CN105428804B - A kind of broad beam circular polarisation Y shape-H-shaped slot miniaturization circle paster antenna using characteristics of conformal electromagnetic bandgap structure - Google Patents
A kind of broad beam circular polarisation Y shape-H-shaped slot miniaturization circle paster antenna using characteristics of conformal electromagnetic bandgap structure Download PDFInfo
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- CN105428804B CN105428804B CN201510974175.7A CN201510974175A CN105428804B CN 105428804 B CN105428804 B CN 105428804B CN 201510974175 A CN201510974175 A CN 201510974175A CN 105428804 B CN105428804 B CN 105428804B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
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Abstract
The invention discloses a kind of broad beam circular polarisation Y shape H-shaped slot miniaturization circle paster antennas using characteristics of conformal electromagnetic bandgap structure, to realize the target of paster antenna miniaturization, broadening antenna beamwidth, meet the application demands such as satellite navigation communication；Antenna uses coaxial feed, including radiation patch, parasitic patch, metal floor and characteristics of conformal electromagnetic bandgap structure, wherein radiation patch has Y shape H-shaped slot structure, positioned at layer dielectric substrate, slot structure is made of 8 Y shape slots and 16 H-shaped slots, and parasitic patch is located at upper layer medium substrate.Characteristics of conformal electromagnetic bandgap structure with four arm L-shaped turn back lines is disposed vertically on metal floor, is surround around antenna.The present invention will minimize circle paster antenna and be combined with characteristics of conformal electromagnetic bandgap structure, have the advantages that antenna size is small, wave beam is wide.
Description
Technical field
The present invention relates to a kind of broad beam circular polarisation Y shape-H-shaped slot miniaturization circles using characteristics of conformal electromagnetic bandgap structure
The technical field of paster antenna, more particularly to a kind of paster antenna using Y shape slot structure and H-shaped slot structure.
Background technology
With the rapid development of the satellite navigation communication technology, various communication products also go out like the mushrooms after rain with technology
It is existing.For being used for emitting and receiving the antenna of signal in communication products, it is even more directly to determine to have excellent performance with size
The suitable application area and economic benefits of communication products.
Antenna is a kind of element for emitting or receiving electromagnetic wave, generally can be from working frequency, antenna pattern
The parameters such as (Radiation Pattern), reflectance factor (Return Loss) and antenna gain (Antenna Gain) are known
The characteristic of antenna.Antenna used in wireless product now must have the characteristics that excellent performance, size are small and at low cost, ability
Obtain accepting extensively and affirmative for market.Paster antenna have section is low, light-weight, easy processing, easily conformal installation and can be with
The advantages that other circuit elements are produced on same circuit.Since arbitrary polarized wave can all be received by circular polarized antenna, while entelechy
Changing ripple can also be received by arbitrary poliarizing antenna so that circular polarized antenna has obtained extensively in fields such as electronic interferences, satellite communications
Using.The patch size of conventional patch antenna is about half wavelength, and beam angle is not wide enough, therefore how to realize double circles
Polarization reduces the important research direction of antenna size and broadening wave beam as antenna research and development.Electromagnetic bandgap structure is a kind of
Artificial periodic structure, there are apparent frequency forbidden band characteristics, can control electromagnetic wave propagation, reach the effect of preferable magnetic wall
Fruit, therefore cause the common concern of people.
Find that Tzung-Wern Chiou etc. propose a kind of compact double-circle polarization paster antenna according to current retrieval,
Realize that miniaturization and two H-type aperture-coupleds realize double-circle polarization using two rectangular ring patches.YANG Jie etc.
A kind of wide beam circular polarized antenna with equivalent electric wall construction is proposed, using circular patch structure and 2 feed structure realities
Showed circular polarisation, and all around around stereoscopic electric wall construction effectively extend beam angle.Li Yang etc. propose a kind of tool
There is the spiral shape electromagnetic bandgap structure of through-hole structure, this electromagnetic bandgap structure has small size performance and good forbidden band spy
Property is placed horizontally at the mutual coupling significantly reduced between antenna array element between antenna element.Bell etc. uses electro-magnetic bandgap
Structure replaces λ/4 of Archimedian spiral antenna to carry on the back chamber, compresses antenna thickness, while gain and bandwidth are basically unchanged.Yang Shao
China etc. by electromagnetic bandgap structure be applied to small circularly-polarizedanti-metal paster antenna, by add sawtooth improve antenna radiation pattern before and after
Than.
The content of the invention
The technical problems to be solved by the invention are：There is provided it is a kind of using characteristics of conformal electromagnetic bandgap structure have Y shape
The circular patch antenna of slot structure and H-shaped slot structure so that antenna meets miniaturization, circular polarisation and broad beam characteristic.
The technical solution adopted by the present invention is：A kind of broad beam circular polarisation circular patch of characteristics of conformal electromagnetic bandgap structure
Antenna, structure are realized as follows：
First medium substrate has the first surface and second surface being mutually parallel；
Radiation patch, positioned at the second surface center of first medium substrate, the first medium substrate and metal patch are equal
For circular configuration, metal patch has Y shape slot structure and H-shaped slot structure；
Second medium substrate, is placed in parallel in first medium surface, first medium substrate and second medium substrate it
Between be foam support；
Parasitic patch, positioned at the 3rd centre of surface of second medium substrate, the second medium substrate and parasitic patch are equal
For circle；
3rd medium substrate has the 4th surface and the 5th surface of characteristics of conformal, is situated between with first medium substrate and second
The coaxial thimble of matter substrate is around and being disposed vertically on first surface；
Characteristics of conformal electromagnetic bandgap structure, positioned at the 3rd medium substrate, which has cylindrical structure, wherein the
It is electromagnetic bandgap structure metal ground plate on five surfaces；The electromagnetic bandgap structure metal patch cycle with four arm L-shaped turn back lines
It is arranged on the 4th surface, it is conformal with the 3rd medium substrate.
Further, radiation patch has Y shape slot structure and H-shaped slot structure；
The Y shape slot structure has：
Symmetrical structure, 8 Y shape slots are symmetrical on the second surface central rotation of first medium substrate, and Y shape slot is by 3 etc.
Long straight-line groove composition, wherein Y shape slot first straight line slot one end are directed toward second surface center, other end termination second straight line slot and
3rd straight-line groove, second straight line slot and the 3rd straight-line groove angle are 45 °, Y shape slot structure are formed, with heart septum in second surface
45 ° of rotations obtain 8 Y shape slot structures；
The H-shaped slot structure has：
Symmetrical structure, 16 H-shaped slots are symmetrical on the second surface central rotation of first medium substrate, and H-shaped slot is on H
The first slot of shape slot is symmetrical, and H-shaped slot is made of the straight-line groove of 3 kinds of different lengths, and the first slot of H-shaped slot is perpendicular to Y shape slot second straight line
Slot, 2 the second slots of H-shaped slot are respectively perpendicular and center is located at the first slot of H-shaped slot both ends, during 2 the 3rd slots of H-shaped slot are respectively perpendicular simultaneously
The heart is located at the second slot of H-shaped slot both ends, forms H-shaped slot structure, and 1 Y shape slot terminates two H-shaped slot structures, thus obtains 16 H-shaped
Slot structure.
Further, according to the working frequency of paster antenna and the dielectric constant and thickness of the 3rd medium substrate, optimization
Design characteristics of conformal electromagnetic bandgap structure unit size and four arm L-shaped are turned back cable architecture；
Further, antenna realizes circular polarisation by four metallization VIAs, and four metallization VIAs are uniformly distributed in the
Between 8 Y shape slot structures of one medium substrate second surface；Feeding coaxial lines inner wire passes through metallization VIA and first medium
The radiation patch of second substrate surface is mutually welded, the antenna metal floor of coaxial outer conductor and first medium substrate first surface
Mutually weld.
The characteristics of conformal electromagnetic bandgap structure：
Characteristics of conformal electromagnetic bandgap structure is made of two rows of arrays, and conformal electromagnetic bandgap structure unit is around perpendicular to first
Centre of surface between centers obtains 32 units every 22.5 ° of rotations, is disposed vertically in the antenna metal of first medium substrate first surface
On floor, on the 4th surface with four arm L-shaped turn back cable architecture electromagnetic bandgap structure metal patch unit towards cylinder
Inside, the electromagnetic bandgap structure metal floor on the 5th surface towards cylindrical outer side, and with first medium substrate first surface
Antenna metal floor connects；
The four arms L-shaped is turned back cable architecture：
Four arm L-shaped turn back lines have centrosymmetric structure, by the identical turn back line structure composition of central square and 4,
Each L-shaped turn back line is by broken line connecting line and 5 kinds of different length rectilinear(-al)s, and L-shaped turn back line First Line has 3, remaining 4 groups of line
Respectively there are 2, wherein First Line one end is connected with central square end point and perpendicular to one side, the line of remaining 4 groups of different length,
The line vertical connection of every group of 2 equal lengths is arranged in order by the descending order of length, from inside to outside by rolling between each group
Line connecting line connects, and forms a L-shaped turn back line, and obtaining four arm L-shaped with 90 ° of central square central rotation turns back cable architecture.
The present invention compared with prior art the advantages of be：
(1) present invention uses the radiation patch of Y shape and H-shaped slot structure, effectively reduces the size of antenna；For optimization
Antenna Design parameter is more, and design freedom is big；
(2) present invention is using the equivalent preferable magnetic wall of characteristics of conformal electromagnetic bandgap structure, the beam angle of broadening antenna, and four
Arm L-shaped cable architecture of turning back realizes the miniaturization of electromagnetic bandgap structure；
(3) present invention is easy to implement double-circle polarization, the double circles of antenna can be realized by feeding network using 4 coaxial feeds
Polarize work.
Description of the drawings
Figure 1A is the schematic top plan view of present example；
Figure 1B is the schematic side view of present example；
Fig. 2A is the radiation patch schematic diagram of present example；
Fig. 2 B are the second medium substrate schematic top plan view of present example；
Fig. 3 A are the characteristics of conformal electromagnetic bandgap structure schematic side view of present example；
Fig. 3 B are the electromagnetic bandgap structure metal patch cell schematics with four arm L-shaped turn back lines of present example；
Fig. 4 is the first medium substrate and the 3rd medium baseplate structure relational graph of present example；
Fig. 5 A are the reflection coefficient curve of present example；
Fig. 5 B are that the axis of present example compares directional diagram；
Fig. 5 C are the gain pattern of present example；
Wherein, reference numeral meaning is：
100：First surface；
200：First medium substrate；
300：Second surface；
400：Second medium substrate；
500：3rd surface；
600：3rd medium substrate；
601：4th surface；
602：5th surface；
603：Electromagnetic bandgap structure unit metal patch；
603a：L-shaped turn back line First Line；
603b：The second line of L-shaped turn back line；
603c：The 3rd line of L-shaped turn back line；
603d：The 4th line of L-shaped turn back line；
603e：The 5th line of L-shaped turn back line；
603f：L-shaped turn back line central square；
603g：Broken line connecting line；
301：Radiation patch；
302：Y shape slot structure；
302a：The first slot of Y shape slot；
302b：The second slot of Y shape slot；
302c：The 3rd slot of Y shape slot；
303：H-shaped slot structure；
303a：The first slot of H-shaped slot；
303b：The second slot of H-shaped slot；
303c：The 3rd slot of H-shaped slot；
501：Parasitic patch；
F：Metallization VIA；
F1：Coaxial inner conductor；
F2：Coaxial outer conductor；
R1：Radiation patch radius；
R2：Parasitic patch radius；
R3：First medium substrate radius；
R4：Second medium substrate radius；
H：Electromagnetic bandgap structure height；
H1：First medium substrate thickness；
H2：Second medium substrate thickness；
H3：3rd dielectric substrate thickness；
H4：First medium substrate and second medium substrate distance；
Y：The second slot length of Y shape slot；
W：Y type groove width；
W1：The first slot length of H-shaped slot；
W2：The second slot length of H-shaped slot；
W3：The 3rd slot length of H-shaped slot；
E：L-shaped is turned back line width；
E0：The L-shaped turn back line central square length of side；
E1：The first line length of L-shaped turn back line；
E2：The second line length of L-shaped turn back line；
E3：The 3rd line length of L-shaped turn back line；
E4：The 4th line length of L-shaped turn back line；
E5：The 5th line length of L-shaped turn back line.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as a limitation of the invention.
Figure 1A, 1B are the vertical view and schematic side view of present pre-ferred embodiments.Fig. 2A, 2B are preferably real for the present invention
Apply radiation patch and second medium substrate in example.Fig. 3 A, 3B are characteristics of conformal electromagnetic bandgap structure side in preferred embodiments of the present invention
Depending on schematic diagram and with four arm L-shaped turn back lines electromagnetic bandgap structure metal patch cell schematics.Fig. 4 is present example
First medium substrate and the 3rd medium baseplate structure relational graph.
As shown in Figure 1A and 1B, antenna overall structure includes first surface 100, first medium substrate 200, second surface
300th, second medium substrate 400, the 3rd surface 500, the 3rd medium substrate 600, the 4th surface 601 and the 5th surface 602.It is thick
Spend has the first surface 100 being mutually parallel and second surface 300 for the first medium substrate 200 of H1；It is on first surface 100
Antenna metal floor is radiation patch 301 on second surface 300；Thickness is that the second medium substrate 400 of H2 is placed in parallel in the
One medium substrate, 200 top, spacing H4 are foam support between first medium substrate 200 and second medium substrate 400.It is thick
The 3rd medium substrate 600 spent for H3 has the 4th surface 601 and the 5th surface 602 of characteristics of conformal, is disposed vertically in first
On surface 100, the 4th surface 601 towards cylindrical inside, the 5th surface 602 towards cylindrical outer side, and on first surface 100
Antenna metal floor connect；
As shown in Figure 2 A, radiation patch 301 is the circle of radius R1, equal with Y shape slot structure and H-shaped slot structure, groove width
For W；Y shape slot 302 is made of the straight-line groove that 3 length are Y, and wherein second surface is directed toward in Y shape slot first straight line slot 302a one end
300 centers, other end termination second straight line slot 302b and the 3rd straight-line groove 302c, second straight line slot 302b and the 3rd straight-line groove
302c angles are 45 °, and 8 Y shape slot structures are obtained with 45 ° of rotations of heart septum in second surface 300；H-shaped slot 303 is by three kinds of differences
The straight-line groove composition of length, H-shaped slot the first slot 303a is perpendicular to Y shape slot the second slot 302b and the 3rd slot 302c, 2 H-shaped slots the
Two slot 303b are respectively perpendicular and center is located at H-shaped slot the first slot 303a both ends, during 2 the 3rd slot 303c of H-shaped slot are respectively perpendicular simultaneously
The heart is located at H-shaped slot the second slot 303b both ends, forms 303,1 Y shape slot 302 of H-shaped slot and terminates two H-shaped slot structures 303, thus
To 16 H-shaped slot structures.
Antenna realizes circular polarisation by four metallization VIA F, and four metallization VIA F are uniformly distributed in second surface
Between 300 8 Y shape slot structures；Feeding coaxial lines inner wire F1 is welded by metallization VIA F and 301 phase of radiation patch, together
Axis outer conductor F2 and the antenna metal floor of first surface 100 are mutually welded.
As shown in Figure 2 B, parasitic patch 501 is the circle of radius R2, positioned at 500 center of the 3rd surface.
As shown in Figure 3A, the thickness of the 3rd medium substrate 600 is H3, is electromagnetic bandgap structure metal on the 5th surface 602
Floor；Electromagnetic bandgap structure unit metal patch 603 is located on the 4th surface 601, towards cylindrical inside；On 4th surface 601
Electromagnetic bandgap structure unit obtain 16 units around perpendicular to the rotation of 22.5 ° of first surface central shaft interval.
As shown in Figure 3B, there are electromagnetic bandgap structure unit metal patch 603 four arm L-shaped to turn back cable architecture, by center just
Square 603f and 4 identical turn back line structure composition, by length be respectively E1, E2, E3, E4 and E5 straight line 603a, 603b,
603c, 603d, 603e and broken line connecting line 603g compositions.
As shown in figure 4, the 3rd medium substrate 600 has the 4th surface 601 and the 5th surface 602 of characteristics of conformal, with the
Two surfaces 300 are perpendicular, and the 4th surface 601 is towards cylindrical inside, and the 5th surface 602 is towards cylindrical outer side.
As shown in Figure 1A, in this preferred example, using broad beam circular polarisation Y shape-H-shaped of characteristics of conformal electromagnetic bandgap structure
Slot minimizes circle paster antenna generally cylindrical structural, first medium substrate radius R3 and second medium substrate radius R4
17mm, parasitic patch 501 are circular configuration, and radius R2 is 15mm.As shown in Figure 2 A, radiation patch 301 is circle, and radius R1 is
15.5mm has Y shape slot structure 302 and H-shaped slot structure 303, and groove width W is 0.5mm, and Y shape slot 302 is 6mm's by 3 length Y
Straight-line groove forms, and Y shape slot 302 terminates H-shaped slot 303, and H-shaped slot 303 is made of the straight-line groove of three kinds of different lengths, H-shaped slot first
Slot 303a flute length W1 is 1.6mm, and H-shaped slot the second slot 303b flute length W2 is 0.8mm, and the 3rd slot 303c flute length W3 of H-shaped slot is 1mm.
As shown in Figure 1B, the thickness H1 of first medium substrate 200 be 1.524mm, dielectric constant 2.97；Second medium base
The thickness H2 of plate 400 be 1.524mm, dielectric constant 2.97.First medium substrate 200 and 400 spacing H4 of second medium substrate
For 6mm.The thickness H3 of 3rd medium substrate 600 be 1mm, height H be 13mm, dielectric constant 5.95.Conformal electro-magnetic bandgap knot
There are structure four arm L-shaped to turn back cable architecture, and central square 603f length of sides E0 is 0.5mm, and line width E is 0.2mm, L-shaped turn back line the
One line 603a length E1 is 0.5mm, and L-shaped turn back line the second line 603b length E2 is 1.3mm, the 3rd line 603c long of L-shaped turn back line
Degree E3 is 2.7mm, and the 4th line 603d length E4 of L-shaped turn back line is 2.9mm, and the 5th line 603e length E5 of L-shaped turn back line is
3.5mm。
As shown in Figure 5A, it is the reflection coefficient curve of the embodiment of the present invention.Antenna reflectance factor in 2550MHz is low
In -10dB.
It is axis ratio of the antenna in 2550MHz, the gain pattern of the embodiment of the present invention as shown in Fig. 5 B, 5C, wherein
Include the directional diagram of phi=0 °, 45 °, 90 °, 135 ° section.From figure, it can be seen that, 3dB axis is 150 ° than width, 3dB beam angles
For 110 °.The present embodiment realizes good circular polarisation and broad beam performance.
From the invention described above preferred embodiment, it is using advantages of the present invention：Y shape-H-shaped slot circle paster antenna and circle
The combination of the conformal electromagnetic bandgap structure of column can make antenna miniaturization, and broadening antenna beamwidth improves antenna radiation performance.
Certainly, the present invention can also have other various embodiments, without deviating from the spirit and substance of the present invention, ripe
Various corresponding changes and deformation, but these corresponding changes and deformation can be made according to the present invention by knowing those skilled in the art
The protection domain of the claims in the present invention should all be belonged to.
Claims (4)
1. a kind of broad beam circular polarisation Y shape-H-shaped slot miniaturization circle paster antenna using characteristics of conformal electromagnetic bandgap structure,
It is characterized in that including：
First medium substrate has the first surface and second surface being mutually parallel；
Radiation patch, positioned at the second surface center of first medium substrate, the first medium substrate and radiation patch are circle
Shape, radiation patch have Y shape and H-shaped slot structure；
Antenna metal floor：Positioned at the first surface of first medium substrate；
Metallization VIA：Positioned at first medium substrate；
Second medium substrate is placed in parallel in first medium surface, is between first medium substrate and second medium substrate
Foam support；
Parasitic patch, positioned at the 3rd centre of surface of second medium substrate, the second medium substrate and parasitic patch are circle
Shape；
3rd medium substrate has the 4th surface and the 5th surface of characteristics of conformal, with first medium substrate and second medium base
The coaxial thimble of plate is around and being disposed vertically on first surface；The electromagnetism of cable architecture of turning back with four arm L-shaped on 4th surface
Bandgap structure metal patch unit is towards cylindrical inside, and electromagnetic bandgap structure metal floor on the 5th surface is towards outside cylinder
Side；
Characteristics of conformal electromagnetic bandgap structure, positioned at the 3rd medium substrate, which has cylindrical structural, wherein the 5th table
It is electromagnetic bandgap structure metal floor on face；Electromagnetic bandgap structure metal patch unit cycle row with four arm L-shaped turn back lines
It is listed on the 4th surface.
2. a kind of broad beam circular polarisation Y shape-H-shaped slot using characteristics of conformal electromagnetic bandgap structure according to claim 1
Miniaturization circle paster antenna, it is characterised in that：Radiation patch has Y shape and H-shaped slot structure；
The Y shape slot structure has：
Symmetrical structure, 8 Y shape slots are symmetrical on the second surface central rotation of first medium substrate, and Y shape slot is isometric by 3
Straight-line groove forms, and wherein second surface center, other end termination second straight line slot and the 3rd are directed toward in Y shape slot first straight line slot one end
Straight-line groove, second straight line slot and the 3rd straight-line groove angle are 45 °, form Y shape slot structure, with 45 ° of rotations of heart septum in second surface
Turn to obtain 8 Y shape slot structures；
The H-shaped slot structure has：
Symmetrical structure, 16 H-shaped slots are symmetrical on the second surface central rotation of first medium substrate, and H-shaped slot is on H-shaped slot
First slot is symmetrical, and H-shaped slot is made of the straight-line groove of 3 kinds of different lengths, and the first slot of H-shaped slot is perpendicular to Y shape slot second straight line slot, and 2
A the second slot of H-shaped slot is respectively perpendicular and center is located at the first slot of H-shaped slot both ends, and 2 the 3rd slots of H-shaped slot are respectively perpendicular and centre bit
In the second slot of H-shaped slot both ends, H-shaped slot structure is formed, 1 Y shape slot terminates two H-shaped slot structures, thus obtains 16 H-shaped slot knots
Structure.
3. a kind of broad beam circular polarisation Y shape-H-shaped slot using characteristics of conformal electromagnetic bandgap structure according to claim 1
Miniaturization circle paster antenna, it is characterised in that：Antenna realizes circular polarisation by four metallization VIAs；
The metallization VIA：
Four metallization VIAs are uniformly distributed between 8 Y shape slot structures of first medium second substrate surface, feeding coaxial lines
Inner wire is mutually welded by metallization VIA and the radiation patch of first medium second substrate surface, coaxial outer conductor and first
It mutually welds on the antenna metal floor of medium substrate first surface.
4. a kind of broad beam circular polarisation Y shape-H-shaped slot using characteristics of conformal electromagnetic bandgap structure according to claim 1
Miniaturization circle paster antenna, it is characterised in that：According to the working frequency of paster antenna and the dielectric constant of the 3rd medium substrate
And thickness, optimization design characteristics of conformal electromagnetic bandgap structure unit size and four arm L-shaped are turned back cable architecture；
The characteristics of conformal electromagnetic bandgap structure：
Characteristics of conformal electromagnetic bandgap structure is made of two rows of arrays, and conformal electromagnetic bandgap structure unit surrounds first surface center
Between centers obtains 32 units every 22.5 ° of rotations, is disposed vertically on the antenna metal floor of first medium substrate first surface,
On 4th surface with four arm L-shaped turn back cable architecture electromagnetic bandgap structure metal patch unit towards cylindrical inside, the 5th
Electromagnetic bandgap structure metal floor on surface is towards cylindrical outer side, and with the antenna metal of first medium substrate first surface
Plate connects；
The four arms L-shaped is turned back cable architecture：
Four arm L-shaped turn back cable architecture with centrosymmetric structure, are turned back cable architecture group by central square and 4 identical L-shaped
Into each L-shaped turns back cable architecture by broken line connecting line and 5 kinds of different length rectilinear(-al)s, and L-shaped cable architecture First Line of turning back has 3
A, remaining 4 groups of line respectively has 2, and wherein First Line one end is connected with central square end point and perpendicular to one side, remaining 4 groups
The line of different length, the line vertical connection of every group of 2 equal lengths are arranged successively from inside to outside by the descending order of length
It arranges, is attached between each group by broken line connecting line, form a L-shaped turn back line, obtained for 90 ° with central square central rotation
Four arm L-shaped are turned back cable architecture.
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| CN107275752A (en) * | 2017-06-13 | 2017-10-20 | 南京理工大学 | Characteristics of conformal micro-strip array antenna based on manual electromagnetic structure |
| CN107196050B (en) * | 2017-07-07 | 2023-05-30 | 桂林电子科技大学 | Miniaturized dual-band circularly polarized antenna loaded with electromagnetic metamaterial |
| CN107768833B (en) * | 2017-10-09 | 2024-03-15 | 成都瑞德星无线技术有限公司 | Random polarization wide wave beam patch antenna |
| CN108428997B (en) * | 2018-01-17 | 2020-08-21 | 深圳市华信天线技术有限公司 | Broadband planar antenna |
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| CN101273491A (en) * | 2005-07-12 | 2008-09-24 | 欧洲Gnss监督管理局 | Multi-band antenna for satellite positioning system |
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| CN101273491A (en) * | 2005-07-12 | 2008-09-24 | 欧洲Gnss监督管理局 | Multi-band antenna for satellite positioning system |
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