CN101388484B - Thin-film omni-directional wideband surface conformal antenna - Google Patents
Thin-film omni-directional wideband surface conformal antenna Download PDFInfo
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- CN101388484B CN101388484B CN2008102240095A CN200810224009A CN101388484B CN 101388484 B CN101388484 B CN 101388484B CN 2008102240095 A CN2008102240095 A CN 2008102240095A CN 200810224009 A CN200810224009 A CN 200810224009A CN 101388484 B CN101388484 B CN 101388484B
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Abstract
The invention discloses a slice omnidirectional broadband surface conformal antenna, which is formed by an antenna (1), a coaxial feeding joint (3), an A resistance (4) and a B resistance (5), wherein the structure of the A resistance (4) is same with the structure of the B resistance (5), the sensitive end of a probe (35) in the coaxial feeding joint (3) is welded on the feeding end (1a) of the bottom end of the antenna (1), the coaxial feeding joint (3) is mounted on the lower plate surface (2b) of a mounting plate (2), the A resistance (4) is mounted between the bottom of a right antenna wing (12) of the antenna (1) and the upper plate surface (2a) of the mounting plate (2), and the B resistance (5) is mounted between the bottom of a left antenna wing (13) of the antenna (1) and the upper plate surface (2a) of the mounting plate (2). The slice omnidirectional broadband surface conformal antenna simultaneously adopts bottom-end two-side resistance loading and a bottom-end conical gradation structures which lead the band width of the slice omnidirectional broadband surface conformal antenna to be widened. Compared with the bowed antennas which are used at present, the surface conformal antenna with a slice structure can reduce the negative influence to platform pneumatic property, the installation position is flexible, and a place which is convenient for antennas to play efficiency is chosen to mount.
Description
Technical field
The present invention relates to a kind of omnidirectional wideband antenna, more particularly say, be meant a kind of can with the conformal or conformal platform of object surface structure omnidirectional wideband antenna conformal, that have flake structure is installed.
Background technology
Be applied to the omnidirectional wideband antenna on the telecommunications mobile platform at present; General many employing sabre type antennas are though the sabre antenna is simple in structure, electric property stable, owing to receive the restriction of antenna form; The assembling of sabre antenna and platform; Make the sabre antenna must stretch out platform surface, destroyed the aerodynamic characteristic of platform, simultaneously the electromagnetic property of platform is also brought certain influence.
Summary of the invention
The purpose of this invention is to provide a kind of can with the omnidirectional wideband antenna with flake structure of multiple shaped objects conformal.This antenna structure is simple, and handling ease can adopt means such as heavy copper, stickup to stick the surface in conformal platform, thereby reaches the good fusion with the mobile platform surface texture.Compare with the sabre type antenna of present use, the conformal antenna of flake structure can reduce the negative effect to the platform aeroperformance, and the installation site is flexible, and install in the place that can select to be convenient to antenna performance effect.
The present invention be a kind of can with the conformal omnidirectional wideband antenna with flake structure of object surface structure is installed, constitute by antenna, coaxial feed joint, A resistance, B resistance; The sensitivity end of the probe in the coaxial feed joint is welded on the feed end of bottom of antenna, and the energy of coaxial feed joint output is from the feed end feed-in, and then evokes the antenna surface electric current, thereby produces radiation; The coaxial feed joint is installed on the lower face of mounting panel; A resistance is installed between the upper face of bottom and mounting panel of the right side antenna wing of antenna; B resistance is installed between the upper face of bottom and mounting panel of the left side antenna wing of antenna.
The structure of antenna of the present invention is on a rectangular substrate, to adopt the wire cutting method cutting to remove to have the left crack of " L " configuration, right crack, and said left crack, right crack are symmetrical set with center line, and the interior corner cut θ of " L " configuration
1Be the right angle, the outer corner cut θ of " L " configuration
2Be 100~120 degree.After removing left crack, right crack on the rectangular substrate, the profile of antenna is divided into antenna body, feed end, the right side antenna wing, the left side antenna wing.
The advantage of thin-film omni-directional wideband surface conformal antenna of the present invention is:
(1) antenna is whole is flake structure, in light weight, simple in structure, is easy to processing.
(2) antenna has adopted bottom two side resistances to load and bottom conical gradual change structure simultaneously, makes the bandwidth of antenna of the present invention be able to broadening.
(3) antenna structure is flexible, can with the kinds of platform conformal.
When (4) antenna and mobile platform are conformal, can adopt the method that sticks, it is sticked on the inner surface of platform, thereby help improving the aerodynamic characteristic and the electromagnetic property of platform; Improved the useful life of antenna of the present invention simultaneously.
Description of drawings
Fig. 1 is the cutaway view of thin-film omni-directional wideband surface conformal antenna of the present invention.
Fig. 2 is the vertical view of mounting panel.
Fig. 3 is the assembling diagrammatic sketch of the lower face of coaxial feed joint and mounting panel.
Fig. 4 is thin-film omni-directional wideband surface conformal antenna of the present invention and the conformal diagrammatic sketch of cuboid body surface.
Fig. 5 is thin-film omni-directional wideband surface conformal antenna of the present invention and the conformal diagrammatic sketch of parabolic cylinder shaped objects.
Among the figure: 1. the antenna 1a. feed end 11. antenna bodies 12. right side antenna wings 13. left side antenna wings 14. right crack 15. left crack 2. installing plate 2a. upper face 2b. lower face 21.A through hole 22.B through hole 23.C through hole 24.D through holes 25. central through holes 3. coaxial feed joint 31.E through hole 32.F through hole 33.G through hole 34.H through holes 35. probe 4.A resistance 5.B resistance 6. vertical center lines 7. vertical center lines
Embodiment
To combine accompanying drawing and embodiment that the present invention is done further detailed description below.
Referring to Fig. 1, Fig. 2, shown in Figure 3; The present invention be a kind of can with the conformal omnidirectional wideband antenna with flake structure of object surface structure is installed, constitute by antenna 1, coaxial feed joint 3 (N type radio frequency (RF) coaxial connector), A resistance 4, B resistance 5 with circular terminal; A resistance 4 is identical with B resistance 5 structures, and choosing resistance is 100~500 Ω, and the best is the Chip-R of 200 Ω.The sensitivity end of the probe 35 in the coaxial feed joint 3 is welded on the feed end 1a of bottom of antenna 1, and the energy of coaxial feed joint 3 outputs is from feed end 1a feed-in, and then evokes antenna 1 surface current, thereby produces radiation; Coaxial feed joint 3 is installed on the lower face 2b of mounting panel 2; A resistance 4 is installed between the upper face 2a of bottom and mounting panel 2 of the right side antenna wing 12 of antenna 1; B resistance 5 is installed between the upper face 2a of bottom and mounting panel 2 of the left side antenna wing 13 of antenna 1.
Referring to shown in Figure 2; Mounting panel 2 is provided with A through hole 21, B through hole 22, C through hole 23, D through hole 24; Central through hole 25; Through hole coupling on A through hole 21, B through hole 22, C through hole 23, D through hole 24 and the coaxial feed joint 3 is through realize being connected of coaxial feed joint 3 and mounting panel 2 cooperating of screw and nut.
Referring to shown in Figure 3, coaxial feed joint 3 is the commercially available prod, and the center of coaxial feed joint 3 is a probe 35, and probe 35 is used for the feed end 1a with sensing to antenna body 11 bottoms of transmitter feed-in.Through hole coupling on through hole on the coaxial feed joint 3 (E through hole 31, F through hole 32, G through hole 33, H through hole 34) and the mounting panel 2 is through realize being connected of coaxial feed joint 3 and mounting panel 2 cooperating of screw and nut.
Referring to shown in Figure 1, the structure of antenna 1 is on a rectangular substrate, to adopt the wire cutting method cutting to remove left crack 15, the right crack 14 with " L " configuration, and said left crack 15, right crack 14 are symmetrical set with center line, and the interior corner cut θ of " L " configuration
1Be the right angle, the outer corner cut θ of " L " configuration
2Be 100~120 degree.
After removing left crack 15, right crack 14 on the rectangular substrate, the profile of antenna 1 is divided into antenna body 11, feed end 1a, the right side antenna wing 12, the left side antenna wing 13;
The bottom of the right side antenna wing 12 is welded with an end of A resistance 4, and the other end of A resistance 4 is welded on the upper face 2a of mounting panel face 2; The right side antenna wing 12 equates with the width of the left side antenna wing 13.Be d
1=d
2
The bottom of the left side antenna wing 13 is welded with an end of B resistance 5, and the other end of B resistance 5 is welded on the upper face 2a of mounting panel face 2.
The configuration of antenna 1 of the present invention is designed and sized to: the thickness of antenna 1 is 0.5~1.5mm, the top width D=350 of antenna body 11~500mm, the width d of the base drive end 1a of antenna 1
0=5~15mm, the conical section height h of antenna body 11
1=30~100mm, the flat segments height h of antenna body 11
2=1000~1500mm; Left side crack 15 equates with the width of right crack 14, i.e. d=2~20mm, the width d of the left side antenna wing 13
2=5~20mm, the width d of the right side antenna wing 12
1=5~20mm.
In the present invention, antenna body 11 has been critical pieces of radiation effects, is used for to the space radiation electromagnetic wave, forms the antenna pattern of horizontal omnidirectional.When transmitting; Transmitting of the coaxial feed joint 3 external transmitters of input; Signal is input to feed probes 35, and probe 35 evokes the surface current on the antenna body 11, and the antenna wing 13, the right side antenna wing 12 flow into B resistance 5, A resistance 4 to this electric current along the left side respectively; And partially absorbed and directly import in the mounting panel 2 by B resistance 5, A resistance 4, thereby help improving the impedance operator of antenna 1.
The antenna structure of the present invention's design can be conformal with multiple curved surface, and after conformal, the performance of antenna is constant basically.
Embodiment 1:Antenna of the present invention and cuboid object surfaces are conformal
Referring to shown in Figure 4; One cuboid object is arranged on the mounting panel 2; If antenna 1 of the present invention is installed at the joint of cuboid object and mounting panel 2; Then the center line of antenna 1 should with vertical center line 6 overlaids of cuboid object shaped surfaces, then the feed end 1a of antenna 1 is positioned at the bottom dead center position of cuboid object shaped surfaces, antenna 1 is fitted with the cuboid object surfaces.
When the antenna of the present invention's design and the conformal of cuboid, the crooked place of antenna changes with the width of cuboid object shaped surfaces is different.Concrete condition is:
If the width of cuboid object shaped surfaces is less than top width D, then conformal antenna bends along the symmetrical position of center line in the inside of antenna body 11; If the width of cuboid object shaped surfaces is greater than top width D and less than D+2d, then conformal antenna bends with right crack 14 inside at left crack 15 respectively.
Embodiment 2:The object of antenna of the present invention and parabolic cylinder shape conformal
Referring to shown in Figure 5; The object that one parabolic cylinder shape is arranged on the mounting panel 2; If antenna 1 of the present invention is installed at the object of parabolic cylinder shape and the joint of mounting panel 2; Then the center line of antenna 1 should with vertical center line 7 overlaids of the object shaped surfaces of parabolic cylinder shape, then the feed end 1a of antenna 1 is positioned at the bottom dead center position of the object shaped surfaces of parabolic cylinder shape, antenna 1 is fitted with the object surfaces of parabolic cylinder shape.Antenna 1 of the present invention is vertical center line 7 symmetries with the object of parabolic cylinder shape, and consistent with the configuration of the object of parabolic cylinder shape.
Claims (6)
1. a thin-film omni-directional wideband surface conformal antenna is characterized in that: be made up of antenna (1), coaxial feed joint (3), A resistance (4), B resistance (5); A resistance (4) is identical with B resistance (5) structure; The sensitivity end of the probe (35) in the coaxial feed joint (3) is welded on the feed end (1a) of bottom of antenna (1), and coaxial feed joint (3) is installed on the lower face (2b) of mounting panel (2); A resistance (4) is installed between the upper face (2a) of bottom and mounting panel (2) of the right side antenna wing (12) of antenna (1); B resistance (5) is installed between the upper face (2a) of bottom and mounting panel (2) of the left side antenna wing (13) of antenna (1);
Mounting panel (2) is provided with A through hole (21), B through hole (22), C through hole (23), D through hole (24), central through hole (25);
The structure of antenna (1) is on a rectangular substrate, to adopt the wire cutting method cutting to remove to have the left crack (15) of " L " configuration, right crack (14), and said left crack (15), right crack (14) are symmetrical set with center line, and the interior corner cut θ of " L " configuration
1Be the right angle, the outer corner cut θ of " L " configuration
2Be 100~120 degree; After removing left crack (15), right crack (14) on the rectangular substrate, the profile of antenna (1) is divided into antenna body (11), feed end (1a), the right side antenna wing (12), the left side antenna wing (13).
2. thin-film omni-directional wideband surface conformal antenna according to claim 1 is characterized in that: the configuration of antenna (1) is designed and sized to, the top width D=350~500mm of antenna body (11), the width d of the base drive end (1a) of antenna (1)
0=5~15mm, the conical section height h of antenna body (11)
1=30~100mm, the flat segments height h of antenna body (11)
2=1000~1500mm; Left side crack (15) equates with the width of right crack (14), i.e. d=2~20mm, the width d of the left side antenna wing (13)
2=5~20mm, the width d of the right side antenna wing (12)
1=5~20mm; The thickness of antenna (1) is 0.5~1.5mm.
3. thin-film omni-directional wideband surface conformal antenna according to claim 1 is characterized in that: antenna can be conformal with the cuboid object surfaces.
4. thin-film omni-directional wideband surface conformal antenna according to claim 1 is characterised in that altogether: antenna can be conformal with the object surfaces of parabolic cylinder shape.
5. thin-film omni-directional wideband surface conformal antenna according to claim 1 is characterized in that: A resistance (4) is the Chip-R of 100~500 Ω with the resistance of B resistance (5).
6. thin-film omni-directional wideband surface conformal antenna according to claim 1 is characterized in that: A resistance (4) is the Chip-R of 200 Ω with the resistance of B resistance (5).
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CN2008102240095A CN101388484B (en) | 2008-10-09 | 2008-10-09 | Thin-film omni-directional wideband surface conformal antenna |
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CN2008102240095A CN101388484B (en) | 2008-10-09 | 2008-10-09 | Thin-film omni-directional wideband surface conformal antenna |
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CN101388484B true CN101388484B (en) | 2012-01-11 |
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CN104157956B (en) * | 2014-08-18 | 2016-08-24 | 哈尔滨工业大学 | Radio frequency explosive magnetic compression generator miniaturization conformal antenna |
CN108091988A (en) * | 2016-11-23 | 2018-05-29 | 北京遥感设备研究所 | A kind of miniaturization low section ultrashort wave antenna |
CN110190379B (en) * | 2019-05-05 | 2021-09-21 | 中国商用飞机有限责任公司 | Airborne high-frequency antenna |
CN110828984B (en) * | 2019-10-28 | 2021-06-25 | 常州安塔歌电子科技有限公司 | Compact saber antenna with reconfigurable directional diagram |
CN114421165A (en) * | 2022-01-13 | 2022-04-29 | 西安电子科技大学 | Resistance-loaded ultra-wideband dual-polarized four-ridge horn antenna |
CN114824777B (en) * | 2022-05-24 | 2023-06-23 | 西安交通大学 | Arc-shaped circuit of mirror surface single cone antenna |
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CN1972014A (en) * | 2006-10-26 | 2007-05-30 | 上海交通大学 | Pocket super-broadband antenna |
WO2008001148A1 (en) * | 2006-06-23 | 2008-01-03 | Nokia Corporation | Conformal and compact wideband antenna |
CN101281998A (en) * | 2007-10-19 | 2008-10-08 | 哈尔滨工业大学 | Millimeter wave band broadband cylinder conformal 4*4 microstrip antenna as well as design method thereof |
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2008
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WO2008001148A1 (en) * | 2006-06-23 | 2008-01-03 | Nokia Corporation | Conformal and compact wideband antenna |
CN1972014A (en) * | 2006-10-26 | 2007-05-30 | 上海交通大学 | Pocket super-broadband antenna |
CN101281998A (en) * | 2007-10-19 | 2008-10-08 | 哈尔滨工业大学 | Millimeter wave band broadband cylinder conformal 4*4 microstrip antenna as well as design method thereof |
Non-Patent Citations (1)
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