CN2232174Y - High frequency front end device for superhigh frequency band receiver - Google Patents
High frequency front end device for superhigh frequency band receiver Download PDFInfo
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- CN2232174Y CN2232174Y CN 95200369 CN95200369U CN2232174Y CN 2232174 Y CN2232174 Y CN 2232174Y CN 95200369 CN95200369 CN 95200369 CN 95200369 U CN95200369 U CN 95200369U CN 2232174 Y CN2232174 Y CN 2232174Y
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- inductance
- preselector
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- high frequency
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Abstract
The utility model discloses a high frequency front end device for superhigh frequency band receiver, which is composed of a switch preselector, a broad band low noise amplifier, an electric controlled attenuator, a frequency mixer, an intermediate frequency amplifier and a wave filter, etc. The high frequency front end device for superhigh frequency band receiver adopts the principle of multi-band switch preselector to improve the bandwidth of working frequency, and selects broad band large dynamic magnifiers, etc., in order to adapt to various receivers for being used as high frequency front end device. The high frequency front end device for superhigh frequency band receiver also has the characteristics of small size, light weight, reliable performance, easy usage, and is particularly applicable to receivers for analysis, direction finding and detection in communication countermeasure systems, and the high frequency front end device for superhigh frequency band receiver is an ideal high frequency front end device with the values of popularization and application.
Description
The utility model relates to the shf band receiver high frequency front-end device in the radio communication antagonism receiver system, is specially adapted to do the high frequency front-end device of analysis in the communication countermeasure system, direction finding, scanning receiver.
During the radio communication engineering is used at present, the high frequency front-end device of general receiver exists working band narrow, dynamic range is little, can not under large-signal, work, but also exist the receiver front end device volume big, Heavy Weight, shortcoming such as integrated degree is low, can not satisfy and make shf band receiver high frequency front-end device in the modern communication countermeasure system, especially make analysis, direction finding, scanning receiver high frequency front-end device in the communication antagonism use and be restricted.
The purpose of this utility model is to avoid the weak point in the above-mentioned background technology and provides that a kind of working band is wide, dynamic range is big, can also under large-signal, accurately receive the shf band receiver high frequency front-end device of useful signal, and the utility model also has little, the integrated degree height of volume, in light weight, dependable performance, characteristics such as easy to use.
The purpose of this utility model is achieved in that it is by 1 to 10 way switch preselector 1, wideband low noise amplifier 2, voltage-controlled attenuator 3, frequency mixer 4,9, this vibration magnifier 5,10, preselector 6, after select device 8, amplifier 7,12, filter 11, power supply 13 is formed, wherein received signal goes into to hold A and each way switch preselector 1 to go into end and connect, each way switch preselector 1 goes out end and goes into end with wideband low noise amplifier 2 and connect, wideband low noise amplifier 2 goes out end and is connected in series voltage-controlled attenuator 3 successively, frequency mixer 4, preselector 6, be placed on device 7, after select device 8, frequency mixer 9, filter 11, amplifier 12 backs are connected with output signal end D, first local oscillation signal goes into to hold B to be connected in series this vibration magnifier 5 back to go into to hold with frequency mixer 4 and be connected, second local oscillation signal goes into to hold C to be connected in series this vibration magnifier 10 back to go into to hold with frequency mixer 9 and be connected, power supply 13 output+V2,-V3 voltage is gone into end with each way switch preselector 1 power supply and is connected, and power supply 13 output+V1 voltages are connected with other voltage ends at different levels.
The purpose of this utility model can also reach by following measure:
1 to 10 way switch preselector, 1 every way switch preselector 1 of the present utility model all has microwave diode D1 to D4, capacitor C 1 is to C6, inductance L 1 is to L9, resistance R 1, R2 forms, wherein received signal goes into to hold A and microwave diode D1 negative pole, inductance L 1 one ends also connect, anodal and the microwave diode D2 negative pole of microwave diode D1, inductance L 8, L2 one end also connects, inductance L 2 other ends and capacitor C 1, C2, inductance L 3 one ends also connect, capacitor C 2 other ends and capacitor C 3, inductance L 4 one ends also connect, inductance L 4 other ends and capacitor C 4, C5 one end also connects, capacitor C 5 other ends and inductance L 5, L6, capacitor C 6 one ends also connect, inductance L 6 other ends and inductance L 9 one ends, microwave diode D3 positive pole, the D4 negative pole also connects, microwave diode D3 negative pole and inductance L 7 one ends, wideband low noise amplifier 2 is gone into end and is connect, inductance L 8, the L9 other end is series resistor R1 respectively, behind the R2 with power supply 13 output+V2,-V3 voltage also connects, inductance L 1, L3, L5, L7, capacitor C 1, C3, C4, the C6 other end, microwave diode D2, the D4 positive pole is held with ground and is connect.
Mounting structure of the present utility model circuit at different levels are installed on the positive and negative layer printed panel, become the dividing plate Isolated Shield with aluminium or copper coin material between the circuit at different levels, and whole printed circuit board (PCB) is installed in the shielding box with securing member together with dividing plate, the assembly cost utility model.
The utility model is compared background technology following advantage:
1. the utility model is owing to adopt variable connector preselector 1 circuit, can make receiver high frequency front-end working band do very widely, select the big dynamically amplifier in broadband for use, its dynamic range is very big, under large-signal, can accurately receive useful signal, satisfy the requirement of various receiver high frequency front-end devices such as analysis in the communication countermeasure system, direction finding, search.
2. the most of circuit of the utility model adopts modularization microwave integrated circuit, so volume is little, and is in light weight, makes receiver high frequency front-end device be more suitable for practical requirement, and can be convenient to be connected with microstrip circuit.
3. adopt the shielding isolation structure between the utility model circuit at different levels, therefore stable and reliable for performance, easy to use, make simple and easy, easy to utilize.
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 is the utility model electricity functional-block diagram.
Fig. 2 is the electrical schematic diagram of the utility model switch preselector 1.
With reference to Fig. 1, Fig. 2, the utility model by 1 to 10 way switch preselector 1, wideband low noise amplifier 2, voltage-controlled attenuator 3, frequency mixer 4,9, this vibration magnifier 5,10, preselector 6, after select device 8, amplifier 7,12, filter 11, power supply 13 to form.The signal that receives from antenna is by going into to hold A and each way switch preselector 1 and go into end and connecing, each way switch preselector 1 goes out to hold output signal and wideband low noise amplifier 2 to go into end and connect, 1 to 10 way switch preselector, 1 every way switch preselector 1 all has microwave diode D1 to D4, capacitor C 1 is to C6, inductance L 1 is to L9, resistance R 1, R2 forms, wherein received signal goes into to hold A and microwave diode D1 negative pole, inductance L 1 one ends also connect, anodal and the microwave diode D2 negative pole of microwave diode D1, inductance L 8, L2 one end also connects, inductance L 2 other ends and capacitor C 1, C2, inductance L 3 one ends also connect, capacitor C 2 other ends and capacitor C 3, inductance L 4 one ends also connect, inductance L 4 other ends and capacitor C 4, C5 one end also connects, capacitor C 5 other ends and inductance L 5, L6, capacitor C 6 one ends also connect, inductance L 6 other ends and inductance L 9 one ends, microwave diode D3 positive pole, the D4 negative pole also connects, microwave diode D3 negative pole and inductance L 7 one ends, wideband low noise amplifier 2 is gone into end and is connect, inductance L 8, the L9 other end is series resistor R1 respectively, behind the R2 with power supply 13 output+V2,-V3 voltage also connects, inductance L 1, L3, L5, L7, capacitor C 1, C3, C4, the C6 other end, microwave diode D2, the D4 positive pole is held with ground and is connect.Its operation principle: when power end input negative voltage-V3 voltage, microwave diode D1, D3 end, be equivalent to switch and close, microwave diode D2, D4 conducting, receiving inputted signal can not be through this way switch preselector 1 passage input subordinate wideband low noise amplifier 2.Inductance L 2 to L6 in the switch preselector 1, capacitor C 1 to C6 constitute five joint filters, and input signal is carried out gating.When power end input positive voltage+V2 voltage, microwave diode D1, D3 conducting, suitable switch opens, microwave diode D2, D4 end, input signal is selected the desired signal frequency through microwave diode D3 input subordinate through five joint filter gatings then through microwave diode D1 input, and microwave diode D1 to D4 plays on-off action, as long as the selection input+V2 ,-V3 voltage, just can operate this way switch preselector 1 and whether work.Embodiment switch preselector 1 adopts 7 road different frequency filters to make, the received signal of importing is divided into 7 wave bands signal is carried out frequency-selecting, the power supply 13 on every road adopts independent current source to supply with generating positive and negative voltage+V2 respectively,-V3 voltage, embodiment power supply 13+V2 voltage is positive 5 volts,-V3 voltage is negative-5 volts, provide by external receiver host power supply, through the work on the every road of commercially available driver control whether, embodiment microwave diode D1 to D4 adopts commercially available 2K4 type microwave diode element manufacturing, resistance R 1, R2, capacitor C 1 to C6 adopts commercially available general resistance, electric capacity is made, and inductance L 1 to L7 adopts the enamelled wire self-control of 0.44 millimeter of diameter phi to form.
Wideband low noise amplifier of the present utility model 2 go out end be connected in series successively voltage-controlled attenuator 3, frequency mixer 4, preselector 6, amplifier 7, after select device 8, frequency mixer 9, filter 11, amplifier 12 backs to be connected with output signal end D, first local oscillation signal goes into to hold B to be connected in series this vibration magnifier 5 back to go into to hold with frequency mixer 4 and be connected, second local oscillation signal goes into to hold C to be connected in series this vibration magnifier 10 back to go into to hold with frequency mixer 9 and be connected, and power supply 13 output+V1 voltages are connected with voltage ends at different levels.The signal of 2 pairs of inputs of its effect wideband low noise amplifier carries out high frequency linearity and amplifies, and embodiment it adopt commercially available HE372 type microwave amplifier to make.Voltage-controlled attenuator 3 plays the gain controlling effect, and is very little to the small-signal loss to large-signal decay 20db, and embodiment adopts commercially available 2K4 microwave diode and pellet resistance self-control to form.Frequency mixer 4,9 its effects are carried out mixing to the local oscillation signal of the received signal of input and the input of B, C end respectively, export an intermediate-freuqncy signal and two intermediate-freuqncy signals after the mixing respectively, the local oscillation signal of Embodiment B, the input of C end is provided by the frequency synthesizer of external receiver main frame respectively, and frequency mixer 4,9 adopts commercially available ROK186 type integrated package element manufacturing.5,10 its effects of this vibration magnifier are amplified the local oscillation signal of external receiver input respectively, and this vibration magnifier of embodiment 5,10 adopts commercially available XN381 type integrated package element manufacturing.Preselector 6 and after select device 8 its effects mainly an intermediate-freuqncy signal of frequency mixer 4 outputs to be carried out filtering, the mirror image that improves receiver suppresses, embodiment preselector 6, after select device 8 all to adopt homemade cavity body filter to make.Amplifier 7 mainly amplifies an intermediate-freuqncy signal, and embodiment amplifier 7 adopts commercially available HE383 type integrated package amplifier to make.Amplifier 12 its effects are amplified two intermediate-freuqncy signals of frequency mixer 9 outputs, and embodiment adopts commercially available HE351 type integrated package amplifier to make.Filter 11 its effects are carried out filtering to two intermediate-freuqncy signals of frequency mixer 9 outputs, improve the signal to noise ratio of two intermediate-freuqncy signals, and embodiment filter 11 adopts homemade LC filter to make.Embodiment power supply 13 output+V1 voltages are provided by external receiver host power supply, export+15 volts of voltages.
The concise and to the point operation principle of the utility model is as follows: signalman's working frequency that antenna receives is through going into to hold A input switch preselector 1,1 pair of signal frequency of switch preselector is carried out frequency-selecting, import 2 pairs of signals of wideband low noise amplifier then and carry out the high frequency linearity amplification, if when the large-signal transmission is arranged, after voltage-controlled attenuator 3 can be controlled decay automatically, input to frequency mixer 4.First local oscillation signal, carries out exporting an intermediate-freuqncy signal after the mixing with signal frequency after this vibration magnifier 5 amplifies back input mixer 4 to its local oscillation signal through going into to hold B input.One intermediate-freuqncy signal through preselector 6, amplifier 7, after select device 8 to carry out frequency-selecting to amplify back input mixer 9, the second local oscillation signals and export two intermediate-freuqncy signals after this vibration magnifier 10 amplifies its local oscillation signal after a back input mixer 9 and an intermediate-freuqncy signal are carried out mixing through going into to hold the C input.Signalman's working frequency that the embodiment antenna receives is 20 to 500MHz, the first local oscillation signal frequency of input is 682 to 1160MHz, exporting an intermediate-freuqncy signal frequency is 661MHz, and the second local oscillation signal frequency of input is 638.6 to 640.6MHz, and two intermediate-freuqncy signal frequencies of output are 21.4MHz.Second intermediate-freuqncy signal again after the input filter 11 filtering frequency-selectings again input amplifier 12 signal amplified input to subordinate's receiver intermediate-frequency channel by output D.
The utility model mounting structure is installed in the circuit devcie among Fig. 1, Fig. 2 on the positive and negative layer printed panel, the size length of printed panel be 287 millimeters, wide be 102 millimeters, wherein preselector 6, after select the cavity body filter of device 8 to be installed in the reverse side of printed panel, all the other circuit devcies at different levels are installed in the front of printed panel, and become the dividing plate Isolated Shield with aluminium or copper coin material between the circuit at different levels, prevent phase mutual interference at different levels, improve performance.Embodiment adopts the aluminium sheet material to make dividing plate, then printed panel being installed in a long * wide * height together with shielded partitions with securing member is in 298 * 110 * 40 millimeters the shielding box, input A, output D are installed on the shielding box epipleural, reach the cable socket that local oscillation signal goes into to hold B, C, embodiment adopts commercially available SMA type cable socket to make, and connects with the corresponding signal end of receiver by cable plug, cable during use.The voltage input socket of power supply 13 is installed on the lower side panel of shielding box simultaneously, and embodiment adopts commercially available CD-25T type socket to install, and is connected with the power output end of receiver by plug and lead during use.The embodiment shielding box adopts commercially available 2 millimeters thick aluminium sheet material machinings to form, and shielded partitions adopts 1 millimeters thick aluminium sheet material machining to be made.The utility model device can be used for various receivers such as the analysis, direction finding, search in the communication countermeasure system and makes the high frequency front-end device.
Claims (3)
1. one kind by wideband low noise amplifier (2), voltage-controlled attenuator (3), frequency mixer (4), (9), this vibration magnifier (5), (10), preselector (6), after select device (8), amplifier (7), (12), filter (11), the shf band receiver high frequency front-end device that power supply (13) is formed, it is characterized in that 1 to 10 way switch preselector (1) is formed in addition, wherein received signal goes into to hold A and each way switch preselector (1) to go into end and connect, each way switch preselector (1) goes out end and goes into end with wideband low noise amplifier (2) and connect, wideband low noise amplifier (2) goes out end and is connected in series automatically controlled damping characteristic device (3) successively, frequency mixer (4), preselector (6), amplifier (7), after select device (8), frequency mixer (9), filter (11), amplifier (12) back is connected with output signal end D, first local oscillation signal goes into to hold B to be connected in series this vibration magnifier (5) back to go into to hold with frequency mixer (4) and be connected, second local oscillation signal goes into to hold C to be connected in series this vibration magnifier (10) back to go into to hold with frequency mixer (9) and be connected, power supply (13) output+V2,-V3 voltage is gone into end with each way switch preselector (1) power supply and is connected, and power supply (13) output+V1 voltage is connected with other voltage ends at different levels.
2. shf band receiver high frequency front-end device according to claim 1, it is characterized in that 1 to the 10 every way switch preselector of way switch preselector (1) (1) all has microwave diode D1 to D4, capacitor C 1 is to C6, inductance L 1 is to L9, resistance R 1, R2 forms, wherein received signal goes into to hold A and microwave diode D1 negative pole, inductance L 1 one ends also connect, anodal and the microwave diode D2 negative pole of microwave diode D1, inductance L 8, L2 one end also connects, inductance L 2 other ends and capacitor C 1, C2, inductance L 3 one ends also connect, capacitor C 2 other ends and capacitor C 3, inductance L 4 one ends also connect, inductance L 4 other ends and capacitor C 4, C5 one end also connects, capacitor C 5 other ends and inductance L 5, L6, capacitor C 6 one ends also connect, inductance L 6 other ends and inductance L 9 one ends, microwave diode D3 positive pole, the D4 negative pole also connects, microwave diode D3 negative pole and inductance L 7 one ends, wideband low noise amplifier (2) is gone into end and is connect, inductance L 8, the L9 other end is series resistor R1 respectively, behind the R2 with power supply (13) output+V2,-V3 voltage also connects, inductance L 1, L3, L5, L7, capacitor C 1, C3, C4, the C6 other end, microwave diode D2, the D4 positive pole is held with ground and is connect.
3. shf band receiver high frequency front-end device according to claim 1 and 2, it is characterized in that mounting structure circuit at different levels are installed on the positive and negative layer printed panel, become the dividing plate Isolated Shield with aluminium or copper coin material between the circuit at different levels, whole printed panel is installed in the shielding box with securing member together with dividing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95200369 CN2232174Y (en) | 1995-01-02 | 1995-01-02 | High frequency front end device for superhigh frequency band receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95200369 CN2232174Y (en) | 1995-01-02 | 1995-01-02 | High frequency front end device for superhigh frequency band receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2232174Y true CN2232174Y (en) | 1996-07-31 |
Family
ID=33854139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95200369 Expired - Fee Related CN2232174Y (en) | 1995-01-02 | 1995-01-02 | High frequency front end device for superhigh frequency band receiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2232174Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008144990A1 (en) * | 2007-05-25 | 2008-12-04 | Olinkstar Corporation, Ltd. | A general configurable rf processing method and system for navigation satellite signal |
| CN101807931A (en) * | 2010-03-11 | 2010-08-18 | 成都九洲迪飞科技有限责任公司 | Broadband receiver with spot-frequency local oscillation circuit |
| CN104253628A (en) * | 2014-09-10 | 2014-12-31 | 宝鸡烽火诺信科技有限公司 | Short-wave pre-and-post-selector |
-
1995
- 1995-01-02 CN CN 95200369 patent/CN2232174Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008144990A1 (en) * | 2007-05-25 | 2008-12-04 | Olinkstar Corporation, Ltd. | A general configurable rf processing method and system for navigation satellite signal |
| CN101807931A (en) * | 2010-03-11 | 2010-08-18 | 成都九洲迪飞科技有限责任公司 | Broadband receiver with spot-frequency local oscillation circuit |
| CN101807931B (en) * | 2010-03-11 | 2012-10-03 | 成都九洲迪飞科技有限责任公司 | Broadband receiver with spot-frequency local oscillation circuit |
| CN104253628A (en) * | 2014-09-10 | 2014-12-31 | 宝鸡烽火诺信科技有限公司 | Short-wave pre-and-post-selector |
| CN104253628B (en) * | 2014-09-10 | 2016-05-25 | 宝鸡烽火诺信科技有限公司 | Device is selected in a kind of shortwave prognosis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |