CN105609940A - Millimeter wave radiometer integrated with conjugate linear gradual-change slot antenna - Google Patents
Millimeter wave radiometer integrated with conjugate linear gradual-change slot antenna Download PDFInfo
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- CN105609940A CN105609940A CN201510759705.6A CN201510759705A CN105609940A CN 105609940 A CN105609940 A CN 105609940A CN 201510759705 A CN201510759705 A CN 201510759705A CN 105609940 A CN105609940 A CN 105609940A
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Abstract
The invention provides a millimeter wave radiometer integrated with a conjugate linear gradual-change slot antenna. The radiometer comprises a metal cavity, and a millimeter wave microstrip circuit and a signal processing circuit arranged in the metal cavity, the millimeter wave microstrip circuit is connected with the conjugate linear gradual-change slot antenna, the conjugate linear gradual-change slot antenna comprises a dielectric substrate and metal layers A and B, the two sides of the dielectric substrate are coated with the metal layers A and B respectively, and the metal layers A and B are the same in structure and symmetrical by taking the central line of the dielectric substrate as the center, and form a conjugate symmetrical structure. According to the invention, the conjugate linear gradual-change slot antenna of the planar structure is integrated with the radiometer, the size of an imaging system is reduced, and the imaging system is higher in integrated level and portability; the sensitivity of radiation detection can be improved on the basis that the size of the RF reception front end of radiation is reduced; and when the radiometer is applied to the imaging system in which an 8-millimeter wave radiometer forms a multi-element reception array, the resolution and portability of the imaging system can be improved.
Description
Technical field
The present invention relates to the technical field that passive millimeter wave is surveyed, more specifically, has been integrated altogetherThe millimeter wave radiometer of yoke rectigradation slot antenna.
Background technology
Not emitting electromagnetic wave initiatively of passive millimeter wave imaging, but rely on the atmospheric propagation window of millimeter wave,Form image by passive detection from the naturally occurring heat radiation energy of target field scape. By surveyingThe thermal radiation temperature difference of target object and background, passive millimeter wave imaging system can be round-the-clock, completeIt time work. Passive millimeter wave imaging system can be used under the poor condition of visibility, even penetratesClothing, this ability makes passive millimeter wave imaging technique obtain extensively in many civilian and militaries fieldGeneral application, for example atmospheric research, navigation and supervision, All Weather Landing guiding, oil spilling detect, can't harmSafety inspection, collision prevention of vehicle etc.
The conventional system of passive millimeter wave focal plane imaging system is focal plane array image-forming system, this bodyThe radiometer one dimension of system is placed on the focal plane of focusing anteena, and prior art radiometer reception antennaConventionally use electromagnetic horn. But there are the following problems for electromagnetic horn:
1) gain of electromagnetic horn is less, in order to improve gain, must be of a size of cost to sacrifice,That the volume of imaging system can only be done is very large, but large-sized imaging system be cannot meet portableRequire;
2) due to the restriction of the two-dimentional physical size of the focal plane of focusing anteena, under this size, can arrangeElectromagnetic horn negligible amounts, if electromagnetic horn lazy weight cannot obtain high-resolution milliMetric wave image;
3) electromagnetic horn must be changed with radiometer and is connected by Waveguide-microbelt, thereby volume increasesAnd loss strengthens.
Therefore,, in order to meet the requirement such as gain, volume of imaging system, those skilled in the art urgentlyWork out a kind of radiometer with new antenna that can address the above problem.
Summary of the invention
In order to overcome, the existing gain of the radiometer with electromagnetic horn is little, electromagnetic horn size causes greatly imagingThe defects such as system bulk is large, the invention provides the millimeter wave of conjugate lines tapered slot antenna integratedRadiometer, the sensitivity that reduced electromagnetic wave loss, has improved radiometer has reduced whole one-tenth simultaneouslyThe size of picture system, imaging effect is better.
For achieving the above object, the invention discloses the millimeter of conjugate lines tapered slot antenna integratedWave radiation meter, radiometer comprises metallic cavity and is located at millimeter wave microstrip circuit and the letter in metallic cavityNumber treatment circuit, millimeter wave microstrip circuit connects conjugate lines tapered slot antenna, conjugate lines gradual changeSlot antenna comprises medium substrate and is plated on the metal layer A on medium substrate two sides, B, metal layer A, BStructure is identical and about medium substrate center line symmetry, metal layer A, metal level B form conjugation symmetryStructure.
The present invention innovates the antenna that has adopted conjugation symmetrical structure, has the effect that improves the beamwidth of antenna,There is high-gain, Low sidelobe level, low return loss, low cost, be easy to processing, lightweight, chiThe very little compact technical characterstic that waits.
Further, medium substrate is rectangular, and metal layer A comprises that the right angled triangle of one processing pastesSheet, rectangle paster and bar shaped paster, rectangle paster is placed in bottom, medium substrate surface, right angle threeDihedral paster is placed in rectangle paster upside and a right-angle side is connected with rectangle paster, this right-angle sideLength is less than rectangle patch length, and bar shaped paster one end is also connected with rectangle paster upside.
Further, rectangle patch length is identical with medium substrate width, right angled triangle pasterAnother right-angle side and rectangle paster one side edge-justified calibrations.
Further, along seeing perpendicular to the direction of substrate, the right angle trigonometry of metal layer A, metal level BShape paster hypotenuse intersects the right-angle side that forms angle, is connected with rectangle paster and exists overlapping.
By regulating the size of size/overlapping width of this angle, reasonably select this corner dimension/The size of overlapping width can reduce the loss that impedance mismatch brings, and can broadening bandwidth of operation.
Further, the shape of bar shaped paster by multiple squares along oblique stacking forming.
Further, have two exhausting holes and be symmetrical arranged in metal layer A, an exhausting hole is from right angle threeDihedral paster extends to rectangle paster, and another exhausting hole extends to rectangle paster from bar shaped paster,Through hole place straight line on through hole place straight line and rectangle paster on right angled triangle paster formsAngle; Perpendicular to medium substrate direction, metal layer A, the through hole that B is corresponding run through medium substrate, mutualBe conducted.
Further, on another right-angle side of right angled triangle paster, have at least one rectangular aperture.
Rectangular aperture makes the radiation field of conjugate lines tapered slot antenna more concentrated, and actinal surface field moreEvenly, the gain of antenna is further enhanced, and has reduced the minor level of antenna.
Further, millimeter wave microstrip circuit is to picking out feed line, conjugate lines tapered slot antennaMetal layer A is to picking out and the center feed of metal layer A one processing and the metal of center feed sideLayer, center feed and feed line welding, the metal level welding of metallic cavity and side.
The present invention innovate by integrated to conjugate lines tapered slot antenna and radiometer, connect by minimizingThe mode of medium reaches the object that reduces electromagnetic wave loss, the sensitivity that has improved radiometer, Jin ErtiThe high imaging effect of imaging system. Above-mentioned set-up mode has ensured center feed joint and feed lineJoint is nearest, has saved extra connection, has reduced electromagnetic wave loss.
Further, between center feed and the metal level of side, have gap.
Beneficial effect of the present invention is: the present invention by the conjugate lines tapered slot antenna of planar structure withRadiometer is integrated, has reduced on the whole the size of imaging system, and the integrated level of imaging system is higher, justThe property taken is better. Conjugate lines tapered slot antenna of the present invention realizes focal plane feed and radiometer receivesBeing staggered of machine array, increase quantity and the density of its two-dimensional arrangements, makes focal plane imaging systemIntegrated level and spatial resolution are higher. By the special structure of conjugate lines tapered slot antenna of the present invention,Reach the effect of the bandwidth of operation that improves the gain of antenna, the sidelobe level that reduces antenna and increase antennaReally.
Conjugation tapered slot antenna of the present invention has than the electromagnetic horn relative narrower of identical boreLobe width, higher gain and lower secondary lobe, the millimeter of integrated conjugate lines tapered slot antennaThe sensitivity of wave radiation meter receiver is higher, is assembled in passive millimeter wave focal plane imaging system SceneThe resolution ratio of imaging is better.
Brief description of the drawings
Fig. 1 is the exploded view of conjugate lines tapered slot antenna.
Fig. 2 is the schematic perspective view of conjugate lines tapered slot antenna.
Fig. 3 is that the master of conjugate lines tapered slot antenna looks schematic diagram.
Fig. 4 is the perspective diagram of conjugate lines tapered slot antenna.
Fig. 5 is the millimeter wave radiometer of integrated conjugate lines tapered slot antenna in embodiment mono-Front schematic view.
Fig. 6 is the millimeter wave radiometer of integrated conjugate lines tapered slot antenna in embodiment mono-Reverse side schematic diagram.
Fig. 7 is the millimeter wave radiometer of integrated conjugate lines tapered slot antenna in embodiment mono-Perspective diagram.
Fig. 8 is the millimeter wave radiometer of integrated conjugate lines tapered slot antenna in embodiment bis-Perspective diagram.
In figure,
1, metal layer A; 10, right angled triangle paster; 11, rectangle paster; 12, bar shaped is pastedSheet; 13, rectangular aperture; 14, through hole; 15, center feed; 2, medium substrate; 3, metal levelB; 4, metallic cavity; 5, gap.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the present invention are carried out to detailed explanation and explanation.
Embodiment mono-:
As shown in Fig. 5-8, millimeter wave radiometer of the present invention comprises the millimeter of being located in metallic cavity 4Ripple microstrip circuit and conjugate lines tapered slot antenna, the main circuit of radiometer is millimeter wave microstrip circuitAnd signal processing circuit, signal processing circuit connects millimeter wave microstrip circuit, and millimeter wave microstrip circuit isConventional circuit in radiometer, those skilled in the art are reasonable selection as required.
Conjugate lines tapered slot antenna as Figure 1-4, the metal level of medium substrate 2 both sidesA1 and metal level B3 form conjugation symmetrical structure.
Tapered slot antenna (Taperedslotantenna, TSA) is at its medium substrate 2 oneOn the metal level of side, utilize photoetching technique to etch a gradual change gap of opening gradually, this gradual change gapOne end for feed, the other end is gone out electromagenetic wave radiation. But, in existing research, thisThe gradual change of a little tapered slot antennas is slotted all in the same side of antenna medium substrates 2, and the feedback usingElectricity mode only has the feeding classification of fluting gap to microstrip line conventionally, and this makes the band of tapered slot antennaWide limited, and at millimeter wave or more on high band, the loss aggravation of antenna. Employing conjugated structureGradual change gap is the bandwidth of broadening antenna to a great extent, and has shown good cross polarizationPerformance. Conjugation tapered slot antenna (AntipodalTaperedSlotAntenna) is by antennaStructure Central Plains is originally positioned at separated Jie of left and right two parts of the gradual change fluting of medium substrate 2 one sidesOn the two sides of matter substrate 2, form conjugation symmetrical structure. The conjugate lines gradual change seam of the present invention's designThe wave band of gap antenna is 32-40GHz, and in the present embodiment, medium substrate 2 is 20milRT Duroid6002 sheet material, the relative dielectric constant of this substrate is 2.94, dielectric loss angle tangent is0.0012. Select RT this medium substrate 2 of Duroid6002, be due to these medium substrate 2 lossesLittle, and dielectric constant is relatively high, can dwindle to a certain extent the physical size of antenna.
But in the correlative study of conjugation tapered slot antenna, the feed part of antenna is used conventionallyStill directly carry out feed with microstrip line or co-planar waveguide (CoplanarWaveguide, CPW)Mode, at millimeter wave or more the loss on high band is large and antenna performance is relatively poor, enter simultaneouslyThe research that one step is dwindled antenna size is difficult to break through.
Conjugate lines tapered slot antenna (AntipodalLinearlyTapered in the present inventionSlotAntenna, ALTSA) adopt a kind of planar broad band transition feeding classification, be ground connection altogetherGround roll is led (GroundedCoplanarWaveguide, GCPW) to substrate integration wave-guideThe feeding classification of (SubstrateIntegratedWaveguide, SIW) transition, simultaneously antennaRadiating element designed brand-new structure. As shown in Figure 1, 2, millimeter wave microstrip circuit connects altogetherYoke rectigradation slot antenna, conjugate lines tapered slot antenna comprises medium substrate 2 and is plated on mediumThe metal layer A 1 of substrate 2 both sides, metal level B3, metal layer A 1, metal level B3 structure identical andAbout medium substrate 2 center line symmetries, metal layer A 1, metal level B3 form conjugation symmetrical structure.As shown in Figure 3, medium substrate 2 is rectangle, and metal layer A 1 comprises the right angle trigonometry of one processingShape paster 10, rectangle paster 11 and bar shaped paster 12, rectangle paster 11 is placed in medium substrate2 surperficial bottoms, right angled triangle paster 10 be placed in rectangle paster 11 upsides and right-angle side withRectangle paster 11 is connected, and this right-angle side length is less than rectangle paster 11 length, bar shaped paster12 one end are connected with rectangle paster 11 upsides, and the shape of bar shaped paster 12 is by multiple square edgesOblique stacking forming, rectangle paster 11 length are identical with medium substrate 2 width, right angled triangleAnother right-angle side of paster 10 and rectangle paster 11 justified margins. As shown in Figure 4, along verticalDirection in substrate is seen, the right angled triangle paster 10 hypotenuses formation of metal layer A 1, metal level B3Angle, the right-angle side being connected with rectangle paster exist overlapping, by regulating this angle and overlapping widthSize, can reduce loss that impedance mismatch brings can broadening bandwidth of operation. Metal levelOn A1, have two exhausting holes 14 and be symmetrical arranged, an exhausting hole 14 prolongs from right angled triangle paster 10Extend rectangle paster 11, another exhausting hole 14 extends to rectangle paster 11 from bar shaped paster 12,Through hole 14 is circular, square or other shapes, and two exhausting hole 14 place straight lines form angle, thisTwo exhausting holes 14, have formed angle along antenna gradual change gap, perpendicular to medium substrate direction, goldBelong to a layer through hole corresponding to A, B and run through medium substrate, conducting mutually, such structure makes antennaRadiation field becomes the more even of concentrated and actinal surface field distribution, and 3dB lobe width narrows, and gain also has aobviousWork increases, and particularly at HFS, above-mentioned technique effect is more obvious, and, the secondary lobe of antennaLevel especially E face has remarkable reduction. On another right-angle side of right angled triangle paster 10, haveRectangular aperture 13. By rectangular aperture 13 is set, make the radiation field of antenna more concentrated, actinal surfaceField is more even, and the gain of antenna is further enhanced, and has further reduced the minor level of antenna,In the present embodiment, the number of rectangular aperture 13 is 6.
Based on the brand new of high performance feeding classification and antenna radiation unit, conjugation of the present invention is straightLine tapered slot antenna is compared traditional tapered slot antenna of the same type, has shown excellent in millimere-wave bandDifferent antenna performance, mainly comprises: high-gain, Low sidelobe level, low return loss, low cost,Be easy to the especially narrow and working frequency range of processing, lightweight, compact dimensions, E ground roll beam width wide etc. AltogetherThe size of yoke rectigradation slot antenna can be selected sizes, such as, 34.3mm × 15mm,33.9mm×15mm。
Conjugate lines tapered slot antenna and common rectigradation slot antenna are structurally maximumDifference comprises: 1. the rectigradation slotted metal of conjugate lines tapered slot antenna is to pass through medium substrate2 bilevel gradual change metal level conjugation are symmetrically formed; 2. conjugate lines tapered slot antenna is upper and lowerThe subtended angle that two-layer gradual change metal forms has the intersection that a width is w1; 3. the integrated ripple of substrateLead and be by 2 rectangle pasters 11 of metal layer A, B and run through rectangle paster 11 and mediumTwo exhausting hole compositions of substrate 2, the through hole 14 of substrate integration wave-guide has extended to conjugate lines gradual changeThe radiating element of slot antenna also opens gradually, and through hole 14 1 sides have increased concentric with it simultaneouslySquare paster, the stacking bar shaped paster 12 that formed of square paster; 4. conjugate lines gradual change gapThe gradual change metal level top etching of the radiating element of antenna the rectangular aperture 13 of preiodic type; 5. conjugationRectigradation slot antenna has adopted the planar broad band transition of ground connection co-planar waveguide to substrate integration wave-guideFeeding classification. In the structural design of antenna radiation unit, by extending through hole 14 and the sky of SIWThe structural design of line top preiodic type fluting, makes gain raising 1.92dB, the 3dB lobe of antenna wide12 ° of degree compressions, secondary lobe reduce 1.7dB, back lobe level reduces 8dB, simultaneously broadening bandwidth.
It should be noted that, the radiating element of foregoing and gradual change metal level are all that right angled triangle pastesSheet 10.
In full working frequency range (32GHz-38GHz), the test of conjugate lines tapered slot antenna and imitativeTrue result is basically identical, the input return loss of conjugate lines tapered slot antenna can meet lower than-13dB, E face secondary lobe is lower than-16dB. Based on the performance indications of conjugate lines tapered slot antenna excellence,The conjugate lines tapered slot antenna of the present invention's design can be applied to various middle low-power wireless systems,Applied widely at microwave and millimeter wave frequency band.
The present invention innovate by integrated to conjugate lines tapered slot antenna and radiometer, integrated in order to improveEffect, on the basis of traditional radiometer, the present invention removes the rectangle of radiometer input with innovatingTransition structure between waveguide mouth and millimeter wave microstrip circuit, leaves millimeter wave microstrip circuit part, andRetain the peripheral package metals cavity of millimeter wave microstrip circuit 4 structures constant, then will be from millimeter wave microstrip electricityThe center feed 15 of ground connection co-planar waveguide in the feed line that pass goes out and conjugation rectigradation slot antennaWeld, simultaneously by the metal level of the center feed side of antenna and radiometer microstrip circuit both sidesMetallic cavity 4 is welded, thereby realizes the integrated of conjugate lines tapered slot antenna and radiometer. SpecificallyGround, as shown in Figure 7, in the present invention, millimeter wave microstrip circuit is to picking out feed line, and conjugate lines is graduallyBecome slot antenna metal layer A 1 to pick out with the center feed 15 of metal layer A 1 one processing and inThe metal level of heart feeder line 15 sides, the bonding jumper that center feed 15 stretches out downwards for metal layer A 1,Center feed 15 and feed line welding, metallic cavity 4 with and the metal level weldering of center feed 15 sidesConnect, between center feed 15 and the metal level of side, have gap 5. Through hole 14 is downward along gap 5Oblique line extends, with the direction of an electric field that makes substrate integration wave-guide inside all the time perpendicular to the madial wall of through hole.
Because medium substrate and the millimeter wave microstrip circuit of millimeter wave microstrip circuit in radiometer seal outwardThere is difference in height in the metallic cavity 4 of dress, before therefore radiometer and conjugate lines tapered slot antenna are assembled,Need to process one for welding in the front end polishing of millimeter wave microstrip circuit both sides metallic cavity 4The plane of conjugate lines tapered slot antenna, has ensured that feed line and the conjugation of millimeter wave microstrip circuit is straightThe center feed 15 of line tapered slot antenna welds face-to-face, particularly, and conjugate lines gradual change gapDown, the millimeter wave microstrip circuit face of radiometer, has avoided causing electromagnetic wave to damage upward to antenna faceThe phenomenon of consumption occurs, therefore, and a surface, side end face of radiometer welding conjugate lines tapered slot antennaSmoothly.
Through test and emulation, the millimeter wave radiometer of integrated conjugate lines tapered slot antenna than with7.5 ° of high 1.9dB, the 3dB lobe width compressions that gain of the radiometer with electromagnetic horn of size, pairThe low 12dB of lobe level, and on focal plane after defocusing secondary lobe can there is not drastic change. In addition, integratedThe millimeter wave radiometer sensitivity of conjugate lines tapered slot antenna is higher, is subject to the variation shadow of surrounding environmentRing less.
Embodiment bis-:
Integrated millimeter wave radiometer and the embodiment of conjugate lines tapered slot antenna of embodiment bis-One is basic identical, and as shown in Figure 8, its difference is between center feed 15 and the metal level of sideShape/number difference of the shape in gap 5 and arrays of openings, through hole 14 extends simultaneously downward vertically.
Under the enlightenment of technical solution of the present invention, those skilled in the art can reasonably arrange as requiredThe form of above-mentioned gap 5 and through hole 14, and be not limited to above-described embodiment.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, allAny amendment of doing in flesh and blood of the present invention, be equal to and replace and simple modifications etc., all should be included inWithin protection scope of the present invention.
Claims (9)
1. the integrated millimeter wave radiometer of conjugate lines tapered slot antenna, radiometer comprises metalCavity (4) and be located at millimeter wave microstrip circuit and the signal processing circuit in metallic cavity, its featureBe: millimeter wave microstrip circuit connects conjugate lines tapered slot antenna, sky, conjugate lines gradual change gapLine comprises medium substrate (2) and is plated on the metal layer A on medium substrate two sides, B (1,3), metalLayer A, B structure is identical and about medium substrate center line symmetry, metal layer A, metal level B formConjugation symmetrical structure.
2. the integrated millimeter amplitude of conjugate lines tapered slot antenna according to claim 1Penetrate meter, it is characterized in that: medium substrate is rectangular, metal layer A comprises the right angle trigonometry of one processingShape paster (10), rectangle paster (11) and bar shaped paster (12), rectangle paster is placed in mediumSubstrate surface bottom, right angled triangle paster is placed in rectangle paster upside and a right-angle side and rectangularShape paster is connected, and this right-angle side length is less than rectangle patch length, and bar shaped paster one end is also with rectangularShape paster upside is connected.
3. the integrated millimeter amplitude of conjugate lines tapered slot antenna according to claim 2Penetrate meter, it is characterized in that: rectangle patch length is identical with medium substrate width, right angled triangle pastesAnother right-angle side of sheet and rectangle paster one side edge-justified calibrations.
4. the integrated millimeter amplitude of conjugate lines tapered slot antenna according to claim 3Penetrate meter, it is characterized in that: along seeing perpendicular to the direction of substrate, the right angle of metal layer A, metal level BTriangle patch hypotenuse intersects the right-angle side that forms angle, is connected with rectangle paster and exists overlapping.
5. the integrated millimeter amplitude of conjugate lines tapered slot antenna according to claim 3Penetrate meter, it is characterized in that: the shape of bar shaped paster by multiple squares along oblique stacking forming.
6. according to the millimeter of the integrated conjugate lines tapered slot antenna described in claim 4 or 5Wave radiation meter, is characterized in that: in metal layer A, have two exhausting holes (14) and be symmetrical arranged oneExhausting hole extends to rectangle paster from right angled triangle paster, and another exhausting hole extends from bar shaped pasterTo rectangle paster, the through hole on through hole place straight line and rectangle paster on right angled triangle pasterPlace straight line forms angle; Perpendicular to medium substrate direction, metal layer A, the through hole that B is corresponding run throughMedium substrate, conducting mutually.
7. the integrated millimeter amplitude of conjugate lines tapered slot antenna according to claim 6Penetrate meter, it is characterized in that: on another right-angle side of right angled triangle paster, have at least one rectangleGap (13).
8. the integrated millimeter amplitude of conjugate lines tapered slot antenna according to claim 7Penetrate meter, it is characterized in that: millimeter wave microstrip circuit is to picking out feed line, conjugate lines gradual change gapAntenna metal layer A is to picking out center feed (15) and the center feed processed with metal layer A oneThe metal level of side, center feed and feed line welding, the metal level welding of metallic cavity and side.
9. the integrated millimeter amplitude of conjugate lines tapered slot antenna according to claim 8Penetrate meter, it is characterized in that: between center feed and the metal level of side, have gap (5).
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| CN201510759705.6A CN105609940A (en) | 2015-09-10 | 2015-11-09 | Millimeter wave radiometer integrated with conjugate linear gradual-change slot antenna |
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| CN106229631A (en) * | 2016-07-19 | 2016-12-14 | 东南大学 | A kind of broadband millimeter-wave antenna |
| CN107634345A (en) * | 2017-10-24 | 2018-01-26 | 东南大学 | A kind of high-gain gradual change slot array antenna suitable for 5G millimetre-wave attenuators |
| CN107819201A (en) * | 2017-10-24 | 2018-03-20 | 东南大学 | A kind of compact gradual change slot array antenna suitable for 5G millimetre-wave attenuators |
| CN107968261A (en) * | 2016-10-25 | 2018-04-27 | 电子科技大学 | Multiband antenna based on planar monopole and substrate integration wave-guide fluting |
| CN110994168A (en) * | 2019-12-27 | 2020-04-10 | 维沃移动通信有限公司 | Antenna module and electronic equipment |
| CN111052509A (en) * | 2017-08-30 | 2020-04-21 | 株式会社村田制作所 | Antenna module |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229631A (en) * | 2016-07-19 | 2016-12-14 | 东南大学 | A kind of broadband millimeter-wave antenna |
| CN106229631B (en) * | 2016-07-19 | 2018-08-28 | 东南大学 | A kind of broadband millimeter-wave antenna |
| CN107968261A (en) * | 2016-10-25 | 2018-04-27 | 电子科技大学 | Multiband antenna based on planar monopole and substrate integration wave-guide fluting |
| CN111052509A (en) * | 2017-08-30 | 2020-04-21 | 株式会社村田制作所 | Antenna module |
| CN111052509B (en) * | 2017-08-30 | 2022-03-29 | 株式会社村田制作所 | Antenna module |
| CN107634345A (en) * | 2017-10-24 | 2018-01-26 | 东南大学 | A kind of high-gain gradual change slot array antenna suitable for 5G millimetre-wave attenuators |
| CN107819201A (en) * | 2017-10-24 | 2018-03-20 | 东南大学 | A kind of compact gradual change slot array antenna suitable for 5G millimetre-wave attenuators |
| CN107634345B (en) * | 2017-10-24 | 2019-09-10 | 东南大学 | A kind of high-gain gradual change slot array antenna suitable for 5G millimetre-wave attenuator |
| CN107819201B (en) * | 2017-10-24 | 2019-09-10 | 东南大学 | A kind of compact gradual change slot array antenna suitable for 5G millimetre-wave attenuator |
| CN110994168A (en) * | 2019-12-27 | 2020-04-10 | 维沃移动通信有限公司 | Antenna module and electronic equipment |
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Application publication date: 20160525 |