CN106450729A - Multi-frequency navigation terminal antenna - Google Patents
Multi-frequency navigation terminal antenna Download PDFInfo
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- CN106450729A CN106450729A CN201610942413.0A CN201610942413A CN106450729A CN 106450729 A CN106450729 A CN 106450729A CN 201610942413 A CN201610942413 A CN 201610942413A CN 106450729 A CN106450729 A CN 106450729A
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- microband paste
- medium substrate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—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
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/24—Polarising devices; Polarisation filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
- H01Q5/28—Arrangements for establishing polarisation or beam width over two or more different wavebands
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Abstract
The invention belongs to the technical field of communication and navigation and in particular relates to a multi-frequency navigation terminal antenna. A top-layer feeding point is arranged at the center of a first-layer micro-strip patch; a central feeding hole is vertically formed in the top-layer feeding point; a first feeding point is arranged at a second-layer micro-strip patch; a first feeding hole is vertically formed in the first feeding point; a second feeding point is arranged at a third-layer micro-strip patch; a second feeding hole is vertically formed in the second feeding point; a third feeding point is arranged at a fourth-layer micro-strip patch. The antenna also comprises first short circuit metallized via holes and second short circuit metallized via holes which are used for eliminating coupling influence of feeding probes in all the feeding holes. The multi-frequency navigation terminal antenna disclosed by the invention can cover L band and S band of first-generation Beidou, B1 band and B3 band of second-generation Beidou and L1 band of a GPS (Global Positioning System); the demands on minimization and lightness of antenna size are met while good impedance bandwidth, axial ratio bandwidth and high-gain performance can be guaranteed.
Description
Technical field
The invention belongs to communication and field of navigation technology, and in particular to a kind of multifrequency navigation terminal antenna.
Background technology
Beidou satellite navigation system is the global navigation satellite of China's independent research and communication system, the GPS with the U.S., Russia
The GLONASS of Ross, the Galileo system in Europe referred to as global four large satellites navigation system.With triones navigation system by
Step is improved and is extensively applied, and the research of its terminal antenna is also more and more extensive.Current navigation terminal antenna is mainly deposited
Being not easy to, terminal unit is integrated, or frequency band is narrower, multiple working frequency points can not be taken into account, or even multiband interport isolation is relatively
The technical problems such as difference.In view of this, multi-frequency polarized antenna is made using multi-disc method now, namely different using resonant frequency
Multiple pasters are stacked on the same substrate, generally larger paster are put in third layer and less paster is laminated on the second layer, so as to protect
Demonstrate,prove integrally-built compactedness；Meanwhile, for avoiding the feed probes for connecting each layer paster from producing the interference situation that works each other, every
All need around the power feed hole of individual confession feed probes insertion around the tiny metallization via of a circle that gathers, so as to the circle metallizes
At via inner ring, paster is under isolation, and then prevents the coupling influence between each feed probes.However, during actual fabrication
It has been found that as per layer of paster with feed probes is required for outside power feed hole one circle metallization via of corresponding arrangement, this
So that not only need the power feed hole periphery at the current layer paster to reserve the region for wearing for metallization via, while the bottom
Paster must also possess enough regions for accommodate by upper strata so that upper strata paster stacking through and come close dense
The metallization via of fiber crops, this can only be ensured by the paster area of the increase bottom, it is clear that extremely disadvantageous in current antenna body
The miniature requirement of product.
Content of the invention
The purpose of the present invention is provided a kind of rational in infrastructure and can reliably cover north for overcoming above-mentioned the deficiencies in the prior art
The L frequency range of a bucket generation and S frequency range, the multifrequency navigation terminal antenna of B1, B3 frequency range of Beidou II and GPS L1 frequency range, which can
While good impedance bandwidth and axial ratio bandwidth and high-gain performance is ensured, also can ensure that antenna volume miniaturization and
Lightness demand.
For achieving the above object, technical scheme below present invention employs：
A kind of multifrequency navigation terminal antenna, it is characterised in that：This antenna includes from top to bottom and successively lamellar arranged stacked
Ground floor microband paste, ground floor medium substrate, second layer microband paste, second layer medium substrate, third layer microband paste,
Third layer medium substrate, the 4th layer of microband paste, the 4th layer of medium substrate and bottom feeding network；Wherein, ground floor micro-strip
Paster constitutes the ground floor microstrip antenna for working in S frequency with ground floor medium substrate, and second layer microband paste is situated between with the second layer
Matter substrate constitutes the second layer microstrip antenna for working in L frequency, third layer microband paste and third layer medium substrate composition work
In the third layer microstrip antenna of B3 frequency, the 4th layer of microband paste and the 4th layer of medium substrate are constituted and work in B1 and L1 frequency
4th layer of microstrip antenna；
The center arrangement top layer distributing point of ground floor microband paste, by the vertical ground floor microband paste of top layer distributing point
Place plane and sequentially pass through ground floor medium substrate, second layer microband paste, second layer medium substrate, third layer micro-strip patch
Piece, third layer medium substrate, the 4th layer of microband paste, the 4th layer of medium substrate are provided with apex drive hole, and apex drive hole is
Metallization via, apex drive probe is coaxially arranged in apex drive in the hole, and the two ends of apex drive probe connect center respectively
Distributing point and the output interface at bottom feeding network；
The first distributing point is arranged at second layer microband paste, is located by the vertical second layer microband paste of the first distributing point flat
Face and sequentially pass through second layer medium substrate, third layer microband paste, third layer medium substrate, the 4th layer of microband paste, the 4th
Layer medium substrate is provided with the first power feed hole, and the first power feed hole is metallization via, and the first feed probes are coaxially arranged in first
Feed in the hole, the two ends of the first feed probes connect the first distributing point and the output interface at bottom feeding network respectively；
This antenna also includes the first short circuit metallic via through third layer microstrip antenna and the 4th layer of microstrip antenna, the first short circuit gold
Categoryization via is three groups, and the axis of the first short circuit metallic via and the first power feed hole is in apex drive axially bored line as axle
On the same face of cylinder of the heart and the first short circuit metallic via is uniform along above-mentioned cylindrical surface peripheral with the axis of the first power feed hole；
The second distributing point is arranged at third layer microband paste, is located by the vertical third layer microband paste of the second distributing point flat
Face and sequentially pass through third layer medium substrate, the 4th layer of microband paste and the 4th layer of medium substrate and be provided with the second power feed hole,
Second power feed hole is metallization via, and the second feed probes are coaxially arranged to feed in the hole, the two ends of the second feed probes in second
Connect the second distributing point and the output interface at bottom feeding network respectively；This antenna is also included through the 4th layer of micro-strip day
Second short circuit metallic via of line, the second short circuit metallic via is three groups, the second short circuit metallic via and the second feed
The axis in hole is on the same face of cylinder with apex drive axially bored line as axle center and the second short circuit metallic via and second
The axis of power feed hole is uniform along above-mentioned cylindrical surface peripheral；
The 3rd distributing point is arranged at 4th layer of microband paste, and the 3rd feed probes connect the through the 4th layer of medium substrate
Three distributing points and the output interface at bottom feeding network；
In first power feed hole positioned at third layer microstrip antenna and a sector hole Lu Yu of the 4th layer of microstrip antenna
Be provided with isolation first medium set each other between one feed probes, in second power feed hole positioned at the 4th layer of microstrip antenna
One sector hole road be provided with the second medium set isolated each other between the second feed probes；Aperture of first short circuit metallic via etc.
External diameter is covered in first medium；Second short circuit metallic via aperture is equal to second medium and covers external diameter.
The ground floor microband paste, ground floor medium substrate, second layer microband paste, second layer medium substrate, the 3rd
Layer microband paste, third layer medium substrate, the 4th layer of microband paste, the 4th layer of medium substrate and bottom feeding network profile are equal
For square sheets platy structure；At the 4th layer of microstrip antenna be distributed along the cincture of apex drive axially bored line each adjacent first
To each other away from equalization between short circuit metallic via, the first power feed hole, the second short circuit metallic via, the second power feed hole.
The ground floor microband paste profile is constructed in " mouth " shape, the middle section of the side inwall of ground floor microband paste
Level is extended with rectangle minor matters to apex drive hole direction, and the elongated end of rectangle minor matters arranges the apex drive point, and described the
One layer of two relative angle end of microband paste is all additionally provided with corner cut；It is arranged symmetrically at wherein two opposite side of the second layer microband paste
It is convexly equipped with the micro-band branch of rectangle；The two of which diagonal angle of the third layer microband paste equally arranges corner cut.
The bottom feeding network includes from top to bottom to stack gradually the metal ground plane of arrangement, underlying dielectric substrate, ring
Shaped microstrip line electric bridge and the output interface being arranged at annular microstrip line electric bridge；The first short circuit metallic via, first
Power feed hole, the second short circuit metallic via, the second power feed hole, the 3rd power feed hole that walks for the 3rd feed probes and center feedback
Electric Kong Jun is through above-mentioned metal ground plane and underlying dielectric substrate；Four straight flanges cinctures along annular microstrip line electric bridge are densely covered with
The 3rd metallization via of one circle, the top connection metal ground plane of the 3rd metallization via.
3rd power feed hole is the twice that the axis in parallel apex drive hole is arranged, the axis position of the 3rd power feed hole of twice
On the same face of cylinder with the axis in apex drive hole as axle center, and the axis of the 3rd power feed hole of twice and apex drive hole
The vertical line of axis is perpendicular to one another.
The dielectric constant of ground floor medium substrate is 9, long and width a size of 26mm × 26mm, and plate body thickness is 1.5mm；The
The dielectric constant of two layer medium substrate is 6, long and width a size of 48mm × 48mm, and plate body thickness is 1.5mm；Third layer medium base
The dielectric constant of plate is 10.2, long and width a size of 48mm × 48mm, and plate body thickness is 6mm；The dielectric of the 4th layer of medium substrate
Constant is 7, long and width a size of 48mm × 48mm, and plate body thickness is 2mm；The dielectric constant of underlying dielectric substrate is 4.6, long with
Width a size of 54mm × 54mm, plate body thickness is 1mm；The diameter of each feed probes is 0.9mm, the first short circuit metallic via
And second short circuit metallic via diameter be 3mm, the first feed probes axis away from apex drive hole axle distance between centers of tracks be 3.5mm～
3.5mm, the second feed probes axis is that 8mm, the 3rd feed probes axis is away from apex drive hole away from apex drive hole axle distance between centers of tracks
Axis spacing is 12mm.
Each medium substrate is microwave composite base plate.
The beneficial effects of the present invention is：
1), the present invention by be laminated affixed ground floor microstrip antenna, second layer microstrip antenna, third layer microstrip antenna,
4th layer of microstrip antenna coordinates bottom feeding network to constitute Anneta module, with ground floor microstrip antenna for S frequently during operation
Point, corresponds to L frequency with second layer microstrip antenna, with third layer microstrip antenna corresponding to B3 frequency, and the 4th layer of microstrip antenna
Corresponding to B1 and L1 frequency, so as to realize L frequency range and S frequency range, B1, B3 frequency range of Beidou II and the GPS L1 of a Big Dipper generation
The signal receiving function of frequency range.During use, above-mentioned Anneta module adopts high-k, the microwave composite base plate of low dielectric loss
Realize using short circuit metallic mistake in miniaturization, and the superimposing technique using multi-layer microstrip antenna center superposition and each medium substrate
Hole, improves the isolation of each output port further.Relatively conventional all circumferences whole one must be gathered around each power feed hole
For the complicated coupling shielding mode of circle metallization via, the present invention only correspondence adopts three groups of short circuit metallic per one power feed hole
Change via to match, you can play the purpose for eliminating accordingly coupling influence between each feed probes, this not only causes the work of equipment
Reliability is effectively guaranteed, simultaneously because the minimizing of the number of perforations that metallized so that the microband paste of less area
Ensure being drilled with for each metallization via, this is obviously beneficial to miniaturization and the lightness demand of current antenna.The setting of apex drive hole
Put, the worry of extra setting short circuit metallic via is not only eliminated, be conducive to reducing the structural volume of the present invention further, with
Shi Zishen can also use fixture as and use, and then realize the function secured to one another of each layer paster antenna, and its work is extremely reliable steady
Fixed.
2), during practical operation, in one section of first power feed hole being located in third layer microstrip antenna and the 4th layer of microstrip antenna
And one section second at the 4th layer of microstrip antenna feed in the hole can all arrange medium socket, in order to fill corresponding power feed hole with
Gap between corresponding feed probes；Now, the aperture for being considered as corresponding short circuit metallic via is equal to respective media set
External diameter.And it is located at the first adjacent short circuit metallic via at the 4th layer of microstrip antenna, the first power feed hole, the second short circuit gold
To each other away from equalization between categoryization via, the second power feed hole, when this is reflected at the 4th layer of medium substrate, it can be seen that in the medium
Assume equally distributed eight borehole structures at substrate surface.Each Kong Lu of above-mentioned spacing equalization, farthest reduces each
Work interference between person, this functional reliability to lift structure and stability play Beneficial Effect.
3), ground floor microband paste and third layer microband paste are square structure form, along its diagonal corner cut.
It is contemplated that distributing point is arranged at the 45 ° of linear positions of diagonal angle on third layer microband paste, realize the right side so as to more convenient
Hand circular polarization works.Second layer microband paste is square structure form, in the short micro-band branch of its symmetrical edge loading, and
On diagonal, distributing point is set, realizes left-hand circular polarization work.The medium substrate of bottom feeding network adopts the 3rd fine and closely woven gold medal
Categoryization via, and make the metallization via be connected with the metal bottom up and down of medium substrate, playing improves network standing wave and width phase is divided
Cloth, it is achieved thereby that the good isolation purpose of feeding network and antenna element.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is top view of Fig. 1 structure after the lamellar body horizonally split of ground floor microband paste；
Fig. 3 is top view of Fig. 1 structure after the lamellar body horizonally split of second layer microband paste；
Fig. 4 is top view of Fig. 1 structure after the lamellar body horizonally split of third layer microband paste；
Fig. 5 is top view of Fig. 1 structure after the lamellar body horizonally split of the 4th layer of microband paste；
Fig. 6 is the upward view of Fig. 1 structure.
In accompanying drawing, each label is as follows with each component names corresponding relation of the present invention：
A- first medium covers b- second medium set
11- ground floor microband paste 11a- rectangle minor matters 12- ground floor medium substrate
13- apex drive hole 14- apex drive probe
21- second layer microband paste 21a- micro-band branch 22- second layer medium substrate
23- the first power feed hole 24- the first feed probes 25- the first short circuit metallic via
31- third layer microband paste 32- third layer medium substrate the second power feed hole of 33-
34- the second feed probes 35- the second short circuit metallic via
The 4th layer of 41- the 4th layer of microband paste 42- medium substrate
The 3rd feed probes of the 3rd power feed hole 44- of 43-
51- metal ground plane 52- underlying dielectric substrate 53- annular microstrip line electric bridge
The metallization via of 54- the 3rd
Specific embodiment
For ease of understanding, here in connection with accompanying drawing, following description is made to be embodied as structure and the workflow of the present invention：
The concrete structure of the present invention, as Figure 1-5, including ground floor microstrip antenna, second layer microstrip antenna, third layer
Microstrip antenna, the 4th layer of microstrip antenna, bottom feeding network, feed probes, metallization via etc..Ground floor microstrip antenna includes
Ground floor microband paste 11 and ground floor medium substrate 12.Ground floor microband paste 11 is square thin-slab structure, and diagonally
Line cuts with diagonally；Ground floor microband paste 11 has with the projection of rectangle minor matters 11a in center square hole position and forms " U " shape
Gap.Second layer microstrip antenna includes second layer microdot paster 21 and second layer medium substrate 22, and second layer microdot paster 21 is same
Sample is square thin-slab structure, and loaded microstrip minor matters 21a at a pair of opposite side wherein.Third layer microstrip antenna includes third layer
Microband paste 31 and third layer medium substrate 32, third layer microband paste 31 or square thin-slab structure, and equally diagonally
Line is cut diagonally.4th layer of microstrip antenna includes the 4th layer of microband paste 41 and the 4th layer of medium substrate 42, the 4th layer of microband paste
41 is square thin-slab structure.Described bottom feeding network includes underlying dielectric substrate 52, is attached to underlying dielectric substrate 52
The metal ground plane 51 of upper surface, the annular microstrip line electric bridge 53 for being attached to 52 lower surface of underlying dielectric substrate and each frequency range
Output interface, the output interface position circular hole part with hatching shown in Figure 6.Annular microstrip line electric bridge 53 is divided by 50 Ω
Prop up microstrip line, low-resistance microstrip line, high resistant microstrip line and 50 ohm chip resistor composition.Arrange around annular microstrip line electric bridge 53
The 3rd fine and closely woven metallization via 54 of one circle, and make each 54 vertical of the 3rd metallization via upwards with metal ground plane 51
Connection, so as to improve the Isolated Shield effect between antenna element and feeding network.Feed probes then include that an apex drive is visited
Pin 14, first feed probes, 24, second feed probes 34 and two the 3rd feed probes 44.Apex drive probe 14
Top is connected with the distributing point of the rectangle minor matters 11a end of ground floor microband paste 11, and sequentially passes through ground floor medium base
Plate 12, second layer microstrip antenna, third layer microstrip antenna, the 4th layer of microstrip antenna and bottom feeding network, and feed with bottom
The output interface of network is connected.First feed probes, 24 top is connected with the distributing point of second layer microdot paster 21, and is worn successively
Cross second layer medium substrate 22, third layer microstrip antenna, the 4th layer of microstrip antenna and bottom feeding network, and with bottom transmission network
The output interface of network is connected；Additionally, the first feed probes 24 and third layer microstrip antenna, the 4th layer of microstrip antenna and bottom feedback
The metal ground plate of electric network and underlying dielectric substrate 52 are not contacted.Second feed probes, 34 top and third layer microband paste 31
Distributing point be connected, and sequentially pass through third layer medium substrate 32, the 4th layer of microstrip antenna and bottom feeding network, and and bottom
The output interface of feeding network is connected；Additionally, the second feed probes 34 and the 4th layer of microstrip antenna and bottom feeding network
Metal ground plate and underlying dielectric substrate 52 are not contacted.It is two during the 3rd 44 actual setting of feed probes, its top and the 4th
The distributing point of layer microband paste 41 is connected, and sequentially passes through the 4th layer of medium substrate 42 and bottom feeding network and export with corresponding
Interface is connected.
As the emphasis of the present invention, as shown in figures 2-6, on the one hand, apex drive hole 13 itself is both as apex drive
The placement hole that probe 14 wears, and the fastening of the stacking fastening of relying of the microstrip antenna as each stacking or even bottom feeding network
Hole, so as to, by way of one dual-purpose, can be effectively ensured the brief of global facility while arrangement works reliability is guaranteed
Change and densification.In addition, apex drive hole 13 is located at the vertical central axis of total, without the need for extra shielding metal
Change via, this also causes the functional reliability of position apex drive probe 14 in the inner and isolation to be all effectively guaranteed.
On the other hand, it is being available for outside the power feed hole that feed probes wear, the present invention there also is provided short circuit metallic via.Specifically,
For the first power feed hole 23 for wearing for the first feed probes 24, the present invention is micro- on 31 antenna of third layer microband paste and the 4th layer
Three group of first short circuit metallic via 25 of setting with coaxially running through on 41 antenna of paster, and three group of first short circuit metallic mistake
Hole 25 and the first power feed hole 23 are co-located on the same face of cylinder with apex drive hole 13 as axis, while three groups of short circuit metallic
Change via and the first power feed hole 23 the duct positioned at 31 antenna of third layer microband paste and the 4th layer of 41 antenna of microband paste that
This assumes 90 ° of angle distributions, the final concordance for ensureing each spacing.In the same manner, for for wearing for the second feed probes 34
Two power feed hole 33, the three group of second short circuit metallic via of setting for equally coaxially running through on the 4th layer of 41 antenna of microband paste
35, and three groups of short circuit metallic vias and the second power feed hole 33 are co-located at the same cylinder with apex drive hole 13 as axis
On face, at the same three group of second short circuit metallic via 35 and the second power feed hole 33 at the 4th layer of 41 antenna of microband paste
Duct assumes 90 ° of angle distributions of circumference.
It is briefly described as follows the operation principle of antenna of the present invention：
The present invention is using being laminated the ground floor microstrip antenna of connection, second layer microstrip antenna, third layer micro-strip from top to bottom
Antenna, the 4th layer of microstrip antenna and bottom feeding network composition Anneta module, realize L frequency range and the S frequency range of a Big Dipper generation, the Big Dipper
The signal of secondary B1, B3 frequency range and GPS L1 frequency range is received.This Anneta module is using high-k, low dielectric loss
Microwave composite base plate is realized using short in miniaturization, and the superimposing technique using multi-layer microstrip antenna center superposition and medium substrate
Metallize via on road, improves the isolation of each output port further.Wherein；
Ground floor microstrip antenna works in S frequency, using single-point feedback mode.Cut by square patch on the diagonal
The form of triangle realizes right-handed circular polarization, and the output that signal is transferred to bottom feeding network by apex drive probe 14 connects
Mouth is received.
Second layer microstrip antenna works in L frequency, using single-point feedback on the diagonal.In square patch loaded microstrip
Minor matters 21a realize left-hand circular polarization, and signal is launched by the first feed probes 24 by the interface of bottom feeding network.
Third layer microstrip antenna works in B3 frequency, using single-point feedback and using short circuit at third layer medium substrate 32
Metallization via, eliminates the coupling influence of the first feed probes 24.The shape of triangle is cut on the diagonal by square patch
Formula realizes right-handed circular polarization, and the output interface for again by feed probes, signal being transferred to bottom feeding network afterwards is connect
Receive.
4th layer of microstrip antenna works in B1, L1 frequency, using two point feeding classification.3rd power feed hole 43 is away from apex drive
The axis in hole 13 assumes equidistant and omnidirectional distribution, provides by the ring-shape bridge 53 of bottom feeding network that amplitude is equal, phase
90 ° of two paths of signals, realizes right-handed circular polarization.Short circuit metallic via is adopted at underlying dielectric substrate 52, eliminate first and present
Electric probe 24 and the coupling influence of the second feed probes 34, so as to the miniature requirement beneficial to current antenna.
Claims (7)
1. a kind of multifrequency navigation terminal antenna, it is characterised in that：This antenna includes from top to bottom and successively lamellar arranged stacked
Ground floor microband paste (11), ground floor medium substrate (12), second layer microband paste (21), second layer medium substrate (22),
Third layer microband paste (31), third layer medium substrate (32), the 4th layer of microband paste (41), the 4th layer of medium substrate (42) with
And bottom feeding network；Wherein, ground floor microband paste (11) and ground floor medium substrate (12) are constituted and work in the of S frequency
One layer of microstrip antenna, the second layer that second layer microband paste (21) works in L frequency with second layer medium substrate (22) composition is micro-
Band antenna, third layer microband paste (31) constitutes the third layer micro-strip day for working in B3 frequency with third layer medium substrate (32)
Line, the 4th layer of microband paste (41) constitutes the 4th layer of micro-strip day for working in B1 and L1 frequency with the 4th layer of medium substrate (42)
Line；
The center arrangement top layer distributing point of ground floor microband paste (11), by the vertical ground floor microband paste of top layer distributing point
(11) place plane and sequentially pass through ground floor medium substrate (12), second layer microband paste (21), second layer medium substrate
(22), third layer microband paste (31), third layer medium substrate (32), the 4th layer of microband paste (41), the 4th layer of medium substrate
(42) apex drive hole (13) is provided with, apex drive hole (13) are metallization via, apex drive probe (14) is coaxially arranged
In apex drive hole (13), the two ends of apex drive probe (14) connect apex drive point respectively and are located at bottom feeding network
The output interface at place；
Second layer microband paste (21) place arranges the first distributing point, by the first distributing point vertical second layer microband paste (21) institute
Plane sequentially pass through second layer medium substrate (22), third layer microband paste (31), third layer medium substrate (32), the 4th
Layer microband paste (41), the 4th layer of medium substrate (42) are provided with the first power feed hole (23), and the first power feed hole (23) is metallization
Via, the first feed probes (24) are coaxially arranged in the first power feed hole (23), and the two ends of the first feed probes (24) connect respectively
Connect the first distributing point and the output interface at bottom feeding network；This antenna is also included through third layer microstrip antenna and
First short circuit metallic via (25) of four layers of microstrip antenna, the first short circuit metallic via (25) is the three groups, first short circuit gold
Categoryization via (25) is in the same cylinder with apex drive hole (13) axis as axle center with the axis of the first power feed hole (23)
On face and the first short circuit metallic via (25) is uniform along above-mentioned cylindrical surface peripheral with the axis of the first power feed hole (23)；
Third layer microband paste (31) place arranges the second distributing point, by the second distributing point vertical third layer microband paste (31) institute
Third layer medium substrate (32), the 4th layer of microband paste (41) and the 4th layer of medium substrate (42) are sequentially passed through in plane to set
The second power feed hole (33) is equipped with, the second power feed hole (33) is metallization via, the second feed probes (34) are coaxially arranged in second
In power feed hole (33), the two ends of the second feed probes (34) connect the second distributing point and defeated at bottom feeding network respectively
Outgoing interface；This antenna also includes the second short circuit metallic via (35) through the 4th layer of microstrip antenna, the second short circuit metallic
Via (35) is three groups, and the second short circuit metallic via (35) is in the axis of the second power feed hole (33) with apex drive hole
(13) axis is on the same face of cylinder in axle center and the axis edge of the second short circuit metallic via (35) and the second power feed hole (33)
Above-mentioned cylindrical surface peripheral is uniform；
4th layer of microband paste (41) place arranges the 3rd distributing point, and the 3rd feed probes (44) pass through the 4th layer of medium substrate (42)
And connect the 3rd distributing point and the output interface at bottom feeding network；
On first power feed hole (23) positioned at third layer microstrip antenna and a sector hole Lu Yu of the 4th layer of microstrip antenna
Be provided with isolation first medium set (a) each other between one feed probes (24), on the second power feed hole (33) positioned at the 4th
One sector hole road of floor microstrip antenna be provided with second medium set (b) isolated each other between the second feed probes (34)；First is short
The aperture on road metallization via (25) is equal to first medium set (a) external diameter；Second short circuit metallic via (35) aperture is equal to the
Second medium set (b) external diameter.
2. a kind of multifrequency navigation terminal antenna according to claim 1, it is characterised in that：The ground floor microband paste
(11), ground floor medium substrate (12), second layer microband paste (21), second layer medium substrate (22), third layer microband paste
(31), third layer medium substrate (32), the 4th layer of microband paste (41), the 4th layer of medium substrate (42) and bottom feeding network
Profile is square sheets platy structure；At the 4th layer of microstrip antenna along apex drive hole (13) axis around distribution
Each adjacent first short circuit metallic via (25), the first power feed hole (23), the second short circuit metallic via (35), the second power feed hole
(33) to each other away from equalization between.
3. a kind of multifrequency navigation terminal antenna according to claim 2, it is characterised in that：The ground floor microband paste
(11) profile is constructed in " mouth " shape, and the middle section level of the side inwall of ground floor microband paste (11) is to apex drive hole
(13) direction is extended with rectangle minor matters (11a), and the elongated end of rectangle minor matters (11a) arranges the apex drive point, and described first
Layer (11) two relative angle end of microband paste is all additionally provided with corner cut；At wherein two opposite side of second layer microband paste (21) pair
Arrangement is claimed to be convexly equipped with the micro-band branch (21a) of rectangle；The two of which diagonal angle of third layer microband paste (31) equally sets
Put corner cut.
4. a kind of multifrequency navigation terminal antenna according to Claims 2 or 3, it is characterised in that：The bottom feeding network
Including from top to bottom stacking gradually the metal ground plane (51) of arrangement, underlying dielectric substrate (52), annular microstrip line electric bridge (53)
And it is arranged in the output interface at annular microstrip line electric bridge (53) place；First short circuit metallic via (25), the first feed
Hole (23), the second short circuit metallic via (35), the second power feed hole (33), the 3rd feed that walks for the 3rd feed probes (44)
Hole (43) and apex drive hole (13) are all through above-mentioned metal ground plane (51) and underlying dielectric substrate (52)；Micro- along annular
Four straight flanges cinctures of Stripline hybrid (53) are densely covered with metallization via of a circle the 3rd (54), the 3rd metallization via (54)
Top connection metal ground plane (51).
5. a kind of multifrequency navigation terminal antenna according to claim 4, it is characterised in that：3rd power feed hole (43) is
The twice that the axis of parallel apex drive hole (13) is arranged, the axis of the 3rd power feed hole (43) of twice is located at apex drive hole
(13) axis is on the same face of cylinder in axle center, and the axle of the axis of the 3rd power feed hole (43) of twice and apex drive hole (13)
The vertical line of line is perpendicular to one another.
6. a kind of multifrequency navigation terminal antenna according to claim 5, it is characterised in that：Ground floor medium substrate (12)
Dielectric constant is 9, long and width a size of 26mm × 26mm, and plate body thickness is 1.5mm；The dielectric of second layer medium substrate (22) is normal
Number is 6, long and width a size of 48mm × 48mm, and plate body thickness is 1.5mm；The dielectric constant of third layer medium substrate (32) is
10.2, long and width a size of 48mm × 48mm, plate body thickness is 6mm；The dielectric constant of the 4th layer of medium substrate (42) is 7, long
With width a size of 48mm × 48mm, plate body thickness is 2mm；The dielectric constant of underlying dielectric substrate (52) is 4.6, long and wide size
For 54mm × 54mm, plate body thickness is 1mm；The diameter of each feed probes is 0.9mm, the first short circuit metallic via (25) with
And the second a diameter of 3mm of short circuit metallic via (35), the first feed probes (24) axis is away between apex drive hole (13) axis
Away from for 3.5mm～3.5mm, the second feed probes (34) axis is that the 8mm, the 3rd feed is visited away from apex drive hole (13) axis spacing
Pin (44) axis is 12mm away from apex drive hole (13) axis spacing.
7. a kind of multifrequency navigation terminal antenna according to claim 1 or 2 or 3, it is characterised in that：Each medium substrate is micro-
Ripple composite base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610942413.0A CN106450729A (en) | 2016-11-01 | 2016-11-01 | Multi-frequency navigation terminal antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610942413.0A CN106450729A (en) | 2016-11-01 | 2016-11-01 | Multi-frequency navigation terminal antenna |
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| CN106450729A true CN106450729A (en) | 2017-02-22 |
Family
ID=58178257
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610942413.0A Withdrawn CN106450729A (en) | 2016-11-01 | 2016-11-01 | Multi-frequency navigation terminal antenna |
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| CN (1) | CN106450729A (en) |
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| CN106953157A (en) * | 2017-04-17 | 2017-07-14 | 湖南纳雷科技有限公司 | A kind of antenna assembly for radar sensor |
| CN107230832A (en) * | 2017-07-21 | 2017-10-03 | 广东工业大学 | A kind of new feeding network for double frequency precision navigation antenna |
| CN108493593A (en) * | 2018-05-21 | 2018-09-04 | 南京信息工程大学 | A kind of polarization reconfigurable antenna array based on feeding network |
| CN108808233A (en) * | 2018-06-06 | 2018-11-13 | 深圳市深大唯同科技有限公司 | A kind of high-gain broadband dual-polarized patch antenna |
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| CN110462929A (en) * | 2017-03-14 | 2019-11-15 | 阿莫技术有限公司 | Multiple-layered patches antenna |
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| CN114171907A (en) * | 2021-11-30 | 2022-03-11 | 浙江时空道宇科技有限公司 | Dual-frequency low-orbit occultation GNSS antenna |
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| CN108493593A (en) * | 2018-05-21 | 2018-09-04 | 南京信息工程大学 | A kind of polarization reconfigurable antenna array based on feeding network |
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| CN112397889A (en) * | 2019-08-13 | 2021-02-23 | 三星电机株式会社 | Chip antenna |
| CN112751178A (en) * | 2019-10-29 | 2021-05-04 | 北京小米移动软件有限公司 | Antenna unit, array antenna and electronic equipment |
| CN111009726A (en) * | 2019-12-31 | 2020-04-14 | 上海海积信息科技股份有限公司 | Multi-frequency band antenna |
| CN112332115A (en) * | 2020-10-28 | 2021-02-05 | 北京机电工程研究所 | Multi-mode multifunctional communication navigation common-caliber integrated antenna |
| CN112332115B (en) * | 2020-10-28 | 2024-05-03 | 北京机电工程研究所 | Multi-mode multifunctional communication navigation common-caliber integrated antenna |
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