CN201577089U - Wide frequency band radio frequency front end module - Google Patents
Wide frequency band radio frequency front end module Download PDFInfo
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- CN201577089U CN201577089U CN2010201012520U CN201020101252U CN201577089U CN 201577089 U CN201577089 U CN 201577089U CN 2010201012520 U CN2010201012520 U CN 2010201012520U CN 201020101252 U CN201020101252 U CN 201020101252U CN 201577089 U CN201577089 U CN 201577089U
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- frequency
- intermediate frequency
- filter
- acoustic wave
- surface acoustic
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Abstract
The utility model discloses a wide frequency band radio frequency front end module, which comprises a power supply module, also comprises a transmitting-receiving antenna, a band-pass filter I, a low noise amplifier, an attenuator, an electric adjustable filter, an intermediate frequency local oscillation, a frequency mixer I for frequency mixed processing a signal outputted by the electric adjustable filter and an intermediate frequency local oscillation signal outputted by the intermediate frequency local oscillation, an acoustic surface filter, a second intermediate frequency local oscillation, a frequency mixer II for frequency mixed processing a signal outputted by the acoustic surface filter and a second intermediate frequency local oscillation signal outputted by the second intermediate frequency local oscillation, a band-pass filter II, a VGA variable gain amplifier and a control module which are connected in turn. The utility model has advantages of small body type, low power consumption, reasonable design of each component, perfect function, and wide covered frequency band, can effectively overcome defects that the existing radio frequency front end has disadvantages of strong hardware dependency, finite supporting waveform, bad signal adaptability, narrow frequency band and bad communication performance.
Description
Technical field
The utility model belongs to wireless communication technology field, especially relates to a kind of wideband section RF front-end module.
Background technology
RF front-end module is the core part of radio station channel, and many technical indicators in radio station are all closely related with it.In the actual application, RF front-end module is mainly finished functions such as amplification to signal of communication, filtering, frequency translation.At present, the employed radio-frequency front-end of radio station is stronger to the dependence of hardware, thereby has many defectives and deficiencies such as the waveform of being supported is limited, signal adaptation ability, frequency range is narrow partially, interoperability is relatively poor in the application process.Will all there be requirements at the higher level in the digitization unit of 21 century to communication speed, capacity, interoperability etc., and the standardization of equipment, miniaturization, extended frequency band, minimizing radio station kind and quantity etc. are present military communication problem demanding prompt solutions.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, a kind of wideband section RF front-end module is provided, it is small, low in energy consumption, each component design rationally and perfect in shape and function, the frequency range that covered wide, can effectively overcome defective and deficiencies such as the waveform strong, that supported of the dependence to hardware that existing radio-frequency front-end exists is limited, signal adaptation ability, frequency range is narrow partially, interoperability is relatively poor.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of wideband section RF front-end module, be included as the power module of each power unit power supply, it is characterized in that: also comprise dual-mode antenna, the band pass filter one that joins with dual-mode antenna, the low noise amplifier that joins with band pass filter one, the attenuator that joins with low noise amplifier, the electrically tunable filter that joins with attenuator, one intermediate frequency local oscillator, an electrically tunable filter institute's output signal and an intermediate frequency local oscillator are exported the frequency mixer one that an intermediate frequency local oscillator signal carries out Frequency mixing processing, the Surface Acoustic Wave Filter of joining with frequency mixer one, two intermediate frequency local oscillator, described Surface Acoustic Wave Filter institute's output signal and two intermediate frequency local oscillator are exported the frequency mixer two that two intermediate frequency local oscillator signals carry out Frequency mixing processing, the band pass filter two that joins with frequency mixer two, the VGA variable gain amplifier that joins with band pass filter two and respectively to attenuator, the control module that electrically tunable filter and VGA variable gain amplifier are controlled, described attenuator, electrically tunable filter and VGA variable gain amplifier all join with described control module; A described electrically tunable filter and an intermediate frequency local oscillator are all joined with frequency mixer one, and described Surface Acoustic Wave Filter and two intermediate frequency local oscillator are all joined with frequency mixer two.
Described control module is a FPGA field programmable gate array processing module.
Described Surface Acoustic Wave Filter comprises the Surface Acoustic Wave Filter one and the Surface Acoustic Wave Filter of joining with frequency mixer one
Be connected by the AMP amplifier between described attenuator and electrically tunable filter.
Two of described Surface Acoustic Wave Filter one and Surface Acoustic Wave Filter are connected by the AMP amplifier.
The utility model compared with prior art has the following advantages:
1, each several part reasonable in design and volume is little, in light weight, power consumption is little, result of use is good, employed attenuator makes whole module of the present utility model all be operated in linear condition; The electrically tunable filter tuning speed is supported middle and high fast frequency hopping communications; Produce a plurality of electric power loops by high efficiency switch power supply chip and linear power supply chip in the power unit, provide system needed power supply; Anti-interference Design is effective, adopts measures such as special circuit design, filtering and shielding, has improved the reliability of communication; Simultaneously, by FPGA field programmable gate array processing module all hardware modules of the utility model are carried out controlledization design with the critical software module that is embedded in the hardware module, under different mode of operations, choose different software work modules, and the purpose of Comprehensive Control is carried out in corresponding realization to attenuator, electrically tunable filter, VGA variable gain amplifier etc.
2, the band limits that is covered is wide, can cover 30MHz～512MHz frequency range, satisfies the requirement of military's extended frequency band.
But polytype signals such as 3 transporting speechs, data and image, and can interconnect with existing radio station.
4, the Wideband Intermediate Frequency digital versatile hardware platform that adopts software radio SDR design philosophy to make up, make it can support to decide multiple mode of operations such as frequency, frequency hopping, spread spectrum, and utilize FPGA field programmable gate array processing module can realize the switching of function services such as multiband, multi-functional, multi-mode and multitask, realized Programmable Design.
5, linear channel can be supported multiple modulation system, thereby the utility model not only can support as non-linear modulation modes such as FM, also can support various linear modulation modes such as AM simultaneously.In addition, its frequency hopping communications can be supported middle and high fast frequency hopping communications.
6, practical value height, whole module is a basic principle with modularized design, flexibility and extensibility, compared with the conventional radio frequency front-end module, use of the present utility model makes the radio station be better than traditional station at aspects such as lead time, cost, deployment time, working service, upgradings comprehensively.And can compatible legacy system, support multiple new advanced waveform, greatly strengthen the mutual communication ability between the army, have the prospect of using widely.
In sum, the utility model adopt modularized design, small, low in energy consumption, each component design rationally and perfect in shape and function, the frequency range that covered wide, can support simultaneously multiple mode of operations such as fixed frequency, frequency hopping, spread spectrum, can expand and programmability very strong, can effectively overcome many defectives and deficiencies such as the existing dependence to hardware of existing radio-frequency front-end waveform strong, that supported is limited, signal adaptation ability, frequency range is narrow partially, interoperability is relatively poor.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is a schematic block circuit diagram of the present utility model.
Description of reference numerals:
1-band pass filter one; The 2-low noise amplifier; The 3-attenuator;
The 4-electrically tunable filter; 5-one intermediate frequency local oscillator; 6-frequency mixer one;
7-Surface Acoustic Wave Filter one; 8-Surface Acoustic Wave Filter two; 9-two intermediate frequency local oscillator;
10-frequency mixer two; 11-band pass filter two; The 12-VGA variable gain is put
Big device;
14-FPGA field-programmable gate array 15-dual-mode antenna; The 16-AMP amplifier.
The row processing module;
Embodiment
As shown in Figure 1, the utility model is included as the power module of each power unit power supply, also comprise dual-mode antenna 15 simultaneously, the band pass filter 1 that joins with dual-mode antenna 15, the low noise amplifier 2 that joins with band pass filter 1, the attenuator 3 that joins with low noise amplifier 2, the electrically tunable filter 4 that joins with attenuator 3, one intermediate frequency local oscillator 5, to 4 output signals of electrically tunable filter and intermediate frequency local oscillator 5 frequency mixer 1 that an intermediate frequency local oscillator signal carries out Frequency mixing processing of exporting, the Surface Acoustic Wave Filter of joining with frequency mixer 1, two intermediate frequency local oscillator 9, to described Surface Acoustic Wave Filter institute's output signal and two intermediate frequency local oscillator 9 frequency mixers 2 10 that two intermediate frequency local oscillator signals carry out Frequency mixing processing of exporting, the band pass filter 2 11 that joins with frequency mixer 2 10, the VGA variable gain amplifier 12 that joins with band pass filter 2 11 and respectively to attenuator 3, the control module that electrically tunable filter 4 and VGA variable gain amplifier 12 are controlled, described attenuator 3, electrically tunable filter 4 and VGA variable gain amplifier 12 all join with described control module.A described electrically tunable filter 4 and an intermediate frequency local oscillator 5 are all joined with frequency mixer 1, and described Surface Acoustic Wave Filter and two intermediate frequency local oscillator 9 are all joined with frequency mixer 2 10.Described power module joins with composition each power unit of the present utility model respectively.
In the present embodiment, described control module is a FPGA field programmable gate array processing module 14.Described Surface Acoustic Wave Filter comprises the Surface Acoustic Wave Filter 1 and the Surface Acoustic Wave Filter 28 of joining with frequency mixer 1.4 of described attenuator 3 and electrically tunable filters are connected by AMP amplifier 16, and 28 of described Surface Acoustic Wave Filter 1 and Surface Acoustic Wave Filter are connected by AMP amplifier 16.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection range of technical solutions of the utility model according to the utility model technical spirit.
Claims (5)
1. wideband section RF front-end module, be included as the power module of each power unit power supply, it is characterized in that: also comprise dual-mode antenna (15), the band pass filter one (1) that joins with dual-mode antenna (15), the low noise amplifier (2) that joins with band pass filter one (1), the attenuator (3) that joins with low noise amplifier (2), the electrically tunable filter (4) that joins with attenuator (3), one intermediate frequency local oscillator (5), electrically tunable filter (4) institute's output signal and an intermediate frequency local oscillator (5) the intermediate frequency local oscillator signal of exporting are carried out the frequency mixer one (6) of Frequency mixing processing, the Surface Acoustic Wave Filter of joining with frequency mixer one (6), two intermediate frequency local oscillator (9), described Surface Acoustic Wave Filter institute's output signal and two intermediate frequency local oscillator (9), the two intermediate frequency local oscillator signals of exporting are carried out the frequency mixer two (10) of Frequency mixing processing, the band pass filter two (11) that joins with frequency mixer two (10), the VGA variable-gain amplifier (12) that joins with band pass filter two (11) and respectively to attenuator (3), the control module that electrically tunable filter (4) and VGA variable gain amplifier (12) are controlled, described attenuator (3), electrically tunable filter (4) and VGA variable gain amplifier (12) all join with described control module; A described electrically tunable filter (4) and an intermediate frequency local oscillator (5) are all joined with frequency mixer one (6), and described Surface Acoustic Wave Filter and two intermediate frequency local oscillator (9) are all joined with frequency mixer two (10).
2. according to the described wideband section of claim 1 RF front-end module, it is characterized in that: described control module is a FPGA field programmable gate array processing module (14).
3. according to claim 1 or 2 described wideband section RF front-end modules, it is characterized in that: described Surface Acoustic Wave Filter comprises the Surface Acoustic Wave Filter one (7) and the Surface Acoustic Wave Filter two (8) of joining with frequency mixer one (6).
4. according to claim 1 or 2 described wideband section RF front-end modules, it is characterized in that: be connected by AMP amplifier (16) between described attenuator (3) and electrically tunable filter (4).
5. according to the described wideband section of claim 3 RF front-end module, it is characterized in that: be connected by AMP amplifier (16) between described Surface Acoustic Wave Filter one (7) and Surface Acoustic Wave Filter two (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201012520U CN201577089U (en) | 2010-01-22 | 2010-01-22 | Wide frequency band radio frequency front end module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201012520U CN201577089U (en) | 2010-01-22 | 2010-01-22 | Wide frequency band radio frequency front end module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201577089U true CN201577089U (en) | 2010-09-08 |
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ID=42696960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201012520U Expired - Fee Related CN201577089U (en) | 2010-01-22 | 2010-01-22 | Wide frequency band radio frequency front end module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201577089U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106788573A (en) * | 2017-04-01 | 2017-05-31 | 中国电子科技集团公司第五十四研究所 | A kind of C-band high-power radio-frequency receiving-transmitting equipment |
| CN106841824A (en) * | 2016-12-15 | 2017-06-13 | 北京无线电计量测试研究所 | A kind of signal source comprehensive parameters field measurement apparatus |
-
2010
- 2010-01-22 CN CN2010201012520U patent/CN201577089U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106841824A (en) * | 2016-12-15 | 2017-06-13 | 北京无线电计量测试研究所 | A kind of signal source comprehensive parameters field measurement apparatus |
| CN106788573A (en) * | 2017-04-01 | 2017-05-31 | 中国电子科技集团公司第五十四研究所 | A kind of C-band high-power radio-frequency receiving-transmitting equipment |
| CN106788573B (en) * | 2017-04-01 | 2018-12-25 | 中国电子科技集团公司第五十四研究所 | A kind of C-band high-power radio-frequency receiving-transmitting equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100908 Termination date: 20140122 |