receiving and transmitting integrated self-diagnosis function |
| CN112217536A (en) * | 2020-11-30 | 2021-01-12 | 成都泰格微电子研究所有限责任公司 | Radio frequency front end of satellite ground station and self-checking method thereof |
| CN114966582A (en) * | 2022-07-29 | 2022-08-30 | 成都市克莱微波科技有限公司 | Microwave transceiving assembly self-checking method and system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004064003A1 (en) * | 2003-01-08 | 2004-07-29 | Envirotainer Ab | An electronic device detects and deactivates proximy electronic equipment of an area having restrictions for the use |
| CN201600448U (en) * | 2010-01-22 | 2010-10-06 | 南京誉葆科技有限公司 | MWW (millimeter wave) coherent seeker front end device |
| CN201600449U (en) * | 2009-12-30 | 2010-10-06 | 南京誉葆科技有限公司 | Front end device for integrated microwave altimeter |
| CN202135133U (en) * | 2011-06-30 | 2012-02-01 | 上海雷迪埃电子有限公司 | Test apparatus of self test of radio frequency power |
| CN103064070A (en) * | 2013-01-07 | 2013-04-24 | 中国工程物理研究院电子工程研究所 | Monitoring structure and method of single pulse radar system self-checking and condition parameter |
| CN204031163U (en) * | 2014-07-18 | 2014-12-17 | 南京誉葆科技有限公司 | High-power millimeter wave transceiving assembly |
| CN104459301A (en) * | 2014-11-24 | 2015-03-25 | 江西洪都航空工业集团有限责任公司 | Transmitting power self-detecting device for transmitting device |
| CN205374734U (en) * | 2015-12-04 | 2016-07-06 | 安徽蓝盾光电子股份有限公司 | Speed measuring radar system with self -checking function |
| CN106383371A (en) * | 2016-08-30 | 2017-02-08 | 上海太易检测技术有限公司 | Self-check control method of metal detector |
-
2019
- 2019-08-21 CN CN201910772790.8A patent/CN110361708A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004064003A1 (en) * | 2003-01-08 | 2004-07-29 | Envirotainer Ab | An electronic device detects and deactivates proximy electronic equipment of an area having restrictions for the use |
| CN201600449U (en) * | 2009-12-30 | 2010-10-06 | 南京誉葆科技有限公司 | Front end device for integrated microwave altimeter |
| CN201600448U (en) * | 2010-01-22 | 2010-10-06 | 南京誉葆科技有限公司 | MWW (millimeter wave) coherent seeker front end device |
| CN202135133U (en) * | 2011-06-30 | 2012-02-01 | 上海雷迪埃电子有限公司 | Test apparatus of self test of radio frequency power |
| CN103064070A (en) * | 2013-01-07 | 2013-04-24 | 中国工程物理研究院电子工程研究所 | Monitoring structure and method of single pulse radar system self-checking and condition parameter |
| CN204031163U (en) * | 2014-07-18 | 2014-12-17 | 南京誉葆科技有限公司 | High-power millimeter wave transceiving assembly |
| CN104459301A (en) * | 2014-11-24 | 2015-03-25 | 江西洪都航空工业集团有限责任公司 | Transmitting power self-detecting device for transmitting device |
| CN205374734U (en) * | 2015-12-04 | 2016-07-06 | 安徽蓝盾光电子股份有限公司 | Speed measuring radar system with self -checking function |
| CN106383371A (en) * | 2016-08-30 | 2017-02-08 | 上海太易检测技术有限公司 | Self-check control method of metal detector |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111162816A (en) * | 2019-12-15 | 2020-05-15 | 扬州船用电子仪器研究所(中国船舶重工集团公司第七二三研究所) | High-isolation interference system shared by transmitting and receiving antennas |
| CN111781567A (en) * | 2020-05-07 | 2020-10-16 | 绵阳市耐特电子实业有限责任公司 | T/R module with receiving and transmitting integrated self-diagnosis function |
| CN111781567B (en) * | 2020-05-07 | 2024-01-30 | 绵阳市耐特电子实业有限责任公司 | T/R module with transceiver integrated self-diagnosis function |
| CN111781567B9 (en) * | 2020-05-07 | 2024-04-02 | 绵阳市耐特电子实业有限责任公司 | T/R module with transceiver integrated self-diagnosis function |
| CN112217536A (en) * | 2020-11-30 | 2021-01-12 | 成都泰格微电子研究所有限责任公司 | Radio frequency front end of satellite ground station and self-checking method thereof |
| CN112217536B (en) * | 2020-11-30 | 2024-03-08 | 成都泰格微电子研究所有限责任公司 | Radio frequency front end of satellite ground station and self-checking method thereof |
| CN114966582A (en) * | 2022-07-29 | 2022-08-30 | 成都市克莱微波科技有限公司 | Microwave transceiving assembly self-checking method and system |
| CN114966582B (en) * | 2022-07-29 | 2022-11-11 | 成都市克莱微波科技有限公司 | Microwave transceiving assembly self-checking method and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110361708A (en) | A kind of microwave transmitting and receiving component self-checking circuit and method | |
| CN201600448U (en) | MWW (millimeter wave) coherent seeker front end device | |
| EP0923811B1 (en) | Circulator usage in time division duplex radios | |
| WO2017197954A1 (en) | Low-noise power amplifier used for satellite navigation and time service, and method for use | |
| CN109375176B (en) | Transmitter power amplifier module | |
| CN205812005U (en) | A kind of Five-channel millimeter wave transceiving assembly | |
| CN208401840U (en) | A kind of millimeter wave transceiving device | |
| CN107707264A (en) | Power detection feedback circuit and method | |
| CN106571850A (en) | Bidirectional amplifier of TDD mode | |
| CN111211805A (en) | Balanced radio frequency front end receiving and transmitting circuit, system and control method thereof | |
| CN106304304A (en) | Rfid transmissions Poewr control method and device | |
| CN106209149B (en) | A kind of radio circuit and mobile terminal | |
| US5913154A (en) | VSWR control technique for terminal products with linear modulation | |
| CN108761413B (en) | Radio frequency switch protection device and method for high-power RCS test | |
| CN210780780U (en) | Balanced radio frequency front end receiving and transmitting circuit and system | |
| CN109257064A (en) | A kind of double antenna RF front-end module | |
| US5006812A (en) | Power amplifier with built-in test circuit | |
| CN201957009U (en) | Multi-channel integrated equiphase sum-and-difference receiving device | |
| CN205377863U (en) | Millimeter wave transceiver module | |
| CN109633617B (en) | Millimeter wave receiving and dispatching front end based on single-channel target information extraction | |
| CN208386538U (en) | A kind of mm wave RF receive-transmit system | |
| CN205374730U (en) | Ku wave band receiving and dispatching subassembly | |
| CN113221591A (en) | Carrier leakage eliminating device for ultrahigh frequency radio frequency identification | |
| CN217880336U (en) | Carrier leakage eliminating device for high-power ultrahigh frequency radio frequency identification | |
| CN107146956A (en) | Antenna element and MIMO antenna system using codebook |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20191022 |