CN202395762U - Ultrashort wave receiving channel module - Google Patents
Ultrashort wave receiving channel module Download PDFInfo
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- CN202395762U CN202395762U CN2011205258844U CN201120525884U CN202395762U CN 202395762 U CN202395762 U CN 202395762U CN 2011205258844 U CN2011205258844 U CN 2011205258844U CN 201120525884 U CN201120525884 U CN 201120525884U CN 202395762 U CN202395762 U CN 202395762U
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- frequency amplifier
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- filter
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- mixer
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Abstract
An ultrashort wave receiving channel module relates to the technical field of communication and electronic countermeasure, and is characterized in that: two radio-frequency amplifiers are connected to an input end of a mixer, an output end of the mixer is connected to an intermediate-frequency amplifier through a dielectric filter, the intermediate-frequency amplifier is connected to an input end of another dielectric filter through a variable attenuator, an output end of the dielectric filter is connected to a mixer through an intermediate-frequency amplifier, an input end of the mixer is also connected to an output end of a 1550 MHz radio-frequency amplifier; an output end of the mixer is alternatively connected to input ends of a pair of a wide-band filter and a narrow-band filter, output ends of the pair of the wide-band filter and the narrow-band filter are connected to an input end of another intermediate-frequency amplifier through an intermediate-frequency amplifier and a variable attenuator, and an output end of the intermediate-frequency amplifier is alternatively connected to input ends of another pair of a wide-band filter and a narrow-band filter. The ultrashort wave receiving channel module of the utility model has the advantages of wide frequency range, low noise, and low power consumption.
Description
Technical field
The utility model relates to communication and ECM field.
Background technology
The version of the communication and the existing product of electronic countermeasures: Channel Elements is put to put in the plate, by height and is put plate in the plate, two and four veneers of this vibration plate are formed, and cumulative volume is 210*130mm.The technical indicator of existing product is: frequency range is 30～90MHz, and noise factor 19dB imports three rank section-10dBm, and maximum intermediate-frequency bandwidth is 100kHz, changes frequently that the time needs 20mS, and maximum power dissipation is 10W.Therefore existing product big, the Heavy Weight of volume not only, and shielding is lower, and also frequency range is narrower, noise is high, power consumption is also bigger than normal.
Summary of the invention
The utility model purpose is to design a kind of frequency range broad, noise is low, power consumption is little ultrashort wave receive channel module.
The utility model comprises 30～1000MHz radio frequency amplifier and 1650～2620MHz radio frequency amplifier, and the input of two radio frequency amplifiers is connected to the input of first frequency mixer; The output of first frequency mixer is connected on first intermediate frequency amplifier through first dielectric filter; First intermediate frequency amplifier is connected the input of second dielectric filter behind first variable attenuator; The output of second dielectric filter is connected an input of second frequency mixer behind second intermediate frequency amplifier, another input of second frequency mixer connects the output of 1550MHz radio frequency amplifier; Be connected the input of first pair of broadband filter and narrow band filter the output alternative of second frequency mixer, be connected the input of the 3rd intermediate frequency amplifier the output alternative of said first pair of broadband filter and narrow band filter; The output of the 3rd intermediate frequency amplifier is connected the input of the 4th intermediate frequency amplifier behind second variable attenuator; The output alternative ground of the 4th intermediate frequency amplifier connects the input of second pair of broadband filter and narrow band filter, is connected the input of the 5th intermediate frequency amplifier the output alternative of said second pair of broadband filter and narrow band filter.
The utility model can with the 20MHz that receives～1000MHz radio signal through frequency conversion, filtering, amplification after, in two output the 70MHz intermediate-freuqncy signal that bandwidth is optional; Maximum bandwidth can reach 8MHz, and the minimum incoming level of receiver is-113dBm that maximum incoming level is 0dBm.
Receive channel adopts double superheterodyne broadband reception system, and this reception system can realize that to effective inhibition that intermediate frequency disturbs and mirror image disturbs, high intermediate frequency is selected 1620MHz, and Low Medium Frequency is selected 70MHz.Remove the second order product (fL1-fr) that needs and drop in the midband, first mixed product and all the other products are all outside midband.Second local frequency is 1550MHz, and second mixed product removes needed second order product (fi1-fL2) and drops in the 70MHz midband, and all the other products are all far from passband.Place the radio frequency numerical-control attenuator respectively at an intermediate frequency unit and two intermediate frequency units; Can the large-signal that surpass dynamic range headroom be decayed; This numerical-control attenuator has great dynamic range; The AGC control range is 60dB, can realize the complete machine dynamic range of 113dB, accomplishes the effective reception to the 0dBm high level signal.Two median filters have 8MHz, the 200kHz bandwidth of operation is selected, and optional intermediate-frequency bandwidth not only scout by adaptable receiver, the functional requirement of search one, also can carry out parameter as required the optimum reception performance that realizes receiver is set.The utility model is also studied frequency synthesis technique, is satisfying working frequency range, tuning stepping, is changing under the prerequisite of performances such as time frequently, realized local oscillation signal lowly make an uproar mutually, low spuious, satisfied the overall performance requirement of module.The utility model selected for use in a large number wideband section, low noise, big dynamically, the device of high-performance, low-power consumption, small volume, thereby make each item index of product to be improved.Selecting for use of wideband section device makes the frequency range index extend to 20 ~ 1000MHz by 30 original ~ 90MHz; Selecting for use of low-noise device makes the noise factor index be promoted to 14dB by original 19dB; Big dynamically selecting for use of device makes input three rank section indexs be promoted to 0dBm by original-10dBm; Selecting for use of high performance device makes maximum intermediate-frequency bandwidth index extend to 8MHz by original 100kHz, and changing frequently, time index foreshortens to 5mS by original 20mS; Selecting for use of low energy-consumption electronic device makes the maximum power dissipation index drop to 5W by original 10W; Selecting for use of small volume device makes small product size be contracted to 220*40mm by original 210*130mm.
Description of drawings
Fig. 1 is the theory diagram of the utility model.
Embodiment
As shown in Figure 1, the input that the utility model is provided with 30～1000MHz radio frequency amplifier 1 and 2, two radio frequency amplifiers of 1650～2620MHz radio frequency amplifier is connected to the input of first frequency mixer 3.
The output of first frequency mixer 3 is connected on first intermediate frequency amplifier 5 through first dielectric filter 4.
First intermediate frequency amplifier 5 is connected the input of second dielectric filter 7 behind first variable attenuator 6.
The output of second dielectric filter 7 is connected an input of second frequency mixer 9 behind second intermediate frequency amplifier 8, another input of second frequency mixer 9 connects the output of 1550MHz radio frequency amplifier 10.
Be connected the input of first pair of broadband filter 11 and narrow band filter 12 the output alternative of second frequency mixer 9, be connected the input of the 3rd intermediate frequency amplifier 13 the output alternative of broadband filter 11 and narrow band filter 12.
The output of the 3rd intermediate frequency amplifier 13 is connected the input of the 4th intermediate frequency amplifier 15 behind second variable attenuator 14; The output alternative ground of the 4th intermediate frequency amplifier 15 connects the input of second pair of broadband filter 16 and narrow band filter 17, is connected the input of the 5th intermediate frequency amplifier 18 the output alternative of broadband filter 16 and narrow band filter 17.
(30～1000MHz) deliver to a frequency mixer through radio frequency amplifier to the signal that receives from antenna, and (1650～2620MHz) carry out mixing, produce first intermediate-freuqncy signal of 1620MHz with first local oscillation signal.
First intermediate-freuqncy signal is delivered to and is put cell processing in first and (put the unit in first by two-stage dielectric filter, two-stage intermediate frequency amplifier; The one-level variable attenuator is formed); This output is carried out mixing with second local oscillation signal (1550MHz), produces second intermediate-freuqncy signal of 70MHz.
Second intermediate-freuqncy signal is delivered to and is put cell processing in second and (put the unit in second by two-stage SAW filter, three grades of intermediate frequency amplifiers; The one-level variable attenuator is formed); Second intermediate-frequency filter divides broadband (1MHz) filter and arrowband (200KHz) filter; Select wherein one the tunnel through analog switch), after power splitter divides two-way output.
Claims (1)
1. ultrashort wave receive channel module is characterized in that comprising 30～1000MHz radio frequency amplifier and 1650～2620MHz radio frequency amplifier, and the input of two radio frequency amplifiers is connected to the input of first frequency mixer; The output of first frequency mixer is connected on first intermediate frequency amplifier through first dielectric filter; First intermediate frequency amplifier is connected the input of second dielectric filter behind first variable attenuator; The output of second dielectric filter is connected an input of second frequency mixer behind second intermediate frequency amplifier, another input of second frequency mixer connects the output of 1550MHz radio frequency amplifier; Be connected the input of first pair of broadband filter and narrow band filter the output alternative of second frequency mixer, be connected the input of the 3rd intermediate frequency amplifier the output alternative of said first pair of broadband filter and narrow band filter; The output of the 3rd intermediate frequency amplifier is connected the input of the 4th intermediate frequency amplifier behind second variable attenuator; The output alternative ground of the 4th intermediate frequency amplifier connects the input of second pair of broadband filter and narrow band filter, is connected the input of the 5th intermediate frequency amplifier the output alternative of said second pair of broadband filter and narrow band filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205258844U CN202395762U (en) | 2011-12-15 | 2011-12-15 | Ultrashort wave receiving channel module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205258844U CN202395762U (en) | 2011-12-15 | 2011-12-15 | Ultrashort wave receiving channel module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202395762U true CN202395762U (en) | 2012-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205258844U Expired - Lifetime CN202395762U (en) | 2011-12-15 | 2011-12-15 | Ultrashort wave receiving channel module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202395762U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103338048A (en) * | 2013-05-28 | 2013-10-02 | 桂林电子科技大学 | Reception method and unit of radio frequency front end of cognitive spectrum sensing receiver |
| CN103746765A (en) * | 2013-12-25 | 2014-04-23 | 北京长峰广播通讯设备有限责任公司 | Shortwave experiment broadcast electronic countermeasure signal source device and voice signal interference method |
| 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 |
| CN108847866A (en) * | 2018-08-24 | 2018-11-20 | 京信通信系统（中国）有限公司 | Radio-frequency front-end monkey chatter suppression circuit and WLAN access device |
| 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 |
-
2011
- 2011-12-15 CN CN2011205258844U patent/CN202395762U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103338048A (en) * | 2013-05-28 | 2013-10-02 | 桂林电子科技大学 | Reception method and unit of radio frequency front end of cognitive spectrum sensing receiver |
| CN103338048B (en) * | 2013-05-28 | 2015-04-08 | 桂林电子科技大学 | Reception method and unit of radio frequency front end of cognitive spectrum sensing receiver |
| CN103746765A (en) * | 2013-12-25 | 2014-04-23 | 北京长峰广播通讯设备有限责任公司 | Shortwave experiment broadcast electronic countermeasure signal source device and voice signal interference method |
| 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 |
| CN108847866A (en) * | 2018-08-24 | 2018-11-20 | 京信通信系统（中国）有限公司 | Radio-frequency front-end monkey chatter suppression circuit and WLAN access device |
| 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 | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120822 |