CN2545761Y - Mobile multifrequency wave suppressor - Google Patents
Mobile multifrequency wave suppressor Download PDFInfo
- Publication number
- CN2545761Y CN2545761Y CN 02229472 CN02229472U CN2545761Y CN 2545761 Y CN2545761 Y CN 2545761Y CN 02229472 CN02229472 CN 02229472 CN 02229472 U CN02229472 U CN 02229472U CN 2545761 Y CN2545761 Y CN 2545761Y
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- amplifier
- circuit
- antenna
- signal
- relay
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Abstract
The utility model provides a mobile multi-frequency wave suppressor, which consists of a detecting and controlling part, a launching part and a mobile power supply. The launching part consists of a signal generator, a VCO module, a power amplifying circuit, an isolating circuit and an antenna Y2, which can launch mobile communication interference signals. The detecting-controlling part consists of an antenna Y1, a band-pass filter, an AGC low noise amplifier, an isolator, a wave detection circuit, a DC amplifier, a VOMS switch tube and a relay promoting circuit. The mobile communication signals are received and then filtered by the antenna Y1, so a switching amplifier promoting relay closes and the launching part works.
Description
Technical field
The utility model relates to electronic instrument, especially relates to a kind of electromagnetic portable multifrequency wave inhibitor that is used to suppress.
Technical background
The spreading speed of mobile phone is very fast now, therefore a series of problems have also been brought, responsive place and other office that maintains secrecy to some special occasions, how to prevent that mobile communication from divulging a secret and also do not have what way now, China Patent No. 99215785.4 discloses a kind of multifrequency wave inhibitor, when it is worked, can suppress mobile phone communication, but it must allow the equipment of interference signal be fixed on a place and be in emission state always.Can not use for maintaining secrecy of some motor-driven occasions.
Summary of the invention
The purpose of this utility model is to provide a kind of removable detection hunting to go out the uplink and downlink signal of various mobile communcations systems, starts the emitting electrons disturbing wave immediately once just search, and makes the externally portable multifrequency wave inhibitor of communication of mobile phone.
The purpose of this utility model realizes by following technical scheme:
The utility model comprises tracks down part, emission part branch and portable power source are formed, use transmitter when native system is searched control range work as the communication of 825KHZ-960KHZ or 1885KHZ-2025KHZ, the electromagnetic wave of its emission is received by the native system antenna, and convert its electromagnetic wave signal to corresponding high-frequency current, through band pass filter, the outer clutter of filtering band, entering low noise amplifier again amplifies, the signal that is exaggerated enters the wave detector detection again through behind the isolator, and rectification goes out dc signal, amplifies through direct current amplifier again, its dc signal is divided into two-way, one road signal of telecommunication is sent into the low noise amplifier automatic gain control circuit by feedback amplifier, and the gain of may command low noise amplifier makes the receiving unit level of native system moderate, can not transship, another road signal of telecommunication is sent into time-delay and relay circuit, makes the conducting of Voms switching tube, also conducting adhesive of relay, the normally closed point of relay disconnects simultaneously, cuts off the low noise amplifier power supply it is quit work.And make normal battle closed, and connect the radiating portion power supply, make radiating portion launch 825MHZ-960KHZ or 1885-2025MHZ interference signal, behind isolator, enter antenna again and launch with form of electromagnetic wave.
This practical portable multifrequency wave inhibitor, because portable power source is used in design, when the communication that receives 825KHZ-960KHZ or 1885KHZ-2025KHZ by antenna is worked with transmitter, will start transmitter emitting electrons disturbing wave immediately, make externally communication of mobile phone, therefore, it can accomplish mobile detection, and needn't allow wave inhibitor be in the emission operating state always.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
The circuit theory diagrams of a specific embodiment of the present utility model are provided by accompanying drawing 1.It is by tracking down part, and radiating portion and portable power source are formed, and tracks down part and comprises antenna Y1, band pass filter 1, automatic gain control low noise amplifier 2, isolator 3, detection and rectification circuit, direct current amplifier 4, relay 5, VOMS switching tube 6 and feedback amplifier 7 are formed.Antenna Y1 is connected in series band pass filter 1, amplifier 2, isolator 3, the detecting circuit that isolator 3 outputs serial connection is made up of C1, D1, D2, C2, connect direct current amplifier 4 inputs behind the detecting circuit serial connection R1, R3 is connected with direct current amplifier 4 inputs with a R2 end in parallel with R4 serial connection back, and the other end is connected with feedback amplifier 7 inputs with R6 serial connection back, and the output of feedback amplifier is connected with the automatic gain control circuit of amplifier 2, make the receiving unit level of native system moderate, can not transship.The output of amplifier 4 promotes circuit with the time-delay relay of being made up of R5, D3, C3, VOMS switching tube relay 5 and is connected, 2,3 node parallel diode D4 of relay 5,3 nodes are connected with the VOMS switching tube, 4 nodes of normally closed some J1 of relay 5 are connected with amplifier 2,1 node is connected with power supply, and 5 nodes of the J2 of often making war are connected with power amplifier module 8.When promoting circuit, time-delay and relay circuit make the conducting of VOMS pipe, also conducting adhesive of relay, and delayed time 3-8 minute, normally closed some J1 of relay disconnects simultaneously, cut off the low noise amplifier power supply and make its J2 closure that quits work, often makes war, connect the power supply of radiating portion, make and launch 825MHZ-960KHZ or 1885-2025MHZ interference signal process signal generator 9, VCO module 10 and power amplifier module 8 pass through isolator 11, antenna Y2 again, launch with form of electromagnetic wave, with the purpose of transmitting set communication in the control certain limit.
Claims (1)
1, a kind of portable multifrequency wave inhibitor, by tracking down part, radiating portion and portable power source are formed radiating portion by signal generator (9), VCO module (10) power amplification circuit (8) and buffer circuit (11) and antenna Y2 form, can launch the interference handset conversation signal, it is characterized in that: track down the antenna Y1 that part contains serial connection, band pass filter (1), automatic gain control low noise amplifier (2), isolator (3), detecting circuit, direct current amplifier (4), after antenna Y1 receives the mobile communication signal, convert corresponding high-frequency current to, enter amplifier (2) through band pass filter, send into detecting circuit through isolator again, detection, rectification goes out dc signal and amplifies through direct current amplifier, the direct current amplifier output promotes circuit with time-delay relay respectively and is connected with feedback amplifier, the dc signal that direct current amplifier produces is divided into two-way, one road signal of telecommunication is sent into the automatic gain control circuit of low noise amplifier by feedback amplifier, another road signal of telecommunication sends into time-delay and relay promotes circuit, 2 of relay (5), 3 node parallel diode D4,3 nodes link to each other with the VOMS pipe, 4 nodes of normally closed some J1 of relay (5) are connected with amplifier (2), node 1 is connected with power supply, and the J module of often making war (8) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02229472 CN2545761Y (en) | 2002-05-18 | 2002-05-18 | Mobile multifrequency wave suppressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02229472 CN2545761Y (en) | 2002-05-18 | 2002-05-18 | Mobile multifrequency wave suppressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2545761Y true CN2545761Y (en) | 2003-04-16 |
Family
ID=33705775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02229472 Expired - Fee Related CN2545761Y (en) | 2002-05-18 | 2002-05-18 | Mobile multifrequency wave suppressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2545761Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101354412A (en) * | 2008-08-28 | 2009-01-28 | 深圳华为通信技术有限公司 | Apparatus for testing electromagnetic radiation strength |
-
2002
- 2002-05-18 CN CN 02229472 patent/CN2545761Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101354412A (en) * | 2008-08-28 | 2009-01-28 | 深圳华为通信技术有限公司 | Apparatus for testing electromagnetic radiation strength |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |