CN209419615U - A kind of 30MHz-512MHz wide-band numerical-control frequency hopping filter - Google Patents
A kind of 30MHz-512MHz wide-band numerical-control frequency hopping filter Download PDFInfo
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- CN209419615U CN209419615U CN201920325389.5U CN201920325389U CN209419615U CN 209419615 U CN209419615 U CN 209419615U CN 201920325389 U CN201920325389 U CN 201920325389U CN 209419615 U CN209419615 U CN 209419615U
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Abstract
The utility model proposes a kind of 30MHz-512MHz wide-band numerical-control frequency hopping filters, output level by controlling switching circuit switches between 30MHz-90MHz, 90MHz-225MHz and 225MHz-512MHz to control, due to selecting decoder and phase inverter in switching circuit, it can realize that 30MHz to 512MHz full rate section tunes within 20us；By the way that 10 road tuning circuits are arranged, unwanted clutter, harmonic wave in signal can be filtered out, the stability and anti-interference of filter are improved, to solve the problems, such as the span from 30MHz to 512MHz；Whole device whole device may be implemented frequency range and switch between 30MHz-90MHz, 90MHz-225MHz and 225MHz-512MHz, and be encapsulated as patch type, realize ultratvide frequency band span and ultra-small volume.
Description
Technical field
The utility model relates to wireless communication fields more particularly to a kind of 30MHz-512MHz wideband numerical control frequency hopping to filter
Device.
Background technique
The continuous upgrading of rapid development and global militarization equipment recently as electronic technology, causes logical to radio
The requirement for interrogating technical field and equipment is higher and higher.Whether civilian or military industry field, to the volume and function of wireless device
It can require to be that staged rises.In military industry field, it is now in equipment and technology innovation, upgrading, it is small-sized to wireless device
Change, demand miniaturization is extremely urgent.Technically it is even more Gonna breakthrough previous generation, needs that its performance is more stable, anti-interference energy
Power further upgrades and power consumption is lower.Because as the important component of radio-frequency front-end, numerical-control frequency hopping filter is directly determined
The sensitivity of receiver is determined.Therefore now need that a kind of volume is frivolous, performance is stable, strong antijamming capability and effect are low
The tuning transceiving radio frequency front end of 30MHz-512MHz frequency range transceiver.
Utility model content
In view of this, that the utility model proposes a kind of volumes is frivolous, performance is stable, strong antijamming capability and effect are low
30MHz-512MHz frequency range transceiver tuning transceiving radio frequency front end.
The technical solution of the utility model is achieved in that the utility model provides a kind of 30MHz-512MHz wideband
Numerical control bounce frequency filter comprising power supply, processor, multichannel tuning circuit and multi-path digital control circuit, further include multichannel
Switching circuit；
Switching circuit includes decoder and phase inverter；
Power supply, processor, digital control circuit and tuning circuit are sequentially electrically connected, processor, decoder, phase inverter and
Tuning circuit is sequentially electrically connected.
On the basis of above technical scheme, it is preferred that tuning circuit includes the first resonance circuit and the second resonance circuit；
Phase inverter is electrically connected with the first resonance circuit and the second resonance circuit respectively, and digital control circuit is respectively with first
Resonance circuit and the second resonance circuit are electrically connected.
It is further preferred that tuning circuit, digital control circuit and switching circuit are 10 tunnels.
It is further preferred that processor is SST39VF-TSOP48；
Decoder is mc74hc139adtr2g；
The 2nd pin of mc74hc139adtr2g and the 3rd pin respectively with A8 the and A9 pin of SST39VF-TSOP48 one by one
It is corresponding to be electrically connected.
It is further preferred that phase inverter includes 7404, resistance R46 and capacitor C3；
7404 A pin and 7 pins of mc74hc139adtr2g are electrically connected, 7404 GND pin ground connection, VCC pin
It is electrically connected with the power supply, NC pin floating, one end of Y pin and resistance R46 are electrically connected, the other end and resonance of resistance R46
Circuit is electrically connected, and Y pin is grounded by capacitor C3.
It is further preferred that the first resonance circuit includes inductance L1, inductance L2, resistance R1, resistance R2, capacitor C1, capacitor
C3, capacitor C4, varactor D1 and varactor D2；
One end of inductance L1 and rf inputs mouth are electrically connected, and the other end of inductance L1 and one end of inductance L2 connect
One end of ground, the other end of inductance L2 and capacitor C1 are electrically connected, the other end of capacitor C1 respectively with one end of resistance R1, resistance
The anode of one end of R2, the cathode of varactor D1 and varactor D2 is electrically connected, the other end of resistance R1 and transfiguration
The anode of diode D1 is electrically connected, and the other end of resistance R2 and the cathode of varactor D2 are electrically connected, and the one of capacitor C3
End and the anode of varactor D1 are electrically connected, and one end of capacitor C4 and the cathode of varactor D2 are electrically connected, capacitor
The other end of C3 and the other end of capacitor C4 are grounded, and the cathode and digital control circuit of varactor D2 is electrically connected, and are become
The other end of the anode and resistance R46 that hold diode D1 is electrically connected.
It is further preferred that the second resonance circuit includes inductance L4, inductance L3, resistance R3, resistance R4, capacitor C2, capacitor
C5, capacitor C6, varactor D3 and varactor D4；
One end of inductance L4 and radio frequency output port are electrically connected, and the other end of inductance L4 and one end of inductance L3 connect
One end of ground, the other end of inductance L3 and capacitor C2 are electrically connected, the other end of capacitor C2 respectively with one end of resistance R3, resistance
The anode of one end of R4, the cathode of varactor D3 and varactor D4 is electrically connected, the other end of resistance R3 and transfiguration
The anode of diode D3 is electrically connected, and the other end of resistance R4 and the cathode of varactor D4 are electrically connected, and the one of capacitor C5
End and the anode of varactor D3 are electrically connected, and one end of capacitor C6 and the cathode of varactor D4 are electrically connected, capacitor
The other end of C5 and the other end of capacitor C6 are grounded, and the cathode and digital control circuit of varactor D4 is electrically connected, and are become
The other end of the anode and resistance R46 that hold diode D3 is electrically connected.
A kind of 30MHz-512MHz wide-band numerical-control frequency hopping filter of the utility model have compared with the existing technology with
It is lower the utility model has the advantages that
(1) by setting switching circuit, frequency-selecting may be implemented, controlled by controlling the output level of switching circuit
Switch between 30MHz-90MHz, 90MHz-225MHz and 225MHz-512MHz, due to selection decoder in switching circuit and instead
Phase device can realize that 30MHz to 512MHz full rate section tunes within 20us；
(2) by 10 road tuning circuits of setting, unwanted clutter, harmonic wave in signal can be filtered out, filter is improved
Stability and anti-interference realize high low side technical indicator matching to solve the problems, such as the span from 30MHz to 512MHz
Technical problem；
(3) it by the way that numerical-control frequency hopping filter is encapsulated as patch type, makes installation faster more stable, radio-frequency front-end is made to tend to be small
Type and low power consumption；
(4) it using patch type and encapsulates design without stitch, further greatly reduce volume, thickness is only 6mm,
It not only ensure that its reliability, even more reduce space and volume for complete machine；
(5) frequency range may be implemented in 30MHz-90MHz, 90MHz-225MHz and 225MHz- in whole device whole device
Switch between 512MHz, and be encapsulated as patch type, realizes ultratvide frequency band span and ultra-small volume.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structure chart of 30MHz-512MHz wide-band numerical-control frequency hopping filter of the utility model；
Fig. 2 is the pinouts of processor in a kind of 30MHz-512MHz wide-band numerical-control frequency hopping filter of the utility model；
Fig. 3 is the first resonance circuit and the in a kind of 30MHz-512MHz wide-band numerical-control frequency hopping filter of the utility model
The circuit diagram of two resonance circuits；
Fig. 4 is the circuit of switching circuit in a kind of 30MHz-512MHz wide-band numerical-control frequency hopping filter of the utility model
Figure；
Fig. 5 is the electricity of digital control circuit in a kind of 30MHz-512MHz wide-band numerical-control frequency hopping filter of the utility model
Lu Tu.
Specific embodiment
Below in conjunction with the utility model embodiment, the technical solution in the utility model embodiment is carried out clear
Chu is fully described by, it is clear that and described embodiment is only a part of embodiment of the utility model, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work
Under the premise of every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, a kind of 30MHz-512MHz wide-band numerical-control frequency hopping filter of the utility model comprising electricity
Source, processor, multichannel tuning circuit, multi-path digital control circuit and multi-way switch circuit.Wherein, switching circuit includes decoder
And phase inverter.
In the present embodiment, span between 30MHz-512MHz frequency range may be implemented in the utility model, due to this frequency range across
Frequency is extremely wide, and the present embodiment uses 10 road tuning circuits, to solve the problems, such as the span from 30MHz-512MHz, realizes height
Hold the matched technical problem of technical indicator.Due to using 10 road tuning circuits, the present embodiment uses 10 railway digital controls
Circuit processed and 10 tunnel switching circuits realize full rate section fast frequency hopping and quick frequency-selecting from 30MHz to 512MHz respectively.This reality
It applies numerical-control frequency hopping filter in example and uses patch type without stitch encapsulation design, further greatly reduce volume, it is thick
Degree is only 6mm.This design not only ensure that its reliability, even more reduce space and volume for complete machine.
In the present embodiment, processor uses SST39VF-TSOP48.The peripheral circuit and core of SST39VF-TSOP48
Piece pinouts is as shown in Figure 2.
Switching circuit controls selections frequency by the voltage of control output, realizes 30MHz-90MHz, 90MHz-
Switch between 225MHz and 225MHz-512MHz.Wherein, as shown in figure 4, switching circuit includes decoder, phase inverter, resistance
R46, capacitor C2 and capacitor C3.Decoder selects mc74hc139adtr2g, and the 2nd pin of mc74hc139adtr2g and the 3rd draws
Foot corresponds with A8 the and A9 pin of SST39VF-TSOP48 be electrically connected respectively, and 16 pins of mc74hc139adtr2g are logical
Capacitor C2 ground connection is crossed, 16 pins of mc74hc139adtr2g are electrically connected with the power supply.Phase inverter selects 7404,7404 A pin
It is electrically connected with 7 pins of mc74hc139adtr2g, 7404 GND pin ground connection, VCC pin is electrically connected with the power supply, and NC draws
Foot is hanging, and one end of Y pin and resistance R46 are electrically connected, and the other end and resonance circuit of resistance R46 is electrically connected, and Y pin is logical
Cross capacitor C3 ground connection.Wherein, the effect of decoder is will to input the various states of binary code, is translated into pair according to its original meaning
The output signal answered, specific logical relation is exactly that " input is 1, then output is 0 between the output and input of phase inverter；Input
It is 0, then output is 1 ", exports the negative always inputted, realizes the switching between frequency range using this logical relation.
Tuning circuit, by adjusting resonant circuit components, so that the intrinsic frequency of circuit and wanting received aerogram
Road frequency is consistent, reaches channel selection purpose.In the present embodiment, tuning circuit includes the first resonance circuit and the second resonance circuit,
First resonance circuit and the second resonance circuit can play the role of filtering out unwanted clutter, harmonic wave.
Wherein, as shown in figure 3, the first resonance circuit includes including inductance L1, inductance L2, resistance R1, resistance R2, capacitor
C1, capacitor C3, capacitor C4, varactor D1 and varactor D2；Wherein, the most important tuned cell of filter is transfiguration
Diode, the varactor that the present embodiment uses are the varactor of high Q, low internal resistance, it has its insertion loss small,
The big characteristic of proximal inhibition, which improves the sensitivity of transceiver.Specifically, one end and the rf inputs of inductance L1
Mouth is electrically connected, and the other end of inductance L1 and one end of inductance L2 are grounded, the other end of inductance L2 and one end electricity of capacitor C1
Property connection, the other end of capacitor C1 respectively with one end of resistance R1, one end of resistance R2, the cathode of varactor D1 and transfiguration
The anode of diode D2 is electrically connected, and the other end of resistance R1 and the anode of varactor D1 are electrically connected, and resistance R2's is another
The cathode of one end and varactor D2 are electrically connected, and one end of capacitor C3 and the anode of varactor D1 are electrically connected, electricity
The cathode of one end and varactor D2 for holding C4 is electrically connected, and the other end of capacitor C3 and the other end of capacitor C4 are grounded,
The cathode and digital control circuit of varactor D2 is electrically connected, the other end of the anode and resistance R46 of varactor D1
It is electrically connected.
As shown in figure 3, the second resonance circuit include: inductance L4, inductance L3, resistance R3, resistance R4, capacitor C2, capacitor C5,
Capacitor C6, varactor D3 and varactor D4；Specifically, one end of inductance L4 and radio frequency output port are electrically connected,
The other end of inductance L4 and one end of inductance L3 are grounded, and the other end of inductance L3 and one end of capacitor C2 are electrically connected, capacitor
The other end of C2 respectively with one end of resistance R3, one end of resistance R4, the cathode of varactor D3 and varactor D4
Anode is electrically connected, and the other end of resistance R3 and the anode of varactor D3 are electrically connected, the other end of resistance R4 and transfiguration
The cathode of diode D4 is electrically connected, and one end of capacitor C5 and the anode of varactor D3 are electrically connected, one end of capacitor C6
It is electrically connected with the cathode of varactor D4, the other end of capacitor C5 and the other end of capacitor C6 are grounded, varactor
The cathode and digital control circuit of D4 is electrically connected, and the anode of varactor D3 is electrically connected with the other end of resistance R46.It is logical
It crosses to change and controls the voltage of foot OUT1 in Fig. 3 and Fig. 5 to control the on and off of varactor, reach change resonant capacitance
Value, and realize fast frequency hopping.Wherein, L1, L2 are impedance matching inductance, play the role of adjusting impedance matching；Based on L3, L4
Resonant inductance, effect are to participate in resonance；D1, D2, D3 and D4 are PIN switching diode, and on and off reaches change and participates in
Resonant capacitance value.In 12 the first resonance circuits of tunnel share inductance L1 and inductance L2, the second resonance circuit share inductance L3 and
Inductance L4.
Digital control circuit drives the first resonance circuit and the second resonance circuit.As shown in figure 5, digital control circuit packet
Include resistance R5~R8, triode Q1~Q3；Specifically, one end of resistance R5 and one end of resistance R6 are electrically connected, resistance R5's
The other end of the other end and resistance R6 correspond with the base stage of triode Q1 and collector be electrically connected respectively, triode Q1's
The anode electric connection of the anode and varactor D4 of emitter and varactor D2, one end of resistance R6 and resistance R8's
One end is electrically connected with the D0 pin of SST39VF-TSOP48, and the other end of resistance R7 electrically connects with the base stage of triode Q2
It connects, the collector of triode Q2 and the base stage of triode Q1 are electrically connected, and the emitter ground connection of triode Q2, resistance R8's is another
End and the base stage of triode Q3 are electrically connected, and the collector of triode Q3 and the emitter of triode Q1 are electrically connected, triode
The emitter of Q3 is grounded.It is no longer burdensome herein since digital control circuit belongs to the prior art.
The foregoing is merely the better embodiments of the utility model, are not intended to limit the utility model, it is all
Within the spirit and principles of the utility model, it is practical new to should be included in this for any modification, equivalent replacement, improvement and so on
Within the protection scope of type.
Claims (7)
1. a kind of 30MHz-512MHz wide-band numerical-control frequency hopping filter comprising power supply, processor, multichannel tuning circuit and more
Number word control circuit, it is characterised in that: further include multi-way switch circuit；
The switching circuit includes decoder and phase inverter；
The power supply, processor, digital control circuit and tuning circuit are sequentially electrically connected, processor, decoder, phase inverter and
Tuning circuit is sequentially electrically connected.
2. a kind of 30MHz-512MHz wide-band numerical-control frequency hopping filter as described in claim 1, it is characterised in that: the tune
Humorous circuit includes the first resonance circuit and the second resonance circuit；
The phase inverter is electrically connected with the first resonance circuit and the second resonance circuit respectively, and digital control circuit is respectively with first
Resonance circuit and the second resonance circuit are electrically connected.
3. a kind of 30MHz-512MHz wide-band numerical-control frequency hopping filter as claimed in claim 2, it is characterised in that: the tune
Humorous circuit, digital control circuit and switching circuit are 10 tunnels.
4. a kind of 30MHz-512MHz wide-band numerical-control frequency hopping filter as claimed in claim 3, it is characterised in that: the place
Reason device is SST39VF-TSOP48；
The decoder is mc74hc139adtr2g；
The 2nd pin of the mc74hc139adtr2g and the 3rd pin respectively with A8 the and A9 pin of SST39VF-TSOP48 one by one
It is corresponding to be electrically connected.
5. a kind of 30MHz-512MHz wide-band numerical-control frequency hopping filter as claimed in claim 4, it is characterised in that: described anti-
Phase device includes 7404, resistance R46 and capacitor C3；
Described 7404 A pin and 7 pins of mc74hc139adtr2g are electrically connected, 7404 GND pin ground connection, VCC pin
It is electrically connected with the power supply, NC pin floating, one end of Y pin and resistance R46 are electrically connected, the other end and resonance of resistance R46
Circuit is electrically connected, and Y pin is grounded by capacitor C3.
6. a kind of 30MHz-512MHz wide-band numerical-control frequency hopping filter as claimed in claim 4, it is characterised in that: described the
One resonance circuit include inductance L1, inductance L2, resistance R1, resistance R2, capacitor C1, capacitor C3, capacitor C4, varactor D1 and
Varactor D2；
One end of the inductance L1 and rf inputs mouth are electrically connected, and the other end of inductance L1 and one end of inductance L2 connect
One end of ground, the other end of inductance L2 and capacitor C1 are electrically connected, the other end of capacitor C1 respectively with one end of resistance R1, resistance
The anode of one end of R2, the cathode of varactor D1 and varactor D2 is electrically connected, the other end of resistance R1 and transfiguration
The anode of diode D1 is electrically connected, and the other end of resistance R2 and the cathode of varactor D2 are electrically connected, and the one of capacitor C3
End and the anode of varactor D1 are electrically connected, and one end of capacitor C4 and the cathode of varactor D2 are electrically connected, capacitor
The other end of C3 and the other end of capacitor C4 are grounded, and the cathode and digital control circuit of varactor D2 is electrically connected, and are become
The other end of the anode and resistance R46 that hold diode D1 is electrically connected.
7. a kind of 30MHz-512MHz wide-band numerical-control frequency hopping filter as claimed in claim 6, it is characterised in that: described the
Two resonance circuits include inductance L4, inductance L3, resistance R3, resistance R4, capacitor C2, capacitor C5, capacitor C6, varactor D3 and
Varactor D4；
One end of the inductance L4 and radio frequency output port are electrically connected, and the other end of inductance L4 and one end of inductance L3 connect
One end of ground, the other end of inductance L3 and capacitor C2 are electrically connected, the other end of capacitor C2 respectively with one end of resistance R3, resistance
The anode of one end of R4, the cathode of varactor D3 and varactor D4 is electrically connected, the other end of resistance R3 and transfiguration
The anode of diode D3 is electrically connected, and the other end of resistance R4 and the cathode of varactor D4 are electrically connected, and the one of capacitor C5
End and the anode of varactor D3 are electrically connected, and one end of capacitor C6 and the cathode of varactor D4 are electrically connected, capacitor
The other end of C5 and the other end of capacitor C6 are grounded, and the cathode and digital control circuit of varactor D4 is electrically connected, and are become
The other end of the anode and resistance R46 that hold diode D3 is electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920325389.5U CN209419615U (en) | 2019-03-14 | 2019-03-14 | A kind of 30MHz-512MHz wide-band numerical-control frequency hopping filter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920325389.5U CN209419615U (en) | 2019-03-14 | 2019-03-14 | A kind of 30MHz-512MHz wide-band numerical-control frequency hopping filter |
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| CN209419615U true CN209419615U (en) | 2019-09-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112003586A (en) * | 2020-08-24 | 2020-11-27 | 武汉博畅通信设备有限责任公司 | Four-in-one co-site filter |
-
2019
- 2019-03-14 CN CN201920325389.5U patent/CN209419615U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112003586A (en) * | 2020-08-24 | 2020-11-27 | 武汉博畅通信设备有限责任公司 | Four-in-one co-site filter |
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