CN204334595U - A kind of Mobile communication interference unit - Google Patents
A kind of Mobile communication interference unit Download PDFInfo
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- CN204334595U CN204334595U CN201420701859.0U CN201420701859U CN204334595U CN 204334595 U CN204334595 U CN 204334595U CN 201420701859 U CN201420701859 U CN 201420701859U CN 204334595 U CN204334595 U CN 204334595U
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- interference unit
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- mobile communication
- power amplifier
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Abstract
The utility model discloses a kind of Mobile communication interference unit in the communications field, comprise power supply, interference unit and antenna, described interference unit one end is connected with described power supply, and its other end is connected with described antenna; Independent signal transmitter module is provided with in described interference unit; Each described independent signal transmitter module transmitting wave frequency is all not identical, and each described independent signal transmitter module coupling has corresponding described antenna; Described independent signal transmitter module comprises: triangular-wave generator, voltage controlled oscillator and power amplifier; Described voltage controlled oscillator one end is connected with described triangular-wave generator, and its other end is connected with power amplifier; Containing chip in described triangular-wave generator; The amplification chip of low power output is provided with in described power amplifier.The good effect that the utility model brings is: this Mobile communication interference unit can produce large interference radius and the upward signal of only interference handset, its perfect heat-dissipating and can not bring radiation injury.
Description
Technical field
The utility model relates to the communications field, especially relates to a kind of Mobile communication interference unit.
Background technology
Along with the fast development of the communication technology, mobile phone has become people's daily life and the requisite means of communication of work.Because mobile phone is widely used, so this means of communication also becomes illegal tool used in crime, such as examination hall cheating etc.
For the appearance of these phenomenons, the staff of correlative technology field has designed the jamming equipment of some tool function of shielding.Due to the development of science and technology, the kind of emission signal frequency gets more and more, and existing signal disturbing equipment effectively can not shield whole signal and namely disturb radius little, and the radiation intensity of existing equipment is comparatively large, works the mischief to the healthy of people.
As can be seen here, how to work out a kind of Mobile communication interference unit, not only can have large interference radius but also have the equipment of low radiation intensity, can also provide the equipment of the interference signal of multi-frequency, be current those skilled in the art's problem demanding prompt solution simultaneously.
Utility model content
In order to solve the problem, the utility model provides a kind ofly can be possessed large interference radius and have the Mobile communication interference unit of low radiation intensity.
The technical solution adopted in the utility model is a kind of Mobile communication interference unit, comprises power supply, interference unit and antenna, and described interference unit one end is connected with described power supply, and its other end is connected with described antenna; Independent signal transmitter module is provided with in described interference unit; Each described independent signal transmitter module transmitting wave frequency is all not identical, and each described independent signal transmitter module coupling has corresponding described antenna; Described independent signal transmitter module comprises: triangular-wave generator, voltage controlled oscillator and power amplifier; Described voltage controlled oscillator one end is connected with described triangular-wave generator, and its other end is connected with power amplifier; Containing chip in described triangular-wave generator; The amplification chip of low power output is provided with in described power amplifier.
Further, described power supply is powered in AC-DC mode.
Further, the quantity of the interface of described power supply is 1.
Further, the number of described antenna is more than or equal to 2.
Further, the peak power output of the amplification chip of described low power output is 35dBm.
Further, fan is provided with in described interference unit.
Further, the circuit connecting mode of described Mobile communication interference unit is: described triangular-wave generator is connected with described power supply, described triangular-wave generator produces triangular signal at TRI_OUT_1 and TRI_OUT_4 interface, described triangular signal is connected with the potentiometer of amplitude with the described triangular signal frequency of adjustment, again described triangular signal is sent to TRI_IN_4 interface, described triangular signal enters in the VCXO Y1 in described voltage controlled oscillator by TRI_IN_4 interface, 1 pin of described VCXO Y1 exports interference signal, described interference signal sends described power amplifier to by 1 pin of described VCXO Y1, 4 pin of described power amplifier are connected with described power supply the size controlling described power amplifier output power, SAM joint and the described antenna of the described interference signal after described power amplifier amplifies and transmitting radio frequency signal are connected to send described interference signal.
Further, the quantity of described independent signal transmitter module is 8.
Further, the model of described triangular-wave generator is NE555.
Further, the model of described amplification chip is the PF-081 series power amplifier chips of Toshiba.
A kind of Mobile communication interference unit of the utility model, compared with prior art has the following advantages:
The first, the voltage controlled oscillator in this Mobile communication interference unit can produce the signal of different frequency and corresponding with the carrier frequency of communication system, the interference radius of this equipment is increased greatly, effectively can shield the mobile phone signal in certain place.
The second, the adjustment of emission signal frequency scope can also be realized by voltage controlled oscillator, make this equipment only disturb the upward signal of mobile phone and not affect base station, avoid unnecessary dispute.
3rd, the amplification chip of the low power output of this equipment use, each road radiofrequency signal peak power output is 35dBm, meets the requirement of CDC environment and health Related product.
4th, the interference unit inside of this equipment is provided with fan, makes this equipment its hull-skin temperature when normal work remain on about 50 DEG C, can ensure the safety of staff.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model
Fig. 2 is the utility model intermediate cam wave producer circuit theory diagrams
Fig. 3 is potentiometer circuit schematic diagram in the utility model
Fig. 4 is voltage controlled oscillator and power amplifier circuit schematic diagram in the utility model
In figure:
1, power supply 2, interference unit 3, antenna
2.1, triangular-wave generator 2.2, voltage controlled oscillator 2.3, power amplifier
Embodiment
Below in conjunction with accompanying drawing, specific embodiment of the utility model is elaborated.
As Fig. 1,2, shown in 3 and 4, a kind of Mobile communication interference unit, comprises power supply 1, interference unit 2 and antenna 3, and described interference unit 2 one end is connected with described power supply 1, and its other end is connected with described antenna 3.Described power supply 1 is powered in AC-DC mode, to coordinate the various circuit devcies of the circuit of this Mobile communication interference unit inside.The quantity of the interface of described power supply 1 is 1, and this assembling mainly in order to this equipment is more simple.8 independent signal transmitter modules are provided with in described interference unit 2.Wherein the circuit composition of each independent signal transmitter module is identical, includes: triangular-wave generator 2.1, voltage controlled oscillator 2.2 and power amplifier 2.3.Described voltage controlled oscillator 2.2 one end is connected with described triangular-wave generator 2.1, and its other end is connected with power amplifier 2.3.Each described independent signal transmitter module transmitting wave frequency is all not identical, and each described independent signal transmitter module coupling has corresponding described antenna 3.Containing chip in described triangular-wave generator 2.1.The amplification chip of low power output is provided with in described power amplifier 2.3.The peak power output of the amplification chip of described low power output is 35dBm, this assures this equipment and can not cause radiation injury to people.Be provided with fan in described interference unit 2, be convenient to described interference unit 2 and dispel the heat, its hull-skin temperature remains on about 50 DEG C, can ensure the safety of staff.
The operation principle of this Mobile communication interference unit is: power supply 1 adopts AC-DC mode, alternating voltage 220V is converted to direct voltage 5V and exports, and supply interference unit 2, makes it normally work.Wherein the peak power output of power supply 1 is 60W.Interference unit 2 is divided into 8 independent signal transmitter modules according to the carrier frequency of different communication system, and modules circuit composition is all identical, comprises triangular-wave generator 2.1, voltage controlled oscillator 2.2, power amplifier 2.3.These 8 independent signal transmitter modules are without the need to switching, and after power supply 1 starts power supply, these 8 independent signal transmitter modules are opened simultaneously.The interference signal of the frequency that described independent signal transmitter module is launched is as shown in table 1.After energising, the sawtooth waveforms of 30KHz is about by the NE-555 chip generation frequency in triangular-wave generator 2.1, sawtooth waveforms sends into the sweep signal that voltage controlled oscillator 2.2 makes it to produce relevant work frequency range again, and the signal of different frequency launched by this voltage controlled oscillator 2.2 according to its carrier frequency difference.Wherein, each frequency be equivalent in working frequency range of each scan period of voltage controlled oscillator 2.2 adds a broad pulse caused by sawtooth waveforms trace and a burst pulse caused by sawtooth waveforms flyback.The signal of the different frequency launched by voltage controlled oscillator 2.2 enters the PF-081 series power amplifier chips that model is Toshiba, via each road antenna 3, signal is launched again, namely can disturb by full frequency band when interference unit 2 is in running order simultaneously, ensure that this Mobile communication interference unit can disturb full frequency band mobile phone signal.It should be noted that, the switch of power supply 1 is controlled by Infrared remote controller.
Triangular-wave generator 2.1, voltage controlled oscillator 2.2 are connected as follows with the circuit of Pow-er Amplifier 2.3: in circuit, and described triangular-wave generator 2.1 is triangular-wave generator NE555, and described power amplifier 2.2 is power amplifier N1.In working order, this two-way triangular-wave generator NE555 triangular wave oscillating circuit is powered by the power supply 1 of 5V, perimeter circuit working is coordinated to produce triangular wave, triangular wave produces two-way triangular wave from TRI_OUT_1 and TRI_OUT_4 interface respectively, and regulate its frequency and amplitude by potentiometer, signal is sent to TRI_IN_4 interface.Triangular wave interference signal enters VCXO Y1 by TRI_IN_4 interface, 1 pin of VCXO Y1 exports the waveform of corresponding interfering frequency and transmits it to power amplifier N1, the power output size of the voltage control power amplifier N1 that 4 pin of power amplifier N1 are provided by the power supply 1 of 5V, by the sub-miniature A connector of transmitting radio frequency signal and antenna, the interference signal of this frequency range is radiate, reach the object of interference handset signal.
It should be noted that, Fig. 2,3 and 4 is the circuit diagram of the described independent signal transmitter module launching CDMA interference signal, and the circuit theory of other 7 described independent signal transmitter modules is same as described above.
In sum, the utility model produces large interference radius and the upward signal of only interference handset, its perfect heat-dissipating and can not bring radiation injury, solves actual demand, has use value.
Above an embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Table 1
Claims (10)
1. a Mobile communication interference unit, comprise power supply (1), interference unit (2) and antenna (3), it is characterized in that: described interference unit (2) one end is connected with described power supply (1), its other end is connected with described antenna (3);
At least 2 independent signal transmitter modules are provided with in described interference unit (2); Each described independent signal transmitter module transmitting wave frequency is all not identical, and each described independent signal transmitter module coupling has corresponding described antenna (3); Described independent signal transmitter module comprises: triangular-wave generator (2.1), voltage controlled oscillator (2.2) and power amplifier (2.3); Described voltage controlled oscillator (2.2) one end is connected with described triangular-wave generator (2.1), and its other end is connected with power amplifier (2.3); Containing chip in described triangular-wave generator (2.1); The amplification chip of low power output is provided with in described power amplifier (2.3).
2. Mobile communication interference unit according to claim 1, is characterized in that: described power supply (1) is powered in AC-DC mode.
3. Mobile communication interference unit according to claim 1, is characterized in that: the quantity of the interface of described power supply (1) is 1.
4. Mobile communication interference unit according to claim 1, is characterized in that: the number of described antenna (3) is more than or equal to 2.
5. Mobile communication interference unit according to claim 1, is characterized in that: the peak power output of the amplification chip of described low power output is 35dBm.
6. Mobile communication interference unit according to claim 1, is characterized in that: described interference unit is provided with fan in (2).
7. Mobile communication interference unit according to claim 1, is characterized in that: the quantity of described independent signal transmitter module is 8.
8. Mobile communication interference unit according to claim 1, is characterized in that: the model of described triangular-wave generator (2.1) is NE555.
9. Mobile communication interference unit according to claim 1, is characterized in that: the model of described amplification chip is the PF-081 series power amplifier chips of Toshiba.
10. one kind is applied in the circuit structure as the Mobile communication interference unit as described in arbitrary in claim 1-5, it is characterized in that: the circuit connecting mode of described independent signal transmitter module is, described triangular-wave generator (2.1) is connected with described power supply (1), described triangular-wave generator (2.1) produces triangular signal at TRI_OUT_1 and TRI_OUT_4 interface, described triangular signal is connected with the potentiometer of amplitude with the described triangular signal frequency of adjustment, again described triangular signal is sent to TRI_IN_4 interface, described triangular signal enters in the VCXO Y1 in described voltage controlled oscillator (2.2) by TRI_IN_4 interface, 1 pin of described VCXO Y1 exports interference signal, described interference signal sends described power amplifier (2.3) to by 1 pin of described VCXO Y1,4 pin of described power amplifier (2.3) are connected with described power supply (1) size controlling described power amplifier (2.3) power output, SAM joint and the described antenna (3) of described interference signal and transmitting radio frequency signal after described power amplifier (2.3) amplifies are connected to send described interference signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420701859.0U CN204334595U (en) | 2014-11-20 | 2014-11-20 | A kind of Mobile communication interference unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420701859.0U CN204334595U (en) | 2014-11-20 | 2014-11-20 | A kind of Mobile communication interference unit |
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| CN204334595U true CN204334595U (en) | 2015-05-13 |
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| CN201420701859.0U Active CN204334595U (en) | 2014-11-20 | 2014-11-20 | A kind of Mobile communication interference unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104333433A (en) * | 2014-11-20 | 2015-02-04 | 天津光电通信技术有限公司 | Mobile communication interference unit |
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- 2014-11-20 CN CN201420701859.0U patent/CN204334595U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104333433A (en) * | 2014-11-20 | 2015-02-04 | 天津光电通信技术有限公司 | Mobile communication interference unit |
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