CN103078595A - Low phase noise frequency scale switching, distributing and amplifying equipment - Google Patents

Low phase noise frequency scale switching, distributing and amplifying equipment Download PDF

Info

Publication number
CN103078595A
CN103078595A CN2012105864561A CN201210586456A CN103078595A CN 103078595 A CN103078595 A CN 103078595A CN 2012105864561 A CN2012105864561 A CN 2012105864561A CN 201210586456 A CN201210586456 A CN 201210586456A CN 103078595 A CN103078595 A CN 103078595A
Authority
CN
China
Prior art keywords
frequency standard
module
standard signal
signal
circuit
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
Application number
CN2012105864561A
Other languages
Chinese (zh)
Inventor
陈旭东
吕桂华
刘和平
刘锋
李和战
郭向阳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
63921 Troops of PLA
Original Assignee
63921 Troops of PLA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 63921 Troops of PLA filed Critical 63921 Troops of PLA
Priority to CN2012105864561A priority Critical patent/CN103078595A/en
Publication of CN103078595A publication Critical patent/CN103078595A/en
Pending legal-status Critical Current

Links

Images

Abstract

The embodiment of the invention discloses low phase noise frequency scale switching, distributing and amplifying equipment, belonging to the technical field of electronic information and solving the technical problem that frequency scale signals which support multipath output and are low in phase noise are difficult to realize in the prior art. The low phase noise frequency scale switching, distributing and amplifying equipment comprises an inputting and switching module, a distinguishing and amplifying module and a power supply module, wherein the inputting and switching module is used for receiving two paths of frequency scale signals and a switching control signal and outputting one path of frequency scale signal selected from the two paths of frequency scale signals according to the switching control signal; the distinguishing and amplifying module is used for receiving the frequency scale signal output by the inputting and switching module as well as distinguishing and amplifying the frequency scale signal into at least two paths of frequency scale signals; and the power supply module is used for supplying power to the inputting and switching module and the distinguishing and amplifying module. The low phase noise frequency scale switching, distributing and amplifying equipment can be applied to the application fields, such as weapon tests and aviations.

Description

A kind of low frequency marking of making an uproar is mutually switched the distribution multiplying arrangement
Technical field
The invention belongs to electronic information technical field, be specifically related to a kind of low frequency marking of making an uproar mutually and switch the distribution multiplying arrangement.
Background technology
Continuous progress along with electronic information technology, every field is increasing to the demand of frequency standard signal, required precision is also more and more higher, and particularly in the high-end applications such as weapon test, Aero-Space, the importance of low phase noise frequency standard signal highlights day by day.
High-precision frequency standard signal is to realize the unified important guarantee of split-second precision.The precision of the frequency standard signal of timing equipment frequency source (such as high stability crystal oscillator, atomic clock etc.) output is higher, and phase noise is lower, but generally only has the output of one road frequency standard signal owing to be subject to the restriction of load capacity, can not be directly used in multi-user system.Therefore, prior art is difficult to realize supporting multichannel output and the low frequency standard signal of phase noise.
Summary of the invention
The embodiment of the invention provides a kind of low frequency marking of making an uproar mutually to switch to distribute multiplying arrangement, has solved the technical problem that is difficult to realize to support the frequency standard signal that multichannel output and phase noise are low in the prior art.
For achieving the above object, embodiments of the invention adopt following technical scheme:
The frequency marking of should low making an uproar is mutually switched the distribution multiplying arrangement and is comprised:
The input handover module is used for receiving the two-way frequency standard signal, and switch-over control signal, and selects road frequency standard signal in the described two-way frequency standard signal to export according to described switch-over control signal;
Distinguish amplification module, be used for receiving the frequency standard signal of described input handover module output, and this frequency standard signal differentiation is enlarged at least two-way frequency standard signal;
Power module is used to the power supply of described input handover module and described differentiation amplification module.
Preferably, described input handover module comprises:
Input unit is used for receiving the two-way frequency standard signal, and described two-way frequency standard signal is carried out impedance matching and filtering processing;
Switch unit is used for receiving switch-over control signal, and selects road frequency standard signal in the described two-way frequency standard signal to export according to described switch-over control signal.
Preferably, described differentiation amplification module comprises two identical differentiations amplification submodules;
Each described differentiation is amplified submodule and is comprised the two-stage calculation amplifying circuit, and wherein the first order is 1 operational amplification circuit, and the second level is 12 operational amplification circuits.
Comprise operational amplifier LMH6702 in each described operational amplification circuit, and biasing circuit, feedback circuit, filter circuit and impedance matching circuit.
Further, this low frequency marking switching of making an uproar mutually distributes multiplying arrangement also to comprise:
The frequency marking monitoring modular be used for being input to the frequency standard signal of described input handover module, and the frequency standard signal of described differentiation amplification module output carries out power monitoring.
Preferably, comprise received signal strength indicator (Received Signal Strength Indicator, RSSI) circuit in the described frequency marking monitoring modular, be provided with logarithmic amplifier AD8310 in the described RSSI circuit.
Further, this low frequency marking switching of making an uproar mutually distributes multiplying arrangement also to comprise:
Light-emitting diode (Light Emitting Diode, LED) indicating module is for the operating state that shows described input handover module, described differentiation amplification module and described power module.
Preferably, be provided with four-operational amplifier LM324 in the described LED indicating module.
Preferably, the two-way frequency standard signal of described input handover module reception is Timing Signal.
Compared with prior art, technique scheme provided by the present invention has following advantage: the frequency standard signal that the two-way phase noise is low inputs to the input handover module, in the time of can one road frequency standard signal be unavailable therein, the switch-over control signal of being inputted according to the outside by the input handover module switches to another road frequency standard signal, to realize the Hot Spare in frequency standard signal source, improve the reliability of system.After frequency standard signal inputs to the differentiation amplification module from the input handover module, distinguish amplification module this frequency standard signal differentiation is enlarged at least lower frequency standard signal of two-way phase noise, with the output of support multichannel frequency standard signal, thereby multichannel output and the low frequency standard signal of phase noise have been realized supporting.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The low frequency marking of making an uproar mutually that Fig. 1 provides for embodiments of the invention 1 is switched the schematic diagram of the internal structure of distributing multiplying arrangement;
The low frequency marking of making an uproar mutually that Fig. 2 provides for embodiments of the invention 2 is switched the schematic diagram of the internal structure of distributing multiplying arrangement;
Fig. 3 is the schematic diagram of input handover module in the embodiments of the invention 2;
Fig. 4 distinguishes the schematic diagram that amplifies submodule in the embodiments of the invention 2;
Fig. 5 is the circuit diagram of operational amplification circuit in the embodiments of the invention 2;
Fig. 6 is the circuit diagram of RSSI circuit in the embodiments of the invention 2;
Fig. 7 is the circuit diagram of LED indicating module in the embodiments of the invention 2.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, the every other embodiment that those of ordinary skills obtain under the prerequisite of not paying creative work belongs to the scope of protection of the invention.
Embodiment 1:
As shown in Figure 1, the frequency marking switching of making an uproar mutually of hanging down that the embodiment of the invention provides distributes multiplying arrangement to comprise:
Input handover module 1 is used for receiving frequency standard signal A, the B that two-way is inputted, and switch-over control signal, and selects the output of one road frequency standard signal according to switch-over control signal from A, B two-way frequency standard signal.Preferably, frequency standard signal A and frequency standard signal B are the frequency standard signal of timing equipment frequency source output, and frequency range is 5MHz-20MHz, and power bracket is 4dBm-13dBm, the frequency standard signal phase noise of high stability crystal oscillator, the output of atomic clock equifrequent source is lower, has higher signal accuracy.
Differentiation amplification module 2 is used for receiving the frequency standard signal that input handover module 1 is exported, and this frequency standard signal differentiation is enlarged at least two-way frequency standard signal.
Power module 3 is used to above-mentioned input handover module 1 and distinguishes amplification module 2 power supplies.Power module 3 is selected the low ripple linear power supply, and the filtering of electric power output voltage process Π type filter circuit is processed backward input handover module 1 and distinguished amplification module 2 power supplies.
The low frequency marking of making an uproar mutually that the embodiment of the invention provides is switched the distribution multiplying arrangement, the frequency standard signal that the two-way phase noise is low inputs to input handover module 1, in the time of can one road frequency standard signal be unavailable therein, the switch-over control signal of being inputted according to the outside by the input handover module switches to another road frequency standard signal, to realize the Hot Spare in frequency standard signal source, improve the reliability of system.After frequency standard signal inputs to differentiation amplification module 2 from input handover module 1, distinguish amplification module 2 this frequency standard signal differentiation is enlarged at least lower frequency standard signal of two-way phase noise, with the output of support multichannel frequency standard signal, thereby multichannel output and the low frequency standard signal of phase noise have been realized supporting.
Embodiment 2:
Present embodiment is further expanding on the basis of embodiment 1, and as shown in Figures 2 and 3, the input handover module specifically comprises in the present embodiment:
Input unit 11 is used for receiving the two-way frequency standard signal, and carries out respectively impedance matching by 111 pairs of two-way frequency standard signals of impedance matching circuit wherein, carries out filtering by 112 pairs of two-way frequency standard signals of filtering treatment circuit and processes.
Switch unit 12 is used for receiving outside switch-over control signal, in the present embodiment with gate signal (Transistor-Transistor Logic, TTL) level as switch-over control signal.Be provided with dry-reed relay in the switch unit 12, select road frequency standard signal in the two-way frequency standard signal to export according to the switch-over control signal that receives by dry-reed relay.
Outside switch-over control signal input interface in frequency standard signal input interface in the above-mentioned input unit 11 and the switch unit 12 is insulation bayonet nut connector (Bayonet Nut Connector, BNC) female seat.
Further, such as Fig. 2 and shown in Figure 4, in the present embodiment, distinguish amplification module 2 and comprise two identical differentiations amplification submodules 20.Each is distinguished amplification submodule 20 and comprises the two-stage calculation amplifying circuit, and wherein the first order is 1 operational amplification circuit 2-1, and the second level is 12 operational amplification circuit 2-2.
Distinguish amplification module 2 with input between the handover module 1 adopt SMA(Sub-Miniature-A) interface is connected, input to the frequency standard signal of distinguishing amplification module 2 from input handover module 1 and be divided into two-way, input respectively two and distinguish amplification submodule 20, and distinguish to amplify to distinguish in submodule 20 at each and be enlarged into 12 road frequency standard signals, namely distinguish amplification module 2 and the frequency standard signal of input is distinguished altogether be enlarged into 24 road frequency standard signals.In addition, the output interface of 24 road frequency standard signals is insulation BNC female seat.
As shown in Figure 5, in distinguishing amplification submodule 20, each operational amplification circuit includes high-speed low-noise current feedback operational amplifier LMH6702, and peripheral biasing circuit, feedback circuit, filter circuit and the impedance matching circuit that is comprised of the low noise resistance capacitance.Wherein C1 is input filter capacitor; C2, R2, R3, R4 consist of biasing circuit; C23, R22, C25 consist of electric source filter circuit; C22, R24, R25 consist of feedback circuit; R26, C24 consist of the output matching filter circuit.Can change by the adjustment to the feedback circuit parameter power of output frequency standard signal in the discharge circuit, thereby realized differentiation and amplification to the frequency standard signal of input, under the prerequisite that does not change the frequency standard signal phase noise characteristic, be enlarged into 24 tunnel outputs by 1 tunnel input differentiation.
Further, as shown in Figure 2, the low frequency marking of making an uproar mutually in the embodiment of the invention is switched the distribution multiplying arrangement, also comprises frequency marking monitoring modular 4, be used for being input to 2 road frequency standard signals of input handover module 1, and 24 road frequency standard signals of distinguishing amplification module 2 outputs carry out power monitoring.Amplification module 2 is similar with distinguishing, and frequency marking monitoring modular 4 also comprises two identical frequency marking monitoring submodules 40.
Include received signal strength indicator (Received Signal Strength Indicator in each frequency marking monitoring submodule 40, RSSI) circuit, as shown in Figure 6, be provided with the multistage demodulating logarithmic amplifier AD8310 with high speed Voltage-output in the RSSI circuit, AD8310 can carry out demodulation output to direct current signal or the AC signal that is lower than 440MHz.Under the cooperation of peripheral circuit, AD8310 is Voltage-output with monitored frequency standard signal power transfer, and the RSSI circuit just can determine by the output voltage of monitoring AD8310 whether the watt level of monitored frequency standard signal satisfies the output requirement.In the present embodiment, the components and parts in AD8310 and the peripheral circuit thereof are all selected low-noise device.
Further, the low frequency marking of making an uproar mutually that the embodiment of the invention provides is switched the distribution multiplying arrangement, also comprise light-emitting diode (Light Emitting Diode, LED) indicating module 5, be used for the operating state that shows input handover module 1, distinguishes amplification module 2 and power module 3.
As shown in Figure 7, be provided with four-operational amplifier LM324 and accessory circuit thereof with differential input in the LED indicating module 5.LM324 compares the signal that receives with corresponding reference voltage, and realize the control of each LED light by comparative result, thereby realize 2 kinds of states of switch unit, the state of 2 road frequency standard signals input, state and the power supply status indication of totally 29 LED light of 24 road frequency standard signals output.
The low frequency marking of making an uproar mutually that the embodiment of the invention provides is switched the distribution multiplying arrangement, compare with embodiment 1, can monitor the frequency standard signal of input, output, and the state of each road frequency standard signal is shown by LED light, can improve real-time and the intuitive of system.In addition, in the present embodiment, each components and parts all adopt high accuracy, low components and parts of making an uproar mutually, and therefore the frequency standard signal of the multichannel output of making an uproar mutually very low can be provided.
Certainly, compare with embodiment 1, the power module in the present embodiment also is the power supply of frequency marking monitoring modular and LED indicating module except for input handover module and the power supply of differentiation amplification module.
The above; be the specific embodiment of the present invention only, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.

Claims (10)

1. the one kind low frequency marking of making an uproar is mutually switched the distribution multiplying arrangement, it is characterized in that, comprising:
The input handover module is used for receiving the two-way frequency standard signal, and switch-over control signal, and selects road frequency standard signal in the described two-way frequency standard signal to export according to described switch-over control signal;
Distinguish amplification module, be used for receiving the frequency standard signal of described input handover module output, and this frequency standard signal differentiation is enlarged at least two-way frequency standard signal;
Power module is used to the power supply of described input handover module and described differentiation amplification module.
2. multiplying arrangement according to claim 1 is characterized in that, also comprises:
The frequency marking monitoring modular be used for being input to the frequency standard signal of described input handover module, and the frequency standard signal of described differentiation amplification module output carries out power monitoring.
3. multiplying arrangement according to claim 1 and 2 is characterized in that, also comprises:
The LED indicating module is for the operating state that shows described input handover module, described differentiation amplification module and described power module.
4. multiplying arrangement according to claim 1 is characterized in that, described input handover module comprises:
Input unit is used for receiving the two-way frequency standard signal, and described two-way frequency standard signal is carried out impedance matching and filtering processing;
Switch unit is used for receiving switch-over control signal, and selects road frequency standard signal in the described two-way frequency standard signal to export according to described switch-over control signal.
5. multiplying arrangement according to claim 1 is characterized in that: described differentiation amplification module comprises that two identical differentiations amplify submodules;
Each described differentiation is amplified submodule and is comprised the two-stage calculation amplifying circuit, and wherein the first order is 1 operational amplification circuit, and the second level is 12 operational amplification circuits.
6. multiplying arrangement according to claim 5 is characterized in that: comprise operational amplifier LMH6702 in each described operational amplification circuit, and biasing circuit, feedback circuit, filter circuit and impedance matching circuit.
7. multiplying arrangement according to claim 2 is characterized in that: comprise the received signal strength indicator circuit in the described frequency marking monitoring modular.
8. multiplying arrangement according to claim 7 is characterized in that: be provided with logarithmic amplifier AD8310 in the described received signal strength indicator circuit.
9. multiplying arrangement according to claim 1 is characterized in that: be provided with four-operational amplifier LM324 in the described LED indicating module.
10. multiplying arrangement according to claim 1 is characterized in that: the two-way frequency standard signal that described input handover module receives is Timing Signal.
CN2012105864561A 2012-12-28 2012-12-28 Low phase noise frequency scale switching, distributing and amplifying equipment Pending CN103078595A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012105864561A CN103078595A (en) 2012-12-28 2012-12-28 Low phase noise frequency scale switching, distributing and amplifying equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012105864561A CN103078595A (en) 2012-12-28 2012-12-28 Low phase noise frequency scale switching, distributing and amplifying equipment

Publications (1)

Publication Number Publication Date
CN103078595A true CN103078595A (en) 2013-05-01

Family

ID=48155019

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012105864561A Pending CN103078595A (en) 2012-12-28 2012-12-28 Low phase noise frequency scale switching, distributing and amplifying equipment

Country Status (1)

Country Link
CN (1) CN103078595A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112071072A (en) * 2020-09-18 2020-12-11 成都锐美动力科技有限公司 Vehicle road driving state pre-judgment prompt system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2296399A1 (en) * 2008-06-30 2011-03-16 Panasonic Corporation Base station and communication method
CN102385334A (en) * 2011-09-14 2012-03-21 成都天奥电子股份有限公司 Distributed switching system of redundant timing system and switching method thereof
CN203014764U (en) * 2012-12-28 2013-06-19 中国人民解放军63921部队 Switching, distribution and amplification device of low-phase noise frequency standard signal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2296399A1 (en) * 2008-06-30 2011-03-16 Panasonic Corporation Base station and communication method
CN102385334A (en) * 2011-09-14 2012-03-21 成都天奥电子股份有限公司 Distributed switching system of redundant timing system and switching method thereof
CN203014764U (en) * 2012-12-28 2013-06-19 中国人民解放军63921部队 Switching, distribution and amplification device of low-phase noise frequency standard signal

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
吕桂华等: "一种低相位噪声频标分配放大器的设计实现", 《飞行器测控学报》, vol. 31, no. 4, 15 August 2012 (2012-08-15), pages 42 - 45 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112071072A (en) * 2020-09-18 2020-12-11 成都锐美动力科技有限公司 Vehicle road driving state pre-judgment prompt system

Similar Documents

Publication Publication Date Title
CN101620265B (en) Switching circuit and switching method for built-in antenna and external antenna of GPS
US9128164B2 (en) Battery monitoring apparatus
US9147937B2 (en) Multiple-antenna system
CN203643502U (en) Full-automatic microcurrent detection device
CN203014764U (en) Switching, distribution and amplification device of low-phase noise frequency standard signal
CN103078595A (en) Low phase noise frequency scale switching, distributing and amplifying equipment
CN207336630U (en) A kind of detection device of each branch current of High voltage series capacitor device compensation device
CN101784151B (en) Light source driving device
CN102751975B (en) PWM and AI multiplexing port and controller
US8797097B2 (en) Filtering device with low-pass filtering function and band-pass filtering function
CN109839980A (en) A kind of configurable constant-current source circuit of bipolar great power
CN111093491A (en) Detection circuit, electrocardio detection device and wearable equipment
CN216927045U (en) Detection circuit and polarity discrimination device
US20240003958A1 (en) Rapid detection device for multi-channel sporadic transient partial discharge
CN105223454A (en) The failure detector of gas insulated combined electric appliance equipment
CN102681449B (en) A kind of switching value input circuit of engineering machinery nonshared control unit
CN213149132U (en) Alternating current signal acquisition device
CN104201878A (en) Design method for optimizing filter to suppress switching noise
CN111162601A (en) Uninterrupted switching module and method for high-power direct-current power supply
CN208272937U (en) A kind of HFC amplifier multiband compatible circuit and HFC amplifier
CN101312351A (en) Power supply unit of low noise amplifier in mobile multimedia broadcast receiver
CN216052685U (en) Four-way analog input AD collector
CN207543087U (en) A kind of multi channel signals convert output device
CN214851197U (en) Multichannel ultra-wideband receiving front-end component
CN110048367A (en) A kind of overvoltage crowbar and rear end receiving device based on operational amplifier

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C12 Rejection of a patent application after its publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20130501