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CN109411870A - A kind of parabolic antenna feed source of double frequency shared - Google Patents

A kind of parabolic antenna feed source of double frequency shared Download PDF

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Publication number
CN109411870A
CN109411870A CN201811288004.9A CN201811288004A CN109411870A CN 109411870 A CN109411870 A CN 109411870A CN 201811288004 A CN201811288004 A CN 201811288004A CN 109411870 A CN109411870 A CN 109411870A
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dielectric
circular waveguide
dual
antenna feed
frequency
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CN201811288004.9A
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Chinese (zh)
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CN109411870B (en
Inventor
戴用
陈志兴
林锦祥
胡奇辉
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Guangdong Shenglu Communication Co ltd
Guangdong Shenglu Telecommunication Tech Co Ltd
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Guangdong Shenglu Telecommunication Tech Co Ltd
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • 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
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/0006—Particular feeding systems

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  • Aerials With Secondary Devices (AREA)
  • Waveguide Aerials (AREA)

Abstract

本发明公开一种双频共用的抛物面天线馈源，其特征在于，包括：圆波导管、介质杆、辐射喇叭、介质支撑结构、副反射表面、反射表面，其中所述圆波导管、介质杆、副反射表面组成介质杆天线馈源类型，所述圆波导管、辐射喇叭、介质支撑结构、副反射表面组成环焦天线馈源类型，其中介质杆天线类型辐射是高频段，环焦天线类型辐射是低频段，两种辐射类型共用同一个反射表面。本发明通过采用介质杆天线馈源与环焦天线馈源合二为一的设计方式，独立对应不同的频段工作，两者之间共用同一反射表面，同一个天线结构主体，可以同时应用多个频段。

The invention discloses a dual-frequency shared parabolic antenna feed, which is characterized by comprising: a circular waveguide, a dielectric rod, a radiation horn, a dielectric support structure, a secondary reflection surface, and a reflection surface, wherein the circular waveguide, the dielectric rod , The sub-reflection surface constitutes the feed type of the dielectric rod antenna, the circular waveguide, the radiation horn, the dielectric support structure and the sub-reflection surface constitute the feed type of the ring focus antenna, wherein the radiation of the dielectric rod antenna type is high frequency band, and the type of the ring focus antenna Radiation is a low frequency band, and both radiation types share the same reflective surface. The present invention adopts the design method of combining the dielectric rod antenna feed source and the ring focus antenna feed source to work independently in different frequency bands. frequency band.

Description

A kind of parabolic antenna feed source of double frequency shared
Technical field
The present invention relates to communication antenna equipment technical field more particularly to a kind of parabolic antenna feed sources of double frequency shared.
Background technique
Parabola antenna is one of antenna type earliest in the antenna-feeder system of the communications field.Parabola antenna will be located at focus The electromagnetic wave that feed is emitted reflects towards front and keeps same phase, to form high directivity wave beam, or by parallel beam Converge at focus.High directivity is its most significant feature, therefore is often applied to high-gain occasion, as radio astronomy is looked in the distance Mirror, satellite earth receiving station, fire control radar, microwave relay transmission etc..In numerous applications, microwave relay transmission is current parabolic The most frequently used surface antenna is also the application most concentrated.Parabola antenna, which is substantially, is mounted on the high empty positions such as steel tower, high roof.Mesh The preceding development with communication system, website arrangement is more and more intensive, the installation site resource of antenna be also it is more and more nervous, it is identical Installation space, can arrange that more antennas can either utilize more frequency spectrum resources, be that research and develop at present one is important Direction.The wherein same antenna structure main body can be simultaneously a kind of now more commonly used means using multiple frequency ranges.
Summary of the invention
In view of the deficiencies in the prior art, simple, at low cost, performance that the purpose of the present invention is to provide a kind of structures The parabolic antenna feed source of double frequency shared easy to accomplish.
To achieve the above objectives, the present invention adopts the following technical scheme that.
A kind of parabolic antenna feed source of double frequency shared characterized by comprising
Circular waveguide tube, dielectric rod, radiating horn, dielectric support structure, secondary reflecting surface, reflecting surface, wherein the circular waveguide Pipe, dielectric rod, secondary reflecting surface form dielectric rod antenna feed type, the circular waveguide tube, radiating horn, dielectric support knot Structure, secondary reflecting surface form ring-focus antenna feed type, the dielectric rod antenna feed type and ring-focus antenna feed type group At radiant section, wherein dielectric rod antenna type of radiation is high band, and ring-focus antenna type of radiation is low-frequency range, two kinds of radiation classes Type shares the same reflecting surface, and reflecting surface is connected with dielectric support structure, and the circular waveguide tube of high band is nested in low-frequency range Circular waveguide tube inside, two circular waveguides are concentric.
As a further illustration of the above scheme, the size selection of the circular waveguide tube, it is ensured that it is in working frequency range The main mould of propagation is TE11 mould.
Further, the dielectric rod is EH11 mould in the main mould that working frequency range is propagated.
Further, the selection of material of the dielectric rod is loss and dielectric constant is lower, is easily worked, is cheap Material, such as polytetrafluoroethylene (PTFE), polyethylene, polystyrene, polyamide/polyimides, cyanate.
Further, the dielectric rod is inserted partially into circular waveguide tube, and pipe inner part is to adjust feed standing wave, and pipe is outer Part uses gradually smaller structure to guarantee the wave propagated in dielectric rod for pure traveling wave.It is that high band does energy guiding function.
Further, the radiating horn is that the metal plating for doing part on the surface of dielectric support structure is formed.
Further, the material that the dielectric support structure is selected is loss and dielectric constant is lower, is easily worked, valence The cheap material of lattice also has the function of adjusting phase and standing wave other than supporting the effect of secondary reflecting surface.
Further, the dielectric support structure includes the interior cylindrical dielectric matching section in axial direction set gradually, pipe Outer cone working medium radiation body, interior cylindrical dielectric matching section insertion circular waveguide tube are interior to realize impedance matching；Pipe outer cone medium spoke The inner hollow of beam forms dielectric wall, its inside is cavity, and structure is the knot that smooth table wall either carries out geometry figuration Phase and primary pattern can be adjusted in structure, structure.
Further, the secondary reflecting surface is laid on the inner wall and/or outer wall of circular waveguide tube.
Further, the surface of the reflecting surface is by the structure of geometry figuration, and mainly control energy is reflected into throwing On the primary reflection surface of object plane antenna.
The beneficial effects of the present invention are:
1, the design method being combined into one using dielectric rod antenna feed and ring-focus antenna feed, independent corresponding different frequency Section work, shares same reflection surface between the two, and the same antenna structure main body can apply multiple frequency ranges simultaneously.
2, the span line of two frequency ranges, is transmitted using circular waveguide tube, and the circular waveguide tube of high band is nested in low-frequency range Circular waveguide tube inside, the two is concentric, by can independently carry out between the transmission of this two frequency ranges of structure.
Detailed description of the invention
Fig. 1 show the outside drawing of the parabolic antenna feed source of double frequency shared.
Fig. 2 show the sectional view of the parabolic antenna feed source of double frequency shared.
Fig. 3 show the structural schematic diagram of dielectric rod antenna feed type.
Fig. 4 show the structural schematic diagram of ring-focus antenna feed type.
Fig. 5 show the S parameter figure of two frequency ranges of 15GHz&80GHz Double frequency feed source.
Fig. 6 show the feed antenna pattern of two frequency ranges of 15GHz&80GHz Double frequency feed source.
Description of symbols:
1: circular waveguide tube, 2: dielectric rod, 3: radiating horn, 4: dielectric support structure, 4-1: interior cylindrical dielectric matching section, 4- 2: pipe outer cone working medium radiation body, 5: secondary reflecting surface, 6: reflecting surface.
Specific embodiment
Essence of the invention is more fully understood for convenience of those skilled in the art, with reference to the accompanying drawing to specific reality of the invention The mode of applying is described in detail.
As Figure 1-Figure 2, a kind of parabolic antenna feed source of double frequency shared, comprising: circular waveguide tube 1, dielectric rod 2, spoke Loudspeaker 3, dielectric support structure 4, secondary reflecting surface 5, reflecting surface 6 are penetrated, wherein the circular waveguide tube 1, dielectric rod 2, secondary reflection Surface 5 forms dielectric rod antenna feed type, the circular waveguide tube 1, radiating horn 3, dielectric support structure 4, secondary reflecting surface 5 Ring-focus antenna feed type is formed, the dielectric rod antenna feed type and ring-focus antenna feed type form radiant section, Middle dielectric rod antenna type of radiation is high band, and ring-focus antenna type of radiation is low-frequency range, and two kinds of emission types share same Reflecting surface 6, reflecting surface 6 are connected with dielectric support structure 4, and the circular waveguide tube 1 of high band is nested in the circular waveguide of low-frequency range 1 the inside of pipe, two circular waveguides are concentric.
As shown in figure 3, the dielectric rod antenna feed type is made of circular waveguide tube 1, dielectric rod 2, secondary reflecting surface 5, Wherein dielectric rod 2 is that high band does energy guiding function, it is inserted partially into circular waveguide tube 1, and pipe inner part is to adjust feedback Source standing wave, pipe outer portion use gradually smaller structure to guarantee the wave propagated in dielectric rod 2 for pure traveling wave.
As shown in figure 4, the ring-focus antenna feed type is by circular waveguide tube 1, radiating horn 3, dielectric support structure 4, pair Reflecting surface 5 forms, wherein the dielectric support structure 4 includes the interior cylindrical dielectric matching section 4- in axial direction set gradually 1, pipe outer cone working medium radiation body 4-2, interior cylindrical dielectric matching section 4-1 insertion circular waveguide tube 1 are interior to realize impedance matching；Pipe is outer The inner hollow of circular cone working medium radiation body 4-2 forms dielectric wall, its inside is cavity, and structure is that smooth table wall either carries out Phase and primary pattern can be adjusted in the structure of geometry figuration, structure；The radiating horn 3 is in dielectric support structure The metal plating that part is done on 4 surface is formed.
It is the electrical property number that this programme is applied to 14.4GHz~15.35GHz and 71GHz~86GHz as shown in Fig. 5-Fig. 6 According to the reflection coefficient of two frequency ranges | S11 | -14dB or less can be met.In addition, entirely there is good width with interior directional diagram Spend flatness, lesser secondary lobe and back lobe and very high gain efficiency.
When specific works, the electric signal for being achieved in that low-frequency range of entire feed scheme is incoming from circular waveguide tube, circle wave The structure of similar axis is constituted between conduit and circular waveguide tube, energy transmits between two circular waveguide tube walls.Signal reaches radiation It is radiated, and is radiated on reflecting surface after loudspeaker, is reflected on the primary reflection surface of parabola antenna through reflecting surface；High frequency The electric signal of section is incoming from circular waveguide tube, after reaching dielectric rod, guides through dielectric rod, is radiated by the other end, energy is radiated instead It after reflective surface, is reflected on primary reflection surface, realizes the same antenna structure main body, multiple frequency ranges can be applied simultaneously.
The above specific embodiment is described in detail for the essence of the present invention, but can not be come with this to of the invention Protection scope is limited.It should be evident that under the inspiration of the present invention, those of ordinary skill in the art can also carry out Many improvement and modification, it should be noted that these improvement and modification are all fallen within the scope of the claims of the present invention.

Claims (10)

1.一种双频共用的抛物面天线馈源，其特征在于，包括：圆波导管、介质杆、辐射喇叭、介质支撑结构、副反射表面、反射表面，所述圆波导管、介质杆、副反射表面组成介质杆天线馈源类型，所述圆波导管、辐射喇叭、介质支撑结构、副反射表面组成环焦天线馈源类型，所述介质杆天线馈源类型和环焦天线馈源类型组成辐射部分，介质杆天线类型辐射是高频段，环焦天线类型辐射是低频段，两种辐射类型共用同一个反射表面，反射表面与介质支撑结构相连，高频段的圆波导管嵌套在低频段的圆波导管里面，两圆波导同心。1. a dual-frequency shared parabolic antenna feed is characterized in that, comprising: a circular waveguide, a dielectric rod, a radiation horn, a dielectric support structure, a secondary reflection surface, a reflective surface, the circular waveguide, the dielectric rod, the secondary The reflective surface forms the feed type of the dielectric rod antenna, the circular waveguide, the radiating horn, the dielectric support structure, and the sub-reflection surface form the feed type of the ring focus antenna, and the feed type of the dielectric rod antenna and the feed type of the ring focus antenna form The radiation part, the dielectric rod antenna type radiation is high frequency, the ring focus antenna type radiation is low frequency, the two radiation types share the same reflective surface, the reflective surface is connected to the dielectric support structure, the high frequency circular waveguide is nested in the low frequency Inside the circular waveguide, the two circular waveguides are concentric. 2.根据权利要求1所述的一种双频共用的抛物面天线馈源，其特征在于，所述圆波导管选择的尺寸在工作频段内传播的主模为TE11模。2 . The dual-frequency shared parabolic antenna feed according to claim 1 , wherein the main mode of the circular waveguide with the selected size propagating in the working frequency band is the TE11 mode. 3 . 3.根据权利要求1所述的一种双频共用的抛物面天线馈源，其特征在于，所述介质杆在工作频段传播的主模为EH11模。3 . The dual-frequency shared parabolic antenna feed according to claim 1 , wherein the main mode propagated by the dielectric rod in the working frequency band is the EH11 mode. 4 . 4.根据权利要求1所述的一种双频共用的抛物面天线馈源，其特征在于，所述介质杆的选用材料为损耗和介电常数εr较低的材料，如聚四氟乙烯、聚乙烯、聚苯乙烯、聚酰胺/聚酰亚胺、氰酸酯。4. a kind of dual-frequency shared parabolic antenna feed source according to claim 1, is characterized in that, the material selected for described dielectric rod is the material with lower loss and dielectric constant εr, such as polytetrafluoroethylene, polytetrafluoroethylene, polytetrafluoroethylene Ethylene, polystyrene, polyamide/polyimide, cyanate ester. 5.根据权利要求1所述的一种双频共用的抛物面天线馈源，其特征在于，所述介质杆部分插入到圆波导管中。5 . The dual-frequency shared parabolic antenna feed according to claim 1 , wherein the dielectric rod is partially inserted into the circular waveguide. 6 . 6.根据权利要求1所述的一种双频共用的抛物面天线馈源，其特征在于，所述辐射喇叭是在介质支撑结构的表面做部分的金属电镀形成。6 . The dual-frequency shared parabolic antenna feed according to claim 1 , wherein the radiating horn is formed by partial metal plating on the surface of the dielectric support structure. 7 . 7.根据权利要求1所述的一种双频共用的抛物面天线馈源，其特征在于，所述介质支撑结构选用的材料为损耗和介电常数εr较低的材料，如聚四氟乙烯、聚乙烯、聚苯乙烯、聚酰胺/聚酰亚胺、氰酸酯。7. The parabolic antenna feed source shared by a dual frequency according to claim 1, wherein the material selected for the dielectric support structure is a material with lower loss and dielectric constant εr, such as polytetrafluoroethylene, Polyethylene, polystyrene, polyamide/polyimide, cyanate ester. 8.根据权利要求1所述的一种双频共用的抛物面天线馈源，其特征在于，所述介质支撑结构包括沿轴向方向依次设置的内圆柱介质匹配段、管外圆锥介质辐射体，内圆柱介质匹配段插入圆波导管内；管外圆锥介质辐射体的内部中空形成介质壁，它的内部是空腔，结构是光滑表壁或者是进行几何赋形的结构。8 . The dual-frequency shared parabolic antenna feed according to claim 1 , wherein the dielectric support structure comprises an inner cylindrical dielectric matching section and an outer conical dielectric radiator arranged in sequence along the axial direction, 9 . The inner cylindrical dielectric matching section is inserted into the circular waveguide; the inner hollow of the conical dielectric radiator outside the tube forms a dielectric wall, and its interior is a cavity, and the structure is a smooth surface wall or a geometrically shaped structure. 9.根据权利要求1所述的一种双频共用的抛物面天线馈源，其特征在于，所述反射表面的表面是由几何赋形的结构。9 . The dual-frequency shared parabolic antenna feed according to claim 1 , wherein the surface of the reflecting surface is a geometrically shaped structure. 10 . 10.根据权利要求1所述的一种双频共用的抛物面天线馈源，其特征在于，所述副反射表面敷设在圆波导管的内壁和/或外壁。10 . The dual-frequency shared parabolic antenna feed according to claim 1 , wherein the sub-reflection surface is laid on the inner wall and/or the outer wall of the circular waveguide. 11 .
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CN112490674A (en) * 2020-11-06 2021-03-12 电子科技大学 Low-focal-diameter-ratio reflector antenna with sub-reflector based on double-frequency feed source feed
WO2022104741A1 (en) * 2020-11-20 2022-05-27 华为技术有限公司 Dual-frequency feed source and dual-frequency antenna
CN116646717A (en) * 2023-07-13 2023-08-25 西安电子科技大学 An inverted umbrella conformal antenna with both deceleration and communication properties
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112490674A (en) * 2020-11-06 2021-03-12 电子科技大学 Low-focal-diameter-ratio reflector antenna with sub-reflector based on double-frequency feed source feed
WO2022104741A1 (en) * 2020-11-20 2022-05-27 华为技术有限公司 Dual-frequency feed source and dual-frequency antenna
EP4231457A4 (en) * 2020-11-20 2023-12-13 Huawei Technologies Co., Ltd. Dual-frequency feed source and dual-frequency antenna
RU2824056C1 (en) * 2020-11-20 2024-08-01 Хуавей Текнолоджиз Ко., Лтд. Dual-band feed and dual-band antenna
CN116646717A (en) * 2023-07-13 2023-08-25 西安电子科技大学 An inverted umbrella conformal antenna with both deceleration and communication properties

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