CN202696590U - Stepping source wideband receiver - Google Patents
Stepping source wideband receiver Download PDFInfo
- Publication number
- CN202696590U CN202696590U CN 201220279282 CN201220279282U CN202696590U CN 202696590 U CN202696590 U CN 202696590U CN 201220279282 CN201220279282 CN 201220279282 CN 201220279282 U CN201220279282 U CN 201220279282U CN 202696590 U CN202696590 U CN 202696590U
- Authority
- CN
- China
- Prior art keywords
- output
- input
- switch
- switches
- amplifier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Superheterodyne Receivers (AREA)
Abstract
The utility model discloses a stepping source wideband receiver, relates to the field of electronic communication, and aims to solve the technical problems that the conventional receiver cannot meet increasingly-strict index requirements of the industry in terms of linearity, dynamic range, sensitivity, anti-interference capacity, adaptability and the like. A wideband receiver with a narrow stepping source local oscillator circuit provided by the utility model consists of a power supply, a local oscillator module, a receiving channel and a numerical control part, wherein the power supply, the local oscillator module, the receiving channel and the numerical control part are separately arranged in independent cavities. The stepping source wideband receiver is applicable to design of the wideband receiver.
Description
Technical field
The utility model relates to electronic communication field, particularly a kind of broadband receiver for radar system, detecting system and electronic countermeasures field.
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 Bian Biehangkongqi.In modern war, be widely used high-performance both at home and abroad, the broadband general purpose receiver of high integration.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 more and more tends to high-performance, high integration future development on Design and implementation.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 performance and the index of the 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 as much as possible the linearity of receiver, make that distorted signals is minimum, the error rate is minimum: the dynamic range of broadening receiver as much as possible makes the fitness of receiver larger, 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 large, 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 increasingly harsh 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 larger, antijamming capability is stronger stepping source broadband receiver to be provided.
The purpose of this utility model is achieved through the following technical solutions.
Stepping of the present utility model source broadband receiver, by power supply, the local oscillator module, receive path and numerical control partly consist of, 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 respectively 6 preselection filters, 6 outputs of switch 9 select 6 inputs of six switches 15 to be connected with one after being connected in series respectively 6 preselection filters, 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 after one tunnel serial connection straight-through 18, be connected the output of switch 20 with the input of switch 20 behind another road serial connection amplifier 19, the output of local oscillator 1 is connected with the input of the first frequency mixer 21; Be connected with the input of amplifier 24 behind the output series connection cavity fluid filter 23 of the first frequency mixer 21, the output of the output of amplifier 24, local oscillator 2 26 is connected with the input of the second frequency mixer 25; Be connected with the input of amplifier 31 behind the output serial connection LC filter 27 of the second frequency mixer 25, amplifier 28, the two-stage numerical- control attenuator 29,30, the output of amplifier 31 is connected with an input of three-mixer 32; Local oscillator 3 33 is connected in series in turn by crystal oscillator 52, phase discriminator 70, voltage controlled oscillator 71 and four-divider 72 and consists of, and the output of four-divider 72 is connected with another input of three-mixer 32; Select the input of six switches 38 to be connected with one behind the output serial connection LC filter 34 of three-mixer 32, amplifier 35, numerical-control attenuator 36, the amplifier 37,6 outputs of switch 38 select 6 inputs of six switches 41 to be connected with one after being connected in series respectively 6 preselection filters, the output serial connection amplifier 42 of switch 41, amplifier 43 rear output final signals 44; The phase discriminator 70 of local oscillator 3 33 is MAX2150, and its output frequency is 1560-1576MHz, and the output signal frequency of four-divider 72 is 394～390MHz, the 1kHz stepping.
The beneficial effect of the utility model stepping source 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 larger, antijamming capability is stronger;
6. volume is little.
Description of drawings
Fig. 1 circuit theory diagrams of the present utility model
The circuit theory of Fig. 2 the utility model stepping source local oscillator three
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, 27 LC filters, 28 amplifiers, 29 numerical-control attenuators, 30 numerical-control attenuators, 31 amplifiers, 32 three-mixers, 33 local oscillators three, 34 LC filters, 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, 52 crystal oscillators, 70 phase discriminators, 71 voltage controlled oscillators, 72 four-dividers
Embodiment
The utility model detailed construction, application principle, effect and effect with reference to accompanying drawing 1-2, are explained by following execution mode.
Consult shown in Fig. 1-2, stepping of the present utility model source broadband receiver, by power supply, the local oscillator module, receive path and numerical control partly consist of, 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 respectively 6 preselection filters, 6 outputs of switch 9 select 6 inputs of six switches 15 to be connected with one after being connected in series respectively 6 preselection filters, 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 selects the input of two switches 20 to be connected with one after one tunnel serial connection straight-through 18, be connected with the input of switch 20 behind another road serial connection amplifier 19, the output of the output of switch 20, local oscillator 1 is connected with the input of the first frequency mixer 21.
Be connected with the input of amplifier 24 behind the output series connection cavity fluid filter 23 of the first frequency mixer 21, the output of the output of amplifier 24, local oscillator 2 26 is connected with the input of the second frequency mixer 25.
Be connected with the input of amplifier 31 behind the output serial connection LC filter 27 of the second frequency mixer 25, amplifier 28, the two-stage numerical- control attenuator 29,30, the output of amplifier 31 is connected with an input of three-mixer 32.
Select the input of six switches 38 to be connected with one behind the output serial connection LC filter 34 of three-mixer 32, amplifier 35, numerical-control attenuator 36, the amplifier 37,6 outputs of switch 38 select 6 inputs of six switches 41 to be connected with one after being connected in series respectively 6 preselection filters, the output serial connection amplifier 42 of switch 41, amplifier 43 rear output final signals 44.
This stepping source 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 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 structure aspects of this stepping source broadband receiver adopts the shielding design, 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 little cavity of cavity.Whole HFS and low frequency part are separated fully, can avoid like this each functional circuit phase mutual interference, each little cavity shields with minor flaps separately, and the above adds a large cover shielding again and reaches preferably effect.
Therefore, stepping of the present utility model source broadband receiver, 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 error rate is low, and the plurality of advantages such as fitness is larger, antijamming capability is stronger, volume is little.
Claims (1)
1. stepping source broadband receiver, it is characterized in that: by power supply, the local oscillator module, receive path and numerical control partly consist of, 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 respectively 6 preselection filters, 6 outputs of switch (9) select 6 inputs of six switches (15) to be connected with one after being connected in series respectively 6 preselection filters, 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 after one tunnel serial connection straight-through (18), be connected the output of switch (20) with the input of switch (20) behind another road serial connection amplifier (19), the output of local oscillator one (22) is connected with the input of the first frequency mixer (21); Be connected with the input of amplifier (24) behind the output series connection cavity fluid filter (23) of the first frequency mixer (21), the output of the output of amplifier (24), local oscillator two (26) is connected with the input of the second frequency mixer (25); Be connected with the input of amplifier (31) behind the output serial connection LC filter (27) of the second frequency mixer (25), amplifier (28), the two-stage numerical-control attenuator (29,30), the output of amplifier (31) is connected with an input of three-mixer (32); Local oscillator three (33) is connected in series formation in turn by crystal oscillator (52), phase discriminator (70), voltage controlled oscillator (71) and four-divider (72), and the output of four-divider (72) is connected with another input of three-mixer (32); Select the input of six switches (38) to be connected with one behind the output serial connection LC filter (34) of three-mixer (32), amplifier (35), numerical-control attenuator (36), the amplifier (37), 6 outputs of switch (38) select 6 inputs of six switches (41) to be connected with one after being connected in series respectively 6 preselection filters, output final signal (44) behind the output serial connection amplifier (42) of switch (41), the amplifier (43); The phase discriminator (70) of local oscillator three (33) is MAX2150, and its output frequency is 1560-1576MHz, and the output signal frequency of four-divider (72) is 394～390MHz, the 1kHz stepping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220279282 CN202696590U (en) | 2012-06-14 | 2012-06-14 | Stepping source wideband receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220279282 CN202696590U (en) | 2012-06-14 | 2012-06-14 | Stepping source wideband receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202696590U true CN202696590U (en) | 2013-01-23 |
Family
ID=47552140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220279282 Expired - Lifetime CN202696590U (en) | 2012-06-14 | 2012-06-14 | Stepping source wideband receiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202696590U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103957021A (en) * | 2014-05-15 | 2014-07-30 | 电子科技大学 | High-linearity low-noise short wave broadband receiver |
-
2012
- 2012-06-14 CN CN 201220279282 patent/CN202696590U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103957021A (en) * | 2014-05-15 | 2014-07-30 | 电子科技大学 | High-linearity low-noise short wave broadband receiver |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104135301A (en) | Radio frequency receiver and receiving method | |
| CN215986466U (en) | Front-end device of multi-channel large-dynamic-range radar receiver | |
| CN204794979U (en) | Wireless receiver circuit | |
| CN102324946A (en) | The high intermediate frequency front-end circuit of numerical control short-wave receiver | |
| CN101908896B (en) | Multi-band radio frequency receiver | |
| CN201550107U (en) | Wideband transceiver | |
| CN101834620B (en) | Broadband receiver with phase-locked loop local oscillation circuit | |
| CN110907962A (en) | Beidou double-frequency satellite signal radio frequency receiver | |
| CN104009765A (en) | High-performance radio frequency transmitter of LTE channel simulator | |
| CN101807931B (en) | Broadband receiver with spot-frequency local oscillation circuit | |
| CN201515363U (en) | Broad band receiver | |
| CN109257057B (en) | Ultra-wideband superheterodyne receiving system | |
| CN202696590U (en) | Stepping source wideband receiver | |
| CN201887754U (en) | Millimeter-wave dual-polarization integrated frequency synthesis receiver | |
| CN201467119U (en) | Novel navigation transmitter-receiver | |
| CN101820294A (en) | Broad band receiver with thin-step inlet-source local oscillation circuit | |
| CN202978895U (en) | Low phase noise frequency synthesizer | |
| CN202565256U (en) | 30-to-3000-megahertz ultra-short wave receiving machine | |
| CN202218220U (en) | Medium-frequency broadband receiver | |
| CN105429654A (en) | Frequency synthesizer for S-band wave observation radar | |
| CN202696589U (en) | Dot frequency source broadband receiver | |
| CN106849983A (en) | A kind of millimeter wave transceiving component | |
| CN104734792A (en) | Hybrid two-channel millimeter wave attenuation measuring method and system | |
| CN202696586U (en) | High-precision ultra-wideband receiver | |
| CN106888015A (en) | A kind of broadband frequency agility millimeter-wave frequency synthesizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |
|
| CX01 | Expiry of patent term |