CN207573339U - A kind of ultra wide band micro frequency transformer circuit - Google Patents
A kind of ultra wide band micro frequency transformer circuit Download PDFInfo
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- CN207573339U CN207573339U CN201721849493.1U CN201721849493U CN207573339U CN 207573339 U CN207573339 U CN 207573339U CN 201721849493 U CN201721849493 U CN 201721849493U CN 207573339 U CN207573339 U CN 207573339U
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Abstract
The utility model discloses a kind of ultra wide band micro frequency transformer circuit, including：Front-end preselection filter unit, the first mixing unit, the second mixing unit and intermediate frequency output unit, the front-end preselection filter unit, the first mixing unit, the second mixing unit and intermediate frequency output unit are sequentially connected in series；Front-end preselection filter unit is used to input signal carrying out the segment processing frequency range relatively narrow for multiple relative bandwidths, widens receivable input reference signal；First mixing unit is used to input signal upconverting to higher first intermediate-freuqncy signal of frequency；Second mixing unit is used to first intermediate-freuqncy signal being down-converted to the second intermediate-freuqncy signal；Intermediate frequency output unit is used to the further filtering process of second intermediate-freuqncy signal progress obtaining the output signal of unlike signal bandwidth, the utility model effectively reduces circuit design difficulty, reduce circuit volume, local oscillator output frequency range is reduced, effectively realizes the inhibition of local oscillator, image frequency and various combination spurious frequencies.
Description
Technical field
The utility model is related to field of communication technology more particularly to a kind of ultra wide band micro frequency transformer circuits.
Background technology
Ultra wide band converter circuit is commonly used in communication system signal receiver, and major function is will be wide band defeated
The microwave signal for entering signal such as 1-8GHz down-converts to the low frequency signal for the adaptive-bandwidth that digital A/D chip can sample, at present
The traditional scheme of down conversion components is first to be segmented 1-8GHz signals, then filters out image frequency signal and interference signal again, it
It upconverts to a high intermediate-freuqncy signal again afterwards, then passes through wave filter and filter out local oscillator, radio frequency, then intermodulation signal mixes again
For frequency to one than relatively low intermediate-freuqncy signal, traditional down conversion components use the first single intermediate-freuqncy signal, and it is mixed to be directly sent to second
Frequency device obtains desired IF output signal, and traditional down conversion components use the electronic device of discrete, such as：Low noise
Amplifier, wave filter, frequency mixer, phase shifter, solid-state switch etc. combine the function to realize frequency conversion in circuit.
The major defect of tradition down conversion components is at present：Local oscillation signal frequency distance useful signal frequency is close cannot be very
Good filters out, and noise signal is more；For image frequency signal is avoided to interfere, leading portion pre-selection graded filter needs point many sections to locate
Reason, the increase of switch filtering network bring Insertion Loss to increase, need more amplifier offset gains while also increase the whole of module
Body size；Quantity, the assembling of miscellaneous device can cause assembly volume to be difficult to reduce, and complete machine structure complicated difficult is caused to set
Meter.
Utility model content
To solve the above-mentioned problems, the utility model proposes a kind of ultra wide band micro frequency transformer circuits.
Specifically, a kind of ultra wide band micro frequency transformer circuit, including：Front-end preselection filter unit, the first mixing unit,
Two mixing units and intermediate frequency output unit, the front-end preselection filter unit, the first mixing unit, the second mixing unit and intermediate frequency
Output unit is sequentially connected in series；
The front-end preselection filter unit is used to input signal carrying out the segment processing frequency relatively narrow for multiple relative bandwidths
Section, widens receivable input reference signal；
First mixing unit is used to input signal upconverting to higher first intermediate-freuqncy signal of frequency；
Second mixing unit is used to first intermediate-freuqncy signal being down-converted to the second intermediate-freuqncy signal；
The intermediate frequency output unit is used to the further filtering process of second intermediate-freuqncy signal progress obtaining unlike signal
The output signal of bandwidth.
Further, the front-end preselection filter unit includes：First attenuator, first filter, the first amplifier,
Two attenuators and first switch filter unit；
The first switch filter unit is switched including the first multiselect one, second filter, third wave filter, the 4th filtering
Device, the 5th wave filter, the 6th wave filter, the 7th wave filter and the second multiselect one switch, six of the switch of the first multiselect one
Signal output end respectively with second filter, third wave filter, the 4th wave filter, the 5th wave filter, the 6th wave filter and the 7th
The signal input part connection of wave filter, the second filter, third wave filter, the 4th wave filter, the 5th wave filter, the 6th filter
Signal input part of the signal output end of wave device and the 7th wave filter with second multiselect one switch is connect；
First attenuator, first filter, the first amplifier, the second attenuator are sequentially connected in series, second attenuation
The signal output end of device is connect with the signal input part that first multiselect one switchs.
Further, first mixing unit includes：Second amplifier, the 8th wave filter, third attenuator, third are put
Big device, the 9th wave filter, the 4th attenuator, the first frequency mixer, the first local oscillator, the 5th attenuator, second switch filter unit, the
Four amplifiers and the 11st wave filter；
The second switch filter unit is switched including third multiselect one, the 8th wave filter, the 9th wave filter, the tenth filtering
Device and the 4th multiselect one switch, three signal output ends that the third multiselect one switchs and the 8th wave filter, the 9th filter
The signal input part of wave device and the tenth wave filter connects, the signal of the 8th wave filter, the 9th wave filter and the tenth wave filter
Signal input part of the output terminal with the 4th multiselect one switch is connect；
Second amplifier, the 8th wave filter, third attenuator, third amplifier, the 9th wave filter, the 4th attenuation
Device, the first frequency mixer, the 5th attenuator, second switch filter unit, the 4th amplifier and the 11st wave filter are sequentially connected in series, institute
The signal input part for stating the second amplifier is connect with the signal output end that second multiselect one switchs, the letter of first local oscillator
Number output terminal is connect with the local oscillation signal input terminal of first frequency mixer, the signal output end of the 5th attenuator with it is described
The signal input part connection that third multiselect one switchs, the signal output end and the 4th amplifier of the 4th multiselect one switch
Signal input part connection.
Further, second mixing unit includes：6th attenuator, the second frequency mixer, the second local oscillator, the 7th attenuation
Device and the 12nd wave filter, the 6th attenuator, the second frequency mixer, the second local oscillator, the 7th attenuator and the 12nd wave filter
It being sequentially connected in series, the signal input part of the 6th attenuator is connect with the signal output end of the 12nd wave filter, and described
The signal output end of two local oscillators is connect with the local oscillation signal input terminal of second frequency mixer.
Further, the intermediate frequency output unit includes：8th attenuator, the 5th amplifier, third switch filtering unit,
6th amplifier, the 18th wave filter and the 9th attenuator；
The third switch filtering unit is switched including the 5th multiselect one, the 13rd wave filter, the 14th wave filter, the tenth
Five wave filters, the 16th wave filter, the 17th wave filter and the 6th multiselect one switch, five letters of the 5th multiselect one switch
Number output terminal respectively with the 13rd wave filter, the 14th wave filter, the 15th wave filter, the 16th filter
The signal input part of wave device and the 17th wave filter connects, the 13rd wave filter, the 14th wave filter, described
The signal output end of 15th wave filter, the 16th wave filter and the 17th wave filter with the 6th multiselect one
The signal input part connection of switch；
8th attenuator, the 5th amplifier, third switch filtering unit, the 6th amplifier, the 18th wave filter and
9th attenuator is sequentially connected in series, and the signal input part of the 8th attenuator connects with the signal output end of the 12nd wave filter
It connects, the signal output end of the 5th amplifier is connect with the signal input part that the 5th multiselect one switchs, more than the described 6th
The signal output end of a switch is selected to be connect with the signal input part of the 6th amplifier.
The beneficial effects of the utility model are：The utility model is inputted by the way that signal subsection is preselected, and correspondence is different
Radio frequency band exports different intermediate frequencies, rationally sets height local oscillator, and different radio frequency band local oscillator reusables reduces the defeated of local oscillator
Go out bandwidth, effectively reduce the design difficulty of local oscillator, reduce the volume of local oscillation circuit；The mixing schemes of multiple first intermediate frequency outputs
The input band range of frequency converter is widened, in addition the mode of double conversion, local frequency and rf frequency are apart from far so that
The inhibition of local oscillator becomes relatively easy, obtains good clutter recognition；Pass through the different people industry control according to input signal power
The pad value of front end attenuator processed is real by way of output terminal switch filtering to obtain different operating mode and working effect
Output signal adaptive-bandwidth is showed；With respect to traditional frequency conversion device conversion system, band limits is received in broadening, image frequency is improved and inhibits,
It is anti-interference, it improves spurious reduction, miniaturization etc. and improves a lot.
Description of the drawings
Fig. 1 is a kind of ultra wide band micro frequency transformer electrical block diagram；
Fig. 2 is front-end preselection filter unit structure diagram；
Fig. 3 is the first mixing unit structure diagram；
Fig. 4 is the second mixing unit structure diagram；
Fig. 5 is intermediate frequency output unit structure diagram.
Specific embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, existing control description of the drawings
Specific embodiment of the present utility model.
A kind of ultra wide band micro frequency transformer circuit as shown in Figure 1, including：Front-end preselection filter unit, the first mixing are single
Member, the second mixing unit and intermediate frequency output unit, the front-end preselection filter unit, the first mixing unit, the second mixing unit
And intermediate frequency output unit is sequentially connected in series；
The front-end preselection filter unit is used to input signal carrying out the segment processing frequency relatively narrow for multiple relative bandwidths
Section, widens receivable input reference signal；
First mixing unit is used to input signal upconverting to higher first intermediate-freuqncy signal of frequency；
Second mixing unit is used to first intermediate-freuqncy signal being down-converted to the second intermediate-freuqncy signal；
The intermediate frequency output unit is used to the further filtering process of second intermediate-freuqncy signal progress obtaining unlike signal
The output signal of bandwidth.
As shown in Fig. 2, the front-end preselection filter unit includes：First attenuator, first filter, the first amplifier,
Second attenuator and first switch filter unit；
The first switch filter unit is switched including the first multiselect one, second filter, third wave filter, the 4th filtering
Device, the 5th wave filter, the 6th wave filter, the 7th wave filter and the second multiselect one switch, six of the switch of the first multiselect one
Signal output end respectively with second filter, third wave filter, the 4th wave filter, the 5th wave filter, the 6th wave filter and the 7th
The signal input part connection of wave filter, the second filter, third wave filter, the 4th wave filter, the 5th wave filter, the 6th filter
Signal input part of the signal output end of wave device and the 7th wave filter with second multiselect one switch is connect；
First attenuator, first filter, the first amplifier, the second attenuator are sequentially connected in series, second attenuation
The signal output end of device is connect with the signal input part that first multiselect one switchs.
Wherein, the first attenuator is used for adjusting the amplitude of input signal, when signal power is smaller, reduces attenuation, ensures to become
The noise coefficient of frequency device when signal power is larger, increases attenuation, ensures that low-noise amplifier below will not saturation；First filter
Wave device is low-pass filter, for carrying out a simple filtering process to signal, if the input signal bandwidth of frequency converter is very
It is narrow to use a bandpass filter；First amplifier is low-noise amplifier, for input signal is amplified, to mend
The loss of follow-up preselection switch wave filter group and frequency converter is repaid, while also reduces noise coefficient, low-noise amplifier uses arsenic
The microwave low-noise amplifier integrated chip for changing gallium substrate realizes that the chip that can be selected for the frequency converter of 1-8GHz frequency ranges has
Middle electric 13 the BW302 of HMC462, Bo Wei company of NC1084C-109A, Hittite company etc.；Second attenuator be used for pair
The amplitude of input signal is further adjusted, and when bigger by the signal amplitude of low-noise amplifier, can tune up number
The pad value of attenuator is controlled to ensure that the signal amplitude for being sent to the first frequency mixer is less than -15dBm, to ensure the group of local oscillator and radio frequency
Close spuious can be inhibited well；First switch filter unit is converted to the signal in broadband by way of segmentation multiple
The relatively narrow signal of bandwidth, is implemented as：The wideband input signal of 1000MHz~8000MHz of input is divided into 0.99
~1.51GHz, 1.49~2.01GHz, 1.99~3.01GHz, 2.99~4.01GHz, 3.99~6.01GHz and 5.99~
Six frequency ranges such as 8.01GHz to ensure that the signal frequency bandwidth for being sent into the first frequency mixer will not be too wide, have avoided miscellaneous be scattered in
Within signal bandwidth；The switch of first switch filter unit selects rich prestige public here using the integrated switch of gallium arsenide substrate
The BW124 of department, entire switch filtering unit use microwave assembly technology, and switch chip is with wave filter directly by being sintered on cavity
Microstrip line substrate be attached；Conventional frequency conversion component here mostly filters out image frequency signal using cavity body filter, this
In we use small volume MEMS filter, silicon substrate MEMS filter not only have excellent frequency selection capabilities (high Q)
With low insertion loss, and in volume be much smaller than conventional microwave filters（General width is tens mm）, according to offer
MEMS filter index, the width for calculating the single silicon substrate MEMS filter of filter size are up to 5mm, ensure that wave filter can
Reach the high degree of suppression outside band, microstrip line connect place with MEMS filter and makes coplanar waveguide transmission line structure, with gold ribbon key
It closes and is connected, particularly the ground terminal of coplanar waveguide structure and MEMS filter will also be linked, and ensure the continuity on ground, ensure
The high background Rejection of MEMS filter.
As shown in figure 3, first mixing unit includes：Second amplifier, the 8th wave filter, third attenuator, third
Amplifier, the 9th wave filter, the 4th attenuator, the first frequency mixer, the first local oscillator, the 5th attenuator, second switch filter unit,
4th amplifier and the 11st wave filter；
The second switch filter unit is switched including third multiselect one, the 8th wave filter, the 9th wave filter, the tenth filtering
Device and the 4th multiselect one switch, three signal output ends that the third multiselect one switchs and the 8th wave filter, the 9th filter
The signal input part of wave device and the tenth wave filter connects, the signal of the 8th wave filter, the 9th wave filter and the tenth wave filter
Signal input part of the output terminal with the 4th multiselect one switch is connect；
Second amplifier, the 8th wave filter, third attenuator, third amplifier, the 9th wave filter, the 4th attenuation
Device, the first frequency mixer, the 5th attenuator, second switch filter unit, the 4th amplifier and the 11st wave filter are sequentially connected in series, institute
The signal input part for stating the second amplifier is connect with the signal output end that second multiselect one switchs, the letter of first local oscillator
Number output terminal is connect with the local oscillation signal input terminal of first frequency mixer, the signal output end of the 5th attenuator with it is described
The signal input part connection that third multiselect one switchs, the signal output end and the 4th amplifier of the 4th multiselect one switch
Signal input part connection.
The amplifying circuit of the first mixing unit front end be used for signal is amplified and filter out amplification after generate it is humorous
Wave component, attenuator are used as the matching of front stage circuit, for the ease of filtering out the spuious letter that mixing generates in the present embodiment
Number and reduce the design difficulty of local oscillator, employ suitable high local oscillator or low local oscillator mode, pre-selection filter unit processing will be passed through
Segmentation input signal upconvert to a distance input signal higher first intermediate-freuqncy signal of frequency farther out, be segmented different defeated
Enter signal and correspond to the first different IF frequency, the spurious signal generated after being mixed for the first time inhibition is made to become relatively easy, from
And the design difficulty of wave filter is reduced, the miniaturization of module is also more convenient, specifically, front-end filtering unit is by the signal of input
It is divided into six different frequency ranges, when being mixed herein, local frequency is adjusted according to segmentation here, so as to mixed different the
One intermediate frequency, here we input signal has been divided into three sections, corresponding local oscillator frequency range also becomes three sections so as to obtain three
One IF frequency, i.e.,：8930MHz, 11930MHz and 12930MHz, intermediate-frequency filter here using haveing excellent performance, volume compared with
Small MEMS filter is spuious to filter out local oscillation signal and other mixing, and entire switch filtering unit equally uses micropackaging work
Skill.
As shown in figure 4, second mixing unit includes：6th attenuator, the second frequency mixer, the second local oscillator, the 7th decline
Subtract device and the 12nd wave filter, the 6th attenuator, the second frequency mixer, the second local oscillator, the 7th attenuator and the 12nd filtering
Device is sequentially connected in series, and the signal input part of the 6th attenuator is connect with the signal output end of the 12nd wave filter, described
The signal output end of second local oscillator is connect with the local oscillation signal input terminal of second frequency mixer.
Second mixing unit is mainly used to high-frequency first intermediate-freuqncy signal that the first mixing unit is sent being down-converted to
The intermediate-freuqncy signal to be exported, the frequency of local oscillation signal are generally a point-frequency signal, and wave filter here is mainly used to pair
It is mixed the spuious of generation for the second time further being filtered out, wave filter can also use MEMS filter herein, further
Diminution module size, still using high local oscillator mode, the local frequency of selection is local oscillator herein：13000MHz、
12000MHz and 9000MHz totally three points frequencies.
As shown in figure 5, the intermediate frequency output unit includes：8th attenuator, the 5th amplifier, third switch filtering list
Member, the 6th amplifier, the 18th wave filter and the 9th attenuator；
The third switch filtering unit is switched including the 5th multiselect one, the 13rd wave filter, the 14th wave filter, the tenth
Five wave filters, the 16th wave filter, the 17th wave filter and the 6th multiselect one switch, five letters of the 5th multiselect one switch
Number output terminal respectively with the 13rd wave filter, the 14th wave filter, the 15th wave filter, the 16th filter
The signal input part of wave device and the 17th wave filter connects, the 13rd wave filter, the 14th wave filter, described
The signal output end of 15th wave filter, the 16th wave filter and the 17th wave filter with the 6th multiselect one
The signal input part connection of switch；
8th attenuator, the 5th amplifier, third switch filtering unit, the 6th amplifier, the 18th wave filter and
9th attenuator is sequentially connected in series, and the signal input part of the 8th attenuator connects with the signal output end of the 12nd wave filter
It connects, the signal output end of the 5th amplifier is connect with the signal input part that the 5th multiselect one switchs, more than the described 6th
The signal output end of a switch is selected to be connect with the signal input part of the 6th amplifier.
The second intermediate-freuqncy signal that intermediate frequency output unit is mainly used to obtain after second is mixed further is filtered
Processing, and the output frequency of different signal bandwidths is obtained by using the mode of switching channel, it specifically can be according to user
It needs, five kinds of different output bandwidths is provided, i.e., be made of five different wave filters of pass band width, it can realize 70 ±
The intermediate frequency output of 0.5MHz, 70 ± 1MHz, 70 ± 2.5MHz, 70 ± 5MHz and 70 ± 10MHz totally five different bandwidth, adapts to
The different data demodulation demand of user.
It should be noted that for aforementioned each embodiment of the method, in order to be briefly described, therefore it is all expressed as to a system
The combination of actions of row, but those skilled in the art should know, the application is not limited by described sequence of movement, because
For according to the application, certain some step may be used other sequences or be carried out at the same time.Secondly, those skilled in the art also should
Know, embodiment described in this description belongs to preferred embodiment, involved action and unit not necessarily this Shen
It please be necessary.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, is not described in some embodiment
Part, may refer to the associated description of other embodiment.
One of ordinary skill in the art will appreciate that realizing all or part of flow in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in computer read/write memory medium
In, the program is when being executed, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, ROM, RAM etc..
Above disclosed is only the utility model preferred embodiment, cannot limit the utility model with this certainly
Interest field, therefore equivalent variations made according to the utility model claims still belong to the range that the utility model is covered.
Claims (5)
1. a kind of ultra wide band micro frequency transformer circuit, which is characterized in that including：Front-end preselection filter unit, the first mixing unit,
Second mixing unit and intermediate frequency output unit, the front-end preselection filter unit, the first mixing unit, the second mixing unit and in
Frequency output unit is sequentially connected in series；
The front-end preselection filter unit is used to input signal carrying out the segment processing frequency range relatively narrow for multiple relative bandwidths, opens up
Wide receivable input reference signal；
First mixing unit is used to input signal upconverting to higher first intermediate-freuqncy signal of frequency；
Second mixing unit is used to first intermediate-freuqncy signal being down-converted to the second intermediate-freuqncy signal；
The intermediate frequency output unit is used to the further filtering process of second intermediate-freuqncy signal progress obtaining unlike signal bandwidth
Output signal.
A kind of 2. ultra wide band micro frequency transformer circuit according to claim 1, which is characterized in that the front-end preselection filtering
Unit includes：First attenuator, first filter, the first amplifier, the second attenuator and first switch filter unit；
The first switch filter unit is switched including the first multiselect one, second filter, third wave filter, the 4th wave filter,
5th wave filter, the 6th wave filter, the 7th wave filter and the second multiselect one switch, six signals that first multiselect one switchs
Output terminal filters respectively with second filter, third wave filter, the 4th wave filter, the 5th wave filter, the 6th wave filter and the 7th
The signal input part connection of device, the second filter, third wave filter, the 4th wave filter, the 5th wave filter, the 6th wave filter
And the 7th wave filter signal output end with second multiselect one switch signal input part connect；
First attenuator, first filter, the first amplifier, the second attenuator are sequentially connected in series, second attenuator
Signal output end is connect with the signal input part that first multiselect one switchs.
A kind of 3. ultra wide band micro frequency transformer circuit according to claim 2, which is characterized in that first mixing unit
Including：Second amplifier, the 8th wave filter, third attenuator, third amplifier, the 9th wave filter, the 4th attenuator, first mix
Frequency device, the first local oscillator, the 5th attenuator, second switch filter unit, the 4th amplifier and the 11st wave filter；
The second switch filter unit is switched including third multiselect one, the 8th wave filter, the 9th wave filter, the tenth wave filter and
4th multiselect one switchs, three signal output ends that the third multiselect one switchs and the 8th wave filter, the 9th wave filter
And the tenth wave filter signal input part connection, the 8th wave filter, the 9th wave filter and the tenth wave filter signal output
Signal input part of the end with the 4th multiselect one switch is connect；
Second amplifier, the 8th wave filter, third attenuator, third amplifier, the 9th wave filter, the 4th attenuator,
One frequency mixer, the 5th attenuator, second switch filter unit, the 4th amplifier and the 11st wave filter are sequentially connected in series, and described
The signal input part of two amplifiers is connect with the signal output end that second multiselect one switchs, and the signal of first local oscillator is defeated
Outlet is connect with the local oscillation signal input terminal of first frequency mixer, signal output end and the third of the 5th attenuator
The signal input part connection that multiselect one switchs, the letter of the signal output end and the 4th amplifier of the 4th multiselect one switch
The connection of number input terminal.
A kind of 4. ultra wide band micro frequency transformer circuit according to claim 1, which is characterized in that second mixing unit
Including：6th attenuator, the second frequency mixer, the second local oscillator, the 7th attenuator and the 12nd wave filter, the 6th attenuator,
Second frequency mixer, the second local oscillator, the 7th attenuator and the 12nd wave filter are sequentially connected in series, the signal input of the 6th attenuator
End is connect with the signal output end of the 12nd wave filter, the signal output end of second local oscillator and second frequency mixer
Local oscillation signal input terminal connection.
A kind of 5. ultra wide band micro frequency transformer circuit according to claim 4, which is characterized in that the intermediate frequency output unit
Including：8th attenuator, the 5th amplifier, third switch filtering unit, the 6th amplifier, the 18th wave filter and the 9th attenuation
Device；
The third switch filtering unit is switched including the 5th multiselect one, the 13rd wave filter, the 14th wave filter, the 15th filter
Wave device, the 16th wave filter, the 17th wave filter and the 6th multiselect one switch, and five signals of the 5th multiselect one switch are defeated
Outlet respectively with the 13rd wave filter, the 14th wave filter, the 15th wave filter, the 16th wave filter
And the signal input part connection of the 17th wave filter, the 13rd wave filter, the 14th wave filter, the described tenth
The signal output end of five wave filters, the 16th wave filter and the 17th wave filter is switched with the 6th multiselect one
Signal input part connection；
8th attenuator, the 5th amplifier, third switch filtering unit, the 6th amplifier, the 18th wave filter and the 9th
Attenuator is sequentially connected in series, and the signal input part of the 8th attenuator is connect with the signal output end of the 12nd wave filter,
The signal output end of 5th amplifier is connect with the signal input part that the 5th multiselect one switchs, the 6th multiselect one
The signal output end of switch is connect with the signal input part of the 6th amplifier.
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| CN201721849493.1U CN207573339U (en) | 2017-12-26 | 2017-12-26 | A kind of ultra wide band micro frequency transformer circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108923807A (en) * | 2018-07-26 | 2018-11-30 | 北京遥感设备研究所 | A kind of S-band reception device of Deceiving interference |
| CN109150207A (en) * | 2018-09-29 | 2019-01-04 | 扬州海科电子科技有限公司 | A kind of self-mixing converter plant |
| CN109257057A (en) * | 2018-11-08 | 2019-01-22 | 扬州海科电子科技有限公司 | A kind of ultra wide band Superheterodyne receiving system |
| CN109412989A (en) * | 2018-12-24 | 2019-03-01 | 北京无线电计量测试研究所 | A kind of millimeter wave agile signal open loop amplitude control method and device |
| CN109462410A (en) * | 2018-11-09 | 2019-03-12 | 四川九洲电器集团有限责任公司 | A kind of transmitter and its signal processing method |
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- 2017-12-26 CN CN201721849493.1U patent/CN207573339U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108923807A (en) * | 2018-07-26 | 2018-11-30 | 北京遥感设备研究所 | A kind of S-band reception device of Deceiving interference |
| CN109150207A (en) * | 2018-09-29 | 2019-01-04 | 扬州海科电子科技有限公司 | A kind of self-mixing converter plant |
| CN109150207B (en) * | 2018-09-29 | 2023-09-29 | 扬州海科电子科技有限公司 | Self-mixing frequency conversion device |
| CN109257057A (en) * | 2018-11-08 | 2019-01-22 | 扬州海科电子科技有限公司 | A kind of ultra wide band Superheterodyne receiving system |
| CN109257057B (en) * | 2018-11-08 | 2023-09-29 | 扬州海科电子科技有限公司 | Ultra-wideband superheterodyne receiving system |
| CN109462410A (en) * | 2018-11-09 | 2019-03-12 | 四川九洲电器集团有限责任公司 | A kind of transmitter and its signal processing method |
| CN109412989A (en) * | 2018-12-24 | 2019-03-01 | 北京无线电计量测试研究所 | A kind of millimeter wave agile signal open loop amplitude control method and device |
| CN109412989B (en) * | 2018-12-24 | 2021-10-22 | 北京无线电计量测试研究所 | Open-loop amplitude control method and device for millimeter wave agile signal |
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