CN207368215U - A kind of multimode antenna - Google Patents

A kind of multimode antenna Download PDF

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Publication number
CN207368215U
CN207368215U CN201721899906.7U CN201721899906U CN207368215U CN 207368215 U CN207368215 U CN 207368215U CN 201721899906 U CN201721899906 U CN 201721899906U CN 207368215 U CN207368215 U CN 207368215U
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CN
China
Prior art keywords
antenna
hole
base
beidou
telemetering
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Application number
CN201721899906.7U
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Chinese (zh)
Inventor
屈平
曹腾
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Xi'an Maode Communication Technology Co Ltd
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Xi'an Maode Communication Technology Co Ltd
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Priority to CN201721899906.7U priority Critical patent/CN207368215U/en
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Publication of CN207368215U publication Critical patent/CN207368215U/en
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Abstract

The utility model discloses a kind of multimode antenna, including antenna base, and Beidou antenna body is provided with the antenna base;The Beidou antenna body has first through hole, and shielded layer is provided with the first through hole inner wall;Telemetering antenna body is also equipped with the antenna base, the telemetering antenna body passes through the first through hole;Pass through in the utility model and the first through hole with shielded layer is set on Beidou antenna body so that Beidou antenna body and telemetering antenna interfere with each other reduction, and the utility model is simple in structure, compact, highly practical.

Description

A kind of multimode antenna
Technical field
It the utility model is related to a kind of antenna, and in particular to a kind of multimode antenna.
Background technology
With the constantly improve of Beidou satellite navigation system, its application becomes increasingly extensive.Beidou antenna is used to receive north The navigation signal of bucket satellite launch, its performance play the positioning accuracy of equipment decisive role, and what Beidou antenna received defends Star number amount is more, signal strength is stronger, and the positioning accuracy of equipment is more accurate.In general, Beidou antenna will have circular polarisation And the characteristics of broad beam.Telemetry is an integrated technology using sensing technology, the communication technology and data processing technique. Telemetering antenna is the necessary equipment for realizing telemetry communication, it is however generally that, telemetering antenna has the characteristics that linear polarization and omni-directional.
At present, independent Beidou navigation equipment and independent remote-measuring equipment have obtained application, but collect Beidou navigation and distant The compact apparatus of brake is still in the development stage, wherein possessing the miniaturization multimode antenna of the Big Dipper and telemetry function It is technical one big difficult point.Minimizing the functional characteristics of multimode antenna is:Can receive big-dipper satellite small-signal and Launch the telemetered signal of relatively high power, and can work at the same time.Therefore, in compact apparatus, reception and transmitting can exist Larger interference problem, especially in emission process, telemetering antenna can disturb the reception of Beidou antenna, and equipment is smaller, do Disturb more serious.
The content of the invention
It is distant in compact apparatus of the prior art to solve the purpose of this utility model is to provide a kind of multimode antenna The problem of observation line is with Beidou antenna serious interference.
In order to realize above-mentioned task, the utility model uses following technical scheme:
A kind of multimode antenna, including antenna base, are provided with Beidou antenna body on the antenna base;The Big Dipper Antenna body has first through hole, and shielded layer is provided with the first through hole inner wall;It is also equipped with the antenna base distant Observation wire body, the telemetering antenna body pass through the first through hole.
Further, the telemetering antenna body is connected by being arranged on the coaxial connector of its bottom with the antenna base Connect, the telemetering antenna body top is provided with metal probe.
Further, the coaxial connector has external screw thread, and the antenna base is provided centrally with internal thread mounting hole, The external screw thread of the coaxial connector and the internal thread mounting hole of antenna base are connected, the telemetering antenna body and antenna bottom Seat vertical connection.
Further, what the first through hole was located at Beidou antenna body center and first through hole is axially perpendicular to antenna bottom Seat, the Beidou antenna body top are provided with aerial radiation piece, the aerial radiation on piece are provided with power feed hole, in the north The surrounding of bucket antenna body is provided with the first mounting hole for being connected with antenna base.
Further, the crosstalk that the circular polarization characteristics for excitation antenna are additionally provided with the Beidou antenna body is adjusted Branch.
Further, hollow antenna house, the antenna base, Beidou antenna are installed on the antenna base Body, telemetering antenna body are respectively positioned in the antenna house;Set at the top of the antenna house it is fluted, the bottom portion of groove offer with Second through hole of antenna house connection, the top of the telemetering antenna body through second through hole and are stretched in groove.
Further, opened up on the antenna house inner wall to coordinate the first annular groove of installation with antenna base, described It is additionally provided with above first annular groove to coordinate the second annular groove of installation with Beidou antenna body.
Further, the multimode antenna further include in the antenna house top groove be used for change remote measurement The printed board of antenna body resonant frequency, the printed board top are provided with copper foil.
Further, the second mounting hole to be connected with Beidou antenna body is additionally provided with the antenna base, The antenna base surrounding is provided with the 3rd mounting hole to be connected with antenna house.
The utility model has following technical characterstic compared with prior art:
1st, the through hole for coordinating installation with telemetering antenna body is provided with Beidou antenna body, and sets and shields in through-hole wall Cover layer so that the interference between two kinds of antennas reduces, on related compact apparatus;
2nd, miniature antenna is two-in-one, can reduce system and the cost of equipment;
3rd, antenna structure is simple, dependable performance;
4th, compact, can be that compact apparatus saves space resources;
5th, antenna is easy to be integrated with radio circuit or module.
Brief description of the drawings
Fig. 1 is the profile of multimode antenna provided by the utility model;
Fig. 2 is telemetering antenna body schematic diagram provided by the utility model;
Fig. 3 is Beidou antenna body top view provided by the utility model;
Fig. 4 is antenna house profile provided by the utility model;
Fig. 5 is antenna base profile provided by the utility model;
Fig. 6 is the top view of antenna base provided by the utility model.
Figure label represents:1- antenna bases, 2- Beidou antenna bodies, 3- telemetering antenna bodies, 4- antenna houses, 5- printed boards, 11- internal thread mounting holes, the second mounting holes of 12-, the 3rd mounting holes of 13-, 21- first through hole, 22- aerial radiation pieces, 23- feeds Hole, the first mounting holes of 24-, 25- crosstalks adjusting branch, 26- shielded layers, 31- coaxial connectors, 32- metal probes, 41- grooves, The second through holes of 42-, the first annular grooves of 43-, the second annular grooves of 44-
Embodiment
As shown in Figures 1 to 6, the utility model discloses a kind of multimode antenna, including antenna base 1, in the antenna Beidou antenna body 2 is installed on base 1;The Beidou antenna body 2 has a first through hole 21, on 21 inner wall of first through hole It is provided with shielded layer 26;It is also equipped with telemetering antenna body 3 on the antenna base 1, the telemetering antenna body 3 is through described the One through hole 21.
As shown in Figure 1, the bottom for the multimode antenna that the application provides is provided with antenna base 1, the shape of base 1 is not solid Provisioning request, such as can be disc, square or other shapes;In the present embodiment, 1 knot in disk form of antenna base Structure, the antenna base 1 are internally provided with cavity, and 1 surrounding of antenna base is provided with the installing plate less than the antenna base 1, The antenna base 1 is metal material, and as a kind of preferred embodiment, which is stainless steel, and surface carries out gold-plated place Reason, to ensure the structurally and electrically performance under particular job environment.
As shown in Figure 1, the Beidou antenna body 2 of collar plate shape, the radial ruler of Beidou antenna body 2 are installed on antenna base 1 It is very little to be slightly less than antenna base 1, the first through hole 21 perpendicular to antenna base 1, telemetering antenna body are offered on Beidou antenna body 2 3 bottom is connected after passing through the first through hole 21 of Beidou antenna body 2 with antenna base 1.
In the present solution, shielded layer 26 is provided with the inner wall of first through hole 21, to reduce Beidou antenna body 2 and remote measurement day Line 3 interferes with each other, and ensures two isolation between antennaes.Alternatively, which can be becket or inside The electroplated metal layer set on wall, or the shielded layer made of other shielding materials.Using this structure, not only make the Big Dipper Antenna body 2 and telemetering antenna 3 have been integrated on same antenna base 1 jointly, realize collect Beidou navigation and telemetry function in All over the body, and it ensure that the miniaturization of equipment, it is often more important that solve the problems, such as the antenna interference of mini-plant generally existing.Institute The unfixed hole for requiring, being round hole, square hole or other shapes of the shape for the first through hole 21 stated;The present embodiment In, as shown in Figure 1, first through hole 21 is round hole, the telemetering antenna body 3 passes through the middle part of first through hole 21.
Alternatively, the telemetering antenna body 3 is connected by being arranged on the coaxial connector 31 of its bottom with the antenna base 1 Connect, 3 top of telemetering antenna body is provided with metal probe 32.
As shown in Figure 1, 2, telemetering antenna body 3 is made of two parts, first, being used for transmission line positioned at 3 bottom of telemetering antenna body The coaxial connector 31 of electrical connection, the coaxial connector 31 also to by telemetering antenna body 3 be installed on antenna base 1 on;Two It is the metal probe 32 positioned at the top of telemetering antenna body 3, for sending and receiving signal.
As a kind of optional scheme, the coaxial connector 31 has external screw thread, and the antenna base 1 is provided centrally with Internal thread mounting hole 11, the external screw thread of the coaxial connector 31 are connected with the internal thread mounting hole 11 of antenna base 1, institute State telemetering antenna body 3 and 1 vertical connection of antenna base.
As shown in Figure 1, 2, the outer surface of coaxial connector 31 is provided with helicitic texture, and 1 center of antenna base has opened up band Female mounting hole, therefore the external screw thread of coaxial connector 31 and the internal thread mounting hole 11 of antenna base 1 cooperate Connection, and telemetering antenna body 3 is installed perpendicular to antenna base 1.Alternatively, which can be that SSMP connects Connect device, or SMP connectors.
Alternatively, what the first through hole 21 was located at 2 center of Beidou antenna body and first through hole 21 is axially perpendicular to antenna Base 1, the top of Beidou antenna body 2 are provided with aerial radiation piece 22, power feed hole are provided with the aerial radiation piece 22 23, the surrounding of the Beidou antenna body 2 is provided with the first mounting hole 24 for being connected with antenna base 1.
Required as shown in figure 3, the shape of the Beidou antenna body 2 is fixed, for example, can be disc, it is square or other Shape, as a kind of preferred embodiment, which is discoid ceramic antenna, a diameter of 23mm, which selects Dielectric constant is 20, low-loss ceramics of the loss angle tangent less than 0.001, thickness 5-6mm, to realize the miniaturization of antenna.
To enable remote sensing antenna body 4 through Beidou antenna body 2 and being installed perpendicular to antenna base 1, first through hole 21 Position be arranged on the center of Beidou antenna body 2 and perpendicular to antenna base 1;Pushed up by varying Beidou antenna body 2 is provided with The size of the aerial radiation piece 22 in portion, makes antenna resonance in Big Dipper frequency range and works, which is irregular Shape;The impedance of antenna can be adjusted by varying the power feed hole 23 being arranged on aerial radiation piece 22 so that antenna has good Good impedance matching property.
Preferably, the crosstalk that the circular polarization characteristics for excitation antenna are additionally provided with the Beidou antenna body 2 is adjusted Branch 25.
As shown in figure 3, due in the application Beidou antenna body 2 be disc structure, be provided with for excitation antenna justify The crosstalk of polarization characteristic adjusts branch 25, which is adjusted to the periphery for being arranged on aerial radiation 22.
Further, hollow antenna house 4, the antenna base 1, Big Dipper day are installed on the antenna base 1 Wire body 2, telemetering antenna body 3 are respectively positioned in the antenna house 4;The top of antenna house 4 sets fluted 41,41 bottom of groove Portion offers the second through hole 42 connected with antenna house 4, and the top of the telemetering antenna body 3 through second through hole 42 and is stretched Enter into groove 41.
As shown in figure 4, being also equipped with the antenna house 4 that cross section is taper on antenna base 1, the inside of antenna house 4 is sky Core structure is used to accommodate antenna base 1, Beidou antenna body 2 and telemetering antenna body 3, to coordinate its internal Beidou antenna body 2 And the transmitting and reception of telemetering antenna body 3, the antenna house 4 are nonmetallic electromagnetic wave transparent material.
The groove 41 for accommodating printed board 5 is offered at the top of antenna house 4, it is logical that second is offered in 41 bottom of groove Hole 42, the second through hole 42 are connected with 4 inner cavity of antenna house, therefore the metal probe 32 at the top of telemetering antenna body 3 can be to pass through second Through hole 42, stretches into and passes through printed board 5 in groove 41 from bottom to top.
Further, opened up on 4 inner wall of antenna house to coordinate the first annular groove 43 of installation with antenna base 1, The top of first annular groove 43 is additionally provided with to coordinate the second annular groove 44 of installation with Beidou antenna body 2.
As shown in figure 4, in order to which antenna base 1 and Beidou antenna body 2 can be accommodated and installed inside antenna house 4, The first annular groove 43 and the second annular groove 44 are opened up on 4 inner wall of antenna house so that antenna house 4, which can block, to be set installed in antenna base 1 and the outer of Beidou antenna body 2.
In addition, as shown in figure 4,4 bottom surrounding of antenna house is provided with mounting hole, to be connected with antenna base.As A kind of preferred embodiment, the mounting hole can be internal thread structure.
Further, the multimode antenna is further included is used to change in 4 top groove 41 of antenna house The printed board 5 of 3 resonant frequency of telemetering antenna body, the top of printed board 5 are provided with copper foil.
As shown in Figure 1, as a preferred embodiment, FR4 materials, thickness 1mm are selected in the printed board 5;Printing The top of making sheet 5 is provided with copper foil, and the metal probe 32 at the top of telemetering antenna body 3 first passes through antenna house 4 through printed board 5 Through hole be connected with copper foil, the resonant frequency of telemetering antenna body 3 can be changed by adjusting the size of copper foil, make its work in remote measurement frequency Section.
Further, the second mounting hole to be connected with Beidou antenna body 2 is additionally provided with the antenna base 1 12,1 surrounding of antenna base is provided with the 3rd mounting hole 13 to be connected with antenna house 4.
As shown in Figure 5,6, corresponding set carries out cooperation company with Beidou antenna body 2 and antenna house 4 on antenna base 1 The second mounting hole 12, the 3rd mounting hole 13 connect, as a preferred embodiment, the mounting hole can be threaded hole, is adopted It is connected with thread fiting mode with miscellaneous part.

Claims (9)

1. a kind of multimode antenna, including antenna base (1), it is characterised in that Big Dipper day is installed on the antenna base (1) Wire body (2);The Beidou antenna body (2) has first through hole (21), and shielding is provided with first through hole (21) inner wall Layer (26);Telemetering antenna body (3) is also equipped with the antenna base (1), the telemetering antenna body (3) passes through described first Through hole (21).
2. multimode antenna as claimed in claim 1, it is characterised in that the telemetering antenna body (3) is by being arranged on its bottom Coaxial connector (31) be connected with the antenna base (1), telemetering antenna body (3) top is provided with metal probe (32)。
3. multimode antenna as claimed in claim 2, it is characterised in that the coaxial connector (31) has external screw thread, described Antenna base (1) is provided centrally with internal thread mounting hole (11), external screw thread and the antenna base (1) of the coaxial connector (31) Internal thread mounting hole (11) be connected, the telemetering antenna body (3) and antenna base (1) vertical connection.
4. multimode antenna as claimed in claim 1, it is characterised in that the first through hole (21) is located at Beidou antenna body (2) Center and first through hole 21 are axially perpendicular to antenna base (1), and aerial radiation piece is provided with the top of the Beidou antenna body (2) (22), power feed hole (23) is provided with the aerial radiation piece (22), the surrounding of the Beidou antenna body (2) is provided with use In the first mounting hole (24) being connected with antenna base 1.
5. multimode antenna as claimed in claim 4, it is characterised in that be additionally provided with and be used on the Beidou antenna body (2) The crosstalk of the circular polarization characteristics of excitation antenna adjusts branch (25).
6. multimode antenna as claimed in claim 1, it is characterised in that be provided with hollow day on the antenna base (1) Irdome (4), the antenna base (1), Beidou antenna body (2), telemetering antenna body (3) are respectively positioned in the antenna house (4);Institute State and fluted (41) are set at the top of antenna house (4), groove (41) bottom offers the second through hole connected with antenna house (4) (42), the top of the telemetering antenna body (3) through second through hole (42) and is stretched in groove (41).
7. multimode antenna as claimed in claim 6, it is characterised in that opened up on antenna house (4) inner wall to antenna Base (1) coordinates the first annular groove (43) of installation, be additionally provided with above first annular groove (43) to Beidou antenna body (2) the second annular groove (44) of installation is coordinated.
8. multimode antenna as claimed in claim 6, it is characterised in that the multimode antenna is further included installed in the antenna The printed board (5) for being used to change telemetering antenna body (3) resonant frequency in cover (4) top groove (41), printed board (5) top Portion is provided with copper foil.
9. multimode antenna as claimed in claim 1, it is characterised in that be additionally provided with the antenna base (1) to Beidou antenna body (2) connection the second mounting hole (12), the antenna base (1) surrounding be provided with to antenna house (4) 3rd mounting hole (13) of connection.
CN201721899906.7U 2017-12-29 2017-12-29 A kind of multimode antenna Active CN207368215U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721899906.7U CN207368215U (en) 2017-12-29 2017-12-29 A kind of multimode antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721899906.7U CN207368215U (en) 2017-12-29 2017-12-29 A kind of multimode antenna

Publications (1)

Publication Number Publication Date
CN207368215U true CN207368215U (en) 2018-05-15

Family

ID=62344228

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721899906.7U Active CN207368215U (en) 2017-12-29 2017-12-29 A kind of multimode antenna

Country Status (1)

Country Link
CN (1) CN207368215U (en)

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