CN109638421A - A kind of arc-shaped holographic antenna - Google Patents
A kind of arc-shaped holographic antenna Download PDFInfo
- Publication number
- CN109638421A CN109638421A CN201811361517.8A CN201811361517A CN109638421A CN 109638421 A CN109638421 A CN 109638421A CN 201811361517 A CN201811361517 A CN 201811361517A CN 109638421 A CN109638421 A CN 109638421A
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- Prior art keywords
- loudspeaker
- holographic
- mouth
- component
- radiation
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- 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
- H01Q1/36—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
-
- 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
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- Aerials With Secondary Devices (AREA)
Abstract
The present invention relates to a kind of arc-shaped holographic antenna, the holographic antenna include: waveguide trumpet component 102 and with holographic structure component 104；The loudspeaker radiation mouth 1022 of the waveguide trumpet component 102 is convex arch.It can be improved the formation efficiency of antenna pattern and the radiation efficiency of electromagnetic wave using the embodiment of the present invention.
Description
Technical field
The invention belongs to antenna technical fields, and in particular to a kind of arc-shaped holographic antenna.
Background technique
With the development of antenna technology, holographic antenna comes into being.Compared to traditional reflector antenna, holographic antenna can
According to application environment and actual demand, by change holographic structure component to obtain required radiation characteristic, and without fixation
Contour structure, hiding are more preferable.
Currently, holographic antenna may include waveguide trumpet component and holographic structure component.Gone out by waveguide trumpet component radiation
Electromagnetic wave can pass through holographic structure component formed antenna pattern.
But since the distance that electromagnetic wave is propagated in waveguide trumpet component is different, it is possible to create phase difference, and then influence
The formation efficiency of antenna pattern and the radiation efficiency of electromagnetic wave.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the present invention provides a kind of arc-shaped holographic antennas.This
Technical problems to be solved by the inivention are achieved through the following technical solutions:
The embodiment of the invention provides a kind of arc-shaped holographic antennas, and the holographic antenna includes: waveguide trumpet component
102 and holographic structure component 104, wherein the loudspeaker radiation mouth 1022 of the waveguide trumpet component 102 is convex arch.
In one embodiment of the invention, the waveguide trumpet component 102 is the face H electromagnetic horn.
In one embodiment of the invention, the waveguide trumpet component 102 includes: rectangular waveguide feed chamber 1024 and loudspeaker
Radial chamber 1026, the rectangular waveguide feed chamber 1024 are connect with the loudspeaker neck mouth 1023 of the loudspeaker radiation chamber 1026.
In one embodiment of the invention, the open port 1025 and the loudspeaker of the rectangular waveguide feed chamber 1024
The loudspeaker neck mouth 1023 of radial chamber 1026 connects, section of the cross sectional shape of the open port 1025 and the loudspeaker neck mouth 1023
Face shape is identical.
In one embodiment of the invention, the corresponding center of circle of the dome arc is two of the loudspeaker radiation chamber 1026
The intersection point of the extended line of radiating side.
In one embodiment of the invention, the holographic structure component 104 includes: dielectric-slab 1042, the dielectric-slab
Metallic holographic striped 1044 is provided on 1042.
In one embodiment of the invention, tubaeform section of the dielectric-slab 1042 and the waveguide trumpet component 102
Face is perpendicular.
Compared with prior art, beneficial effects of the present invention:
The embodiment of the invention provides a kind of arc-shaped holographic antennas, specifically, holographic antenna may include waveguide loudspeaker
Component and holographic structure component, wherein the loudspeaker radiation mouth of the waveguide trumpet component is convex arch.In this way, electromagnetic wave
Into after waveguide trumpet component, no matter given off from the central part of loudspeaker radiation mouth, or from two edge of loudspeaker radiation mouth
Position gives off, and the distance that electromagnetic wave is propagated in waveguide trumpet component is essentially identical, therefore can reduce the phase difference of generation, into
And the adverse effect caused by reducing due to phase difference to the radiation efficiency of the formation efficiency and electromagnetic wave of antenna pattern, it can
To improve the formation efficiency of antenna pattern and the radiation efficiency of electromagnetic wave.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the arc-shaped holographic antenna of one kind provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of another arc-shaped holographic antenna provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the arc-shaped holographic antenna of another kind provided in an embodiment of the present invention.
Specific embodiment
Further detailed description is done to the present invention combined with specific embodiments below, but embodiments of the present invention are not limited to
This.
Embodiment one
Referring to Figure 1, Fig. 1 is the structural schematic diagram of the arc-shaped holographic antenna of one kind provided in an embodiment of the present invention.
As shown in Figure 1, holographic antenna includes: waveguide trumpet component 102 and holographic structure component 104, the waveguide trumpet
The loudspeaker radiation mouth 1022 of component 102 is convex arch.
Specifically, it includes rectangular waveguide feed chamber 1024 and loudspeaker spoke that the holographic antenna, which includes: waveguide trumpet component 102,
Chamber 1026 is penetrated, the rectangular waveguide feed chamber 1024 is connect with the loudspeaker neck mouth 1023 of the loudspeaker radiation chamber 1026, forms institute
State waveguide trumpet component 102.In waveguide trumpet component 102, the open port of 1026 side of loudspeaker radiation chamber is loudspeaker spoke
The open port of loophole 1022, connection rectangular waveguide feed chamber 1024 is loudspeaker neck mouth 1023.
It should be understood that as shown in Figure 1, in waveguide trumpet component 102, the bell mouth diameter size of loudspeaker radiation chamber 1026
It is gradually increased, electromagnetic wave enters waveguide trumpet component 102 from rectangular waveguide feed chamber 1024, if loudspeaker radiation mouth 1022 is
Traditional linear then gives off electromagnetic wave propagation distance from the central part of loudspeaker radiation mouth 1022 and is significantly less than from loudspeaker
The both sides position of radiation port 1022 gives off electromagnetic wave propagation distance, causes the phase difference of electromagnetic wave larger.
In practical applications, holographic antenna further includes holographic structure component 104, and holographic structure component 104 includes dielectric-slab
1042, and the metallic holographic striped 1044 being arranged on dielectric-slab 1042.The electromagnetic wave meeting projected from waveguide trumpet component 102
Surface wave is formed in dielectric-slab 1042, surface wave encounters the gold being arranged on dielectric-slab 1042 when propagating in dielectric-slab 1042
Belong to hologram fringe 1044, final antenna pattern can be formed with exciting radiation.And some biggish electromagnetic waves of phase difference are in quilt
After exciting radiation, it will not interfere in main radiation direction and be superimposed, distortion and electromagnetic wave so as to cause the antenna pattern of formation
The reduction of radiation efficiency.
And in holographic antenna provided in an embodiment of the present invention, by setting convex arch for loudspeaker radiation mouth 1022,
No matter electromagnetic wave gives off from the central part of loudspeaker radiation mouth 1022, or radiates from the both sides position of loudspeaker radiation mouth 1022
Out, the distance propagated is roughly the same, therefore can reduce the phase difference of generation, thus reduce antenna pattern distortion and
Adverse effect to electromagenetic wave radiation efficiency.
As it can be seen that no matter given off from the central part of loudspeaker radiation mouth after electromagnetic wave enters waveguide trumpet component, or from
The both sides position of loudspeaker radiation mouth gives off, and the distance that electromagnetic wave is propagated in waveguide trumpet component is roughly the same, therefore can be with
Reduce the phase difference generated, so reduce due to caused by phase difference to the formation efficiency of antenna pattern and the spoke of electromagnetic wave
The formation efficiency of antenna pattern and the radiation efficiency of electromagnetic wave can be improved in the adverse effect for penetrating efficiency.
Embodiment two
Fig. 2 is referred to, Fig. 2 is the structural schematic diagram of another arc-shaped holographic antenna provided in an embodiment of the present invention.
As depicted in figs. 1 and 2, the loudspeaker of the open port 1025 of the rectangular waveguide feed chamber 1024 and the loudspeaker radiation chamber 1026
Neck mouth 1023 connects, and the cross sectional shape of the open port 1025 is identical as the cross sectional shape of the loudspeaker neck mouth 1023.It is described
The lateral dimension of the cross sectional shape of loudspeaker radiation mouth 1022 is greater than the lateral dimension of the cross sectional shape of the loudspeaker neck mouth 1023, institute
State the cross sectional shape of loudspeaker radiation mouth 1022 longitudinal size be equal to the loudspeaker neck mouth 1023 cross sectional shape longitudinal size.
Specifically, loudspeaker radiation chamber 1026 is from the loudspeaker neck mouth 1023, both ends, which are prolonged, laterally to be gradually expanded, and forms loudspeaker
Radiation port 1022, therefore, the lateral dimension of the cross sectional shape of loudspeaker radiation mouth 1022 are much larger than the section of loudspeaker neck mouth 1023
The lateral dimension of shape, still, the longitudinal size of the cross sectional shape of loudspeaker radiation mouth 1022 and the section shape of loudspeaker neck mouth 1023
The longitudinal size of shape is identical.
As shown in Fig. 2, the corresponding center of circle of the convex arch is two radiating sides 10226 of the loudspeaker radiation chamber 1026
Extended line joint O.It is corresponding, the corresponding radius of circle of the convex arch be prolong from the center of circle O radiating side 10226 to
The distance of the loudspeaker radiation mouth 1022.
Specifically, the position in the corresponding center of circle of convex arch can be two radiation of loudspeaker radiation chamber 1026 in Fig. 2
The joint O of the extended line on side 10226, and the corresponding radius of circle of convex arch is to prolong loudspeaker radiation chamber 1026 from the center of circle O
Radiating side 10226, to the distance R of the loudspeaker radiation mouth 1022.It should be understood that in this way, no matter electromagnetic wave is from loudspeaker spoke
The central part of loophole 1022 gives off, or gives off from the both sides position of loudspeaker radiation mouth 1022, and electromagnetic wave is in waveguide loudspeaker
The distance propagated in component 102 is roughly the same, therefore can reduce the phase difference of generation, and then reduces and led due to phase difference
The adverse effect of the formation efficiency to antenna pattern caused.
In a kind of implementation, the waveguide trumpet component 102 is the face H electromagnetic horn.As shown in figure 3, Fig. 3 is the present invention
The structural schematic diagram of the arc-shaped holographic antenna of the another kind that embodiment provides, in Fig. 3, the holographic structure component 104 is wrapped
Include dielectric-slab 1042；Metallic holographic striped 1044 is provided on the dielectric-slab 1042.The dielectric-slab 1042 and the waveguide
The loudspeaker tee section of horn component 102 is perpendicular.
It should be noted that the waveguide trumpet component 102 in Fig. 3 is the longitudinal section of the waveguide trumpet component 102 in Fig. 1.
It should be understood that the waveguide trumpet component 102 in Fig. 3 is to be disposed vertically in the horizontal plane, and holographic structure
Component 104 is parallel to horizontal plane.
Specifically, in practical applications, waveguide trumpet component 102 can be the face H electromagnetic horn.Holographic structure component 104
It may include dielectric-slab 1042, and be provided with metallic holographic striped 1044 on the dielectric-slab 1042.It is radiated by the face H electromagnetic horn
Electromagnetic wave out can form surface wave in dielectric-slab 1042, and surface wave encounters when propagating in dielectric-slab 1042 to be arranged in medium
Metallic holographic striped 1044 on plate 1042 can form final antenna pattern with exciting radiation.
It should be noted that since the face H electromagnetic horn can be by the energy compression of electromagnetic wave to perpendicular with loudspeaker tee section
Plane on, therefore, in order to keep the electromagnetic wave given off by the face H electromagnetic horn as much as possible enterprising in dielectric-slab 1042
Row is propagated, and dielectric-slab 1042 can be placed in the plane perpendicular with the loudspeaker tee section of the waveguide trumpet component 102,
It can specifically be realized by bracket.In this way, the electromagnetic wave given off by the face H electromagnetic horn can be enterprising in dielectric-slab 1042
Row is propagated, and antenna pattern is ultimately formed.
As it can be seen that no matter given off from the central part of loudspeaker radiation mouth after electromagnetic wave enters the face H electromagnetic horn, or from
The both sides position of loudspeaker radiation mouth gives off, and the distance that electromagnetic wave is propagated in the electromagnetic horn of the face H is roughly the same, therefore can drop
The raw phase difference of low yield, and then the radiation caused by reducing due to phase difference to the formation efficiency and electromagnetic wave of antenna pattern
The formation efficiency of antenna pattern and the radiation efficiency of electromagnetic wave can be improved in the adverse effect of efficiency.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (7)
1. a kind of holographic antenna, which is characterized in that the holographic antenna includes: waveguide trumpet component 102 and holographic structure component
104, wherein
The loudspeaker radiation mouth 1022 of the waveguide trumpet component 102 is convex arch.
2. holographic antenna according to claim 1, which is characterized in that
The waveguide trumpet component 102 is the face H electromagnetic horn.
3. holographic antenna according to claim 2, which is characterized in that the waveguide trumpet component 102 includes: rectangular waveguide
Feed chamber 1024 and loudspeaker radiation chamber 1026, the horn throat of rectangular waveguide the feed chamber 1024 and the loudspeaker radiation chamber 1026
Mouth 1023 connects.
4. holographic antenna according to claim 3, which is characterized in that
The open port 1025 of the rectangular waveguide feed chamber 1024 and the loudspeaker neck mouth 1023 of the loudspeaker radiation chamber 1026 connect
It connects, the cross sectional shape of the open port 1025 is identical as the cross sectional shape of the loudspeaker neck mouth 1023；
The lateral dimension of the cross sectional shape of the loudspeaker radiation mouth 1022 is greater than the cross of the cross sectional shape of the loudspeaker neck mouth 1023
To size, the longitudinal size of the cross sectional shape of the loudspeaker radiation mouth 1022 is equal to the cross sectional shape of the loudspeaker neck mouth 1023
Longitudinal size.
5. holographic antenna according to claim 2, which is characterized in that
The corresponding center of circle of the dome arc is the intersection point of the extended line of two radiating sides of the loudspeaker radiation chamber 1026.
6. holographic antenna according to claim 1, which is characterized in that the holographic structure component 104 includes: dielectric-slab
1042, metallic holographic striped 1044 is provided on the dielectric-slab 1042.
7. holographic antenna according to claim 6, which is characterized in that
The loudspeaker tee section of the dielectric-slab 1042 and the waveguide trumpet component 102 is perpendicular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811361517.8A CN109638421A (en) | 2018-11-15 | 2018-11-15 | A kind of arc-shaped holographic antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811361517.8A CN109638421A (en) | 2018-11-15 | 2018-11-15 | A kind of arc-shaped holographic antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109638421A true CN109638421A (en) | 2019-04-16 |
Family
ID=66068102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811361517.8A Pending CN109638421A (en) | 2018-11-15 | 2018-11-15 | A kind of arc-shaped holographic antenna |
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| Country | Link |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2171561A (en) * | 1985-02-24 | 1986-08-28 | Philips Electronic Associated | Antenna |
| US4667205A (en) * | 1983-02-22 | 1987-05-19 | Thomson-Csf | Wideband microwave antenna with two coupled sectoral horns and power dividers |
| US20070188850A1 (en) * | 2004-08-18 | 2007-08-16 | National Chiao Tung University | Solar-pumped active device |
| 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 |
| CN103367894A (en) * | 2013-07-04 | 2013-10-23 | 西安电子科技大学 | Holographic antenna used for directed radiation on surface of flight body |
| CN103956568A (en) * | 2014-05-22 | 2014-07-30 | 西安空间无线电技术研究所 | Box-shaped fan-beam antenna |
| CN204947076U (en) * | 2015-09-24 | 2016-01-06 | 杭州广脉科技有限公司 | A kind of convenient ceiling type AP installed |
-
2018
- 2018-11-15 CN CN201811361517.8A patent/CN109638421A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4667205A (en) * | 1983-02-22 | 1987-05-19 | Thomson-Csf | Wideband microwave antenna with two coupled sectoral horns and power dividers |
| GB2171561A (en) * | 1985-02-24 | 1986-08-28 | Philips Electronic Associated | Antenna |
| US20070188850A1 (en) * | 2004-08-18 | 2007-08-16 | National Chiao Tung University | Solar-pumped active device |
| 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 |
| CN103367894A (en) * | 2013-07-04 | 2013-10-23 | 西安电子科技大学 | Holographic antenna used for directed radiation on surface of flight body |
| CN103956568A (en) * | 2014-05-22 | 2014-07-30 | 西安空间无线电技术研究所 | Box-shaped fan-beam antenna |
| CN204947076U (en) * | 2015-09-24 | 2016-01-06 | 杭州广脉科技有限公司 | A kind of convenient ceiling type AP installed |
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Application publication date: 20190416 |
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| RJ01 | Rejection of invention patent application after publication |