CN103594763A - Frequency selective surface filter with memory function - Google Patents
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Abstract
The invention discloses a frequency selective surface filter with a memory function, and belongs to the technical field of microwaves. The technical problems that in the prior art, a filter is complex in manufacturing, an external circuit is needed, the resonance characteristic of frequency selective surface period units is easy to damage, and selected materials pollute environment are solved. The filter comprises a frequency selective surface and temperature control equipment, the frequency selective surface comprises a metal layer and period units, each period unit is composed of a sheet-shaped structure, a column-shaped structure and a through hole formed in the metal layer, the sheet-shaped structures are connected with the inner walls of the through holes through the column-shaped structures, and the column-shaped structures are made of shape memory alloy with the two-way shape memory effect. The filter enables the frequency selective surface to present the different period units by controlling the frequency selective surface according to needs, the pass band frequency conversion of the filter can be achieved, the pass band on-off controllability of the filter can be achieved, the structure is simple, and safety and environmental protection are achieved in the manufacturing and use process.
Description
Technical field
The present invention relates to a kind of frequency-selective surfaces filter with memory function, belong to microwave technical field.
Background technology
Frequency-selective surfaces (Frequency Selective Surface, FSS) be a kind of two-dimension periodic array structure by the perforate cell formation of periodic arrangement on the metal patch unit of periodically arranging or metal screen, it can make electromagnetic wave that total reflection or total transmissivity occur at resonance frequency place, is therefore a kind of spatial filter that wave frequency is had to selection effect.
FSS has a wide range of applications in microwave regime as band pass filter.As adopt FSS to prepare the dichroism subreflector of Cassegrain antenna, and can make the feed of two different frequencies share same reflecting surface, saved system space; Use FSS technology to prepare radome, can reduce the outer RCS of band of flight weapons antenna, thereby realize radar invisible function; Wall using FSS structure as building or the interlayer of door and window, can realize the electromagnetic transmission of special frequency channel, and shield the signal of other frequency ranges.
Yet after prepared by the said goods, the band-pass filtering property that utilizes FSS to realize just cannot change.For card match Glenn system, dichroism subreflector cannot adapt to different feeds according to demand; Existing FSS radome, in the face of enemy's detection radar situation identical with one's own side's guidance radar frequency range, loses stealthy function because shielding this frequency range electromagnetic wave; And shielded enclosure can not be realized change or the full frequency band shielding of communication channel according to actual needs.This limitation makes existing FSS as spatial filter, in application, be difficult to practical requirement.
Publication number is the Chinese patent of 103094647A, a kind of double-layer frequency selective surfaces filter with frequency conversion function is disclosed, this filter adopts barium strontium titanate as the intermediate course of double-deck FSS band pass filter, metal level by FSS applies electric field to interlayer, the dielectric constant of barium strontium titanate sandwich material is changed, can realize the change of this band pass filter passband center frequency point, realize the frequency conversion function of passband; Publication number is the Chinese patent of 103022602A, a kind of spatial filter with switching function is disclosed, this filter adopts the mixture of conducting polymer and solid electrolyte composition as the intermediate course of double-deck FSS band pass filter, metal level by FSS applies electric field to mixture interlayer, control sandwich material changes between conductor and insulator, can realize frequency selection function or the full frequency band shielding of this bilayer FSS band pass filter, realize the controlled function of passband open and close.But the sandwich material preparation process of above two kinds of filters is more loaded down with trivial details, filter needs external circuits simultaneously, and will on FSS metal level, prepare electrode, and this can exert an influence to the resonance characteristic of FSS unit.Based on above-mentioned several reasons, make these two kinds of FSS filters exist not convenient factor in preparation with in using.
Publication number is the Chinese patent of 102709625A, a kind of filter with the thick screen frequency-selective surfaces of frequency conversion function is disclosed, this filter is inlayed optical semiconductor sensing device in the seam of the hole of FSS figure, when the irradiation of varying strength is on light-sensitive device, the impedance meeting of device changes, and then realizes the object that resonance frequency changes.But in actual fabrication process, optical semiconductor sensing device need to be welded in the gap of FSS graphic element, pad can exert an influence to the resonance characteristic of FSS unit, and if the resonance frequency of filter is very high, the size of periodic unit will be very little, cause great difficulty can to welding device, this becomes the drawback of this filter in reality preparation and operation.
Publication number is the Chinese patent of 103346366A, a kind of spatial filter that adopts thermal induced phase transition material to prepare is disclosed, publication number is the Chinese patent of 103346367A, disclose a kind of serviceability temperature and controlled the spatial filter of passband switch, above two kinds of FSS filters that adopt the thermal induced phase transition materials such as vanadium dioxide to prepare, by temperature regulating device, change the temperature of thermal induced phase transition material, can realize control thermal induced phase transition material and between conductor and insulator, carry out reversible transformation, and then realize band pass filter passband and open, close controlled target, also can realize the function of electromagnetic wave all-pass or gating.But vanadium dioxide is a kind of poisonous chemical substance, irritant to human body skin, also can pollute environment simultaneously, this is the defect of this type of filter.
Summary of the invention
The object of the invention is to solve prior art median filter and prepare loaded down with trivial detailsly, need external circuits, the resonance characteristic of FSS unit is easily destroyed, and the technical problem of the material contamination environment of selecting, and a kind of frequency-selective surfaces filter with memory function is provided.
The frequency-selective surfaces filter with memory function of the present invention, comprising: frequency-selective surfaces and temperature controlling instruments; Described frequency-selective surfaces comprises the periodic unit of periodic arrangement on metal level and metal level; Described periodic unit is comprised of through hole, sheet type structure and column type structure, described through hole is located on metal level, the two ends of described column type structure are fixedly connected with the outer wall of sheet type structure and the inwall of through hole respectively, described column type structure adopts marmem to make, column type structure has double process shape-memory effect, and can change by double process shape-memory effect the relative position relation of sheet type structure and through hole; Described temperature controlling instruments is controlled the temperature of column type structure, and does not affect the effect of microwave to frequency-selective surfaces.
Further, the material of described metal level and sheet type structure is marmem.
Further, described marmem is copper zinc-aluminium nickel (Cu-Zn-Al-Ni) alloy, titanium nickel (Ti-Ni) alloy, copper aluminium nickel (Cu-Al-Ni) alloy, copper zinc-tin (Cu-Zn-Sn) alloy or ferrimanganic silicon (Fe-Mn-Si) alloy.
Further, described temperature controlling instruments is arranged on the side of frequency-selective surfaces.
Further, described through hole and sheet type structure are similar figures.
Further, described through hole is circular hole, and described type structure is disk.
Further, the double process shape-memory effect that described column type structure has makes sheet type structure take column type structure to be rotated as rotating shaft, and the angle of sheet type structure place plane and through hole place plane can be 60 ° and 10 °.
Further, the double process shape-memory effect that described column type structure has makes sheet type structure away from through hole place plane, and the angle of sheet type structure place plane and through hole place plane can be 65 ° and 8 °.
Operation principle:
Marmem becomes a kind of shape when high-temperature-phase, be designated as high-temperature-phase shape, when low-temperature phase, be deformed into another kind of shape, be designated as low-temperature phase shape, while heating again, can revert to high-temperature-phase shape, and can revert to low-temperature phase shape when again cooling, can follow the spontaneous high and low temperature phase shape of reversibly repeatedly recovering of lifting of temperature.The column type structure of filter of the present invention adopts marmem preparation, there is double process shape-memory effect, when high temperature and low temperature, remember difformity, and then the relative position of related type structure and through hole changes, make frequency-selective surfaces periodic unit present difformity when high temperature and low temperature, and then realize the change of band pass filter center frequency point, be i.e. the frequency conversion function of passband, also can realize the selection of band pass filter frequency or full frequency band shielding, i.e. the function that passband open and close are controlled.
Beneficial effect of the present invention:
The frequency-selective surfaces filter with memory function of the present invention can be remembered difform periodic unit, therefore control frequency selects surface to make it present different periodic unit shapes according to demand, both can realize the function that band pass filter center frequency point changes, realize the passband frequency conversion of band pass filter, also can realize according to demand the function that frequency is selected or full frequency band shields, realizing the passband of band pass filter opens, close controlled, and simple in structure, preparation is with operation is very easy, safety and environmental protection in preparation and use procedure, improved practical application and the reliability of frequency-selective surfaces as spatial filter.
Accompanying drawing explanation
Fig. 1 is the perspective view that the present invention has the frequency-selective surfaces filter of memory function;
Fig. 2 is the frequency-selective surfaces filter that the present invention has memory function, the structural representation of periodic unit when machining completes;
Fig. 3 is the end view of Fig. 2;
Fig. 4 is the frequency-selective surfaces filter that the present invention has memory function, and when realizing the passband frequency conversion function of band pass filter, periodic unit is in the perspective view of low-temperature phase;
Fig. 5 is the end view of Fig. 4;
Fig. 6 is the frequency-selective surfaces filter that the present invention has memory function, and when realizing the passband frequency conversion function of band pass filter, periodic unit is in the perspective view of high-temperature-phase;
Fig. 7 is the end view of Fig. 6;
Fig. 8 is the frequency-selective surfaces filter that the present invention has memory function, when realizing the passband frequency conversion function of band pass filter, aligns the transmission characteristic comparison diagram of incident electromagnetic wave;
Fig. 9 is the frequency-selective surfaces filter that the present invention has memory function, and when realizing the passband open and close controllable function of band pass filter, periodic unit is in the perspective view of low-temperature phase;
Figure 10 is the end view of Fig. 9;
Figure 11 is the frequency-selective surfaces filter that the present invention has memory function, and when realizing the passband open and close controllable function of band pass filter, periodic unit is in the perspective view of high-temperature-phase;
Figure 12 is the end view of Figure 11;
Figure 13 is the frequency-selective surfaces filter that the present invention has memory function, when realizing the passband open and close controllable function of band pass filter, aligns the transmission characteristic comparison diagram of incident electromagnetic wave.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As Figure 1-3, there is the FSS filter of memory function, comprising: FSS and temperature controlling instruments 3, temperature controlling instruments 3 is positioned at the one or both sides of FSS, does not affect the irradiation of microwave to FSS, FSS comprises the periodic unit 2 of periodic arrangement on metal level 1 and metal level 1, periodic unit 2 is by through hole 4, sheet type structure 5 and column type structure 6 form, through hole 4 is located on metal level 1, the size of sheet type structure 5 is less than through hole 4, can be placed in through hole 4, one end of column type structure 6 is fixedly connected with the outer wall of sheet type structure 5, the other end of column type structure 6 is fixedly connected with the inwall of through hole 4, the material of column type structure 6 is marmem, marmem can be remembered different shapes at low-temperature phase and high-temperature-phase, make column type structure 6 there is double process shape-memory effect, the double process shape-memory effect that column type structure 6 has can change according to the variation of temperature the relative position relation of sheet type structure 5 and through hole 4, and then the shape of periodic unit 2 is changed, realizing passband frequency conversion function or the passband of band pass filter opens, close controllable function, temperature controlling instruments 3 is controlled the temperature of column type structure 6, by heating or freezing, make the temperature of column type structure 6 raise or reduce.
In present embodiment, the double process shape-memory effect that column type structure 6 has makes column type structure 6 and through hole 4 in same plane, and sheet type structure 5 be take column type structure 6 and is rotated as rotating shaft, during high-temperature-phase, the angle of sheet type structure 5 place planes and through hole 4 place planes is 10 °, during low-temperature phase, the angle of sheet type structure 5 place planes and through hole 4 place planes is 60 °, along with the variation between high-temperature-phase and low-temperature phase of the temperature of column type structure 6, the angle of sheet type structure 5 place planes and through hole 4 place planes changes between 10 °-60 °.
In present embodiment, when the double process shape-memory effect that column type structure 6 has makes sheet type structure 5 away from through hole 4 place plane, during high-temperature-phase, the angle of sheet type structure 5 place planes and through hole 4 place planes is 8 °, during low-temperature phase, the angle of sheet type structure 5 place planes and through hole 4 place planes is 65 °, and along with the variation between high-temperature-phase and low-temperature phase of the temperature of column type structure 6, the angle of sheet type structure 5 place planes and through hole 4 place planes changes between 8 °-65 °.
In present embodiment, for making processing easier, preferred metal layers 1 and sheet type structure 5 are also marmem, and metal level 1 is identical with sheet type structure 5 thickness, column type structure 6, metal level 1 and sheet type structure 5 disposal moldings.
In the present invention, marmem can be copper zinc-aluminium nickel alloy, Ti-Ni alloy, Batterium, Jackson's alloy or FeMnSi alloy, and present embodiment adopts copper zinc-aluminium nickel alloy.
In the present invention, through hole 4 and sheet type structure 5 are similar figures, when through hole 4 is with sheet type structure 5 during at same plane, through hole 4 has same central point with sheet type structure 5, can be that through hole 4 is circular hole, and sheet type structure 5 is disk, can be that through hole 4 is square opening, sheet type structure 5 is square plate, can be that through hole 4 is Y shape hole, and sheet type structure 5 is Y shape sheet, can also be that through hole 4 is cruciform vent, sheet type structure 5 is cross sheet, and it is circular hole that present embodiment adopts through hole 4, and sheet type structure 5 is disk.
In present embodiment, column type structure 6 adopts cylinder.
In the present invention, temperature controlling instruments 3 can be Cooling and heating blower or air conditioner, and present embodiment adopts Cooling and heating blower.
The preparation of the filter of present embodiment comprises the moulding of FSS machining and shape memory training.
If only have column type structure 6 to adopt marmem preparation, metal level 1 and sheet type structure 5 adopt the good conductor machine-shapings such as copper, and the machining moulding step of the FSS of filter is as follows:
Selecting cathode copper, No. 0 zinc, No. 00 aluminium and electrolytic nickel is raw material, through intermediate frequency furnace melting, smelting temperature is 1250 ℃, adopt and in bag, to pour method and add lanthanum cerium compound rare-earth fining agent RE (La+Ce), the mass fraction of each element is, zinc: 25.7%, aluminium: 3.8%, nickel: 0.8%, compound rare-earth: 0.08%, all the other are copper; Then casting ingot-forming, is heated to 850 ℃ of insulation 24h cooling with stove, and epidermis is removed in cutting, then carries out hot rolling and cold rolling after ingot is incubated to 30min 850 ℃ time; Adopt the mode of numerical controlled machinery processing to prepare cylinder, the diameter phi of cylinder
3=0.5mm, the length L=1.8mm of cylinder;
Adopt the mode of numerical controlled machinery processing on the copper coin of thickness d=2mm, to prepare the circular hole unit of arranging by the square cycle, period T=15mm, the diameter phi of circular hole
1=12mm, obtains metal level 1; Adopt the mode of numerical controlled machinery processing to prepare thickness d=2mm, diameter phi
2the circular copper paster of=10.4mm; Adopt the mode of numerical controlled machinery processing to prepare respectively cylindrical hole, the diameter phi in hole in the central authorities of circular-hole internal-wall and the central authorities of disk outer wall
4=0.496mm, the degree of depth h=0.5mm in hole.
The metal level processing 1 and disk are immersed after being incubated 60min in the silicone oil of 300 ℃ and take out, the two ends of cylinder are inserted respectively in the aperture of circular-hole internal-wall and disk outer wall, and keep disk in the middle of the plane of metal level 1, until the temperature of metal level 1 and disk, be down to after room temperature, cylinder is about to circular hole and is connected with circular patch, has so far completed the preparation of FSS.
If metal level 1, sheet type structure 5 and column type structure 6 are marmem, the machining moulding step of the FSS of filter is as follows:
Selecting cathode copper, No. 0 zinc, No. 00 aluminium and electrolytic nickel is raw material, through intermediate frequency furnace melting, smelting temperature is 1250 ℃, adopt and in bag, to pour method and add lanthanum cerium compound rare-earth fining agent RE (La+Ce), the mass fraction of each element is, zinc: 25.7%, aluminium: 3.8%, nickel: 0.8%, compound rare-earth: 0.08%, all the other are copper; Then casting ingot-forming, is heated to 850 ℃ of insulation 24h cooling with stove, and epidermis is removed in cutting, then is rolled into 3mm sheet material after ingot is incubated to 30min 850 ℃ time, then is cold-rolled to 2mm, obtains metal level 1; Adopt the mode of numerical controlled machinery processing in the surperficial disposal molding manufacturing cycle unit 2 of metal level 1, its structure as shown in Figure 2, arrange by the square cycle in metal level 1 plane, unit period T=15mm, the diameter phi of circular hole by periodic unit 2
1=12mm, with the disk diameter phi of circular hole concentric
2=10.4mm, the body diameter φ of connection disk and circular hole
3=0.5mm, the thickness d=2mm of circular hole and disk; So far completed the preparation of FSS.
Make the column type structure 6 of filter there is the method for double process shape-memory effect:
FSS, at 850 ℃ of insulation 25min, in the room temperature of quenching machine oil, then is put into 150 ℃ of machine oil and is incubated 25min, finally in 50 ℃ of water, be incubated 15min; After heat treatment, obtain the phase transition temperature of exemplar, during heating, low-temperature phase is to the beginning temperature A of high-temperature phase-transitional
sbe 59 ℃, low-temperature phase is A to the end temp of high-temperature phase-transitional
fit is 71 ℃; The beginning temperature M that when cooling, high-temperature-phase changes to low-temperature phase
sbe 65 ℃, the end temp M that high-temperature-phase changes to low-temperature phase
fbe 51 ℃, determine that its high-temperature-phase temperature is more than 71 ℃, low-temperature phase temperature is below 51 ℃;
For the filter that can realize passband frequency conversion function:
Cylinder is heated to the high-temperature-phase of 80 ℃, cylinder and circular hole are in same plane, and take cylinder and periodic unit 2 is carried out to restrained deformation as rotating shaft rotary wafer, and keep restrained condition cylinder to be cooled to the low-temperature phase of 40 ℃, remove constraint, obtain low-temperature phase shape, as shown in Figure 4 and Figure 5, low-temperature phase is shaped as disk place plane and plane included angle, circular hole place is θ
1=60 ° (by described technical field technical staff's common practise, for guaranteeing θ
1angle, consider when restrained deformation, can to adopt the rebound effect of metal overflow method compensation springback angle, and by carrying out experiment and correction repeatedly, to guarantee the accuracy of angle); Cylinder is heated to the high-temperature-phase of 80 ℃ again, obtains high-temperature-phase shape, as shown in Figure 6 and Figure 7, high-temperature-phase is shaped as the angle theta of disk place plane and circular hole place plane
2=10 °; Utilize the cooling that heats up of 3 pairs of cylinders of temperature controlling instruments, the process 15 times of above-mentioned steps three, makes cylinder possess double process shape-memory effect repeatedly.
For the filter that can realize passband open and close controllable function:
Cylinder is heated to the high-temperature-phase of 80 ℃, cylinder is in the plane at circular hole place, by cylinder mid point, do cylinder at the vertical line of circular hole plane, disk place plane be take the direction of this vertical line as rotating shaft is rotated, and makes disk leave circular hole place plane, periodic unit 2 is carried out to restrained deformation, and keep restrained condition cylinder to be cooled to the low-temperature phase of 40 ℃, and remove constraint, obtain low-temperature phase shape, as shown in Figure 9 and Figure 10, low-temperature phase is shaped as the angle ω of disk place plane and circular hole place plane
1=65 ° (by described technical field technical staff's common practise, for guaranteeing ω
1angle, consider when restrained deformation, can to adopt the rebound effect of metal excessive bending method compensation springback angle, and by carrying out experiment and correction repeatedly, to guarantee the accuracy of angle); Cylinder is heated to the high-temperature-phase of 80 ℃ again, obtains high-temperature-phase shape, as shown in Figure 11 and Figure 12, high-temperature-phase is shaped as the angle ω of disk place plane and circular hole place plane
2=8 °; Utilize the cooling that heats up of 3 pairs of cylinders of temperature controlling instruments, the process 15 times of above-mentioned steps three, makes cylinder possess double process shape-memory effect repeatedly.
To realizing the filter of frequency conversion function, carry out measuring transmission loss, as shown in Figure 8, when cylinder temperature is during higher than 80 ℃,, when high-temperature-phase, periodic unit 2 is the angle theta of disk place plane and circular hole place plane to result
2the shape of=10 °, filter passband center frequency point is 8.6GHz, transmitance is-0.11dB; When temperature controlling instruments 3 discharge cold air make cylinder temperature lower than 40 ℃,, when low-temperature phase, periodic unit 2 changes the angle theta of disk place plane and circular hole place plane into
1the shape of=60 °, filter passband center frequency point is 13.7GHz, transmitance is-0.14dB; When temperature controlling instruments 3 discharge hot gas make cylinder temperature again higher than 80 ℃, in high-temperature-phase state, periodic unit 2 changes the angle theta of disk place plane and circular hole place plane again into
2the shape of=10 °, filter passband center frequency point is 8.6GHz, transmitance is-0.11dB.By changing the temperature of cylinder, realize the frequency conversion function of controlling this filter passband.
To realizing the filter of the controlled energy of passband open and close merit, carry out measuring transmission loss, as shown in figure 13, when cylinder temperature is during higher than 80 ℃,, when high-temperature-phase, periodic unit 2 is the angle ω of disk place plane and circular hole place plane to result
2the shape of=8 °, filter passband is for opening state, and center frequency point is 8.6GHz, and transmitance is-0.35dB to have good filtering characteristic; When temperature controlling instruments 3 discharge cold air make cylinder temperature lower than 40 ℃,, when low-temperature phase, periodic unit 2 changes the angle ω of disk place plane and circular hole place plane into
1the shape of=65 °, this filter passband is off status, and filter can be realized the electromagnetic wave shielding characteristic of wide-band, and within the scope of 2GHz～16GHz, transmitance is all lower than-15dB; When temperature controlling instruments 3 discharge hot gas make cylinder temperature again higher than 80 ℃, again in high-temperature-phase state, periodic unit 2 changes the angle ω of disk place plane and circular hole place plane again into
2the shape of=8 °, this filter passband is for opening state, and center frequency point is 8.6GHz, and transmitance is-0.35dB again to realize filter function.By changing the temperature of cylinder, can realize the function of controlling these filter passband open and close, realize the function that electromagnetic frequency is selected or wide-band shields.
Claims (8)
1. the frequency-selective surfaces filter with memory function, is characterized in that, comprising: frequency-selective surfaces and temperature controlling instruments (3);
Described frequency-selective surfaces comprises the periodic unit (2) of metal level (1) and the upper periodic arrangement of metal level (1);
Described periodic unit (2) is comprised of through hole (4), sheet type structure (5) and column type structure (6), described through hole (4) is located on metal level (1), the two ends of described column type structure (6) are fixedly connected with the inwall of through hole (4) with the outer wall of sheet type structure (5) respectively, described column type structure (6) adopts marmem to make, column type structure (6) has double process shape-memory effect, and can change by double process shape-memory effect the relative position relation of sheet type structure (5) and through hole (4);
Described temperature controlling instruments (3) is controlled the temperature of column type structure (6), and does not affect the effect of microwave to frequency-selective surfaces.
2. the frequency-selective surfaces filter with memory function according to claim 1, is characterized in that, the material of described metal level (1) and sheet type structure (5) is marmem.
3. the frequency-selective surfaces filter with memory function according to claim 1 and 2, is characterized in that, described marmem is copper zinc-aluminium nickel alloy, Ti-Ni alloy, Batterium, Jackson's alloy or FeMnSi alloy.
4. the frequency-selective surfaces filter with memory function according to claim 1 and 2, is characterized in that, described temperature controlling instruments (3) is arranged on the side of frequency-selective surfaces.
5. the frequency-selective surfaces filter with memory function according to claim 1 and 2, is characterized in that, described through hole (4) and sheet type structure (5) are similar figures.
6. the frequency-selective surfaces filter with memory function according to claim 5, is characterized in that, described through hole (4) is circular hole, and described type structure (5) is disk.
7. the frequency-selective surfaces filter with memory function according to claim 1 and 2, it is characterized in that, the double process shape-memory effect that described column type structure (6) has makes sheet type structure (5) take column type structure (6) to be rotated as rotating shaft, and the angle of sheet type structure (5) place plane and through hole (4) place plane can be 60 ° and 10 °.
8. the frequency-selective surfaces filter with memory function according to claim 1 and 2, it is characterized in that, the double process shape-memory effect that described column type structure (6) has makes sheet type structure (5) away from through hole (4) place plane, and the angle of sheet type structure (5) place plane and through hole (4) place plane can be 65 ° and 8 °.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107742768A (en) * | 2017-09-30 | 2018-02-27 | 惠州市攸特电子有限公司 | A kind of wave filter pulls out housing apparatus and its wave filter drawing force detection system |
| CN111910154A (en) * | 2020-07-29 | 2020-11-10 | 华中科技大学 | Dynamic frequency selection surface structure and preparation method thereof |
| CN113346206A (en) * | 2021-06-28 | 2021-09-03 | 云南大学 | Terahertz band-pass filter with adjustable bandwidth |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103094647A (en) * | 2013-01-30 | 2013-05-08 | 中国科学院长春光学精密机械与物理研究所 | Double-layer frequency selection surface wave filter with frequency conversation function |
| CN103346366A (en) * | 2013-06-24 | 2013-10-09 | 中国科学院长春光学精密机械与物理研究所 | Spatial filter prepared through heating-induced phase transition material |
| CN103346367A (en) * | 2013-06-24 | 2013-10-09 | 中国科学院长春光学精密机械与物理研究所 | Spatial filter with temperature control transmission band switch |
-
2013
- 2013-11-26 CN CN201310615575.XA patent/CN103594763B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103094647A (en) * | 2013-01-30 | 2013-05-08 | 中国科学院长春光学精密机械与物理研究所 | Double-layer frequency selection surface wave filter with frequency conversation function |
| CN103346366A (en) * | 2013-06-24 | 2013-10-09 | 中国科学院长春光学精密机械与物理研究所 | Spatial filter prepared through heating-induced phase transition material |
| CN103346367A (en) * | 2013-06-24 | 2013-10-09 | 中国科学院长春光学精密机械与物理研究所 | Spatial filter with temperature control transmission band switch |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107742768A (en) * | 2017-09-30 | 2018-02-27 | 惠州市攸特电子有限公司 | A kind of wave filter pulls out housing apparatus and its wave filter drawing force detection system |
| CN107742768B (en) * | 2017-09-30 | 2022-08-09 | 惠州攸特电子股份有限公司 | Shell pulling device for filter and filter pulling force detection system thereof |
| CN111910154A (en) * | 2020-07-29 | 2020-11-10 | 华中科技大学 | Dynamic frequency selection surface structure and preparation method thereof |
| CN111910154B (en) * | 2020-07-29 | 2022-08-02 | 华中科技大学 | Dynamic frequency selection surface structure and preparation method thereof |
| CN113346206A (en) * | 2021-06-28 | 2021-09-03 | 云南大学 | Terahertz band-pass filter with adjustable bandwidth |
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| CN103594763B (en) | 2015-09-30 |
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