CN201601667U - Portable scatter communication device - Google Patents
Portable scatter communication device Download PDFInfo
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- CN201601667U CN201601667U CN2010201216778U CN201020121677U CN201601667U CN 201601667 U CN201601667 U CN 201601667U CN 2010201216778 U CN2010201216778 U CN 2010201216778U CN 201020121677 U CN201020121677 U CN 201020121677U CN 201601667 U CN201601667 U CN 201601667U
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Abstract
The utility model discloses a portable scatter communication device, which relates to low-capacity scatter communication equipment in the field of scatter communication. The portable scatter communication device consists of high-frequency devices, a low-frequency device, a subscriber multiplex device, an antenna and the like. The low-frequency device and the two high-frequency devices are split, and an intermediate-frequency cable capable of lengthening to 100m is connected among the low-frequency device and the two high-frequency devices so as to complete transmission of multiple frequency signals, thereby simplifying equipment and realizing scatter communication. The scatter communication device has the advantages of high integration degree, simple and convenient operation, stable and reliable performance and the like, and is particularly suitable to be used as a portable or fixed scatter communication device in a low-capacity scatter communication system.
Description
Technical field
The utility model relates to a kind of lightweight scatter communication device in the scatter communication field, is specially adapted to do in the scatter communication system of low capacity portable or fixing scatter communication equipment.
Background technology
Traditional scatter communication device is because bulky, complex structure and power hungry, substantially all adopt the integrated application form of a plurality of equipment, the distance of connecting line can not be too far away between each equipment, the equipment cost that causes thus is higher, the shortcoming of mobility difference, has limited the extensive use of scatter communication in each field greatly.
The utility model content
The purpose of this utility model is to avoid the weak point in the above-mentioned background technology and a kind of low capacity is provided, the lightweight scatter communication device of pocket, the utility model not only fixedly use also can carry out motor-driven open-minded, low frequency equipment and two high-frequency apparatus split designs have been adopted, connecting between low frequency equipment and two high-frequency apparatus utilizes can reach 100 meters immediate frequency cables respectively, 8 heavy space/frequency diversity techniques have been adopted, the economy of equipment not only, reliability and mobility had obtained tangible improvement more in the past, and had obviously increased the adaptability to complicated geographical environment of scatter communication equipment.The utlity model has little, in light weight, the integrated degree height of volume, characteristics such as easy and simple to handle.
The purpose of this utility model is achieved in that it comprises user's multiplexing equipment, low frequency equipment, first high-frequency apparatus, second high-frequency apparatus, first antenna, second antenna; Wherein user's multiplexing equipment input port 1 is connected with outside speech transmit port A, input port 2 is connected with external asynchronous data sending terminal mouth B, input port 3 is connected with outside lan data transmit port C, output port 4 is connected with speech receiving port D, output port 5 is connected with external asynchronous Data Receiving port E, output port 6 is connected with outside lan data receiving port F, and output port 7 and input port 8 are connected the input port 3 and the output port 4 of low frequency equipment respectively; Low frequency equipment input port 1, output port 2 connect the transmit port G and the receiving port H of outside duties speech respectively, input/output end port 5 connects the input/output end port 1 of first high-frequency apparatus, and input/output end port 6 connects the input/output end port 1 of second high-frequency apparatus; First high frequency is established 3 input/output end ports, 2 pin and is linked to each other by the radio frequency input/output end port 1 of radio frequency cable with first antenna 5; Input/output end port 2 pin of second high-frequency apparatus link to each other by the radio frequency input/output end port 1 of radio frequency cable with second antenna 6.
The utility model low frequency equipment passes filter by putting in auxiliary multiplexer, modulator, the demodulator, first, put in second, mixing, mix and pass filter and monitoring is formed.Wherein the input port 1 of auxiliary multiplexer connects outside duties words transmit port G, output port 2 connects outside duties words receiving port H, input port 3, output port 4 connect user's multiplexing equipment output port 7, input port 8 respectively, output port 5 connects the input port 1 of modulator, input/output end port 6 connects the input/output end port 1 of monitoring, and input port 7 connects the output port 1 of demodulator; The input/output end port 2 of modulator connects the input/output end port 2 of monitoring, and input port 3 is connected output port 2 and the input port 3 that mixes the biography filter respectively with output port 4, and output port 5 connections mix the input port 2 that passes filter; The input/output end port 2 of demodulator connects the input/output end port 5 of monitoring, and input port 3 connects the output port 4 that mixes the biography filter, and input port 4 connects the output port of putting in first 2, and input port 5 connects the output port of putting in second 2; The input port of putting in first 1 connects the output port 6 that mixes the biography filter; The input port of putting in second 1 connects the output port 3 that mixes the biography filter; Mix the input/output end port 3 that the input/output end port 1 that passes filter connects monitoring, input/output end port 5 connects the input/output end port 1 of first high-frequency apparatus; Mix the input/output end port 4 that the input/output end port 1 that passes filter connects monitoring, input/output end port 6 connects input/output end port 1 pin of second high-frequency apparatus.
The utility model first high-frequency apparatus is made up of mixed biography filter, upconverter, frequency synthesizer, power amplifier, low-converter, frequency synthesizer, LNA, duplexer, monitoring, crystal oscillator.Wherein mix the input/output end port 5 that the input/output end port 1 that passes filter connects low frequency equipment, output port 2 connects the input port 1 of upconverter, input/output end port 3 connects the input/output end port 1 of monitoring, input port 4 connects the output port 1 of crystal oscillator, and input port 5 connects the output port 1 of low-converter; The input/output end port 2 of upconverter connects the input/output end port 2 of monitoring, and input port 3 connects the output port 3 of frequency synthesizer; The input port 1 of frequency synthesizer connects the output port 2 of crystal oscillator, and input/output end port 2 connects the input/output end port 3 of monitoring; Output port 2 pin of power amplifier connect input port 1 pin of duplexer; The input port 2 of low-converter connects the output port 3 of frequency synthesizer, and input port 3 connects the output port 1 of LNA; The input port 1 of frequency synthesizer connects the output port 3 of crystal oscillator, and input/output end port 2 connects the input/output end port 4 of monitoring; Duplexer input/output end port 2 link to each other with the input/output end port 1 of first antenna by radio frequency cable.
The utility model second high-frequency apparatus is also formed by mixing biography filter, upconverter, frequency synthesizer, power amplifier, low-converter, frequency synthesizer, LNA, duplexer, monitoring and crystal oscillator, and its circuit unit and operation principle are identical with first high-frequency apparatus.
The utility model is compared background technology and is had following advantage:
1. the utility model has adopted low frequency equipment 2 and first high- frequency apparatus 3,4 splits of second high-frequency apparatus to design, low frequency equipment 2 is connected with first high-frequency apparatus 3, second high-frequency apparatus 4 utilizes one can reach the transmitted in both directions that 100 meters immediate frequency cables have been finished intermediate-freuqncy signal, 10MHz, pilot signal respectively, simplify equipment, improved serviceability.This design reduced individual equipment size, alleviated the weight of individual equipment, make things convenient for the moving of equipment, installation, maintenance, increased adaptability, the flexibility of equipment.Equipment promptly can be used as fixed station and uses, and also can be used as to move station, entrucking use.
2. the utility model integrated mixed biography filter, upconverter, frequency synthesizer, power amplifier, low-converter, frequency synthesizer, LNA, duplexer, monitoring, crystal oscillator in same high frequency cabinet, reduced the volume and the weight of traditional scatter communication system greatly, the maneuverability of equipment is significantly improved.
3. critical piece of the present utility model adopts extensive field programmable device to make, and therefore can realize modification to this device operating parameters neatly by disposing different programs, satisfies the requirement of different user.
4. the utility model has adopted 8 heavy diversity techniques, has not only strengthened the anti-fading ability of communication system, and has simplified transceiver in the communication system, has saved cost, helps promoting scatter communication equipment towards lightweight and miniaturization development.
5. the integrated degree height of the utility model, volume is little, and is in light weight, stable and reliable for performance, easy to maintenance.
Description of drawings
Fig. 1 is the electric functional-block diagram of the utility model embodiment;
Fig. 2 is the electric functional-block diagram of the utility model low frequency equipment 2 embodiment;
Fig. 3 is the electric functional-block diagram of the utility model first high-frequency apparatus 3 embodiment;
Fig. 4 is the electric functional-block diagram of the utility model second high-frequency apparatus 4 embodiment.
Embodiment
Referring to figs. 1 through Fig. 4, it comprises user's multiplexing equipment 1, low frequency equipment 2, first high-frequency apparatus 3, second high-frequency apparatus 4, first antenna 5, second antenna 6 the utility model, and Fig. 1 is an electric functional-block diagram of the present utility model, and embodiment presses Fig. 1 connection line.Wherein the effect of user's multiplexing equipment 1 is a multiple connection decomposition function of finishing 2 road speeches, two-way asynchronous data and lan data; Low frequency equipment 2 is finished the modulation and demodulation function of scatter communication group road transmission; First high-frequency apparatus 3 and second high-frequency apparatus 4 are mainly finished the mapping function between intermediate-freuqncy signal and the radiofrequency signal, and the signal of sending and receiving simultaneously carries out filtering and amplification.First antenna 5 and second antenna 6 are used to transmit and receive radiofrequency signal.
The effect of the utility model low frequency equipment 2 has three: the one, and the group signals that user's multiplexing equipment 1 is imported carries out intermediate frequency Modulation, and the double frequency diversity intermediate-freuqncy signal after the modulation is divided into its output 5, the 6 pin input of two routes and imports first high-frequency apparatus 3, second high-frequency apparatus 4 respectively; The 2nd, to carrying out demodulation from the intermediate-freuqncy signal of first high-frequency apparatus 3, second high-frequency apparatus 4, the output group signals is given user's multiplexing equipment 1, three after the demodulation, and first high-frequency apparatus 3, second high-frequency apparatus 4 are monitored.Low frequency equipment 2 puts 11 by putting in the auxiliary multiplexer 7, modulator 8, demodulator 9, first in 10, second, mix and pass filter 12, mix and pass filter 13 and monitor 14 and form, Fig. 2 is the electrical schematic diagram of the utility model low frequency equipment 2, and embodiment presses Fig. 2 connection line.Wherein multiplexer 7 is assisted in the group signals input of user's multiplexing equipment 1 output, auxiliary multiplexer 7 carries out duties words and group signals to input to modulator 8 after the multiple connection, export the two-way modulation signal after modulator 8 is modulated input signal and give mixed biography filter 12 respectively, mix biography filter 13, mixed biography filter 12, the mixed filter 13 that passes are exported to first high-frequency apparatus 3 and second high-frequency apparatus 4 to intermediate-freuqncy signal respectively; Two-way receiving intermediate frequency signal from first high-frequency apparatus 3 and second high-frequency apparatus 4 is input to mixed filter 12, the mixed filter 13 that passes of passing respectively, put in first and put 11 in 10, second and respectively receiving intermediate frequency signal is carried out AGC and amplify, receiving intermediate frequency signal after the amplification enters demodulator 9 and carries out the low frequency demodulation, demodulator 9 output baseband signals are sent into auxiliary multiplexer 7, auxiliary 7 pairs of baseband signals of multiplexer are carried out tap, be transformed to duties voice signal and group signals, the duties voice signal is exported to the duties phone, and group signals is exported to user's multiplexing equipment 1; The effect of monitoring 14 is that each parts in the low frequency equipment 2, high-frequency apparatus 3 and high-frequency apparatus 4 are monitored; Mix to pass filter 12 effects one and be after closing the road and export to high-frequency apparatus 3 by 5 pin from the pilot signal of monitoring 14 with from the modulation signal of modulator 8, effect two is to receive from receiving intermediate frequency signal, crystal oscillator signal and the pilot signal of high-frequency apparatus 3 by an immediate frequency cable input, and put 10 during receiving intermediate frequency signal exported to, the crystal oscillator signal is exported to modulator 8 and demodulator 9, pilot signal is exported to monitoring 14; Mixing the effect one that passes filter 13 is to export to high-frequency apparatus 4 by 5 pin after closing the road with the pilot signal of monitoring 14 with from the intermediate-freuqncy signal of modulator 8, effect two is to receive from receiving intermediate frequency signal, crystal oscillator signal and the pilot signal of high-frequency apparatus 4 by an immediate frequency cable input, and put 11 during receiving intermediate frequency signal exported to, pilot signal is exported to monitoring 14.
3 effects of the utility model first high-frequency apparatus have three: the one, will carry out being input to first antenna 5 by port 2 after frequency spectrum shift and the power amplification from low frequency equipment 2 modulated intermediate frequency signals; The 2nd, receive radiofrequency signal, and input to low frequency equipment 2 by its input/output end port 1 after converting thereof into receiving intermediate frequency signal from first antenna 5; The 3rd, for low frequency equipment 2 provides high stable crystal oscillator signal and accepts its monitoring.Fig. 3 is the electrical schematic diagram of the utility model first high-frequency apparatus 3, and embodiment presses Fig. 3 connection line.First high-frequency apparatus 3 is made up of mixed biography filter 15, upconverter 16, frequency synthesizer 17, power amplifier 18, low-converter 19, frequency synthesizer 20, LNA 21, duplexer 22, monitoring 23, crystal oscillator 24.Wherein the modulation signal input of low frequency equipment 2 outputs mixes and passes filter 15, mix biography filter 15 modulation signal is input to upconverter 16, and the local oscillation signal that produces with frequency synthesizer 17 in upconverter 16 carries out mixing and obtains radiofrequency signal, radiofrequency signal input power amplifier 18,18 pairs of radiofrequency signals of power amplifier carry out power amplification and with its input duplexer 22, duplexer 22 exports this signal to antenna 5; Received RF signal input duplexer 22 from antenna 5, duplexer 22 is this signal input LNA 21,21 pairs of received RF signals of LNA carry out the low noise amplification and the signal after amplifying are outputed to low-converter 19, the local oscillation signal that received RF signal after the amplification produces with frequency synthesizer 20 in low-converter 19 carries out mixing and obtains receiving intermediate frequency signal, and receiving intermediate frequency signal passes the input/output end port 5 of filter 15 by its input/output end port 1 input low frequency equipment 2 by mixing; The effect one that mix to pass filter 15 be will monitoring 23 pilot signal, export to low frequency equipment 2 by 1 pin after closing the road from the receiving intermediate frequency signal of low-converter 19 with from the crystal oscillator signal of crystal oscillator 24, effect two is to receive from pilot signal and the modulation signal of low frequency equipment 2 by an immediate frequency cable input, and modulation signal exported to upconverter 16, pilot signal is exported to monitoring 23; The effect of monitoring 23 is that each parts in the high-frequency apparatus 3 are monitored, and accepts the monitoring of low frequency equipment 2; The effect of crystal oscillator 24 is to provide high stable crystal oscillator signal for frequency synthesizer 17, frequency synthesizer 20 and low frequency equipment 2.
The utility model second high-frequency apparatus 4 circuit units, operation principle and effect are identical with first high-frequency apparatus 3, Fig. 4 is the electrical schematic diagram of the utility model second high-frequency apparatus 4, second high-frequency apparatus 4 is made up of mixed biography filter 25, upconverter 26, frequency synthesizer 27, power amplifier 28, low-converter 29, frequency synthesizer 30, LNA 31, duplexer 32, monitoring 33, crystal oscillator 34, and embodiment presses Fig. 4 connection line.
The utility model operation principle is as follows:
The transmission of 2 tunnel voice exchange user trunk lines, 2 tunnel asynchronous datas and 1 road LAN business is supported in the native system support.Make a start, speech and data message are multiplexed to group signals by user's multiplexing equipment 1, and group signals is encrypted in user's multiplexing equipment 1 again, and the group signals after the encryption is delivered to 2 groups of mouths of scatter communication low frequency equipment by the group crossing by cable; The auxiliary multiplexer of scatter communication low frequency equipment 2 converts group signals to digital signal, through differential coding, finishes the signal modulation, two frequency BPSK modulation signals in the output two-way band; The two paths of signals of output is given first high-frequency apparatus 3, second high-frequency apparatus 4 respectively; First high-frequency apparatus 3, second high-frequency apparatus 4 are finished it are amplified to certain power from the frequency spectrum shift of if-to-rf and with it, after deliver to first antenna 5 respectively, second antenna 6 is launched.
Receiving terminal, antenna the 1, second antenna 6 all receive the signal that two antennas in opposite end are sent, and this signal arrives first high-frequency apparatus 3, second high-frequency apparatus 4 respectively through feed, cable; First high-frequency apparatus 3, second high-frequency apparatus 4 after filtering, carry out the radiofrequency signal that receives to received signal low noise and amplify, and the signal after the amplification is transformed into intermediate-freuqncy signal, is input to the port 5 and the port 6 of low frequency equipment 2 respectively by cable; In low frequency equipment 2, intermediate-freuqncy signal is finished the addition of eightfold diversity signal base band and is merged through amplification, demodulation process; Signal after the demodulation passes through differential decoding and finishes the tap of information, restore the duties words, simultaneously group signals is outputed to the group crossing of user's multiplexing equipment 1 by group's mouth, user's multiplexing equipment 1 is decrypted the group signals from low frequency equipment 2, finish tap and handle, recover speech and data-signal.
The utility model mounting structure is as follows: user's multiplexing equipment (1) adopts 19 with low frequency equipment (2) cabinet, and " standard PC case, first high-frequency apparatus (3), second high-frequency apparatus (4) adopt sealed cabinet.User's multiplexing equipment (1) overall dimension (length * wide * height) is 483mm * 425mm * 44mm, and low frequency equipment (2) overall dimension (length * wide * height) is 483mm * 425mm * 222mm.High-frequency apparatus (3), high-frequency apparatus (4) adopt sealed cabinet, and its overall dimension (length * wide * height) is 400mm * 470mm * 240mm.
High-frequency apparatus can be hung on the mast and use, and all devices connector on the plate, adopts the back cabling mode to connect the assembly cost utility model in the back.
Claims (4)
1. lightweight scatter communication device, it comprises user's multiplexing equipment (1), first antenna (5), second antenna (6), it is characterized in that: also comprise low frequency equipment (2), first high-frequency apparatus (3), second high-frequency apparatus (4); Wherein user's multiplexing equipment (1) input port 1 is connected with outside speech transmit port A, input port 2 is connected with external asynchronous data sending terminal mouth B, input port 3 is connected with outside lan data transmit port C, output port 4 is connected with speech receiving port D, output port 5 is connected with external asynchronous Data Receiving port E, output port 6 is connected with outside lan data receiving port F, and output port 7 and input port 8 pin are connected the input port 3 and the output port 4 of low frequency equipment (2) respectively; Low frequency equipment (2) input port 1, output port 2 connect the transmit port G and the receiving port H of outside duties speech respectively, input/output end port 5 connects the input/output end port 1 of first high-frequency apparatus (3), and input/output end port 6 connects the input/output end port 1 of second high-frequency apparatus (4); High-frequency apparatus (3) input/output end port 2 pin link to each other by the radio frequency input/output end port 1 of radio frequency cable with first antenna (5); Input/output end port 2 pin of second high-frequency apparatus (4) link to each other by the radio frequency input/output end port 1 of radio frequency cable with second antenna (6).
2. a kind of lightweight scatter communication device according to claim 1 is characterized in that: low frequency equipment (2) puts (11) by putting in auxiliary multiplexer (7), modulator (8), the demodulator (9), first in (10), second, mix to pass filter (12), mix and pass filter (13) and monitoring (14) is formed; Wherein the input port 1 of auxiliary multiplexer (7) connects outside duties words transmit port G, its output port 2 connects outside duties words receiving port H, its input port 3 is connected user's multiplexing equipment (1) output port 7 and input port 8 respectively with output port 4, its output port 5 connects the input port 1 of modulator (8), input/output end port 6 connects the input/output end port 1 of monitoring (14), and its input port 7 connects the output port 1 of demodulator (9); The input/output end port 2 of modulator (8) connects the input/output end port 2 of monitoring (14), its input port 3 is connected output port 2 and the input port 3 that mixes biography filter (12) respectively with output port 4, and its output port 5 connects the input port 2 that mixes biography filters (13); The input/output end port 2 of demodulator (9) connects the input/output end port 5 of monitoring (14), its input port 3 connects the output port 4 that mixes biography filter (12), its input port 4 connects the output port 2 of putting (10) in first, and its input port 5 connects the output port 2 of putting (11) in second; The input port 1 of putting (10) in first connects the output port 6 that mixes biography filter (12); The input port 1 of putting (11) in second connects the output port 3 that mixes biography filter (13); Mix the input/output end port 3 that the input/output end port 1 that passes filter (12) connects monitoring (14), its input/output end port 5 connects the input/output end port 1 of first high-frequency apparatus (3); Mix the input/output end port 4 that the input/output end port 1 that passes filter (13) connects monitoring (14), its input/output end port 6 connects the input/output end port 1 of second high-frequency apparatus (4).
3. a kind of lightweight scatter communication device according to claim 1 and 2 is characterized in that: first high-frequency apparatus (3) is made up of mixed biography filter (15), upconverter (16), frequency synthesizer (17), power amplifier (18), low-converter (19), frequency synthesizer (20), LNA (21), duplexer (22), monitoring (23), crystal oscillator (24); Wherein mix the input/output end port 5 that the input/output end port 1 that passes filter (15) connects low frequency equipment (2), its output port 2 connects the input port 1 of upconverter (16), its input/output end port 3 connects the input/output end port 1 of monitoring (23), its input port 4 connects the output port 1 of crystal oscillator (24), and its input port 5 connects the output port 1 of low-converter (19); The input/output end port 2 of upconverter (16) connects the input/output end port 2 of monitoring (23), and its input port 3 connects the output port 3 of frequency synthesizer (17), and its output port 4 pin connect the input port 1 of power amplifier (18); The input port 1 of frequency synthesizer (17) connects the output port 2 of crystal oscillator (24), and its input/output end port 2 connects the input/output end port 3 of monitoring (23); The output port 2 of power amplifier (18) connects the input port 1 of duplexer (22); The input port 2 of low-converter (19) connects the output port 3 of frequency synthesizer (20), and its input port 3 connects the output port 1 of LNA (21); The input port 1 of frequency synthesizer (20) connects the output port 3 of crystal oscillator (24), and its input/output end port 2 connects the input/output end port 4 of monitoring (23); The input port 2 of LNA (21) connects the output port 3 of duplexer (22); Duplexer (22) input/output end port 2 link to each other by the input/output end port 1 of radio frequency cable with antenna (5).
4. a kind of lightweight scatter communication device according to claim 3 is characterized in that: second high-frequency apparatus (4) is made up of mixed biography filter (25), upconverter (26), frequency synthesizer (27), power amplifier (28), low-converter (29), frequency synthesizer (30), LNA (31), duplexer (32), monitoring (33), crystal oscillator (34); Wherein mix the input/output end port 6 that the input/output end port 1 that passes filter (25) connects low frequency equipment (2), its output port 2 pin connect the input port 1 of upconverter (26), its input/output end port 3 pin connect the input/output end port 1 of monitoring (33), its input port 4 connects the output port 1 of crystal oscillator (34), and its input port 5 connects the output port 1 of low-converter (29); The input/output end port 2 of upconverter (26) connects the input/output end port 2 of monitoring (33), and its input port 3 connects the output port 3 of frequency synthesizer (27), and its output port 4 pin connect the input port 1 of power amplifier (28); The input port 1 of frequency synthesizer (27) connects the output port 2 of crystal oscillator (34), and its input/output end port 2 connects the input/output end port 3 of monitoring (33); The output port 2 of power amplifier (28) connects the input port 1 of duplexer (32); The input port 2 of low-converter (29) connects the output port 3 of frequency synthesizer (30), and its input port 3 connects the output port 1 of LNA (31); The input port 1 of frequency synthesizer (30) connects the output port 3 of crystal oscillator (34), and its input/output end port 2 connects the input/output end port 4 of monitoring (33); The input/output end port 2 of duplexer (32) links to each other by the input/output end port 1 of radio frequency cable with second antenna (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201216778U CN201601667U (en) | 2010-03-03 | 2010-03-03 | Portable scatter communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201216778U CN201601667U (en) | 2010-03-03 | 2010-03-03 | Portable scatter communication device |
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| Publication Number | Publication Date |
|---|---|
| CN201601667U true CN201601667U (en) | 2010-10-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201216778U Expired - Fee Related CN201601667U (en) | 2010-03-03 | 2010-03-03 | Portable scatter communication device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108616304A (en) * | 2018-03-29 | 2018-10-02 | 中国人民解放军空军工程大学 | A kind of vehicle-mounted multirouting networking tropospheric scatter communication system |
-
2010
- 2010-03-03 CN CN2010201216778U patent/CN201601667U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108616304A (en) * | 2018-03-29 | 2018-10-02 | 中国人民解放军空军工程大学 | A kind of vehicle-mounted multirouting networking tropospheric scatter communication system |
| CN108616304B (en) * | 2018-03-29 | 2021-06-11 | 中国人民解放军空军工程大学 | Vehicle-mounted multi-routing networking troposphere scattering communication system |
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Granted publication date: 20101006 Termination date: 20190303 |
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| CF01 | Termination of patent right due to non-payment of annual fee |