CN104759349A - A device of eliminating fog and thick haze by utilization of large-power microwave electromagnetic waves - Google Patents

A device of eliminating fog and thick haze by utilization of large-power microwave electromagnetic waves Download PDF

Info

Publication number
CN104759349A
CN104759349A CN201510127056.8A CN201510127056A CN104759349A CN 104759349 A CN104759349 A CN 104759349A CN 201510127056 A CN201510127056 A CN 201510127056A CN 104759349 A CN104759349 A CN 104759349A
Authority
CN
China
Prior art keywords
yto
frequency
locked loop
resistance
electric capacity
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
CN201510127056.8A
Other languages
Chinese (zh)
Inventor
赵华
吕清
陈嘉兴
李韶华
靳慧龙
黄战平
孙军英
刘亚川
杨丽坤
刘金星
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.)
Hebei Normal University
Original Assignee
Hebei Normal University
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 Hebei Normal University filed Critical Hebei Normal University
Priority to CN201510127056.8A priority Critical patent/CN104759349A/en
Publication of CN104759349A publication Critical patent/CN104759349A/en
Pending legal-status Critical Current

Links

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

The invention relates to a device of eliminating fog and thick haze by utilization of large-power microwave electromagnetic waves. The device comprises a single chip computer U1, a D/A converter, a YTO main coil drive circuit, a tuned oscillator YTO, a frequency-doubled circuit, a front power amplifying circuit, a radio frequency drive module, an antenna, a reference frequency crystal oscillator U2, a quadruple frequency demultiplier U3, a phase locked loop circuit, a low-pass filter, a YTO secondary coil drive circuit, a keyboard and a display. The beneficial effects of the device are that: the frequency of the microwave electromagnetic waves can be adjusted conveniently to adapt to fog and thick haze particles of various diameters, and a novel method for eliminating fog and thick haze is provided for people.

Description

HIGH-POWERED MICROWAVES electromagnetic wave is utilized to eliminate the device of haze
Technical field
The present invention relates to a kind of device utilizing HIGH-POWERED MICROWAVES electromagnetic wave to eliminate haze, be applicable to elimination and the control of haze.
Background technology
China's atmospheric haze presents obvious ascendant trend in recent years, the origin cause of formation of a time atmospheric haze and the prevention and controls of haze is become to the focus of people's research.
Really, the discharge of automobile and industrial tail gas, the burning of fuel energy, the factor such as weather and landform is the main cause that haze is formed, but people do not recognize, the wireless communication system that contemporary society develops rapidly, radio data system, the radio wave that On Satellite-earth Microwave Communication system etc. uses has a certain impact to the formation of haze also tool, the communication base station gathered, the electromagnetic wave energy increased gradually in environment, capital causes the increase of suspended particulate matter concentration in air, if weather conditions are unfavorable for the suspended particulate substance that dispels in air in addition, so radio communication magnetic wave just may become one of factor increasing the weight of haze weather, therefore, the impact of research radio wave on atmospheric haze has practical meaning.
In addition, radio wave can change the charged characteristic, polarization characteristic etc. of small suspended particulate substance in air, therefore can play certain effect in the control of haze.Utilize electromagnetic wave that the suspended particulate substance in air can be made to assemble or sedimentation; By changing the electromagnetic environment of haze particle, the malignant bacteria entrained by suspended particulate substance and virus can also be made to obtain certain control, and then to preventing the disease brought by haze weather also to have certain positive effect.
Chinese patent discloses " a kind of sound wave that utilizes eliminates the method for haze " (application number: 201410089188.1), the method uses sound wave to eliminate haze device, this device forms primarily of signal generator, power amplifier and power supply, signal generator can produce the signal of telecommunication of certain frequency, the signal of telecommunication can amplify by power amplifier, loudspeaker can convert the electrical signal to acoustical signal, and power supply is responsible for power supply.Steam in air is along with acoustic wave vibrations, and droplet pools large water drop, and then forms rainwater, and the dust granules thing in air incorporates along with rainwater drops to ground in rainwater, and haze is eliminated fast.
The sound wave that above-mentioned patent application utilizes loudspeaker to send eliminates the dust granules in air, and as everyone knows, the highest frequency of sound wave is about 100KHz, and because sound wave frequency is lower, utilizing sound wave to eliminate haze can not realize.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of device utilizing HIGH-POWERED MICROWAVES electromagnetic wave to eliminate haze.
For solving the problems of the technologies described above adopted technical scheme be:
The present invention includes single-chip microcomputer U1, D/A converter, YTO main coil drive circuit, armatron YTO, two frequency multiplier circuits, front-located power amplifier circuit, radio-frequency driven module, antenna, reference frequency crystal oscillator U2, four-divider U3, phase-locked loop circuit, low pass filter, YTO secondary coil drive circuit, keyboard and display screen;
Described keyboard and display screen connect the corresponding interface of single-chip microcomputer U1 respectively; One tunnel of described single-chip microcomputer U1 exports the main coil meeting armatron YTO successively through D/A converter, YTO main coil drive circuit, the output of described armatron YTO connects the input of two frequency multiplier circuits and four-divider U3 respectively, the rf inputs of the output termination phase-locked loop circuit of described four-divider U3, the respective input of the output termination phase-locked loop circuit of described reference frequency crystal oscillator U2, the output of described phase-locked loop circuit connects the secondary coil of armatron YTO successively through low pass filter, YTO secondary coil drive circuit;
The output of described two frequency multiplier circuits connects antenna through preposition power amplifier, radio-frequency driven module successively.
The model of described single-chip microcomputer U1 is C8051F120, and the model of D/A converter is DAC7545, and the model of armatron YTO is Avantek S080-0655, and the model of four-divider U3 is HMC433.
Described reference frequency crystal oscillator U2 adopts high accuracy temperature compensation 10MHz crystal oscillator, and its model is 3225.
Described phase-locked loop circuit is made up of fractional frequency division digital phase-locked loop chip U4 and peripheral cell resistance R1-R6, electric capacity C1-C3; The input 6-8 pin of described fractional frequency division digital phase-locked loop chip U4,12 pin meet the I/O mouth U5 of single-chip microcomputer U1 respectively through resistance R1-R6, rf inputs 4 pin of described fractional frequency division digital phase-locked loop chip U4 connects the output of armatron YTO successively through resistance R2, electric capacity C2, four-divider U3, between 5 pin that described electric capacity C3 is connected on fractional frequency division digital phase-locked loop chip U4 and ground; The model of described fractional frequency division digital phase-locked loop chip U4 is LMX2485;
Described low pass filter is made up of electric capacity C4-C6, resistance R7-R8; Between output 1 pin that electric capacity C4 is connected on fractional frequency division digital phase-locked loop chip U4 and ground, in parallel with electric capacity C4 after resistance R7 connects with electric capacity C5, in parallel with electric capacity C4 after electric capacity C6 connects with resistance R8; Described YTO secondary coil drive circuit is made up of operational amplifier U6 and peripheral cell resistance R9-R11 thereof; Positive input 3 pin of operational amplifier U6 connects the node of electric capacity C6 and resistance R8 through resistance R9, resistance R10 is connected between reverse input end 2 pin of operational amplifier U6 and ground, resistance R11 is connected between the output of operational amplifier U6 and reverse input end 2 pin, the secondary coil of the output termination armatron YTO of operational amplifier U6; The model of described operational amplifier U6 is OP07.
The frequency of the microwave signal that described armatron YTO exports is 4-7GHz, and the power output of described front-located power amplifier circuit is 100W, and the power output of described radio-frequency driven module is 1500W.
Described radio-frequency driven module adopts state light B series of rows wave duct.
Operation principle of the present invention is as follows: the present invention utilizes microwave electromagnetic waves (about 10GHz) to bombard haze air, make solid particulate matter polarized charged wherein, and then attract each other or repel, and then be combined with steam, condense into the larger particle of volume by the particle of small volume thus be deposited to ground, or produce displacement and spread.
In addition, the communication base station that this device can utilize mobile communication to spread all over the world easily, therefore has advantageous advantage, need not arrange more website again on technology is implemented.Due to the haze composition that this device is for overhead, therefore can not impact existing GSM, and the mode that frequency range can be adopted to hide avoids communication frequency range.HIGH-POWERED MICROWAVES electromagnetic wave with sample application of installation launches towards overhead, has directionality requirement.
Beneficial effect of the present invention is as follows:
(1) this device by single-chip microcomputer and phase-locked loop circuit, can adjust microwave electromagnetic wave frequency, to adapt to the haze particle of various diameter, as PM2.5 and PM10 etc. easily.
(2) when using, arrange this device of multiple stage in a certain region, the antenna of each table apparatus adopts array arrangement, and adjusts the emission angle of each antenna, makes the electromagnetic wave of each antenna transmission produce same-phase and interferes, thus improve the effect eliminating haze.
(3) a kind of new method is provided for people eliminate haze.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present invention.
Fig. 2 is the circuit theory diagrams of phase-locked loop circuit and associated circuit thereof.
Fig. 3 is the circuit theory diagrams of pre-amplification circuit.
The sequential chart of three kinds of signals that Fig. 4 provides for phase-locked loop chip for single-chip microcomputer.
Fig. 5 is program flow diagram of the present invention.
Detailed description of the invention
From the embodiment shown in Fig. 1-3, it comprises single-chip microcomputer U1, D/A converter, YTO main coil drive circuit, armatron YTO, two frequency multiplier circuits, front-located power amplifier circuit, radio-frequency driven module, antenna, reference frequency crystal oscillator U2, four-divider U3, phase-locked loop circuit, low pass filter, YTO secondary coil drive circuit, keyboard and display screen;
Described keyboard and display screen connect the corresponding interface of single-chip microcomputer U1 respectively; One tunnel of described single-chip microcomputer U1 exports the main coil meeting armatron YTO successively through D/A converter, YTO main coil drive circuit, the output of described armatron YTO connects the input of two frequency multiplier circuits and four-divider U3 respectively, the rf inputs of the output termination phase-locked loop circuit of described four-divider U3, the respective input of the output termination phase-locked loop circuit of described reference frequency crystal oscillator U2, the output of described phase-locked loop circuit connects the secondary coil of armatron YTO successively through low pass filter, YTO secondary coil drive circuit;
The output of described two frequency multiplier circuits connects antenna through preposition power amplifier, radio-frequency driven module successively.
The model of described single-chip microcomputer U1 is C8051F120, and the model of D/A converter is DAC7545, and the model of armatron YTO is Avantek S080-0655, and the model of four-divider U3 is HMC433.
Described reference frequency crystal oscillator U2 adopts high accuracy temperature compensation 10MHz crystal oscillator, and its model is 3225.
Described phase-locked loop circuit is made up of fractional frequency division digital phase-locked loop chip U4 and peripheral cell resistance R1-R6, electric capacity C1-C3; The input 6-8 pin of described fractional frequency division digital phase-locked loop chip U4,12 pin meet the I/O mouth U5 of single-chip microcomputer U1 respectively through resistance R1-R6, rf inputs 4 pin of described fractional frequency division digital phase-locked loop chip U4 connects the output of armatron YTO successively through resistance R2, electric capacity C2, four-divider U3, between 5 pin that described electric capacity C3 is connected on fractional frequency division digital phase-locked loop chip U4 and ground; The model of described fractional frequency division digital phase-locked loop chip U4 is LMX2485;
Described low pass filter is made up of electric capacity C4-C6, resistance R7-R8; Between output 1 pin that electric capacity C4 is connected on fractional frequency division digital phase-locked loop chip U4 and ground, in parallel with electric capacity C4 after resistance R7 connects with electric capacity C5, in parallel with electric capacity C4 after electric capacity C6 connects with resistance R8; Described YTO secondary coil drive circuit is made up of operational amplifier U6 and peripheral cell resistance R9-R11 thereof; Positive input 3 pin of operational amplifier U6 connects the node of electric capacity C6 and resistance R8 through resistance R9, resistance R10 is connected between reverse input end 2 pin of operational amplifier U6 and ground, resistance R11 is connected between the output of operational amplifier U6 and reverse input end 2 pin, the secondary coil of the output termination armatron YTO of operational amplifier U6; The model of described operational amplifier U6 is OP07.
The frequency of the microwave signal that described armatron YTO exports is 4-7GHz, and the power output of described front-located power amplifier circuit is 100W, and the power output of described radio-frequency driven module is 1500W.
Described radio-frequency driven module adopts state light B series of rows wave duct.
In the present embodiment, the circuit theory diagrams of front-located power amplifier circuit as shown in Figure 3, in figure 3, G1-G3 is microwave isolator, its model is TGG-601A10-15GHz (SMA RF frequency microwave coaxial isolator), O1-O2 is microwave orthocoupler, its model is WILTRON660-D-13830 (2-40GHz 10DB), MMICI-MMIC3 is monolithic microwave amplifier integrated circuit, its model is AMMC-6120-W10, FET1-FET3 is unijunction transistor, and R12-R16 is resistance, C7-C12 is electric capacity, and L1-L10 is inductance.
Pre-amplification circuit shown in Fig. 3 exports as 33dBm.
In the present embodiment, radio-frequency driven module adopts domestic state light B series of rows wave duct, and power output can reach 1500W.
The operation principle of the present embodiment is as follows:
One, the desiging frequency divider of phase-locked loop chip U4 inside
Phase-locked loop chip U4 inside is provided with the fractional module number register of 22, program frequency division register has: RF_N (10:0) represents the integer part of N.F, RF_FN (21:0) represents the molecule of N.F fractional part, RF_FD (21:0) represents the denominator of N.F fractional part, and RF_R (5:0) is parametric frequency divider.In the present embodiment, require that output frequency is 8 ~ 14 GHz, frequency resolution is 100 Hz.Adopt 4 ~ 7 GHz YTO, add two frequency multiplier circuits in output stage, increase four-divider U3 at the rf inputs of phase-locked loop chip U4.Use frequency multiplication to control in phase-locked loop chip U4, RF_R is fixed as 1, RF_FD and is fixed as 4000000, then according to the following equation (1) calculates this device output frequency f 0;
……(1)
In formula (1) 4 2 is owing to adding four-divider in phase-locked loop circuit and final output adds two frequency multiplier circuits.Work as RF_N=50, during RF_FN=0, the frequency of phase-locked loop chip U4 is 1GHz, and this device output frequency is 8 GHz.Work as RF_N=87, during RF_FN=2000000, the frequency of phase-locked loop chip U4 is 1750 MHz, and this device output frequency is 14GHz.Resolution ratio 20MHz/4000000 × the 8=40Hz of this device, meets application requirement.The range of choice of RF_N is the range of choice of 50 ~ 87, RF_FN is 0 ~ 3999999.
Two, the digital phase discriminator of phase-locked loop chip U4 inside
This phase discriminator adopts fractional frequency division, and maximum phase demodulation frequency is limited to 50 MHz, the present embodiment actual use 20MHz.Design phase demodulation frequency needs compromise to consider, if phase demodulation frequency is too high, although phase noise can reduce, can extend locking time very large, frequency resolution performance reduces simultaneously.Be charge pump after this phase discriminator, it exports as high resistant electric current, through low pass filter output frequency control signal, then drives YTO to produce required frequency through YTO secondary coil drive circuit.
Three, armatron YTO and drive circuit thereof
Therefore YTO is widely used than the better performance of VCO owing to having in microwave apparatus.YTO inside has major and minor coil, correspondingly outside need main coil drive circuit and secondary coil drive circuit, and YTO main coil causes the wide variation of frequency, the minor variations of secondary coil band dynamic frequency, thus obtains better performance.The control voltage of main coil drive circuit calculates corresponding voltage by single-chip microcomputer by formula (3), then is arranged by DAC7545, in formula (2) kbe constant, determined by YTO characteristic.
                                  
…………………………………….. (2)
The secondary coil of YTO is the small variations in order to YTO output frequency, therefore the two-way frequency plot difference that secondary coil control voltage is exported by phase discriminator is controlled by the voltage after LPF again, thus reach the frequency of signal source output and have fixing phase relation with reference to crystal oscillator frequency, namely make phase lock loop locks in fixing frequency.
f 0for this device rate-adaptive pacemaker value (8-14GHz), that is f 0fixed, the reference frequency output of this device is just fixed, such as 10GHz.F is the frequency exported according to haze granular size, if f= f 0, be exactly so the output of this device setting.If ff 0, the V so calculated according to formula (3) above just can carry out frequency adjustment by single-chip microcomputer, the adjustable extent of the output frequency of the present embodiment in 8-14GHz scope, kdetermine according to phaselocked loop.
Four, Single-chip Controlling
Single-chip microcomputer U1 mainly realizes man-machine interface and phase lock control, and adopt C8051F120, its kernel is 8051 microcontrollers of 100 MIPS.The frequency values of input is obtained by SPI interface and man-machine interface chip ZLG7289, phase-locked loop chip U4(LMX2485 is calculated according to this frequency values) corresponding register value, then the three line configurations of LMX2485 are carried out by sequential shown in Fig. 4, LMX2485 carries out phase locked track automatically, is finally locked in the frequency values of setting.Frequency values and locking result are by display screen (ZLG7289) display.When LE signal is high level, the Data import being stored in shift register, to Internal latches, uses for phase-locked loop.
Single-chip microcomputer U1 calculates control voltage corresponding to YTO main coil for the frequency values of input, is exported by D/A converter (DAC7545).AD7545 is the univoltage control CMOS analog-digital chip of 12 bit resolution ratio, and reference voltage is set to 12 V, and single-chip microcomputer U1 can be controlled easily by parallel interface.
Man-machine interaction main circuit to realize information input, data display and warning function, ZLG7289 is adopted to realize, its inside comprises numeral method and drives and keyboard scan management circuit, can Direct driver 8 common cathode formula charactrons or 64 independent LED, management nearly 64 buttons can also be scanned simultaneously, adopt SPI universal serial bus and single-chip microcomputer U1 interface.This device frequency is 14GHz to the maximum, therefore adopts two ZLG7289 and connects realization.
Five, phaselocked loop (see figure 2)
YTO output frequency enters the radio frequency input of LMX2485 after carrying out four frequency divisions by four-divider U3.Two paths of signals, by inner phase discriminator phase demodulation, after charge pump exports, then goes control YTO secondary coil to drive by low pass filter and operational amplifier U6.
During specific implementation, because operating frequency is higher, circuit board needs more than four layers.
Six, the software of this device
The program flow diagram of this device as shown in Figure 5, by input through keyboard setpoint frequency f 0configuration LMX2485 fractional frequency division digital PLL circuit and D/A converter after calculating by single-chip microcomputer U1, then through the tracking lock of phase-locked loop circuit, make YTO export the frequency needed.

Claims (6)

1. utilize HIGH-POWERED MICROWAVES electromagnetic wave to eliminate a device for haze, it is characterized in that comprising single-chip microcomputer U1, D/A converter, YTO main coil drive circuit, armatron YTO, two frequency multiplier circuits, front-located power amplifier circuit, radio-frequency driven module, antenna, reference frequency crystal oscillator U2, four-divider U3, phase-locked loop circuit, low pass filter, YTO secondary coil drive circuit, keyboard and display screen;
Described keyboard and display screen connect the corresponding interface of single-chip microcomputer U1 respectively; One tunnel of described single-chip microcomputer U1 exports the main coil meeting armatron YTO successively through D/A converter, YTO main coil drive circuit, the output of described armatron YTO connects the input of two frequency multiplier circuits and four-divider U3 respectively, the rf inputs of the output termination phase-locked loop circuit of described four-divider U3, the respective input of the output termination phase-locked loop circuit of described reference frequency crystal oscillator U2, the output of described phase-locked loop circuit connects the secondary coil of armatron YTO successively through low pass filter, YTO secondary coil drive circuit;
The output of described two frequency multiplier circuits connects antenna through preposition power amplifier, radio-frequency driven module successively.
2. the device utilizing HIGH-POWERED MICROWAVES electromagnetic wave to eliminate haze according to claim 1, it is characterized in that the model of described single-chip microcomputer U1 is C8051F120, the model of D/A converter is DAC7545, the model of armatron YTO is Avantek S080-0655, and the model of four-divider U3 is HMC433.
3. the device utilizing HIGH-POWERED MICROWAVES electromagnetic wave to eliminate haze according to claim 2, it is characterized in that described reference frequency crystal oscillator U2 adopts high accuracy temperature compensation 10MHz crystal oscillator, its model is 3225.
4. the device utilizing HIGH-POWERED MICROWAVES electromagnetic wave to eliminate haze according to claim 3, is characterized in that described phase-locked loop circuit is made up of fractional frequency division digital phase-locked loop chip U4 and peripheral cell resistance R1-R6, electric capacity C1-C3; The input 6-8 pin of described fractional frequency division digital phase-locked loop chip U4,12 pin meet the I/O mouth U5 of single-chip microcomputer U1 respectively through resistance R1-R6, rf inputs 4 pin of described fractional frequency division digital phase-locked loop chip U4 connects the output of armatron YTO successively through resistance R2, electric capacity C2, four-divider U3, between 5 pin that described electric capacity C3 is connected on fractional frequency division digital phase-locked loop chip U4 and ground; The model of described fractional frequency division digital phase-locked loop chip U4 is LMX2485;
Described low pass filter is made up of electric capacity C4-C6, resistance R7-R8; Between output 1 pin that electric capacity C4 is connected on fractional frequency division digital phase-locked loop chip U4 and ground, in parallel with electric capacity C4 after resistance R7 connects with electric capacity C5, in parallel with electric capacity C4 after electric capacity C6 connects with resistance R8; Described YTO secondary coil drive circuit is made up of operational amplifier U6 and peripheral cell resistance R9-R11 thereof; Positive input 3 pin of operational amplifier U6 connects the node of electric capacity C6 and resistance R8 through resistance R9, resistance R10 is connected between reverse input end 2 pin of operational amplifier U6 and ground, resistance R11 is connected between the output of operational amplifier U6 and reverse input end 2 pin, the secondary coil of the output termination armatron YTO of operational amplifier U6; The model of described operational amplifier U6 is OP07.
5. the device utilizing HIGH-POWERED MICROWAVES electromagnetic wave to eliminate haze according to claim 4, the frequency that it is characterized in that the microwave signal that described armatron YTO exports is 4-7GHz, the power output of described front-located power amplifier circuit is 100W, and the power output of described radio-frequency driven module is 1500W.
6. the device utilizing HIGH-POWERED MICROWAVES electromagnetic wave to eliminate haze according to claim 5, is characterized in that described radio-frequency driven module adopts state light B series of rows wave duct.
CN201510127056.8A 2015-03-23 2015-03-23 A device of eliminating fog and thick haze by utilization of large-power microwave electromagnetic waves Pending CN104759349A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510127056.8A CN104759349A (en) 2015-03-23 2015-03-23 A device of eliminating fog and thick haze by utilization of large-power microwave electromagnetic waves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510127056.8A CN104759349A (en) 2015-03-23 2015-03-23 A device of eliminating fog and thick haze by utilization of large-power microwave electromagnetic waves

Publications (1)

Publication Number Publication Date
CN104759349A true CN104759349A (en) 2015-07-08

Family

ID=53641631

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510127056.8A Pending CN104759349A (en) 2015-03-23 2015-03-23 A device of eliminating fog and thick haze by utilization of large-power microwave electromagnetic waves

Country Status (1)

Country Link
CN (1) CN104759349A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105429597A (en) * 2015-11-26 2016-03-23 青岛盛嘉信息科技有限公司 Frequency signal generation circuit
CN105515573A (en) * 2015-12-02 2016-04-20 青岛盛嘉信息科技有限公司 Frequency signal source
CN105698557A (en) * 2016-04-14 2016-06-22 西安热工研究院有限公司 Ultrasonic mist removing and water saving system in cooling tower
CN114588726A (en) * 2022-01-30 2022-06-07 中国人民解放军63892部队 Remove injection system of electron beam and electromagnetic wave combination for haze

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
袁三男等: ""基于单片机和LMX2485的微波信号源发生器的设计"", 《微型机与应用》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105429597A (en) * 2015-11-26 2016-03-23 青岛盛嘉信息科技有限公司 Frequency signal generation circuit
CN105515573A (en) * 2015-12-02 2016-04-20 青岛盛嘉信息科技有限公司 Frequency signal source
CN105698557A (en) * 2016-04-14 2016-06-22 西安热工研究院有限公司 Ultrasonic mist removing and water saving system in cooling tower
CN114588726A (en) * 2022-01-30 2022-06-07 中国人民解放军63892部队 Remove injection system of electron beam and electromagnetic wave combination for haze

Similar Documents

Publication Publication Date Title
CN104759349A (en) A device of eliminating fog and thick haze by utilization of large-power microwave electromagnetic waves
CN104135301A (en) Radio frequency receiver and receiving method
CN105071804B (en) A kind of Low phase noise broadband microwave local oscillator source circuit and its implementation method
CN1747326A (en) Spread spectrum clock generator and method of generating spread spectrum clock
CN104880705B (en) A kind of frequency modulated continuous wave radar based on digital controlled oscillator
CN103762979B (en) Broadband frequency source for LTE channel simulator
CN101136631B (en) Frequency synthesizer and frequency synthesis method
CN109286373B (en) Ku frequency band down converter
CN110212929A (en) A kind of harmonics restraint transmitter
CN204465511U (en) A kind of program control frequency doubling device based on PLL phase-locked loop and frequency divider
CN114189254B (en) Ultra-low power consumption LoRa communication system and communication method based on single-frequency oscillator
CN201541235U (en) Microwave signal source module
CN204583483U (en) HIGH-POWERED MICROWAVES electromagnetic wave is utilized to eliminate the device of haze
CN207588840U (en) A kind of fast frequency-hopped locking phase locked source
CN206629051U (en) A kind of frequency synthesizer
CN1148887C (en) Radio circuit apparatus and radio communication equipment
CN208316704U (en) A kind of C-band radar high stable high isolation multiple signals source circuit
CN102062859A (en) Novel TCAS (Traffic Collision Avoidance System) local oscillator design method
CN206323367U (en) A kind of broadband agility scheme synthesizer
CN109412591A (en) A kind of thin stepping frequency synthesizer generation method of X-band and system
CN202720330U (en) P-waveband frequency synthesizer with fast frequency hopping, small frequency step, low phase noise, and low spurious level
CN208063177U (en) A kind of micromation broadband frequency source
CN209218066U (en) A kind of hybrid frequency synthesizer based on orthogonal modulation
CN208190632U (en) When frequency module
CN113992224A (en) Sub-6G-LTCC radio frequency front end microsystem module

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
EXSB Decision made by sipo to initiate substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20150708