CN201515363U - Broad band receiver - Google Patents
Broad band receiver Download PDFInfo
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- CN201515363U CN201515363U CN200920176660XU CN200920176660U CN201515363U CN 201515363 U CN201515363 U CN 201515363U CN 200920176660X U CN200920176660X U CN 200920176660XU CN 200920176660 U CN200920176660 U CN 200920176660U CN 201515363 U CN201515363 U CN 201515363U
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Abstract
The utility model provides a broad band receiver, relates to the field of electronic communications, and aims to solve the technical problems that the traditional receiver cannot satisfy the gradually demanding index requirements of the industry in the aspects of linearity, dynamic range, sensitivity, anti-interference ability, adaptability and the like. The broad band receiver consists of a power supply, a local oscillator module, a reception channel and a numerical control part which are packaged in independent cavities separately. The utility model is suitable for the design of broad band receivers.
Description
Technical field
The utility model relates to electronic communication field, particularly a kind of broadband receiver that is used for.
Background technology
General purpose receiver is used in army can be used as frequency monitoring, and the enemy broadcasting station signal is monitored and detected, and can be used in the identification of friend or foe, IFF.High-performance, the broadband general purpose receiver of high integration in modern war, have been extensive use of both at home and abroad.On civilian, can be widely used in civil aviation, space flight, maritime communication, scientific investigation and the aspect such as reconnoitre.
Modern general purpose receiver is in design and realize more and more tending to high-performance, the high integration direction develops.On performance, modern general purpose receiver mainly is to aspect development such as high linearity, great dynamic range, high sensitivity, high-resolution.Along with the fast development of modern modulation system, and the degree of crowding of wireless frequency spectrum increasingly sharpens, and the performance and the index of aspects such as the linearity of receiver, dynamic range, sensitivity, antijamming capability, adaptability proposed more and more harsher requirement.This just requires modern general purpose receiver under the prerequisite that guarantees input ability (being high sensitivity), improve the linearity of receiver as much as possible, make distorted signals minimum, the error rate minimum: the dynamic range of broadening receiver as much as possible makes the fitness of receiver bigger, antijamming capability is stronger.
Summarize it, mainly there is the deficiency of following aspect in existing general purpose receiver:
1. the linearity is low, dynamic range is not enough;
2. input ability;
3. distorted signals is big, the error rate is higher;
4. dynamic range is narrower, antijamming capability is relatively poor.
Summary of the invention
The utility model is intended to solve traditional receiver can not satisfy the harsh day by day technical problems such as index request of the industry at aspects such as the linearity, dynamic range, sensitivity, antijamming capability, adaptability, so that a kind of high linearity, great dynamic range, high sensitivity, high-resolution, distorted signals is little, the error rate is low, fitness is bigger, antijamming capability is stronger broadband receiver to be provided.
The purpose of this utility model is achieved through the following technical solutions.
Broadband receiver of the present utility model, by power supply, the local oscillator module, receive path and numerical control partly constitute, the input of numerical-control attenuator 2 connects radio-frequency signal source 1, the input of two switches 3 is selected in its output connection one, an output of switch 3 connects straight-through 4 input, its another output connects the input of amplifier 5, straight-through 4 and the output of amplifier 5 all be connected to an input that selects two switches 6, the output of switch 6 and one selects the input of two switches 7 to be connected, two outputs of switch 7 select the input of six switches 8 and switch 9 to be connected with two one respectively, 6 outputs of switch 8 select 6 inputs of six switches 14 to be connected with one after being connected in series 6 preselection filters respectively, 6 outputs of switch 9 select 6 inputs of six switches 15 to be connected with one after being connected in series 6 preselection filters respectively, the output of switch 14 and switch 15 all selects the input of two switches 16 to be connected with one, the output of switch 16 and one selects the input of two switches 17 to be connected, the output of switch 17 wherein selects the input of two switches 20 to be connected with one in straight-through 18 backs of one tunnel serial connection, another serial connection amplifier 19 backs, road are connected the output of switch 20 with the input of switch 20, the output of local oscillator 1 is connected with the input of first frequency mixer 21; Output series connection cavity fluid filter 23 backs of first frequency mixer 21 are connected with the input of amplifier 24, and the output of the output of amplifier 24, local oscillator 2 26 is connected with the input of second frequency mixer 25; The output serial connection LC filter 27 of second frequency mixer 25, amplifier 28, two-stage numerical- control attenuator 29,30 backs are connected with the input of amplifier 31, and the output of the output of amplifier 31, local oscillator 3 33 is connected with the input of three-mixer 32; The output serial connection LC filter 34 of three-mixer 32, amplifier 35, numerical-control attenuator 36, amplifier 37 backs select the input of six switches 38 to be connected with one, 6 outputs of switch 38 select 6 inputs of six switches 41 to be connected with one after being connected in series 6 preselection filters respectively, the output serial connection amplifier 42 of switch 41, amplifier 43 back output final signals 44.
Broadband receiver of the present utility model, wherein said local oscillator 1 is a phase-locked loop, signal is 3544～6524MHz.
Broadband receiver of the present utility model, wherein said local oscillator 2 26 is the 3200MHz point-frequency signal.
Broadband receiver of the present utility model, wherein said local oscillator 3 33 adopts thin stepping source, and local oscillation signal is 394～390MHz.
Broadband receiver of the present utility model, wherein said power supply, local oscillator module, receive path and numerical control partly are divided in the individual cavity.
Broadband receiver of the present utility model, wherein said individual cavity top is equipped with independent cover plate, is provided with an encapsulation top board on other cavity and the aforementioned individual cavity in addition.
The beneficial effect of the utility model broadband receiver:
1. integrated use Digital Signal Processing, radio-frequency channel designing technique, frequency source designing technique and cavity body structure designing technique have adopted large scale integrated circuit to reduce device, have improved product reliability;
2. realized the ultra broadband reception;
3. high linear, great dynamic range;
High sensitivity, high-resolution, distorted signals is little, the error rate is low;
5. fitness is bigger, antijamming capability is stronger;
6. volume is little.
Description of drawings
Fig. 1 circuit theory diagrams of the present utility model
Number in the figure explanation: 1 radio-frequency signal source, 2 numerical-control attenuators, 3 switches, 4 is straight-through, 5 amplifiers, 6 switches, 7 switches, 8 switches, 9 switches, 10 preselection filters, 11 preselection filters, 12 preselection filters, 13 preselection filters, 14 switches, 15 switches, 16 switches, 17 switches, 18 is straight-through, 19 amplifiers, 20 switches, 21 first frequency mixers, 22 local oscillators one, 23 cavity body filters, 24 amplifiers, 25 second frequency mixers, 26 local oscillators two, the 27LC filter, 28 amplifiers, 29 numerical-control attenuators, 30 numerical-control attenuators, 31 amplifiers, 32 three-mixers, 33 local oscillators three, the 34LC filter, 35 amplifiers, 36 numerical-control attenuators, 37 amplifiers, 38 switches, 39 preselection filters, 40 preselection filters, 41 switches, 42 amplifiers, 43 amplifiers, 44 final signals
Embodiment
The utility model detailed structure, application principle, effect and effect with reference to accompanying drawing 1, are illustrated by following execution mode.
Consult shown in Figure 1, broadband receiver of the present utility model, by power supply, the local oscillator module, receive path and numerical control partly constitute, the input of numerical-control attenuator 2 connects radio-frequency signal source 1, the input of two switches 3 is selected in its output connection one, an output of switch 3 connects straight-through 4 input, its another output connects the input of amplifier 5, straight-through 4 and the output of amplifier 5 all be connected to an input that selects two switches 6, the output of switch 6 and one selects the input of two switches 7 to be connected, two outputs of switch 7 select the input of six switches 8 and switch 9 to be connected with two one respectively, 6 outputs of switch 8 select 6 inputs of six switches 14 to be connected with one after being connected in series 6 preselection filters respectively, 6 outputs of switch 9 select 6 inputs of six switches 15 to be connected with one after being connected in series 6 preselection filters respectively, and the output of switch 14 and switch 15 all selects the input of two switches 16 to be connected with one.
The output of switch 16 and one selects the input of two switches 17 to be connected, the output of switch 17 wherein one tunnel serial connection straight-through 18 and selects the input of two switches 20 to be connected, another serial connection amplifier 19 backs, road are connected with the input of switch 20, the output of the output of switch 20, local oscillator 1 is connected with the input of first frequency mixer 21, local oscillator one 22 signals are 3544～6524MHz, in first frequency mixer, 21 places and radiofrequency signal mixing, an intermediate-freuqncy signal of output is 3520～3524MHz.
Output series connection cavity fluid filter 23 backs of first frequency mixer 21 are connected with the input of amplifier 24, the output of the output of amplifier 24, local oscillator 2 26 is connected with the input of second frequency mixer 25, local oscillator 2 26 signals are the point-frequency signal of 3200MHz, and two corresponding intermediate-freuqncy signals are 320～324MHz.
The output serial connection LC filter 27 of second frequency mixer 25, amplifier 28, two-stage numerical- control attenuator 29,30 backs are connected with the input of amplifier 31, the output of the output of amplifier 31, local oscillator 3 33 is connected with the input of three-mixer 32, local oscillator 3 33 signals are 394～390MHz, three corresponding intermediate-freuqncy signals are 70MHz, just intermediate-freuqncy signal.
The output serial connection LC filter 34 of three-mixer 32, amplifier 35, numerical-control attenuator 36, amplifier 37 backs select the input of six switches 38 to be connected with one, 6 outputs of switch 38 select 6 inputs of six switches 41 to be connected with one after being connected in series 6 preselection filters respectively, promptly entering the intermediate frequency output bandwidth selects, signal after bandwidth is selected is exported final signals 44 by output serial connection amplifier 42, amplifier 43 backs of switch 41.
This broadband receiver adopts three grades of super-heterodyne architecture, and by the down-conversion of three relevant local oscillators realization receive frequencies, wherein local oscillator 1 is to be realized by the phase-locked loop that a HMC440 is a phase discriminator; The 100MHz crystal oscillator through 4 frequencys multiplication after as the reference of AD9910, the 50MHz frequency that AD9910 output is fixed is as the reference of phase discriminator HMC440, the phase-locked loop output frequency is 1772～3262MHz, consider overall phase noise, spuious, device self index, in winding, added AD9858 as frequency divider, output frequency is the 4MHz stepping, and the spuious index of full frequency band is very good like this; Output frequency is 3.544～6.524MHz after frequency 2 frequencys multiplication of locking;
For reducing electromagnetic interference, the configuration aspects of this broadband receiver adopts Shielding Design, and the design that is about to power supply, local oscillator module, receive path, digital control part etc. is spaced from each other as far as possible, is produced on the different PCB, is divided in each loculus body of cavity.Whole HFS and low frequency part are separated fully, can avoid each functional circuit phase mutual interference like this, each little cavity shields with minor flaps separately, adds a large cover shielding above again and reaches effect preferably.
Therefore, broadband receiver of the present utility model, integrated use Digital Signal Processing, radio-frequency channel designing technique, frequency source designing technique and cavity body structure designing technique, adopted large scale integrated circuit to reduce device, improved product reliability, realize the ultra broadband reception, had high linearity, great dynamic range, high sensitivity, high-resolution, distorted signals is little, the bit error rate is low, and the plurality of advantages such as fitness is bigger, antijamming capability is stronger, volume is little.
Claims (6)
1. broadband receiver, it is characterized in that: by power supply, the local oscillator module, receive path and numerical control partly constitute, the input of numerical-control attenuator (2) connects radio-frequency signal source (1), the input of two switches (3) is selected in its output connection one, an output of switch (3) connects the input of straight-through (4), its another output connects the input of amplifier (5), the output of straight-through (4) and amplifier (5) all is connected to an input that selects two switches (6), the output and one of switch (6) selects the input of two switches (7) to be connected, two outputs of switch (7) select six switches (8) to be connected with the input of switch (9) with two one respectively, 6 outputs of switch (8) select 6 inputs of six switches (14) to be connected with one after being connected in series 6 preselection filters respectively, 6 outputs of switch (9) select 6 inputs of six switches (15) to be connected with one after being connected in series 6 preselection filters respectively, the output of switch (14) and switch (15) all selects the input of two switches (16) to be connected with one, the output and one of switch (16) selects the input of two switches (17) to be connected, the output of switch (17) wherein selects the input of two switches (20) to be connected with one in one tunnel serial connection straight-through (18) back, another road serial connection amplifier (19) back is connected the output of switch (20) with the input of switch (20), the output of local oscillator one (22) is connected with the input of first frequency mixer (21); Output series connection cavity fluid filter (23) back of first frequency mixer (21) is connected with the input of amplifier (24), and the output of the output of amplifier (24), local oscillator two (26) is connected with the input of second frequency mixer (25); The output serial connection LC filter (27) of second frequency mixer (25), amplifier (28), two-stage numerical-control attenuator (29,30) back are connected with the input of amplifier (31), and the output of the output of amplifier (31), local oscillator three (33) is connected with the input of three-mixer (32); The output serial connection LC filter (34) of three-mixer (32), amplifier (35), numerical-control attenuator (36), amplifier (37) back select the input of six switches (38) to be connected with one, 6 outputs of switch (38) select 6 inputs of six switches (41) to be connected with one after being connected in series 6 preselection filters respectively, the output serial connection amplifier (42) of switch (41), amplifier (43) back output final signal (44).
2. broadband receiver as claimed in claim 1 is characterized in that: described local oscillator one (22) is phase-locked loop, and signal is 3544～6524MHz.
3. broadband receiver as claimed in claim 1 is characterized in that: described local oscillator two (26) is the 3200MHz point-frequency signal.
4. broadband receiver as claimed in claim 1 is characterized in that: described local oscillator three (33) adopts thin stepping source, and local oscillation signal is 394～390MHz.
5. broadband receiver as claimed in claim 1 is characterized in that: described power supply, local oscillator module, receive path and numerical control partly are divided in the individual cavity.
6. broadband receiver as claimed in claim 5 is characterized in that: described individual cavity top is equipped with independent cover plate, is provided with an encapsulation top board on other cavity and the aforementioned individual cavity in addition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920176660XU CN201515363U (en) | 2009-09-08 | 2009-09-08 | Broad band receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920176660XU CN201515363U (en) | 2009-09-08 | 2009-09-08 | Broad band receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201515363U true CN201515363U (en) | 2010-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920176660XU Expired - Fee Related CN201515363U (en) | 2009-09-08 | 2009-09-08 | Broad band receiver |
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| CN (1) | CN201515363U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102571121A (en) * | 2012-02-09 | 2012-07-11 | 成都中亚通茂科技有限公司 | Short wave broadband receiver |
| CN103354474A (en) * | 2013-07-16 | 2013-10-16 | 中国电子科技集团公司第四十一研究所 | Broadband integrated preselector |
| CN103746736A (en) * | 2013-12-13 | 2014-04-23 | 成都九洲迪飞科技有限责任公司 | Integrated test system for 14 channel optical fiber data transmission TR equipment |
-
2009
- 2009-09-08 CN CN200920176660XU patent/CN201515363U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102571121A (en) * | 2012-02-09 | 2012-07-11 | 成都中亚通茂科技有限公司 | Short wave broadband receiver |
| CN103354474A (en) * | 2013-07-16 | 2013-10-16 | 中国电子科技集团公司第四十一研究所 | Broadband integrated preselector |
| CN103354474B (en) * | 2013-07-16 | 2016-12-28 | 中国电子科技集团公司第四十一研究所 | The integrated preselector in a kind of broadband |
| CN103746736A (en) * | 2013-12-13 | 2014-04-23 | 成都九洲迪飞科技有限责任公司 | Integrated test system for 14 channel optical fiber data transmission TR equipment |
| CN103746736B (en) * | 2013-12-13 | 2016-08-24 | 成都九洲迪飞科技有限责任公司 | 14 channel fiber data transmission TR equipment complex test systems |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20170908 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |