CN109546353B - Sharp-angle holographic antenna - Google Patents
Sharp-angle holographic antenna Download PDFInfo
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- CN109546353B CN109546353B CN201811361508.9A CN201811361508A CN109546353B CN 109546353 B CN109546353 B CN 109546353B CN 201811361508 A CN201811361508 A CN 201811361508A CN 109546353 B CN109546353 B CN 109546353B
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- 230000005855 radiation Effects 0.000 claims abstract description 39
- 230000001154 acute effect Effects 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 7
- 238000010586 diagram Methods 0.000 abstract description 14
- 230000002411 adverse Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000001902 propagating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/06—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens
- H01Q19/067—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens using a hologram
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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/02—Waveguide horns
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/02—Refracting or diffracting devices, e.g. lens, prism
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- Waveguide Aerials (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The invention relates to a pointed holographic antenna, comprising: a waveguide horn member 102; the horn port 1022 of the waveguide horn assembly 102 is tapered. By applying the embodiment of the invention, the generation efficiency of the radiation direction diagram and the radiation efficiency of the electromagnetic waves can be improved.
Description
Technical Field
The invention belongs to the technical field of antennas, and particularly relates to a sharp-angled holographic antenna.
Background
With the development of antenna technology, holographic antennas have come into play. Compare traditional plane of reflection antenna, holographic antenna can be according to application environment and actual demand, through changing holographic structure part in order to obtain required radiation characteristic, and need not fixed profile structure, and the hidden nature is better.
Currently, holographic antennas may include a waveguide horn component and a holographic structure component. The electromagnetic wave radiated from the waveguide horn may form a radiation pattern through the hologram structure member.
However, since the electromagnetic waves travel different distances in the waveguide horn, a phase difference may occur, which may affect the generation efficiency of the radiation pattern and the radiation efficiency of the electromagnetic waves.
Disclosure of Invention
In order to solve the above problems in the prior art, the present invention provides a pointed holographic antenna. The technical problem to be solved by the invention is realized by the following technical scheme:
the embodiment of the invention provides a pointed holographic antenna, which comprises: a waveguide horn member 102; the horn port 1022 of the waveguide horn assembly 102 is tapered.
In one embodiment of the present invention, the position of the apex of the acute angle is determined by a preset origin and a preset side length, wherein the preset origin is the intersection of the extension lines of the two horn radiating sides 10226 of the waveguide horn assembly 102, and the preset side length is the distance from the preset origin, along the horn radiating sides 10226, to the horn port 1022.
In one embodiment of the invention, the distance between the vertex of the pointed shape and the predetermined origin is equal to a predetermined side length.
In one embodiment of the invention, the apex of the taper is equidistant from the two flared radiating edges for any flared cross-section of the waveguide horn section.
In one embodiment of the present invention, the waveguide horn device 102 is an H-plane horn antenna.
In one embodiment of the present invention, the holographic structural component 104 comprises: the dielectric plate 1042 is provided with metal holographic fringes 1044.
In one embodiment of the present invention, the dielectric plate 1042 is perpendicular to the plane of the flared section of the waveguide horn 102.
In one embodiment of the present invention, the waveguide horn assembly 102 includes a rectangular waveguide feed cavity 1024 and a horn radiation cavity 1026, and the rectangular waveguide feed cavity 1024 is connected to the horn radiation cavity 1026.
Compared with the prior art, the invention has the beneficial effects that:
the embodiment of the invention provides a pointed holographic antenna, and particularly, the holographic antenna can comprise a waveguide horn component, wherein a horn port of the waveguide horn component is pointed. Thus, after the electromagnetic wave enters the waveguide horn component, no matter the electromagnetic wave is radiated from the central part of the horn port or from the two side parts of the horn port, the difference of the propagation distances of the electromagnetic wave in the waveguide horn component is small, so that the generated phase difference can be reduced, the adverse effects on the generation efficiency of the radiation direction diagram and the radiation efficiency of the electromagnetic wave caused by the phase difference can be reduced, and the generation efficiency of the radiation direction diagram and the radiation efficiency of the electromagnetic wave can be improved.
Drawings
FIG. 1 is a schematic structural diagram of a pointed holographic antenna according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another pointed holographic antenna according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another pointed holographic antenna according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to specific examples, but the embodiments of the present invention are not limited thereto.
Example one
Referring to fig. 1 and fig. 3, fig. 1 is a schematic structural diagram of a pointed holographic antenna according to an embodiment of the present invention, and fig. 3 is a schematic structural diagram of another pointed holographic antenna according to an embodiment of the present invention.
As shown in fig. 1 and 3, the hologram antenna includes: a waveguide horn device 102 and a holographic structure device 104, wherein the horn port 1022 of the waveguide horn device 102 is sharp-angled.
Specifically, the hologram antenna includes: the waveguide horn member 102 includes a rectangular waveguide feeding cavity 1024 and a horn radiation cavity 1026, and the rectangular waveguide feeding cavity 1024 is connected with the horn radiation cavity 1026 to form the waveguide horn member 102. In the waveguide horn device 102, the open surface on the horn radiating cavity 1026 side is the horn port 1022.
It can be understood that, as shown in fig. 1, in the waveguide horn device 102, the dimension of the horn aperture of the horn radiation cavity 1026 is gradually increased, the electromagnetic wave enters the waveguide horn device 102 from the rectangular waveguide feed cavity 1024, and if the horn port 1022 is in a conventional linear shape, the propagation distance of the electromagnetic wave radiated from the central portion of the horn port 1022 is significantly shorter than the propagation distance of the electromagnetic wave radiated from the two side portions of the horn port 1022, which results in a larger phase difference of the electromagnetic wave.
In practical applications, the holographic structure component 104 includes a dielectric plate 1042 and metal holographic fringes 1044 disposed on the dielectric plate 1042. The electromagnetic wave emitted from the waveguide horn 102 forms a surface wave in the dielectric plate 1042, and the surface wave encounters the metal holographic stripe 1044 disposed on the dielectric plate 1042 when propagating in the dielectric plate 1042, so as to excite the radiation to form a final radiation pattern. After being excited and radiated, some electromagnetic waves with large phase difference cannot interfere and overlap in the main radiation direction, so that the formed radiation pattern is distorted, and the radiation efficiency of the electromagnetic waves is reduced.
In the holographic antenna provided by the embodiment of the present invention, by setting the horn port 1022 to be in a sharp shape, the difference in the propagation distance between the electromagnetic waves radiated from the central portion of the horn port 1022 and the two side portions of the horn port 1022 is small, and therefore, the generated phase difference can be reduced, thereby reducing the distortion of the formed radiation pattern and the adverse effect on the radiation efficiency of the electromagnetic waves. In addition, the sharp horn port 1022 is easy to process, low in cost and high in yield.
It should be noted that the apex of the acute angle shape is at least one, and may be determined according to actual conditions.
Therefore, after the electromagnetic waves enter the waveguide horn component, no matter the electromagnetic waves are radiated from the central part of the horn port or from the two side parts of the horn port, the difference of the propagation distances of the electromagnetic waves in the waveguide horn component is small, so that the generated phase difference can be reduced, the adverse effects on the generation efficiency of the radiation direction diagram and the radiation efficiency of the electromagnetic waves caused by the phase difference can be reduced, and the generation efficiency of the radiation direction diagram and the radiation efficiency of the electromagnetic waves can be improved.
Example two
Referring to fig. 2, fig. 2 is a schematic structural diagram of another pointed holographic antenna according to an embodiment of the present invention. In fig. 2, the position of the apex of the acute angle is determined by a preset origin and a preset side length, wherein the preset origin is the intersection of the extension lines of the two horn radiating sides 10226 of the waveguide horn assembly 102, and the preset side length is the distance from the preset origin, the horn radiating sides 10226, and the horn port 1022.
Specifically, as shown in fig. 2, the predetermined origin is a point O, the predetermined side length is R, and the vertex of the acute angle is P. The predetermined origin may be an intersection of extension lines of the horn radiating edges 10226 of the waveguide horn unit 102, and the predetermined side length is a distance from the origin, along the horn radiating edges 10226, to the horn port 1022. Meanwhile, the distance between the vertex of the acute angle and the predetermined origin is equal to the predetermined side length, so that the position of the vertex of the acute angle can be determined on the horn port 1022.
As can be appreciated, in this way, whether the electromagnetic wave is radiated from the middle portion of the horn port 1022 or from the two side portions of the horn port 1022, the difference in the distance of propagation of the electromagnetic wave in the waveguide horn member 102 is small, and therefore, the generated phase difference can be reduced, thereby reducing the adverse effect on the generation efficiency of the radiation pattern due to the phase difference.
Optionally, the apex of the acute angle is equidistant from both horn radiating edges 10226 of the waveguide horn assembly 102.
Specifically, the vertex of the sharp corner may be located on the central line of the waveguide horn device 102, and the distance between the vertex and the predetermined origin is a predetermined side length. As described above, the distance that the electromagnetic wave propagates through the waveguide horn member 102 is substantially the same regardless of whether the electromagnetic wave is radiated from the central portion of the horn port 1022 or from both side portions of the horn port 1022, so that the generated phase difference is reduced as much as possible.
In one implementation, the waveguide horn device 102 is an H-plane horn antenna. As shown in fig. 3, fig. 3 is a schematic structural diagram of another pointed-angle-shaped holographic antenna provided in the embodiment of the present invention, in fig. 3, the holographic structural component 104 includes: a dielectric plate 1042; the dielectric plate 1042 is provided with metal holographic fringes 1044. The dielectric plate 1042 is perpendicular to the plane of the horn section of the waveguide horn 102.
It should be noted that, when the waveguide horn device 102 in fig. 1 is viewed from top to bottom, a top view of the waveguide horn device 102, specifically, a rectangle, can be obtained, as shown in the waveguide horn device 102 in fig. 3. It is understood that the plane of the flared section of the waveguide horn 102 is perpendicular to the horizontal plane, the plane of the holographic structure 104 is the horizontal plane, and the holographic structure 104 is perpendicular to the plane of the flared section of the waveguide horn 102.
Specifically, in practical applications, the waveguide horn device 102 may be an H-plane horn antenna. The holographic structural component 104 may include a dielectric plate 1042, and the dielectric plate 1042 is provided with metal holographic fringes 1044 thereon. The electromagnetic wave radiated by the H-plane horn antenna forms a surface wave in the dielectric plate 1042, and the surface wave encounters the metal holographic stripe 1044 disposed on the dielectric plate 1042 when propagating in the dielectric plate 1042, so that radiation can be excited to form a final radiation pattern.
It should be noted that, since the H-plane horn antenna compresses the energy of the electromagnetic wave to the plane perpendicular to the flared cross section, in order to make the electromagnetic wave radiated by the H-plane horn antenna propagate on the dielectric plate 1042 as much as possible, the dielectric plate 1042 may be placed on the plane perpendicular to the plane where the flared cross section of the waveguide horn member 102 is located, and may be specifically implemented by a bracket. Thus, the electromagnetic wave radiated from the H-plane horn antenna can propagate through the dielectric plate 1042, and a radiation pattern is finally formed.
Therefore, after the electromagnetic waves enter the H-plane horn antenna, no matter the electromagnetic waves are radiated from the central part of the horn port or from the two side parts of the horn port, the difference of the propagation distances of the electromagnetic waves in the H-plane horn antenna is small, the generated phase difference can be reduced, the adverse effects on the generation efficiency of the radiation direction diagram and the radiation efficiency of the electromagnetic waves caused by the phase difference can be reduced, and the generation efficiency of the radiation direction diagram and the radiation efficiency of the electromagnetic waves can be improved.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (5)
1. A pointed holographic antenna, characterized in that it comprises: a waveguide horn device (102) and a holographic structure device (104), wherein a horn port (1022) of the waveguide horn device (102) is pointed;
the waveguide horn component (102) is an H-plane horn antenna;
the holographic structural component (104) comprises: the medium plate (1042) is provided with metal holographic fringes (1044);
the dielectric plate (1042) is perpendicular to the plane of the horn-shaped section of the waveguide horn member (102).
2. The holographic antenna of claim 1,
the position of the vertex of the pointed angle is determined by a preset origin and a preset side length, wherein the preset origin is the intersection point of the extension lines of the two horn radiation sides (10226) of the waveguide horn component (102), and the preset side length is the distance from the preset origin, the horn radiation sides (10226) and the horn port (1022).
3. The holographic antenna of claim 2,
and the distance between the vertex of the pointed angle and the preset origin is equal to the preset side length.
4. The holographic antenna of claim 2,
the distances from the vertex of the acute angle to the two radiation sides of the horn are equal.
5. The holographic antenna of claim 1,
the waveguide horn component (102) comprises a rectangular waveguide feed cavity (1024) and a horn radiation cavity (1026), and the rectangular waveguide feed cavity (1024) is connected with the horn radiation cavity (1026).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811361508.9A CN109546353B (en) | 2018-11-15 | 2018-11-15 | Sharp-angle holographic antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811361508.9A CN109546353B (en) | 2018-11-15 | 2018-11-15 | Sharp-angle holographic antenna |
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| Publication Number | Publication Date |
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| CN109546353A CN109546353A (en) | 2019-03-29 |
| CN109546353B true CN109546353B (en) | 2021-06-01 |
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| CN201811361508.9A Active CN109546353B (en) | 2018-11-15 | 2018-11-15 | Sharp-angle holographic antenna |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201503918U (en) * | 2009-09-25 | 2010-06-09 | 中国电子科技集团公司第十四研究所 | Horn antenna with constant wave-beam |
| CN106602274A (en) * | 2016-11-18 | 2017-04-26 | 电子科技大学 | Substrate integrated waveguide pyramid-contained horn antenna and design method thereof |
| CN107093802A (en) * | 2017-03-20 | 2017-08-25 | 东南大学 | The equally distributed high-gain lens antenna of bore face phase and amplitude |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4231043A (en) * | 1979-08-22 | 1980-10-28 | Bell Telephone Laboratories, Incorporated | Technique for reducing near-in sidelobes of an offset antenna |
| GB2171561B (en) * | 1985-02-24 | 1989-01-11 | Philips Electronic Associated | Antenna |
| US6163304A (en) * | 1999-03-16 | 2000-12-19 | Trw Inc. | Multimode, multi-step antenna feed horn |
| EP2469654B1 (en) * | 2010-12-21 | 2014-08-27 | Siemens Aktiengesellschaft | Horn antenna for a radar device |
| CN103367894B (en) * | 2013-07-04 | 2015-04-08 | 西安电子科技大学 | Holographic antenna used for directed radiation on surface of flight body |
| KR102125949B1 (en) * | 2015-07-17 | 2020-06-24 | 한국전자통신연구원 | Horn antenna apparatus |
| CN107039779A (en) * | 2017-04-13 | 2017-08-11 | 西安电子科技大学 | A kind of holographic antenna of one-way radiation |
-
2018
- 2018-11-15 CN CN201811361508.9A patent/CN109546353B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201503918U (en) * | 2009-09-25 | 2010-06-09 | 中国电子科技集团公司第十四研究所 | Horn antenna with constant wave-beam |
| CN106602274A (en) * | 2016-11-18 | 2017-04-26 | 电子科技大学 | Substrate integrated waveguide pyramid-contained horn antenna and design method thereof |
| CN107093802A (en) * | 2017-03-20 | 2017-08-25 | 东南大学 | The equally distributed high-gain lens antenna of bore face phase and amplitude |
Non-Patent Citations (1)
| Title |
|---|
| 喇叭天线方向图和增益的改进计算;王宏建;《航空兵器》;19970215(第1期);全文 * |
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Effective date of registration: 20240322 Address after: 3 Taihe Road, quantang, Liaobu Town, Dongguan City, Guangdong Province Patentee after: Dongguan huangjie Communication Technology Co.,Ltd. Country or region after: China Address before: 710065 Xi'an new hi tech Zone, Shaanxi, No. 86 Gaoxin Road, No. second, 1 units, 22 stories, 12202 rooms, 51, B block. Patentee before: XI'AN CREATION KEJI Co.,Ltd. Country or region before: China |
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