CN106130593B - A kind of double reception microwave frequency changer circuit and microwave converter - Google Patents
A kind of double reception microwave frequency changer circuit and microwave converter Download PDFInfo
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- CN106130593B CN106130593B CN201610495252.5A CN201610495252A CN106130593B CN 106130593 B CN106130593 B CN 106130593B CN 201610495252 A CN201610495252 A CN 201610495252A CN 106130593 B CN106130593 B CN 106130593B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/401—Circuits for selecting or indicating operating mode
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The present invention is suitable for microwave regime, provides a kind of double reception microwave frequency changer circuit and microwave converter, the circuit include：First feed receiving unit generates the first radiofrequency signal for receiving, amplifying the first feed signal；Second feed receiving unit generates the second radiofrequency signal for receiving, amplifying the second feed signal；Filter unit, for being filtered to first or second radiofrequency signal；Mixing unit realizes down conversion process for filtered radiofrequency signal to be mixed with local frequency, generates intermediate-freuqncy signal and is supplied to receiver；Switch control unit is used for switching control the first feed receiving unit and the second feed receiving unit, receives the first radiofrequency signal or the second radiofrequency signal with selection.The present invention switches the reception of the first feed and the second feed by switch control unit, is arranged with realizing while receiving two satellite-signals without conversion frequency, and no signal interference, signal are mutually gone here and there between easy to operate and received two satellite-signals of guarantee.
Description
Technical field
The invention belongs to microwave regime more particularly to a kind of double reception microwave frequency changer circuits and microwave converter.
Background technique
As the development of current satellite science and technology and quantity are increasing, the angle of satellite is become closer to, such as Europe ground
Area's satellite：13 ° of Hotbird, 19.3 ° of ASTRA, 19.2 ° of ASTRA, 23.5 ° of ASTRA etc., user is frequently necessary to defend multiple
Switch between star signal and receives.
However current microwave converter can only receive the signal of a satellite, if user wants to receive another satellite letter
Number need to readjust the setting such as satellite antenna angle elevation angle, it is complicated for operation, cumbersome, it is unable to satisfy user while receiving multiple defend
The demand of star.
Summary of the invention
The embodiment of the present invention is designed to provide a kind of double reception microwave frequency changer circuit, it is intended to solve existing microwave and become
The problem of frequency circuit can only receive a feed signal, cannot achieve while receiving multiple satellite-signals.
The embodiments of the present invention are implemented as follows, a kind of double reception microwave frequency changer circuit, and the circuit includes：
First feed receiving unit for receiving the first feed signal, and polarizes to the first feed signal, is put
Big processing, generates the first radiofrequency signal；
Second feed receiving unit for receiving the second feed signal, and polarizes to the second feed signal, is put
Big processing, generates the second radiofrequency signal；
Filter unit, for being filtered to first or second radiofrequency signal, the first, second input of the filter unit
End is connect with the output end of the first, second feed receiving unit respectively；
Mixing unit realizes down conversion process for filtered radiofrequency signal to be mixed with local frequency, generates intermediate frequency letter
Number it is supplied to receiver, the input terminal of the mixing unit is connect with the output end of the filter unit, the mixing unit
Power end is connect with the feeder ear of the first, second feed receiving unit simultaneously, the output end of the mixing unit and reception
Machine connection；
Switch control unit is used for switching control the first feed receiving unit and the second feed receiving unit, is connect with selection
Receive the first radiofrequency signal or the second radiofrequency signal, the first, second output end of the switch control unit respectively with described first,
The switching control end of second feed receiving unit connects, and the control terminal of the switch control unit is connect with receiver.
The another object of the embodiment of the present invention is, provides a kind of microwave change including above-mentioned double reception microwave frequency changer circuit
Frequency device.
The embodiment of the present invention switches the reception of the first feed and the second feed by switch control unit, to realize while connect
Two satellite-signals are received without adjusting antenna setting, without re-searching for signal, easy to operate and received two of guarantee is defended
No signal interference, signal are mutually gone here and there between star signal.
Detailed description of the invention
Fig. 1 is the structure chart of double reception microwave frequency changer circuit provided in an embodiment of the present invention；
Fig. 2 is the exemplary circuit of the first feed receiving unit in double reception microwave frequency changer circuit provided in an embodiment of the present invention
Structure chart；
Fig. 3 is filter unit in double reception microwave frequency changer circuit provided in an embodiment of the present invention, mixing unit and switching control
The exemplary block diagram of unit processed.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
Not constituting a conflict with each other can be combined with each other.
The embodiment of the present invention switches the reception of the first feed and the second feed by switch control unit, to realize while connect
It receives two satellite-signals to be arranged without conversion frequency, no signal is dry between easy to operate and received two satellite-signals of guarantee
It disturbs, signal is mutually gone here and there.
Fig. 1 shows the structure of the double reception microwave frequency changer circuit of first embodiment of the invention offer, for ease of description,
Only the parts related to the present invention are shown.
As an embodiment of the present invention, which can be applied in various microwave converters.
The double reception microwave frequency changer circuit includes：
First feed receiving unit 11 for receiving the first feed signal, and polarizes to the first feed signal, is amplified
Processing generates the first radiofrequency signal；
Second feed receiving unit 12 for receiving the second feed signal, and polarizes to the second feed signal, is amplified
Processing generates the second radiofrequency signal；
Filter unit 13, for being filtered to first or second radiofrequency signal, the first, second input of filter unit 13
End is connect with the output end of the first, second feed receiving unit respectively；
Mixing unit 14 realizes down conversion process for filtered radiofrequency signal to be mixed with local frequency, generates intermediate frequency
Signal is supplied to receiver, and the input terminal of mixing unit 14 is connect with the output end of filter unit 13, the power supply of mixing unit 14
End is connect with the feeder ear of the first, second feed receiving unit simultaneously, and the output end of mixing unit 14 is connect with receiver；
Switch control unit 15 is used for the first feed of switching control receiving unit 11 and the second feed receiving unit 12, with
Selection receives the first radiofrequency signal or the second radiofrequency signal, the first, second output end of switch control unit 15 respectively with first,
The switching control end of second feed receiving unit connects, and the control terminal of switch control unit 15 is connect with receiver.
Due to the local-oscillator circuit and two differences of two different frequencies of microwave converter of local oscillators double for dual polarization
Polarized high-frequency amplifier circuit does not allow to work at the same time, and therefore, the embodiment of the present invention is held by switch control unit 15
Switching of the row to the first feed receiving unit 11 and the second feed receiving unit 12.
Preferably, local oscillator switching can use the switching chip of four arithmetic units and peripheral components to build.
Superposition has 22KHz pulse signal " envelope " in+13/18V operating voltage of microwave converter (receiver), by cutting
It changes control unit 15 and a feed receiving unit (the chip ZXNB4200 especially in power supply module 113) generates 22KHz pulse
Signal, inputs to receiver, and the 0-22kHz pulse of receiver output selects its low, high local oscillator respectively, while going back usable satellite
Horizontally or vertically polarized satellite-signal, realization Ku wave band program Whole frequency band receive for+13/18V voltage the switching of television receiver.
Since the selectivity that switch control unit 15 controls the first, second feed receives, the first, second feed is received
Only one works unit, and when the work of the first feed receiving unit 11, the second feed receiving unit 12 is automatically closed, because
This can accomplish that two satellite signal receivings are anti-tampering.
The embodiment of the present invention switches the reception of the first feed and the second feed by switch control unit 15, to realize simultaneously
Two satellite-signals are received without adjusting antenna setting, without re-searching for signal, realize the microwave frequency conversion of one pot of double star
Device, it is easy to operate and guarantee that no signal interference, signal are mutually gone here and there between received two satellite-signals.
Fig. 2 shows the first feed receiving unit units in double reception microwave frequency changer circuit provided in an embodiment of the present invention
Exemplary circuit structure, for ease of description, only the parts related to the present invention are shown.
As an embodiment of the present invention, the circuit structure phase of the first feed receiving unit 11 and the second feed receiving unit 12
Together, include：
Waveguide pipe 110, for being horizontal radiofrequency signal I-PIN and vertical radiofrequency signal L- by received feed polarizations
PIN；
Level-one RF Amplifier Module 111 is generated for amplifying processing to horizontal radiofrequency signal and vertical radiofrequency signal
Primary plateaus amplified signal and primary vertical amplified signal, the horizontal input terminal of level-one RF Amplifier Module 111 and vertical input
End is connect with the horizontal output end of waveguide pipe 110 and vertical output end respectively；
Second level RF Amplifier Module 112 generates high for amplifying processing again to the amplified radiofrequency signal of level-one
The input terminal of the radiofrequency signal of intensity, second level RF Amplifier Module 112 is connect with the output end of level-one RF Amplifier Module 111,
The output end of second level RF Amplifier Module 112 is the output end of the first feed receiving unit 11；
Power supply module 113, for providing supply voltage for level-one, second level RF Amplifier Module 112, power supply module 113
Feeder ear group is correspondingly connected with level-one, the power end group of second level RF Amplifier Module 112, and the power end of power supply module 113 is the
The feeder ear of one feed receiving unit 11, the control terminal of power supply module 113 are the switching control end of the first feed receiving unit 11.
The present embodiment is only illustrated by taking the first feed receiving unit 11 as an example, the circuit knot of the second feed receiving unit 12
Structure is identical with the first feed receiving unit 11, and wherein the power end group of level-one RF Amplifier Module 111 includes the first power supply
End, second source end, third power end and the 4th power end, the power end group of second level RF Amplifier Module 112 include the 5th electricity
Source and the 6th power end；
Level-one RF Amplifier Module 111 includes：
Resistance R1, resistance R2, resistance R3, resistance R4, capacitor C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5, capacitor
C6, capacitor C11, capacitor C12, first switch tube Q1, second switch Q2；
One end of resistance R1 is that the 4th power end of level-one RF Amplifier Module 111 is grounded by capacitor C11, resistance R1's
The other end is that the vertical input terminal of level-one RF Amplifier Module 111 is connect with the control terminal of first switch tube Q1, first switch tube
The output end of Q1 is grounded, and the input terminal of first switch tube Q1 is connect with one end of capacitor C3, capacitor C4 simultaneously, capacitor C3, capacitor
The other end of C4 is the output end of level-one RF Amplifier Module 111, the input terminal of first switch tube Q1 also with resistance R2 one
End connection, the other end of resistance R2 are that the third power end of level-one RF Amplifier Module 111 is grounded by capacitor C12, resistance R3
One end be level-one RF Amplifier Module 111 the first power end be grounded by capacitor C6, the other end of resistance R3 is penetrated for level-one
The horizontal input terminal of frequency amplification module 111 is connect with the control terminal of second switch Q2, the output end ground connection of second switch Q2,
The input terminal of second switch Q2 is connect with one end of capacitor C1, capacitor C2 simultaneously, capacitor C1, capacitor C2 the other end be one
The output end of grade RF Amplifier Module 111, the input terminal of second switch Q2 are also connect with one end of resistance R4, and resistance R4's is another
One end is that the second source end of level-one RF Amplifier Module 111 is grounded by capacitor C5.
Second level RF Amplifier Module 112 includes：
Resistance R4, resistance R5, capacitor C7 and third switching tube Q3；
The control terminal of third switching tube Q3 is that the input terminal of second level RF Amplifier Module 112 is connect with one end of resistance R4,
The other end of resistance R4 is the 6th power end of second level RF Amplifier Module 112, and the control terminal of third switching tube Q3 also passes through electricity
Holding C7 ground connection, the input terminal of third switching tube Q3 is that the output end of the first feed receiving unit 11 is connect with one end of resistance R5,
The other end of resistance R5 is the 5th power end of second level RF Amplifier Module 112, the output end ground connection of third switching tube Q3.
The feeder ear group of power supply module 113 include the first feeder ear, the second feeder ear, third feeder ear, the 4th feeder ear,
5th feeder ear and the 6th feeder ear；
Power supply module 113 includes：
Resistance R7, resistance R8, resistance R9, capacitor C13, capacitor C14, diode D1 and power supply chip U1；
1 foot, 2 feet, 3 feet, 4 feet, 5 feet, 6 feet of power supply chip U1 are respectively the first feeder ear of power supply module 113, second
9 feet of feeder ear, third feeder ear, the 4th feeder ear, the 5th feeder ear, the 6th feeder ear, power supply chip U1 pass through capacitor C13
Ground connection, 11 feet of power supply chip U1 are connect with the anode of diode D1, and the cathode of diode D1 is the power supply of power supply module 113
End, 12 feet of power supply chip U1 are connect with one end of resistance R9, and the other end of resistance R9 is that the control terminal of power supply module 113 passes through
Capacitor C14 ground connection.
Preferably, power supply chip U1 can be realized using ZXNB4200 type power supply chip, wherein the pin of power supply chip U1
Function is as follows：
1 foot, 4 feet, 6 feet are respectively the first, second, third voltage input pin, and 2 feet, 3 feet, 5 feet are respectively first,
Two, tertiary voltage output pin, 9 feet are external capacitor pin, and 10 feet are low-voltage pin, and 11 feet are high-voltage pin, 12 feet
For output pin, 13 feet are input pin, and 14 feet are grounding pin, and 15 feet, 16 feet are external resistance pins.
In embodiments of the present invention, first order amplification (Q1, Q2) is respectively to the RF satellite for being mutually perpendicular to input by two groups of H, V
Signal is input to second level amplification (Q3) after carrying out low noise High frequency amplification, and tri- height of Q1, Q2, Q3, which are put field-effect battalion and provided, to be suitble to
Grid bias, guarantee that height puts the stabilization of pipe operating point, and be also the amplifier tube of minimum, the optimal working condition of noise to
The existing oscillator solved is unstable, the unstable problem of noise.
Fig. 3 shows filter unit, mixing unit in double reception microwave frequency changer circuit provided in an embodiment of the present invention and cuts
The exemplary circuit structure of control unit is changed, for ease of description, only the parts related to the present invention are shown.
As an embodiment of the present invention, filter unit 13 is bandpass filtering formula, filters out the letter other than 10.7-12.75GHZ
Number.
Further, filter unit 13 may include：
Capacitor C9, capacitor C10, capacitor C23, capacitor C24 and bandpass filter BPF；
One end of capacitor C9 is that the first input end of filter unit 13 is connect with one end of capacitor C10, and capacitor C9's is another
End is connect with the other end of capacitor C10, and one end of capacitor C23 is the second input terminal of filter unit 13 and one end of capacitor C24
The other end of connection, capacitor C23 is connect with the other end of capacitor C24, capacitor C9, capacitor C10 simultaneously, and the other end of capacitor C9 is also
It is connect with the input terminal of bandpass filter BPF, the output end of bandpass filter BPF is the output end of filter unit 13.
Bandpass filter BPF is that mirror image inhibits bandpass filter BPF.
As an embodiment of the present invention, mixing unit 14 includes：
Resistance R0, resistance R34, resistance R36, capacitor C0, capacitor C01, capacitor C16, capacitor C17, capacitor C18, capacitor
C19, capacitor C20, capacitor C21, capacitor C50, capacitor C51, crystal oscillator J1, integrated mixer oscillator U2, voltage stabilizing chip U5；
One end of capacitor C19 is the input terminal of mixing unit 14, and the other end of capacitor C19 is vibrated with integrated mixer simultaneously
3 feet of device U2, the connection of 4 feet, 1 foot, 2 feet, 5 feet, 6 feet, 7 feet, 13 feet, 15 feet of integrated mixer oscillator U2 are grounded simultaneously,
8 feet of integrated mixer oscillator U2 are connect with one end of capacitor C17, capacitor C18 simultaneously, the other end and resistance of capacitor C17
One end of R36 connects, and the other end of resistance R36 is connect with one end of the other end of capacitor C18 and capacitor C16 simultaneously, capacitor C16
Other end ground connection, 9 feet of integrated mixer oscillator U2 connect with one end of capacitor C16, integrated mixer oscillator U2's
10 feet are the power end of mixing unit 14, and 11 feet, 12 feet of integrated mixer oscillator U2 are connect with the both ends of crystal oscillator J1 respectively,
One end of crystal oscillator J1 is grounded by capacitor C50, and the other end of crystal oscillator J1 is grounded by capacitor C51, integrates mixer oscillator U2
14 pins and one end of resistance R34 connect, the other end of resistance R34 connect with one end of capacitor C21, and capacitor C21's is another
End connect with 1 foot of voltage stabilizing chip U5,16 feet of integrated mixer oscillator U2 and meanwhile with one end of resistance R0, capacitor C20
The other end ground connection of one end connection of one end, capacitor C01, capacitor C20 and capacitor C01, the other end and voltage stabilizing chip of resistance R0
3 feet of U5 connect, the 2 feet ground connection of voltage stabilizing chip U5, and 1 foot of voltage stabilizing chip U5 is that the output end of mixing unit 14 passes through capacitor C0
Ground connection.
The frequency of above-mentioned crystal oscillator J1 can be preferably 25MHz, and integrated mixer oscillator U2 preferably uses 1017 type of NXP
Frequency mixer, voltage stabilizing chip U5 preferably use 7086 type voltage stabilizing chip U5, wherein the pin function of integrated mixer oscillator U2 is such as
Under：
1 foot, 2 feet, 5 feet, 6 feet, 13 feet, 15 feet are grounding pin, and 16 feet are power pins, and 4 feet are signal input pin,
3 feet, 7 feet are non-selection pin, and 8 feet are phaselocked loop pin, and 9 feet are benchmark voltage pin, and 10 feet are selection pin, 11 feet, 12
Foot is oscillation pin, and 14 feet are signal output pin.
1 foot of voltage stabilizing chip is output pin, and 2 feet are grounding pin, and 3 feet are input pin.
In embodiments of the present invention, the 13/18V DC voltage that receiver is fed to product is transferred to surely via out splice going splice
Press IC&SWICH (ZXNB4200 or ZXNB4202) and 78M06.ZXNB4200U1 is responsible for the offer of Q1, Q2, Q3 voltage bias.This
NXP1017 5V voltage should be provided by ZXNB4200 and will cause NXP1017 work because being depressured 0.4V by 1N4148 diode
It is unstable.Increase 78M06 individually powers hereby for NXP1017 ensures product with stable quality (noise coefficient).
In embodiments of the present invention, inhibit bandpass filter BPF that RF signal is filtered into product institute need of work by mirror image
Frequency range in：10.7GHZ-12.75GHZ LOW-BAND 10.7GHZ-11.7GHZ, HIGH-BAND 11.7GHZ-
12.75GHZ, at this time by start-oscillation circuit quartz-crystal resonator (25M) and integrated mixer oscillator (NXP1017) frequency multiplication, again
Occur frequently local frequency LO required for product, and LOW-BAND frequency is 9.75GHZ, and HIGH-BAND frequency is 10.6GHZ.By collecting
At mixer oscillator (NXP1017) by RF signal (the LOW-BAND 10.7GHZ-11.7GHZ, HIGH- of product operational reception
BAND is 11.7GHZ-12.75GHZ) signal and local frequency LO (9.75GHZ/10.6GHZ) be mixed after carrying out frequency reducing.
IF L-BAND frequency is：
10.7GHZ-9.75GHZ=0.95GHZ
11.7GHZ-9.75GHZ=1.95GHZ
IF H-BAND frequency is：
11.7GHZ-10.6GHZ=1.1GHZ
12.75GHZ-10.6GHZ=2.15GHZ
As an embodiment of the present invention, switch control unit 15 includes：
Resistance R9, resistance R10, resistance R23, resistance R25, resistance R26, resistance R29, resistance R30, resistance R31, resistance
R33, capacitor C9, capacitor C37, capacitor C38, capacitor C39, diode D3, diode D4, first switch device Q7, second switch
Device Q8, third switching device Q10, first switch control chip Q9 and second switch control chip U3；
First switch device Q7, second switch device Q8 input terminal be simultaneously the control terminal of switch control unit 15, the
One switching device Q7, second switch device Q8 output end be respectively the output end of switch control unit 15, first switch device
Q7, second switch device Q8 control terminal respectively with first switch control chip Q9 5 feet and 2 feet connect, first switch device
It is connected between the control terminal and input terminal of Q7 by resistance R10, is passed through between the control terminal and input terminal of second switch device Q8
1 foot of resistance R33 connection, first switch control chip Q9 is grounded by resistance R31, and 6 feet that first switch controls chip Q9 are logical
Resistance R26 ground connection is crossed, 3 feet and 4 feet of first switch control chip Q9 control 1 foot and 2 feet of chip U3 with second switch respectively
Connection, second switch control the 5 feet ground connection of chip U3, and 4 feet of second switch control chip U3 are grounded by capacitor C38, and second
4 feet of switch control chip U3 also pass through resistance R23 and connect with 6 feet of second switch control chip U3, and second switch controls core
6 feet of piece U3 are also connect with one end of the cathode of diode D3 and capacitor C37 simultaneously, the plus earth of diode D3, capacitor C37
The other end ground connection, second switch control chip U3 7 feet and 8 feet between connected by resistance R25, second switch control chip
7 feet of U3 are also connect with one end of one end of capacitor C9, resistance R9 simultaneously, and the other end, the other end of resistance R9 of capacitor C9 is equal
It being connect with the cathode of diode D4, the plus earth of diode D4, the cathode of diode D4 is also connect with one end of resistance R29,
The other end of R29 is connect with one end of capacitor C39, the other end of capacitor C39 simultaneously with the cathode of diode D3 and resistance R30
One end connection, the other end of resistance R30 are the control terminal of switch control unit 15, the control terminal of third switching device Q10 and the
7 feet of two switch control chip U3 connect, and the input terminal of third switching device Q10 is connect with the cathode of diode D4, and third is opened
Close the output end ground connection of device Q10.
As a preferred embodiment of the present invention, first switch device Q7, second switch device Q8, third switching device Q10
It may each be triode, metal-oxide-semiconductor is also possible to the switching devices such as switch chip.
First switch control chip Q9 preferably uses PUMX1 type switch control chip, which controls chip Q9's
Pin function is as follows：
Second switch control chip U3 preferably uses DST153 type switch control chip, which controls chip U3's
Pin function is as follows：
1 foot, 8 feet, 6 feet, 2 feet are respectively four way switch control pin, and 3 feet are grounding pin, and 4 feet are that signal input is drawn
Foot, 5 feet are power pins, and 7 feet are oscillation pin.
In embodiments of the present invention, receiver is fed to the 13/18V direct current of product by R30 to D3 zener diode
Afterwards, it is input to the 6th foot of DS4T153.The corresponding foot 3 of PUMX1, the foot 4 that Q9 is transported to by DST153 foot 1, foot 2.PUMX1 foot 2 is simultaneously
Supply electricity to Q7, Q8.The corresponding U1 of Q7, Q8 (feed 1), U4 (feed 2).DS4T153 controls PUMX1 foot 3, foot 4 when switching
Power supply, foot 4 disconnects then on the contrary, thus U1 work U4 is just disconnected when foot 3 is powered, and U4 work U1 is disconnected.
Due to controlling the selection of the first, second feed, the first, second feed by PUMX1+DS4T153 element
Only one works receiving unit, and when the work of the first feed receiving unit 11, the second feed receiving unit 12 closes automatically
It closes, therefore can accomplish that two satellite signal receivings are anti-tampering.
In embodiments of the present invention, after antenna receives satellite-signal, feed transmission is sent to the guided wave of feed receiving unit
In pipe 110, the satellite-signal of two groups of H, V orthogonal polarization oscillator inputs is received by waveguide pipe 110, wherein H penetrates for level
Frequency signal, V are vertical radiofrequency signal, radio frequency amplification are carried out after vertical antenna L-PIN and horizontal antenna I-PIN is received, through phase
The corresponding first order amplifies signal, until signal amplification again through the second level, is delivered to filter unit 13 again, is pressed down by mirror image by coupling
Radiofrequency signal, is filtered into the frequency range of product institute need of work by bandpass filtering (BPF) filtering processed：10.7GHZ-
12.75GHZ, wherein LOW-BAND is 10.7GHZ-11.7GHZ, HIGH-BAND 11.7GHZ-12.75GHZ；
Then, filtered radiofrequency signal is exported to mixing unit 14, at this time by start-oscillation circuit quartz-crystal resonator
(25M) and integrated mixer oscillator (NXP1017) frequency multiplication, shake local frequency LO required for product out, LOW-BAND frequency
For 9.75GHZ, HIGH-BAND frequency is 10.6GHZ.By integrating mixer oscillator (NXP1017) for product operational reception
RF signal (LOW-BAND 10.7GHZ-11.7GHZ, HIGH-BAND 11.7GHZ-12.75GHZ) signal and local frequency LO
(9.75GHZ/10.6GHZ) carries out frequency reducing mixing, and the intermediate-freuqncy signal (IF) for generating product demand is input to receiver.
The another object of the embodiment of the present invention is, provides a kind of microwave change including above-mentioned double reception microwave frequency changer circuit
Frequency device.
The embodiment of the present invention switches the reception of the first feed and the second feed by switch control unit, to realize while connect
It receives two satellite-signals to be arranged without conversion frequency, no signal is dry between easy to operate and received two satellite-signals of guarantee
It disturbs, signal is mutually gone here and there.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.
Claims (9)
1. a kind of double reception microwave frequency changer circuit, which is characterized in that the circuit includes：
First feed receiving unit for receiving the first feed signal, and polarizes, at amplification to the first feed signal
Reason generates the first radiofrequency signal；
Second feed receiving unit for receiving the second feed signal, and polarizes, at amplification to the second feed signal
Reason generates the second radiofrequency signal；
Filter unit, for being filtered to first or second radiofrequency signal, the first, second input terminal point of the filter unit
It is not connect with the output end of the first, second feed receiving unit；
Mixing unit realizes down conversion process for filtered radiofrequency signal to be mixed with local frequency, generates intermediate-freuqncy signal and mentions
Receiver is supplied, the input terminal of the mixing unit is connect with the output end of the filter unit, the power supply of the mixing unit
End is connect with the feeder ear of the first, second feed receiving unit simultaneously, and the output end and receiver of the mixing unit connect
It connects；
Switch control unit is used for switching control the first feed receiving unit and the second feed receiving unit, receives the with selection
One radiofrequency signal or the second radiofrequency signal, the first, second output end of the switch control unit is respectively with described first, second
The switching control end of feed receiving unit connects, and the control terminal of the switch control unit is connect with receiver；
The filter unit includes：
Capacitor C9, capacitor C10, capacitor C23, capacitor C24 and bandpass filter；
One end of the capacitor C9 is that the first input end of the filter unit is connect with one end of the capacitor C10, the electricity
The other end for holding C9 is connect with the other end of the capacitor C10, and one end of the capacitor C23 is second defeated for the filter unit
Enter end to connect with one end of the capacitor C24, the other end of the capacitor C23 and meanwhile with the capacitor C24, the capacitor C9,
The other end of the capacitor C10 connects, and the other end of the capacitor C9 is also connect with the input terminal of the bandpass filter, described
The output end of bandpass filter is the output end of the filter unit.
2. circuit as described in claim 1, which is characterized in that the first feed receiving unit and second feed receive
Cellular construction is identical, and the first feed receiving unit includes：
Waveguide pipe, for being horizontal radiofrequency signal and vertical radiofrequency signal by received feed polarizations；
Level-one RF Amplifier Module generates level-one water for amplifying processing to horizontal radiofrequency signal and vertical radiofrequency signal
Flat amplified signal and primary vertical amplified signal, the horizontal input terminal of the level-one RF Amplifier Module and vertical input terminal difference
It is connect with the horizontal output end of the waveguide pipe and vertical output end；
Second level RF Amplifier Module generates high intensity for amplifying processing again to the amplified radiofrequency signal of level-one
Radiofrequency signal, the input terminal of the second level RF Amplifier Module is connect with the output end of the level-one RF Amplifier Module, described
The output end of second level RF Amplifier Module is the output end of the first or second feed receiving unit；
Power supply module, for providing supply voltage, the feeder ear of the power supply module for the level-one, second level RF Amplifier Module
Group is correspondingly connected with the level-one, the power end group of second level RF Amplifier Module, and the power end of the power supply module is described the
The feeder ear of one feed receiving unit, the control terminal of the power supply module are the switching control of the first feed receiving unit
End.
3. circuit as described in claim 1, which is characterized in that the filter unit is bandpass filtering formula, filters out 10.7-
12.75GHZ signal in addition.
4. circuit as described in claim 1, which is characterized in that the mixing unit includes：
Resistance R0, resistance R34, resistance R36, capacitor C0, capacitor C01, capacitor C16, capacitor C17, capacitor C18, capacitor C19, electricity
Hold C20, capacitor C21, capacitor C50, capacitor C51, crystal oscillator, integrated mixer oscillator, voltage stabilizing chip；
One end of the capacitor C19 is the input terminal of the mixing unit, and the other end of the capacitor C19 is integrated with described simultaneously
3 feet of mixer oscillator, the connection of 4 feet, 1 foot, 2 feet, 5 feet, 6 feet, 7 feet, 13 feet, 15 feet of the integrated mixer oscillator
It is grounded simultaneously, 8 feet of the integrated mixer oscillator are connect with one end of the capacitor C17, the capacitor C18 simultaneously, institute
The other end for stating capacitor C17 is connect with one end of the resistance R36, the other end of the resistance R36 simultaneously with the capacitor C18
The other end connected with one end of the capacitor C16, the other end of capacitor C16 ground connection, the integrated mixer oscillator
9 feet connect with one end of the capacitor C16,10 feet of the integrated mixer oscillator are the power supply of the mixing unit
End, 11 feet, 12 feet of the integrated mixer oscillator are connect with the both ends of the crystal oscillator respectively, and one end of the crystal oscillator passes through
The capacitor C50 ground connection, the other end of the crystal oscillator are grounded by the capacitor C51, and the 14 of the integrated mixer oscillator
Pin is connect with one end of the resistance R34, and the other end of the resistance R34 is connect with one end of the capacitor C21, the electricity
The other end for holding C21 is connect with 1 foot of the voltage stabilizing chip, 16 feet of the integrated mixer oscillator and meanwhile with the resistance
One end connection of one end of R0, one end of the capacitor C20, the capacitor C01, the capacitor C20 and the capacitor C01's is another
One end ground connection, the other end of the resistance R0 are connect with 3 feet of the voltage stabilizing chip, the 2 feet ground connection of the voltage stabilizing chip, described
1 foot of voltage stabilizing chip is that the output end of the mixing unit is grounded by the capacitor C0.
5. circuit as described in claim 1, which is characterized in that the switch control unit includes：
Resistance R9, resistance R10, resistance R23, resistance R25, resistance R26, resistance R29, resistance R30, resistance R31, resistance R33, electricity
Hold C9, capacitor C37, capacitor C38, capacitor C39, diode D3, diode D4, first switch device Q7, second switch device Q8,
Third switching device Q10, first switch control chip Q9 and second switch control chip U3, and the second switch controls chip
The model DST153 of U3；
The first switch device Q7, the second switch device Q8 input terminal simultaneously be the switch control unit control
End, the first switch device Q7, the second switch device Q8 output end be respectively the output of the switch control unit
End, the first switch device Q7, the second switch device Q8 control terminal respectively with the first switch control chip Q9
5 feet and the connection of 2 feet, it is described by the resistance R10 connection between the control terminal and input terminal of the first switch device Q7
By the resistance R33 connection between the control terminal and input terminal of second switch device Q8, the first switch controls chip Q9
1 foot be grounded by the resistance R31,6 feet of first switch control chip Q9 are described by resistance R26 ground connection
3 feet and 4 feet of first switch control chip Q9 are connect with 1 foot of second switch control chip U3 and 2 feet respectively, and described the
5 feet of two switch control chip U3 are grounded, and 4 feet of the second switch control chip U3 are grounded by the capacitor C38, described
4 feet of second switch control chip U3 also pass through the resistance R23 and connect with 6 feet of second switch control chip U3, institute
It states 6 feet of second switch control chip U3 also while being connect with one end of the cathode of the diode D3 and the capacitor C37, institute
State the plus earth of diode D3, the other end ground connection of the capacitor C37,7 feet and 8 feet of the second switch control chip U3
Between by the resistance R25 connection, 7 feet of the second switch control chip U3 also and meanwhile with one end of the capacitor C9,
One end of the resistance R9 connects, the other end of the capacitor C9, the resistance R9 the other end with the diode D4's
Cathode connection, the plus earth of the diode D4, the cathode of the diode D4 are also connect with one end of the resistance R29,
The other end of the R29 is connect with one end of the capacitor C39, the other end of the capacitor C39 simultaneously with the diode D3
Cathode connected with one end of the resistance R30, the other end of the resistance R30 is the control terminal of the switch control unit,
The control terminal of the third switching device Q10 is connect with 7 feet of second switch control chip U3, the third switching device
The input terminal of Q10 is connect with the cathode of the diode D4, the output end ground connection of the third switching device Q10.
6. circuit as claimed in claim 2, which is characterized in that the level-one RF Amplifier Module includes：
Resistance R1, resistance R2, resistance R3, resistance R4, capacitor C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5, capacitor C6, electricity
Hold C11, capacitor C12, first switch tube, second switch；
One end of the resistance R1 is that the 4th power end of the level-one RF Amplifier Module is grounded by the capacitor C11, institute
The other end for stating resistance R1 is that the vertical input terminal of the level-one RF Amplifier Module and the control terminal of the first switch tube connect
Connect, the output end of first switch tube ground connection, the input terminal of the first switch tube simultaneously with the capacitor C3, the capacitor
One end of C4 connects, the capacitor C3, the capacitor C4 the other end be the output end of the level-one RF Amplifier Module, institute
The input terminal for stating first switch tube is also connect with one end of the resistance R2, and the other end of the resistance R2 is the level-one radio frequency
The third power end of amplification module is grounded by the capacitor C12, and one end of the resistance R3 is that the level-one radio frequency amplifies mould
First power end of block is grounded by the capacitor C6, and the other end of the resistance R3 is the water of the level-one RF Amplifier Module
Flat input terminal is connect with the control terminal of the second switch, the output end ground connection of the second switch, the second switch
The input terminal of pipe is connect with one end of the capacitor C1, capacitor C2 simultaneously, the capacitor C1, the capacitor C2 the other end be
The output end of the level-one RF Amplifier Module, the input terminal of the second switch are also connect with one end of the resistance R4,
The other end of the resistance R4 is that the second source end of the level-one RF Amplifier Module is grounded by the capacitor C5.
7. circuit as claimed in claim 2, which is characterized in that the second level RF Amplifier Module includes：
Resistance R4, resistance R5, capacitor C7 and third switching tube；
The control terminal of the third switching tube is that the input terminal of the second level RF Amplifier Module and one end of the resistance R4 connect
It connects, the other end of the resistance R4 is the 6th power end of the second level RF Amplifier Module, the control of the third switching tube
End is also grounded by the capacitor C7, the input terminal of the third switching tube be the first feed receiving unit output end with
One end of the resistance R5 connects, and the other end of the resistance R5 is the 5th power end of the second level RF Amplifier Module, institute
State the output end ground connection of third switching tube.
8. circuit as claimed in claim 2, which is characterized in that the feeder ear group of the power supply module include the first feeder ear,
Second feeder ear, third feeder ear, the 4th feeder ear, the 5th feeder ear and the 6th feeder ear, the power supply module include：
Resistance R7, resistance R8, resistance R19, capacitor C13, capacitor C14, diode D1 and power supply chip；
1 foot, 2 feet, 3 feet, 4 feet, 5 feet, 6 feet of the power supply chip are respectively the first feeder ear of the power supply module, second
Feeder ear, third feeder ear, the 4th feeder ear, the 5th feeder ear, the 6th feeder ear, 9 feet of the power supply chip pass through described
Capacitor C13 ground connection, 11 feet of the power supply chip are connect with the anode of the diode D1, and the cathode of the diode D1 is institute
The power end of power supply module is stated, 12 feet of the power supply chip are connect with one end of the resistance R19, and the resistance R19's is another
One end is that the control terminal of the power supply module is grounded by the capacitor C14, and 15 feet of the power supply chip pass through the resistance
16 feet of R7 ground connection, the power supply chip are grounded by the resistance R8.
9. a kind of microwave converter, which is characterized in that the microwave converter includes as claimed in any one of claims 1 to 8
Microwave frequency changer circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610495252.5A CN106130593B (en) | 2016-06-29 | 2016-06-29 | A kind of double reception microwave frequency changer circuit and microwave converter |
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| CN201610495252.5A CN106130593B (en) | 2016-06-29 | 2016-06-29 | A kind of double reception microwave frequency changer circuit and microwave converter |
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| CN106130593B true CN106130593B (en) | 2018-11-23 |
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| CN106533494B (en) * | 2016-12-22 | 2019-05-03 | 华讯方舟科技（湖北）有限公司 | A kind of microwave converter and its microwave frequency changer circuit |
| CN106712799B (en) * | 2017-01-18 | 2018-11-23 | 华讯方舟科技（湖北）有限公司 | A kind of frequency converter and its microwave frequency changer circuit |
| CN110391821A (en) * | 2019-08-21 | 2019-10-29 | 华讯方舟科技（湖北）有限公司 | A kind of signal receiving circuit and satellite signal receiving equipment |
| CN112491482B (en) * | 2020-11-30 | 2024-06-04 | 劳戈 | Micro microwave induction antenna |
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| CN105430356A (en) * | 2015-12-24 | 2016-03-23 | 华讯方舟科技（湖北）有限公司 | Four-output microwave frequency conversion circuit and microwave frequency converter |
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| CN1118113A (en) * | 1994-09-01 | 1996-03-06 | 松下电器产业株式会社 | Microwave mix circuit and lower frequency converter with same |
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| US20040106391A1 (en) * | 2002-11-25 | 2004-06-03 | Antonio Romano | Sub-harmonic mixer |
| CN201797482U (en) * | 2010-09-01 | 2011-04-13 | 郴州希典科技有限公司 | Frequency converter under C-BAND two local oscillators and multiplexed output |
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| CN106130593A (en) | 2016-11-16 |
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Effective date of registration: 20211108 Address after: 518000 418, floor 4, building 37, chentian Industrial Zone, Baotian 1st Road, Xixiang street, Bao'an District, Shenzhen, Guangdong Patentee after: SHENZHEN HUAXUN FANGZHOU SATELLITE INDUSTRIAL TECHNOLOGY Co.,Ltd. Address before: 434020 shacen Road (Zhuqiao Industrial Park), Jingzhou Development Zone, Jingzhou City, Hubei Province Patentee before: CHINA COMMUNICATION TECHNOLOGY(HUBEI) Co.,Ltd. |
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