CN204131508U - A kind of radio ultra short wave communication receiver - Google Patents
A kind of radio ultra short wave communication receiver Download PDFInfo
- Publication number
- CN204131508U CN204131508U CN201420555403.8U CN201420555403U CN204131508U CN 204131508 U CN204131508 U CN 204131508U CN 201420555403 U CN201420555403 U CN 201420555403U CN 204131508 U CN204131508 U CN 204131508U
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- Prior art keywords
- frequency
- filter
- mixer
- amplifier
- ultra short
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- 238000010897 surface acoustic wave method Methods 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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- Superheterodyne Receivers (AREA)
Abstract
The utility model provides a kind of radio ultra short wave communication receiver, comprises digital control filter, AGC unit, the first low noise amplifier, the first frequency mixer, Surface Acoustic Wave Filter, the second low noise amplifier, the second frequency mixer, the first intermediate-frequency filter, the first intermediate frequency amplifier, three-mixer, the second intermediate-frequency filter, the second intermediate frequency amplifier, low pass filter; Described digital control filter, AGC unit, the first low noise amplifier, the first frequency mixer, Surface Acoustic Wave Filter, the second low noise amplifier, the second frequency mixer, the first intermediate-frequency filter, the first intermediate frequency amplifier, three-mixer, the second intermediate-frequency filter, the second intermediate frequency amplifier, low pass filter connect successively.The utility model can stablize reception ultrashort wave signals, and have input ability strong, the error rate is low, distorted signals situation is less, and signal to noise ratio is high, spurious reduction is effective, antijamming capability is strong, and ultra short wave communication is effective, and structure is simple, the features such as cost is low.
Description
Technical field
The utility model belongs to telecommunication technology field, is specifically related to a kind of radio ultra short wave communication receiver.
Background technology
At wireless communication field, communication equipment becomes increasingly complex, and high-tech content gets more and more, function from strength to strength, therefore the receiver of Wireless Telecom Equipment is had higher requirement, requires that receiver image frequency and clutter suppression capability are strong, input dynamic range and machine sensitivity high.On one point in the star-like wireless communication system of multiple spot, requirement system employing communication system data transmission error rates is low, speech communication intelligibility is high, in order to ensure wireless communication system communicating reliability, the image frequency of receiver and clutter suppression capability are eager to excel, input dynamic range and machine sensitivity want high, but existing radio-frequency transmitter cannot meet these requirements.
As Chinese patent ZL201320570317 discloses the ultrashort frequency receiver of a kind of radio, the ultrashort frequency receiver of this radio effectively improves Wireless Telecom Equipment data transmission error rate and the requirement of speech communication intelligibility performance index, but its antijamming capability or poor, the situation that when using under some sights, phase noise is high is more general.
Utility model content
For solving the problems of the technologies described above, the utility model provides a kind of radio ultra short wave communication receiver, this radio ultra short wave communication receiver is amplified by multistage intermediate frequency, enhances antijamming capability greatly, ensure that signal to noise ratio is high, spurious reduction is effective to a great extent.
The utility model is achieved by the following technical programs.
A kind of radio ultra short wave communication receiver that the utility model provides, comprises digital control filter, AGC unit, the first low noise amplifier, the first frequency mixer, Surface Acoustic Wave Filter, the second low noise amplifier, the second frequency mixer, the first intermediate-frequency filter, the first intermediate frequency amplifier, three-mixer, the second intermediate-frequency filter, the second intermediate frequency amplifier, low pass filter; Described digital control filter, AGC unit, the first low noise amplifier, the first frequency mixer, Surface Acoustic Wave Filter, the second low noise amplifier, the second frequency mixer, the first intermediate-frequency filter, the first intermediate frequency amplifier, three-mixer, the second intermediate-frequency filter, the second intermediate frequency amplifier, low pass filter connect successively; Described first frequency mixer, the second frequency mixer, three-mixer are also connected to first vibration source, the second local vibration source, the 3rd local vibration source; The output of described low pass filter is as the output of ultrashort wave frequency hopping.
Described AGC unit is also connected with intermediate frequency wave detector.
The two ends of described second intermediate frequency amplifier have been arranged in parallel AGC unit.
Described digital control filter is provided with overload protecting circuit.
Described digital control filter is broadband electrically tunable filter, is provided with antenna.
The antenna that described digital control filter is arranged is liquid antenna.
The beneficial effects of the utility model are: can stablize reception ultrashort wave signals, and have input ability strong, the error rate is low, distorted signals situation is less, signal to noise ratio is high, spurious reduction is effective, antijamming capability is strong, ultra short wave communication is effective, and structure is simple, the features such as cost is low.
Accompanying drawing explanation
Fig. 1 is connection diagram of the present utility model;
In figure: 1-digital control filter, 2-AGC unit, 3-first low noise amplifier, 4-first frequency mixer, 5-Surface Acoustic Wave Filter, 6-second low noise amplifier, 7-second frequency mixer, 8-first intermediate-frequency filter, 9-first intermediate frequency amplifier, 10-three-mixer, 11-second intermediate-frequency filter, 12-second intermediate frequency amplifier, 13-low pass filter, 14-intermediate frequency wave detector, 15-first vibration source, 16-second local vibration source, 17-the 3rd local vibration source, 18-AGC unit.
Embodiment
Further describe the technical solution of the utility model below, but described in claimed scope is not limited to.
A kind of radio ultra short wave communication receiver as shown in Figure 1, comprises digital control filter 1, AGC unit 2, first low noise amplifier 3, first frequency mixer 4, Surface Acoustic Wave Filter 5, second low noise amplifier 6, second frequency mixer 7, first intermediate-frequency filter 8, first intermediate frequency amplifier 9, three-mixer 10, second intermediate-frequency filter 11, second intermediate frequency amplifier 12, low pass filter 13; Described digital control filter 1, AGC unit 2, first low noise amplifier 3, first frequency mixer 4, Surface Acoustic Wave Filter 5, second low noise amplifier 6, second frequency mixer 7, first intermediate-frequency filter 8, first intermediate frequency amplifier 9, three-mixer 10, second intermediate-frequency filter 11, second intermediate frequency amplifier 12, low pass filter 13 connect successively; Described first frequency mixer 4, second frequency mixer 7, three-mixer 10 are also connected to first vibration source 15, second local vibration source 16, the 3rd local vibration source 17; The output of described low pass filter 13 is as the output of ultrashort wave frequency hopping.Multistage enlarge leadingly, then by multistage intermediate frequency amplification filtering, ensure that the filtration of clutter enough thorough thus, avoids noise jamming greatly.
Described AGC unit 2 is also connected with intermediate frequency wave detector 14.
The two ends of described second intermediate frequency amplifier 12 have been arranged in parallel AGC unit 18.
Described digital control filter 1 is provided with overload protecting circuit.
Described digital control filter 1 is broadband electrically tunable filter, is provided with antenna.
Ensure the ability of anti-clutter interference thus further.
The antenna that described digital control filter 1 is arranged is liquid antenna.Arrange thus, after device miniaturization assembling can be ensured, can greatly be easy to carry.
Claims (6)
1. a radio ultra short wave communication receiver, comprises digital control filter (1), AGC unit (2), first low noise amplifier (3), first frequency mixer (4), Surface Acoustic Wave Filter (5), second low noise amplifier (6), second frequency mixer (7), first intermediate-frequency filter (8), first intermediate frequency amplifier (9), three-mixer (10), second intermediate-frequency filter (11), second intermediate frequency amplifier (12), low pass filter (13), is characterized in that: described digital control filter (1), AGC unit (2), first low noise amplifier (3), first frequency mixer (4), Surface Acoustic Wave Filter (5), second low noise amplifier (6), second frequency mixer (7), first intermediate-frequency filter (8), first intermediate frequency amplifier (9), three-mixer (10), second intermediate-frequency filter (11), second intermediate frequency amplifier (12), low pass filter (13) connects successively, described first frequency mixer (4), the second frequency mixer (7), three-mixer (10) are also connected to first vibration source (15), the second local vibration source (16), the 3rd local vibration source (17), the output of described low pass filter (13) is as the output of ultrashort wave frequency hopping.
2. radio ultra short wave communication receiver as claimed in claim 1, is characterized in that: described AGC unit (2) is also connected with intermediate frequency wave detector (14).
3. radio ultra short wave communication receiver as claimed in claim 1, is characterized in that: the two ends of described second intermediate frequency amplifier (12) have been arranged in parallel AGC unit (18).
4. radio ultra short wave communication receiver as claimed in claim 1, is characterized in that: (1) is provided with overload protecting circuit to described digital control filter.
5. radio ultra short wave communication receiver as claimed in claim 1, is characterized in that: described digital control filter (1) is broadband electrically tunable filter, is provided with antenna.
6. radio ultra short wave communication receiver as claimed in claim 5, is characterized in that: the upper antenna arranged of described digital control filter (1) is liquid antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420555403.8U CN204131508U (en) | 2014-09-25 | 2014-09-25 | A kind of radio ultra short wave communication receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420555403.8U CN204131508U (en) | 2014-09-25 | 2014-09-25 | A kind of radio ultra short wave communication receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204131508U true CN204131508U (en) | 2015-01-28 |
Family
ID=52387823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420555403.8U Expired - Lifetime CN204131508U (en) | 2014-09-25 | 2014-09-25 | A kind of radio ultra short wave communication receiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204131508U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105680961A (en) * | 2016-01-14 | 2016-06-15 | 中兵通信科技有限公司 | Received signal processing circuit of ultra-short wave radio set |
| CN109067413A (en) * | 2018-10-31 | 2018-12-21 | 陕西烽火实业有限公司 | A kind of ultrashort wave channel receiver of high dynamic range |
-
2014
- 2014-09-25 CN CN201420555403.8U patent/CN204131508U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105680961A (en) * | 2016-01-14 | 2016-06-15 | 中兵通信科技有限公司 | Received signal processing circuit of ultra-short wave radio set |
| CN105680961B (en) * | 2016-01-14 | 2018-01-23 | 中兵通信科技股份有限公司 | A kind of ultrashort wave radio set reception signal process circuit |
| CN109067413A (en) * | 2018-10-31 | 2018-12-21 | 陕西烽火实业有限公司 | A kind of ultrashort wave channel receiver of high dynamic range |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |