CN117497997A - C-band broadband embedded omnidirectional antenna - Google Patents
C-band broadband embedded omnidirectional antenna Download PDFInfo
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- CN117497997A CN117497997A CN202311503874.4A CN202311503874A CN117497997A CN 117497997 A CN117497997 A CN 117497997A CN 202311503874 A CN202311503874 A CN 202311503874A CN 117497997 A CN117497997 A CN 117497997A
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- 239000002184 metal Substances 0.000 claims abstract description 72
- 239000007787 solid Substances 0.000 claims abstract description 30
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 239000004020 conductor Substances 0.000 claims description 17
- 229910001369 Brass Inorganic materials 0.000 claims description 7
- 239000010951 brass Substances 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 5
- 239000011152 fibreglass Substances 0.000 claims description 4
- 230000005855 radiation Effects 0.000 abstract description 15
- 238000009434 installation Methods 0.000 abstract description 7
- 238000012545 processing Methods 0.000 abstract description 3
- 238000004891 communication Methods 0.000 description 15
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000010287 polarization Effects 0.000 description 5
- 239000000969 carrier Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- -1 aircrafts Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005404 monopole Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/28—Adaptation for use in or on aircraft, missiles, satellites, or balloons
-
- 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
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
-
- 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
Abstract
The invention discloses a C-band broadband embedded omnidirectional antenna, which comprises a metal conical spiral radiator (3), a solid cone (4) internally penetrating a connector, a cylindrical metal cavity (5), a coaxial feed connector (6) inserted into an antenna structure and an antenna housing (7); the solid cone (4) is arranged in the cylindrical metal cavity (5), the metal cone spiral radiator (3) is arranged on the outer wall of the solid cone (4), and the antenna housing (7) is covered on the top opening of the cylindrical metal cavity (5); the coaxial feed connector (6) is fixed at the bottom of the cylindrical metal cavity (5) and penetrates through the solid cone (4) and the metal cone spiral radiator (3). The invention has good omnidirectional radiation characteristic, light weight, simple structure, easy processing and easy installation.
Description
Technical Field
The invention belongs to the technical field of microwave antennas, and relates to a C-band broadband embedded omnidirectional antenna which has a stable and reliable structure, can be fully embedded into the surface of an aircraft or the unobtrusive surface at the top of a vehicle, has good performance and is mainly used in civil and military communication systems.
Background
In radio communication systems, antennas are an indispensable important component that converts radio waves in free space and wave-guide electromagnetic waves to each other, thereby achieving a transition between free space and wave-guide devices in a transmitting system, and thus, in any radio system, antennas take on important roles, and once leaving the antennas that take on the functions of transmitting electromagnetic waves and receiving, the radio communication system will not continue to operate.
The microwave omnidirectional antenna is widely applied to one-point multiple access communication and widely applied to the fields of military, aerospace, remote control and telemetry. With the development of scientific technology, the running speed of carriers such as aircrafts, vehicles and the like is faster and faster, and the omni-directional antenna matched with the carriers is developed from the original protruding type to the conformal and stealth and embedded directions. The antenna matched with the carriers such as aircrafts, vehicles and the like not only needs to meet the electrical performance of the system, but also has higher reliability, does not increase pneumatic resistance, and has the electrical performance which is not reduced under the conditions of sand dust, salt mist and the like, and the antenna is required to be light in weight, small in size and low in profile.
In a lower frequency band, the microwave omnidirectional antenna mainly comprises a spiral antenna, a cross feed antenna and a waveguide slot antenna; with the development of modern communication technology, the development of communication frequency to higher wave bands is a necessary trend, and in the frequency band of C wave band (3.95-5.85 GHz) or higher, the wavelength is very short, and the above-mentioned antenna has high processing cost and difficult debugging due to complex structure, and the feed structure is also difficult to design, so that the bandwidth of the antenna is narrower; meanwhile, the heights of the types of antennas exceed half wavelength or quarter wavelength, the occupied volume space is large due to the fact that the heights of the antennas are too large, the RCS (radar cross section) of the antennas is also large, and the electromagnetic stealth characteristics of various carrier platforms are also greatly affected.
Referring to fig. 1, a conventional omni-directional antenna employs a discone antenna including a discone antenna conductor disc 1 and a discone antenna conductor cone 2.
In a general sense, the conventional omni-directional antenna mainly has the following technical problems:
(1) The antenna cannot be embedded into the aircraft or vehicle housing, and is large in size and fragile. The traditional omnidirectional antenna is simple and convenient to install, but the antenna needs to be completely protruded outside an aircraft or vehicle carrier, the structure is very unstable, when the carrier speed is high or the environmental wind speed is high, the resistance of the antenna is high, the antenna is very easy to break, the antenna is inconvenient to manufacture, install, transport, conceal and the like, the antenna is not suitable for special application occasions with complex environments, and the motor operation capacity of the carrier is reduced due to an excessive antenna structure for a military antenna.
(2) The antenna needs a matching circuit or components to be loaded, so that the loss is large and the cost is high. In order to meet the broadband requirement of the omni-directional antenna, the conventional antenna adopts modes of adding a matching network, adding a load and the like to improve the narrow frequency characteristic, and the measures widen the antenna band, but complicate the structure of the antenna and bring more loss and excessive cost.
In view of the foregoing, it is desirable to develop a broadband buried omni-directional antenna form for practical C-band residential and military communication platforms that provides more desirable electromagnetic and structural characteristics than existing antenna designs.
An embedded antenna is a special antenna form, which means that the shape of the antenna is completely embedded into the interior of the carrier, an antenna which can conform to the outer surface of the carrier, i.e. the surface shape of the antenna is determined by the aerodynamic or functional shape of the carrier, and not by the electromagnetic shape of the antenna. A typical communication antenna is a vertically polarized antenna, requiring an omni-directional pattern in the horizontal plane. Because the use environment of the aircraft and the vehicle-mounted communication equipment is bad, the vehicle-mounted antenna adopts an embedded design, and the reliability of the equipment in a complex environment can be ensured.
Disclosure of Invention
Object of the invention
The purpose of the invention is that: the C-band broadband embedded omnidirectional antenna overcomes the defects and defects in the prior art, and solves the problems that a traditional omnidirectional antenna cannot be embedded into an aircraft or a vehicle shell, is large in size and easy to damage, needs to load a matching circuit or components, is high in loss, is high in cost and the like.
(II) technical scheme
In order to solve the technical problems, the invention provides a C-band broadband embedded omnidirectional antenna which is used for transmitting and receiving vertical polarized electromagnetic waves, has a simple structure, and the whole antenna is only composed of metal brass and glass fiber reinforced plastic, and is easy to process and manufacture, light in weight and low in cost; the antenna is of an embedded structure, can be completely embedded into an aircraft or a vehicle for installation, is convenient to be conformal with a carrier, is not easy to damage, and does not increase the size of equipment additionally; the antenna cylindrical metal cavity is an integrated solid cone, which can be understood as the lower half part of a discone antenna, the connector is penetrated internally, the surface of the round table is a metal cone spiral radiator with a certain distance, the top of the radiator is connected with the inner core of the connector through welding spots, the connector and the cavity are assembled at the bottom of the antenna through screws, and the overall structure is stable; the antenna is easy to match, can be directly fed by using a 50 omega coaxial line, and can meet the requirements of an aircraft and a vehicle communication system in a C wave band; the whole antenna has a simple structure, no matching circuit or component is loaded, so that the consistency of the antenna is good, and the mass production of the antenna is facilitated; the radiation field of the antenna is uniformly distributed in the 360-degree range of the horizontal plane, and good omnidirectional characteristic can be realized.
The antenna cylindrical metal cavity is an integrated solid cone, which can be understood as the lower half of the discone antenna. The discone antenna is composed of a conductor disk and a conductor cone, and can be regarded as that one cone of the limited bicone antenna is formed by replacing evolution of a disk-shaped ground, the disk is connected with an inner conductor of a feed coaxial line, and the cone is connected with an outer conductor of the coaxial line. The discone antenna has simple structure, good broadband characteristic, vertical linear polarization, omnidirectional radiation in the horizontal plane and horizontal maximum radiation direction. In the cylindrical metal cavity of the invention, a conical spiral radiator is used for replacing a disc at the top of a traditional discone antenna. The spiral antenna is widely applied to various fields such as aerospace, weather, positioning, relay and the like according to the characteristics of gentle characteristic impedance, superior end-fire and side-fire performances and the like. The invention adopts the small conical spiral antenna with constant pitch, and the working principle of the small conical spiral antenna is the same as that of the cylindrical spiral antenna, but the frequency band is wider. This is because in a certain frequency range, the conical helical antenna mainly works by virtue of a certain set of coils thereof, the contribution of the remaining coils to the radiation is weak, and as the frequency changes, these effective coils, which are mainly responsible for the radiation, move along the helical axis. The maximum radiation direction of the small conical spiral antenna is perpendicular to the axis of the spiral line, the small conical spiral antenna is a conical spiral line formed by a section of metal wire along a conical surface, when the winding length of the mode spiral antenna is approximately equal to the height of the monopole antenna, the small conical spiral antenna has similar electric characteristics to the monopole antenna, and therefore the polarization mode of the small conical spiral antenna is perpendicular, and is not the circular polarization mode of a common spiral antenna.
Specifically, the C-band broadband embedded omnidirectional antenna is composed of a metal conical spiral radiator, a solid cone of an internal penetrating connector, a cylindrical metal cavity, a coaxial feed connector inserted into an antenna structure and an antenna housing; the metal conical spiral radiator is welded with the inner core of the coaxial connector, and the metal radiator is made of brass; the inside of the cylindrical metal cavity is hollowed, the inside of the cavity is provided with a solid cone which is integrally processed, a through hole is arranged in the middle of the solid cone, the diameter of the through hole is consistent with that of a nonmetallic medium part of the connector, the connector is connected with the bottom of the cylindrical metal cavity in a penetrating way from bottom to top, a through hole is arranged on a mounting plate at the edge of the cylindrical metal cavity and is used for being connected with a mounting carrier and an antenna housing through screws, and the cylindrical metal cavity is made of brass; the antenna housing is a circular dielectric sheet and is screwed on the mounting plate at the edge of the cylindrical metal cavity through the screw, so that other structural members of the antenna and the antenna housing form a whole, the antenna housing is made of glass fiber reinforced plastic, and the antenna housing is firm and durable, has good wave transmittance and can ensure efficient receiving and transmitting of communication signals; the antenna adopts an N-type coaxial connector for connection feed, the connector adopts N-50KFD2 of Shanxi Huada technology Co., ltd, and is characterized in that the extended coaxial inner core and the medium part are longer (the inner core is 12.6mm, the medium part is 8.6 mm), the extended coaxial inner core and the medium part can penetrate through the bottom of a cylindrical metal cavity and a solid cone integrally processed with the cylindrical metal cavity, the top of the coaxial inner core of the connector is welded and connected with a metal cone spiral radiator, and the flange of the connector is connected with the bottom of the cylindrical metal cavity through a screw; the energy output by the coaxial connector is fed from the feed end, so that the surface current of the metal conical spiral radiator is excited, and radiation is generated.
The invention adopts the embedded structure, can be completely embedded into an aircraft or a vehicle for installation, is convenient for conformal with a carrier, is not easy to damage, and does not additionally increase the equipment size; because the cylindrical metal cavity adopts the basic structure of the solid cone at the lower half part of the discone antenna and the metal cone spiral radiator, the antenna can receive or emit vertical polarized electromagnetic waves and has wider bandwidth, and the polarization and bandwidth requirements of the antenna in the C frequency band are met; due to the axisymmetric characteristic of the whole antenna structure, the antenna can uniformly distribute radiation fields within the 360-degree range of the horizontal plane; because the whole antenna is provided with only one welding spot and has no other adhesion devices, the consistency of the antenna is good, and the mass production of the antenna is convenient; in addition, the frequency of the antenna can be changed by adjusting the antenna size and other proportions according to the use requirement, and the whole antenna structure and the application occasion are flexible.
The antenna has the advantages of lower voltage standing wave ratio, higher gain and wider bandwidth, can be completely embedded into an aircraft or a vehicle for installation, does not damage the mechanical structure and strength of the surface of communication equipment, has good omnidirectional radiation characteristic, has light weight, simple structure, easy processing and easy installation, and has important significance for application in civil and military communication fields.
(III) beneficial effects
The C-band broadband embedded omnidirectional antenna provided by the technical scheme has the following beneficial effects:
(1) The antenna can be completely embedded into an aircraft or a vehicle for installation, is convenient to be conformal with a carrier, is not easy to damage, and does not increase the equipment size additionally;
(2) The antenna feed mode is simple, impedance matching is easy to obtain, loading is not needed, a matching circuit or a balance converter is not needed, and physical limitation between the antenna and the radio frequency circuit is avoided;
(3) The antenna bandwidth is wider, the gain and the efficiency are relatively higher, and the high-efficiency operation of the communication equipment can be kept.
Drawings
Fig. 1 is a schematic diagram of a conventional discone antenna.
Fig. 2 is a cross-sectional view of an antenna of the present invention.
Fig. 3 is a top view of the antenna of the present invention.
Fig. 4 is a bottom view of the antenna of the present invention.
Fig. 5 is a standing wave ratio versus frequency for an antenna of the present invention.
Fig. 6 is a horizontal plane pattern of the antenna of the present invention.
In the figure: 1. discone antenna conductor disc 2 discone antenna conductor cone
3. Solid cone of metal cone spiral radiator 4. Inner penetrating connector
5. Mounting plate for edges of square metal cavity of cylindrical metal cavity 5.a
6. Coaxial connector 6.a coaxial connector outer conductor
Coaxial connector medium 6.C coaxial connector inner core
6.d coaxial connector flange 7 radome
8 to 15, 16 to 19, and
Detailed Description
To make the objects, contents and advantages of the present invention more apparent, the following detailed description of the present invention will be given with reference to the accompanying drawings and examples.
Referring to fig. 2, 3 and 4, the wideband embedded omnidirectional antenna in band C of the present embodiment includes a metallic conical spiral radiator 3, a solid cone 4 with an internally threaded connector, a cylindrical metallic cavity 5, a coaxial feed connector 6 inserted into the antenna structure, and a radome 7; the solid cone 4 is arranged in the cylindrical metal cavity 5, the metal cone spiral radiator 3 is arranged on the outer wall of the solid cone 4, and the antenna housing 7 is covered on the top opening of the cylindrical metal cavity 5; a coaxial feed connector 6 is fixed to the bottom of the cylindrical metal cavity 5 and passes through the solid cone 4 and the metal cone spiral radiator 3.
The coaxial feed connector 6 includes: coaxial connector outer conductor 6.a, coaxial connector medium 6.B, coaxial connector inner core 6.C, coaxial connector flange 6.d; the coaxial connector medium 6.B is sleeved outside the coaxial connector inner core 6.C, the coaxial connector medium 6.B penetrates through the solid cone 4 and the upper ends of the coaxial connector inner core 6.C are flush, the upper end of the coaxial connector inner core 6.C extends out of the coaxial connector medium 6.B and is connected with the upper end of the metal cone spiral radiator 3 in a welding mode, the coaxial connector outer conductor 6.a is sleeved outside the lower end of the coaxial connector medium 6.B, the coaxial connector flange 6.d is arranged at the upper end of the coaxial connector outer conductor 6.a, and the coaxial connector flange 6.d is connected with the bottom of the cylindrical metal cavity 5.
The metal conical spiral radiator 3 is made of brass.
The cylindrical metal cavity 5 is hollowed, the cavity is internally provided with an integrally processed solid cone 4, a through hole is arranged in the middle of the solid cone 4, and the diameter of the through hole is consistent with the diameter of the part 6.B of the coaxial connector medium.
The coaxial connector 6 is connected through from bottom to top from the bottom of the cylindrical metal cavity 5, the top edge of the cylindrical metal cavity 5 is provided with an annular mounting plate 5.a, and the annular mounting plate 5.a is provided with a through hole for connecting with an antenna mounting carrier through screws 8, 10, 12 and 14 and connecting with the radome 7 through screws 9, 11, 13 and 15.
The cylindrical metal cavity 5 is made of brass.
The radome 7 is a circular dielectric sheet, and is screwed on the mounting plate 5.a at the edge of the cylindrical metal cavity 5 through screws 9, 11, 13 and 15, so that the other structural members 3, 4, 5 and 6 of the antenna and the radome 7 form a whole.
The radome 7 is made of glass fiber reinforced plastic, is firm and durable, has good wave transmittance, and can ensure the efficient receiving and transmitting of communication signals.
The antenna adopts an N-type coaxial connector 6 to connect and feed, the coaxial connector 6 selects N-50KFD2 of Shanxi Huada technology Co., ltd, and is characterized in that the extended coaxial inner core 6.C and medium 6.B parts are longer (inner core 12.6mm, medium part 8.6 mm) and can penetrate through the bottom of the cylindrical metal cavity 5 and integrally process the solid cone 4 with the cylindrical metal cavity 5, the top of the coaxial inner core 6.C of the connector is welded and connected with the metal cone spiral radiator 3, and the flange 6.d of the connector is fixedly connected with the bottom of the cylindrical metal cavity 5 through screws 16, 17, 18 and 19.
In the invention, the metal cone spiral radiator 3 and the solid cone 4 integrally processed in the cylindrical metal cavity 5 are the most main components for radiating electromagnetic waves to the space, when signals are transmitted, the coaxial connector 6 inputs the transmitted signals of an external transmitter through a connected coaxial cable, and the energy output by the coaxial connector excites the surface currents of the metal cone spiral radiator 3 and the solid cone 4 integrally processed in the cylindrical metal cavity 5, so that radiation is generated; because the antenna is wholly of an embedded structure, the antenna can be completely embedded into a vehicle for installation, is convenient to be conformal with a vehicle body and is not easy to damage; the cylindrical metal cavity 5 adopts the basic structure of the lower semiconductor cone 2 of the discone antenna (the discone antenna is composed of a conductor disc 1 and a conductor cone 2) and the basic structure of the metal cone spiral radiator 3, so that the antenna can receive or emit vertical polarized electromagnetic waves and has wider bandwidth, and the polarization and bandwidth requirements of the antenna in a C frequency band are met; due to the axisymmetric characteristic of the whole antenna structure, the antenna can uniformly distribute radiation fields within the 360-degree range of the horizontal plane; because the whole antenna is provided with only one welding spot (the metal conical spiral radiator 3 is in welded connection with the coaxial connector inner core 6. C), other adhesion devices are not provided, the consistency of the antenna is good, and the mass production of the antenna is facilitated.
Fig. 5 is a standing wave ratio VSWR versus frequency for an antenna of the present invention. Standing wave ratio is an important performance parameter of an antenna, and reflects the impedance characteristic of the antenna to be measured and also determines the impedance bandwidth of the antenna. Referring to fig. 5, the working frequency band of the antenna of the invention is between 4.21GHz and 5.83GHz in the C-band, and the standing wave ratio of the antenna is less than 2 in the wide frequency range of 32.27%, which indicates that the antenna can be well matched with a 50 Ω coaxial cable in the frequency band, and compared with the conventional dipole antenna, the relative bandwidth is less than 10%, and the invention ensures that the antenna has wider impedance bandwidth.
Fig. 6 is a horizontal plane radiation pattern of the antenna of the present invention. The pattern is a graph characterizing the radiation characteristics of the antenna in relation to the spatial angle. Referring to fig. 6, the antenna is uniformly and omnidirectionally distributed in the range of 360 degrees of horizontal plane, the out-of-roundness is less than 1dB, and good omnidirectionally radiation characteristics can be maintained.
The antenna designed by the invention can shorten or enlarge the sizes of the conical spiral radiator 3, the cylindrical metal cavity 5, the solid cone 4 and the radome 7 which are integrally processed in the cylindrical metal cavity according to the requirement except that the antenna works in the C frequency band, so that the antenna works in other frequency bands.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.
Claims (10)
1. The C-band broadband embedded omnidirectional antenna is characterized by comprising a metal conical spiral radiator (3), a solid cone (4) internally penetrating a connector, a cylindrical metal cavity (5), a coaxial feed connector (6) inserted into an antenna structure and an antenna housing (7); the solid cone (4) is arranged in the cylindrical metal cavity (5), the metal cone spiral radiator (3) is arranged on the outer wall of the solid cone (4), and the antenna housing (7) is covered on the top opening of the cylindrical metal cavity (5); the coaxial feed connector (6) is fixed at the bottom of the cylindrical metal cavity (5) and penetrates through the solid cone (4) and the metal cone spiral radiator (3).
2. A C-band broadband buried omni-directional antenna according to claim 1, characterized in that said coaxial feed connector (6) comprises: a coaxial connector outer conductor (6.a), a coaxial connector medium (6. B), a coaxial connector inner core (6. C), a coaxial connector flange (6.d); the coaxial connector medium (6. B) is sleeved outside the coaxial connector inner core (6. C), the coaxial connector medium (6. B) penetrates through the solid cone (4) and the upper ends of the coaxial connector inner core and the coaxial connector inner core are flush, the upper end of the coaxial connector inner core (6. C) extends out of the coaxial connector medium (6. B) and is connected with the upper end of the metal cone spiral radiator (3) in a welding mode, the coaxial connector outer conductor (6.a) is sleeved outside the lower end of the coaxial connector medium (6. B), the coaxial connector flange (6.d) is arranged at the upper end of the coaxial connector outer conductor (6.a), and the coaxial connector flange (6.d) is connected with the bottom of the cylindrical metal cavity (5).
3. A C-band broadband buried omni-directional antenna according to claim 2, characterized in that the metallic conical helical radiator (3) is chosen from brass.
4. A C-band broadband buried omni-directional antenna according to claim 3, characterized in that the cylindrical metal cavity (5) is hollowed out, the cavity is internally provided with an integrally processed solid cone (4), a through hole is arranged in the middle of the solid cone (4), and the diameter of the through hole is consistent with the diameter of a part of the coaxial connector medium (6. B).
5. The C-band broadband embedded omnidirectional antenna of claim 4, wherein the coaxial connector (6) is connected from bottom to top through the bottom of the cylindrical metal cavity (5), the top edge of the cylindrical metal cavity (5) is provided with an annular mounting plate (5.a), and the annular mounting plate (5.a) is provided with a through hole for being connected with the antenna mounting carrier through a screw and being connected with the antenna housing (7) through a screw.
6.A C-band broadband buried omni-directional antenna according to claim 5, characterized in that said cylindrical metal cavity (5) is chosen from brass.
7. The C-band broadband buried omni-directional antenna according to claim 6, wherein the radome (7) is a circular dielectric sheet and is screwed onto a mounting plate (5.a) at the edge of the cylindrical metal cavity (5) by means of screws.
8. The C-band broadband embedded omni-directional antenna according to claim 7, wherein the radome (7) is made of glass fiber reinforced plastic.
9. The C-band broadband buried omni-directional antenna according to claim 8, wherein the antenna is fed with an N-type coaxial connector (6).
10. Use of a C-band broadband buried omni-directional antenna according to any of claims 1-9 in the technical field of microwave antennas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311503874.4A CN117497997A (en) | 2023-11-13 | 2023-11-13 | C-band broadband embedded omnidirectional antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311503874.4A CN117497997A (en) | 2023-11-13 | 2023-11-13 | C-band broadband embedded omnidirectional antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117497997A true CN117497997A (en) | 2024-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311503874.4A Pending CN117497997A (en) | 2023-11-13 | 2023-11-13 | C-band broadband embedded omnidirectional antenna |
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| Country | Link |
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| CN (1) | CN117497997A (en) |
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2023
- 2023-11-13 CN CN202311503874.4A patent/CN117497997A/en active Pending
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