CN109616749A - A kind of antenna for marine radar - Google Patents
A kind of antenna for marine radar Download PDFInfo
- Publication number
- CN109616749A CN109616749A CN201710925469.XA CN201710925469A CN109616749A CN 109616749 A CN109616749 A CN 109616749A CN 201710925469 A CN201710925469 A CN 201710925469A CN 109616749 A CN109616749 A CN 109616749A
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- China
- Prior art keywords
- antenna
- impedance matching
- matching network
- outer shield
- micro
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- H01Q1/34—Adaptation for use in or on ships, submarines, buoys or torpedoes
-
- 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
- H01Q1/362—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith for broadside radiating helical antennas
-
- 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
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
-
- 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
Landscapes
- Waveguide Aerials (AREA)
Abstract
The present invention relates to Beidou navigation user terminal technical fields and the field ship automatic identification system (AIS), a kind of antenna for marine radar is specifically disclosed, including cavity, antenna body, outer shield from top to bottom, antenna body and outer shield are fixed on cavity, and antenna body is sealed in outer shield by outer shield；The antenna body from top to bottom successively including first layer centered on AIS antenna the circular polarized antenna of equally distributed different frequency range, the impedance matching network of the second layer, the impedance matching network bottom plate of third layer, bottom connector, the circular polarized antenna is welded on impedance matching network by way of coaxial feed, it is pressed on impedance matching network bottom plate, connector passes through impedance matching network bottom plate and is welded on impedance matching network.It is an advantage of the invention that Beidou antenna and AIS antenna are integrated in the same outer shield, three proofings (mould proof, moisture proof, salt spray proof) ability of antenna is improved after sealing, improves the afloat service life of antenna.
Description
Technical field
It is specific public the present invention relates to Beidou navigation user terminal technical field and the field ship automatic identification system (AIS)
A kind of antenna for marine radar is opened, is suitable for for AIS system, the whole world of BD2-B1, GPS-L1, BD-L, BD-S wave band
The antenna of positioning system, especially a kind of antenna for marine radar.
Background technique
Ship automatic identification system (Automatic Identification System, abbreviation AIS system), by bank base
(base station) facility and ship-borne equipment collectively constitute, be a kind of novel collection network technology, modern communications technology, computer technology,
Accommodation, ship's speed, change are navigated in the digital navaid that electronic information display technology is integrated, cooperation global positioning system (GPS)
To the ships static datas such as the Ship dynamic situations combination such as rate and course name of vessel, catchword, drinking water and dangerous cargo from very high frequency(VHF) (VHF) to
Its Adjacent Waters ship and base station broadcast enable neighbouring ship and base station to grasp the sound state money of all ships in sea nearby in time
News, are able to coordination of conversing mutually at once, take necessary Anti-collision Actions, effective guarantee navigation safety.Currently, certainly with China
There is the development of Beidou satellite navigation satellite navigation system, in the more and more of fishing boat navigation application, is led using AIS system equipped with Beidou
Boat system ratio is more advantageous using GPS system, may be either that user provides consecutive tracking, the ability that tests the speed (i.e. so-called passive navigation
Positioning), and the position report of the high security level of no information transmission can be carried out.Therefore my company proposes a kind of for ship thunder
The demand of the antenna reached.
Summary of the invention
The object of the present invention is to provide a kind of antennas for marine radar, and the circular polarized antenna of different frequency range is with one
Be evenly distributed in antenna cavity centered on the linear polarized antenna of AIS vertical polarization, be it is a kind of for AIS system, Beidou RNSS and
RDSS systematic difference antenna.
To achieve the goals above, present invention employs technical solutions below: a kind of antenna for marine radar, packet
Cavity, antenna body, outer shield from top to bottom is included, antenna body and outer shield are fixed on cavity, and outer shield seals antenna body
In outer shield；
The antenna body successively includes the equally distributed different frequency range centered on AIS antenna of first layer from top to bottom
Circular polarized antenna, the impedance matching network of the second layer, the impedance matching network bottom plate of third layer, bottom connector, it is described
Circular polarized antenna is welded on impedance matching network by way of coaxial feed, is pressed on impedance matching network bottom plate, connection
Device passes through impedance matching network bottom plate and is welded on impedance matching network.
Wherein, the circular polarized antenna includes B/L micro-strip paster antenna, L micro-strip paster antenna, S micro-strip paster antenna.
Wherein, the impedance matching network includes upper substrate, the microstrip line in upper substrate.
Wherein, the AIS antenna includes interior media stick, external helicoid, and external helicoid bottom end is welded on the impedance
On the microstrip line of distribution network.
Wherein, the B/L micro-strip paster antenna includes lower basal plate, feeding point, top patch, corner cut, the top patch
Piece is attached in lower basal plate, is welded on feeding point using probe pin upper ends, the micro-strip on lower end and the impedance matching network
Wire bonding.
Wherein, the L micro-strip paster antenna include lower basal plate, feeding point, top patch, corner cut, the top patch
It is attached in lower basal plate, is welded on feeding point using probe pin upper ends, the microstrip line on lower end and the impedance matching network
Welding.
Wherein, the S micro-strip paster antenna include lower basal plate, feeding point, top patch, corner cut, the top patch
It is attached in lower basal plate, is welded on feeding point using probe pin upper ends, the microstrip line on lower end and the impedance matching network
Welding.
Wherein, be machined on the cavity the first mounting hole of installation outer shield, connector outlet, installation antenna body the
Two mounting holes, seal groove, the antenna body are screwed on cavity by the second mounting hole；The outer shield spinning is close
In sealing groove, sealing ring is installed in seal groove additional, then be screwed on cavity by the first mounting hole.
The present invention have compared with prior art it is following a little:
1. the present invention integrates Beidou antenna and AIS antenna on the same antenna, it is effectively reduced congenerous to be realized
The number of antenna.
2. the present invention integrates Beidou antenna and AIS antenna in the same outer shield, the three proofings that antenna is improved after sealing are (anti-
Mould, moisture proof, salt spray proof) ability, improve the afloat service life of antenna.
3. the present invention reduces the size of AIS antenna, it is easily installed.
Detailed description of the invention
Technical solution in order to illustrate the embodiments of the present invention more clearly, below will be to needed in embodiment description
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only the present invention in order to illustrate more clearly of this hair
Bright embodiment or technical solution in the prior art, below will be to drawings that need to be used in the embodiment or the prior art description
It is briefly described, it for those of ordinary skill in the art, without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the general structure schematic diagram of the embodiment of the present invention；
Fig. 2 is the schematic diagram that overall structure of the embodiment of the present invention dismantles cover；
Fig. 3 is antenna body decomposition diagram of the embodiment of the present invention；
Fig. 4 is the schematic diagram of B1/L1 micro-strip paster antenna of the embodiment of the present invention；
Fig. 5 is the schematic diagram of L micro-strip paster antenna of the embodiment of the present invention；
Fig. 6 is the schematic diagram of S micro-strip paster antenna of the embodiment of the present invention；
Fig. 7 is the schematic diagram of AIS antenna of the embodiment of the present invention；
Fig. 8 is the schematic diagram of impedance matching network of the embodiment of the present invention；
Fig. 9 is impedance matching network floor diagram of the embodiment of the present invention；
Figure 10 is cavity schematic diagram of the embodiment of the present invention；
Figure 11 is B1 micro-strip paster antenna directional diagram of the embodiment of the present invention；
Figure 12 is L1 micro-strip paster antenna directional diagram of the embodiment of the present invention；
Figure 13 is L micro-strip paster antenna directional diagram of the embodiment of the present invention；
Figure 14 is S micro-strip paster antenna directional diagram of the embodiment of the present invention；
Figure 15 is AIS antenna radiation pattern of the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig.1, the present invention is entirely a sealing structure.
Referring to Fig. 2, the present invention is installed by upper, middle and lower three-decker, from top to bottom includes cavity 1, antenna body 2, outer shield
Cover 3, antenna body 2 and outer shield 3 are fixed on cavity 1, and antenna body 2 is sealed in outer shield 3 by outer shield 3.
Referring to Fig. 3, the exploded view of inventive antenna body 2 from top to bottom, successively with AIS antenna 9 is including first layer
The equally distributed B1/L1 micro-strip paster antenna 6 of the heart, L micro-strip paster antenna 7, S micro-strip paster antenna 8, the impedance matching of the second layer
Network 5, the impedance matching network bottom plate 4 of third layer, the connector 10 of bottom.The B1/L1 micro-strip paster antenna 6, L micro-strip
Paster antenna 7, S micro-strip paster antenna 8 are welded on impedance matching network 5 by way of coaxial feed, and impedance matching is pressed in
On network bottom plate 4, connector 10 passes through impedance matching network bottom plate 4 and is welded on impedance matching network 5.
Referring to Fig. 4, the B1/L1 micro-strip paster antenna 6 includes lower basal plate 15, feeding point 16, top patch 17, corner cut
18,19, the top patch 17 is attached in lower basal plate 15, is soldered on feeding point 16 using probe pin upper ends, lower end and institute
The microstrip line 54 stated on impedance matching network 5 welds.
Referring to Fig. 5, the L micro-strip paster antenna 7 include lower basal plate 20, feeding point 21, top patch 22, corner cut 23,
24, the top patch 22 is attached in lower basal plate 20, is soldered on feeding point 21 using probe pin upper ends, lower end and the resistance
Microstrip line 55 on anti-matching network 5 welds.
Referring to Fig. 6, the S micro-strip paster antenna 8 include lower basal plate 26, feeding point 27, top patch 28, corner cut 29,
30, the top patch 28 is attached in lower basal plate 26, is soldered on feeding point 27 using probe pin upper ends, lower end and the resistance
Microstrip line 52 on anti-matching network 5 welds.
Wherein S micro-strip paster antenna 8, L micro-strip paster antenna 7, B1/L1 micro-strip paster antenna 6 are fed using central coaxial
Mode, corner cut realizes its circular polarisation.Using the microstrip line being connected in apex drive point as axis, patch of the corner cut in lower-left and upper right
Antenna is right-handed circular polarization (as shown in FIG. 6 S micro-strip paster antenna, B1/L1 micro-strip paster antenna shown in Fig. 4), and corner cut exists
The paster antenna of upper left and bottom right is left-hand circular polarization (L micro-strip paster antenna as shown in Figure 5).
In order to guarantee size, S micro-strip paster antenna 8 selects the substrate of low-k, B1/L1 micro-strip paster antenna 6 and L
Micro-strip paster antenna 7 need to use the substrate of high dielectric constant.By computer sim- ulation and optimization, optimum size is obtained, and guarantee three
Least gain when 20 degree of the low elevation angle of a micro-strip paster antenna is greater than -4dBic.
Referring to Fig. 7, the AIS antenna 9 includes interior media stick 91, external helicoid 92, and 92 bottom end of external helicoid is soldered to
On the microstrip line 53 of the impedance matching network 5.The polarization mode of AIS antenna is vertical polarization, since antenna frequencies are in VHF frequency
Section, will reduce the size, so increasing the wire length in finite size, centre plus Supporting Media using helical antenna, then pass through impedance
Match circuit is matched to 50 Ω.In -7.2dBi, client's actual use can satisfy 10 nautical miles of communications of communication for simulation result gain
It is required that.
AIS antenna uses normal direction mould medium helical antenna form, is located at 1 center of cavity, and gain is reachable in AIS frequency range maximum
To -7.2dBi (emulation data), Beidou antenna uses micro-strip paster antenna form, is evenly distributed on around AIS antenna, in BD-
B1, GPS-L1, BD-L, BD-S frequency range, 20 degree of low elevation angle gain≤- 4dBi (measured data).
Referring to Fig. 8, the impedance matching network 5 include upper substrate 51, the microstrip line 52 in upper substrate 51,
53,54,55.Connector and antenna are respectively welded at the both ends of microstrip line.
Referring to Fig. 9, the impedance matching network bottom plate 4 is coated under impedance matching network 5, and connector 10 passes through resistance
Anti- matching network bottom plate 4 is welded on impedance matching network 5.
Referring to Fig.1 0, the first mounting hole 11, the connector outlet 12, installation of installation outer shield 3 are machined on the cavity 1
The second mounting hole 13, the seal groove 14 of antenna body 2, the antenna body 2 are screwed by the second mounting hole 13 in cavity 1
On, 3 spinning of outer shield is in seal groove 14, the inner installation sealing ring of seal groove 14, then uses screw by the first mounting hole 11
It is fixed on cavity 1.
As seen from Figure 11, B1 frequency range (B1/L1 micro-strip paster antenna) maximum gain 4.30dBi of the present invention, the low elevation angle
20 ° of minimum value -2.12dBi.
As seen from Figure 12, L1 frequency range (B1/L1 micro-strip paster antenna) maximum gain 3.46dBi of the present invention, the low elevation angle
20 ° of minimum value -2.93dBi.
As seen from Figure 13, L frequency range (L micro-strip paster antenna) maximum gain 3.97dBi of the present invention, 10 ° of the low elevation angle is most
Small value -2.28dBi.
As seen from Figure 14, S frequency range (S micro-strip paster antenna) maximum gain 5.71dBi of the present invention, 10 ° of the low elevation angle is most
Small value -3.46dBi.
As seen from Figure 15, AIS frequency range (AIS antenna) maximum gain -7.2dBi of the present invention.
It is required as it can be seen that the present invention meets China BD-2 satellite navigation and location system subscriber computer antenna.
Preferably, welding manner can also be realized by other means, be not limited only to soldering.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of antenna for marine radar, it is characterised in that: including cavity (1), antenna body (2), outer shield from top to bottom
It covers (3), antenna body (2) and outer shield (3) are fixed on cavity (1), and antenna body (2) is sealed in outer shield (3) by outer shield (3)
It is interior；
The antenna body (2) successively includes the equally distributed different frequency range centered on AIS antenna (9) of first layer from top to bottom
Circular polarized antenna, the impedance matching network (5) of the second layer, third layer impedance matching network bottom plate (4), bottom connection
Device (10), the circular polarized antenna are welded on impedance matching network (5) by way of coaxial feed, and impedance matching net is pressed in
On network bottom plate (4), connector (10) passes through impedance matching network bottom plate (4) and is welded on impedance matching network (5).
2. a kind of antenna for marine radar according to claim 1, it is characterised in that: the circular polarized antenna includes
B1/L1 micro-strip paster antenna (6), L micro-strip paster antenna (7), S micro-strip paster antenna (8).
3. a kind of antenna for marine radar according to claim 2, it is characterised in that: the impedance matching network
It (5) include upper substrate (51), the microstrip line (52,53,54,55) on upper substrate (51).
4. a kind of antenna for marine radar according to claim 3, it is characterised in that: the AIS antenna (9) includes
Interior media stick (91), external helicoid (92), external helicoid (92) bottom end are welded on the microstrip line of the impedance matching network (5)
(53) on.
5. a kind of antenna for marine radar according to claim 3, it is characterised in that: the B1/L1 microband paste
Antenna (6) includes lower basal plate (15), feeding point (16), top patch (17), corner cut (18,19), the top patch (17)
It is attached on lower basal plate (15), is welded on feeding point (16) using probe pin upper ends, lower end and the impedance matching network (5)
On microstrip line (54) welding.
6. a kind of antenna for marine radar according to claim 3, it is characterised in that: the L micro-strip paster antenna
It (7) include lower basal plate (20), feeding point (21), top patch (22), corner cut (23,24), top patch (22) attachment
It on lower basal plate (20), is welded on feeding point (21) using probe pin upper ends, on lower end and the impedance matching network (5)
Microstrip line (55) welding.
7. a kind of antenna for marine radar according to claim 3, it is characterised in that: the S micro-strip paster antenna
It (8) include lower basal plate (26), feeding point (27), top patch (28), corner cut (29,30), top patch (28) attachment
It on lower basal plate (26), is welded on feeding point (27) using probe pin upper ends, on lower end and the impedance matching network (5)
Microstrip line (52) welding.
8. a kind of antenna for marine radar according to claim 1, it is characterised in that: processed on the cavity (1)
Have installation outer shield (3) the first mounting hole (11), connector outlet (12), install antenna body (2) the second mounting hole (13),
Seal groove (14), the antenna body (2) are screwed on cavity (1) by the second mounting hole (13)；
Outer shield (3) spinning is inner in seal groove (14), and seal groove (14) is inner to install sealing ring additional, then passes through the first mounting hole
(11) it is screwed on cavity (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710925469.XA CN109616749A (en) | 2017-10-04 | 2017-10-04 | A kind of antenna for marine radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710925469.XA CN109616749A (en) | 2017-10-04 | 2017-10-04 | A kind of antenna for marine radar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109616749A true CN109616749A (en) | 2019-04-12 |
Family
ID=66001426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710925469.XA Pending CN109616749A (en) | 2017-10-04 | 2017-10-04 | A kind of antenna for marine radar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109616749A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111244596A (en) * | 2020-02-03 | 2020-06-05 | 浙江001集团有限公司 | External three proofings antenna structure of high integration |
-
2017
- 2017-10-04 CN CN201710925469.XA patent/CN109616749A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111244596A (en) * | 2020-02-03 | 2020-06-05 | 浙江001集团有限公司 | External three proofings antenna structure of high integration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190412 |
|
| WD01 | Invention patent application deemed withdrawn after publication |