CN109565112A - Antenna assembly - Google Patents
Antenna assembly Download PDFInfo
- Publication number
- CN109565112A CN109565112A CN201780047843.9A CN201780047843A CN109565112A CN 109565112 A CN109565112 A CN 109565112A CN 201780047843 A CN201780047843 A CN 201780047843A CN 109565112 A CN109565112 A CN 109565112A
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- Prior art keywords
- dielectric layer
- base plate
- antenna assembly
- face
- dielectric
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Classifications
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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
- H01Q1/40—Radiating elements coated with or embedded in protective material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/08—Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
-
- 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
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- 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
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
- H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
- H01Q5/364—Creating multiple current paths
- H01Q5/371—Branching current paths
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/46—Manufacturing multilayer circuits
Abstract
Antenna assembly (1E) has the first~the n-th+2 dielectric layer (Sn+2) (2≤n), the first~the n-th patch electrode (P1) and grounding electrode (P), m patch electrode (Pm) (1≤m≤n-1) has two faces of size corresponding with m frequency, a face in two faces connects with m dielectric layer (Sm), another face in two faces connects with m+1 dielectric layer (Sm+1), m+1 patch electrode (Pm+1) has two faces of size corresponding with m+1 frequency, a face in two faces connects with the m+1 dielectric layer (Sm+1), another face in two faces connects with m+2 dielectric layer (Sm+2), grounding electrode (P) has the face to connect with the (n+1)th dielectric layer (Sn+1) With the face to connect with the n-th+2 dielectric layer (Sn+2), the first dielectric layer (S1) includes dielectric base plate.
Description
Technical field
This disclosure relates to antenna assembly.
Background technique
Antenna assembly (hereinafter also referred to " antenna ".) it is to determine that the important composition of the communication performance of wireless communication system is wanted
Element.Antenna has various types, has paster antenna in the antenna for realizing single side directive property.Such as Patent Document 1 discloses
The structure example of paster antenna.
Citation
Patent document
Patent document 1: International Publication No. 2004/095639
Summary of the invention
Subject to be solved by the invention
The paster antenna of the earthy conductor portion construction opposed with patch conductor portion is described in patent document 1.At this
In the paster antenna of construction, dielectric dielectrics such as the printed base plates of conductor portions such as earthy conductor portion, patch conductor portion are supported
Constant and dielectric loss angle tangent (degree of the electric energy loss in capacitor) determine the radiation efficiency of paster antenna.For example,
If dielectric constant is big, the wavelength for flowing through the electric current in patch conductor portion shortens, and current density improves, and conductor losses increases.This
Outside, if dielectric loss angle tangent is big, increase through the dielectric loss of the electromagnetic wave in dielectric.
However, paster antenna documented by patent document 1 has that assembling cost is big.In addition, in order to by patch day
Line is used for wireless communication system (especially mobile body communication system), it is desirable that the paster antenna of wide directive property.
The disclosure is to complete in view of the above problems, is easy and can will make its purpose is to provide a kind of assembling operation
This is caused to inhibit lower, while the patch antenna technical that directive property is wide.
Means for solving the problems
In order to solve the above problems, as one of representative invention, a kind of antenna assembly is provided, has the first~the
N+2 dielectric layer (2≤n), the first~the n-th patch electrode and grounding electrode, m patch electrode (1≤m≤n-1) have with
Two faces of the corresponding size of m frequency, a face in described two faces connects with m dielectric layer, in described two faces
Another face connect with m+1 dielectric layer, m+1 patch electrode have size corresponding with m+1 frequency two faces,
A face in described two faces connects with the m+1 dielectric layer, another face in described two faces and m+2 electricity are situated between
Matter layer connects, and the grounding electrode has the face that connects with the (n+1)th dielectric layer and connects with n-th+2 dielectric layer
Face, first dielectric layer include dielectric base plate.
This specification includes Japanese patent application No. 2016-221218 public affairs on the basis of the priority as the application
Open content.
Invention effect
According to the disclosure, it is capable of providing a kind of assembling operation and is easy and is able to suppress manufacturing cost, while directive property is wide
Patch antenna technical.Project, structure and effect other than the above become clear by the explanation of the following embodiments and the accompanying drawings.
Detailed description of the invention
Fig. 1 is the figure that outlined antenna assembly involved in embodiment 1.
Fig. 2 is the figure for each component that exploded representation antenna assembly is included.
Fig. 3 is the figure for indicating the section in the face parallel with yz plane of antenna assembly.
Fig. 4 is the figure for illustrating the supporting construction of antenna assembly.
Fig. 5 is the main view of the upper surface of the first dielectric base plate.
Fig. 6 is the main view of the lower surface of the 4th dielectric base plate.
Fig. 7 is the figure for indicating to be equipped with the section of antenna assembly for the electronic component for sending high-frequency signal.
Fig. 8 is the figure for indicating the internal structure of electronic circuit.
Fig. 9 is the figure that outlined antenna assembly involved in embodiment 2.
Figure 10 is the figure that outlined antenna assembly involved in embodiment 3.
Figure 11 is the figure that outlined antenna assembly involved in embodiment 4.
Figure 12 is the figure for indicating the design example of antenna assembly.
Figure 13 is the main view of constituent element possessed by antenna assembly.
Figure 14 is the figure for indicating the analog result of antenna performance.
Figure 15 is the figure for indicating the radiation pattern of the antenna assembly under two frequencies.
Figure 16 is the figure for indicating the antenna assembly of variation 2.
Figure 17 is the figure for indicating the structure of antenna assembly of earlier application.
Specific embodiment
[summary]
Present inventor proposes and is pasting shown in Figure 17 in the Japan Patent 2016-002177 of earlier application
The antenna assembly of dielectric base plate 203 and gap G is provided between plate electrode 201 and grounding electrode 202.As shown in figure 17, on
Antenna assembly is stated to have by patch electrode 201 that two dielectric base plates 203 and 204 fold and be formed in dielectric base plate 205
On grounding electrode 202.Antenna assembly with above structure can be easily manufactured, and be high-gain and wide directive property
, but due to only having a patch electrode 201, signal is received using the electromagnetic wave of single-frequency.
However, fixed in order to improve the whole world as GPS (Global Positioning System: global positioning system)
The stability of positioning in the system of position, it is known to the antenna technology of signal is received using the electromagnetic wave of two frequencies.
However, in existing antenna assembly corresponding with two frequencies, it is difficult to fully meet in industrial applications etc.
Required by the high-precision GNSS (Global Navigation Satellite System: Global Navigation Satellite System) utilized
Gain and directive property.
Therefore, present inventor improves the antenna assembly being previously proposed, and proposes a kind of high-gain and wide direction
Property, and receive using the electromagnetic wave of multiple frequencies the antenna technology of signal.
Hereinafter, being illustrated based on attached drawing to embodiment of the disclosure.In addition, after embodiment of the disclosure is not limited to
The embodiment stated, is able to carry out various modifications within the scope of its technical ideas.In addition, in the explanation of aftermentioned each embodiment
The corresponding part of each figure used marks identical appended drawing reference, and the repetitive description thereof will be omitted.
In addition, in the present specification, term as so-called dielectric layer, sometimes referred to as dielectric base plate itself, sometimes
Also refer to air layer.Dielectric layer also refers to layer obtained from layered dielectric substrate and air layer.Dielectric layer also may include electricity
Dielectric other than medium substrate and air layer.
<embodiment 1>
Fig. 1 is the figure that outlined antenna assembly 1 involved in embodiment 1.The antenna assembly 1 of the present embodiment has
One dielectric base plate 11, the second dielectric base plate 12, third dielectric base plate 13, the 4th dielectric base plate 14, the first patch electricity
Pole 15, the second patch electrode 16 and grounding electrode 17.The each component that antenna assembly 1 has is for example substantially parallel respectively
Ground configuration.In addition, being provided with air layer G between third dielectric base plate 13 and grounding electrode 17.Hereinafter, referring to Fig. 2 to day
The each component that line apparatus 1 is included is illustrated.
Fig. 2 is the figure for each component that exploded representation antenna assembly 1 is included.First dielectric base plate 11 be with a thickness of
T1 and the rectangular tabular component with upper surface 11a and lower surface 11b.Second dielectric base plate 12 is that with a thickness of t2 and have
The rectangular tabular component of upper surface 12a and lower surface 12b.Third dielectric base plate 13 is that with a thickness of t3 and have upper surface
The rectangular tabular component of 13a and lower surface 13b.4th dielectric base plate 14 is the side with upper surface 14a and lower surface 14b
The tabular component of shape.
First dielectric base plate 11, the second dielectric base plate 12, third dielectric base plate 13 and the 4th dielectric base plate
14 material is FR4, propylene, teflon (registered trademark) etc..It is preferable to use using glass epoxy resin as the print of material for each substrate
Brush substrate, but acrylic panel, ABS (making acrylonitrile, butadiene, styrene polymerization and the resin formed), glass also can be used
The dielectrics such as plate.
The size LS of each substrate is larger than the size L of grounding electrode 17, needs to take in the frequency of use of antenna assembly 1
Enough sizes.In other words, the size LS of each substrate is compared with the size of the first patch electrode 15 and the second patch electrode 16
It is sufficiently large.Preferably, the size LS of each substrate is ideally the size of the 2 times or more of the size of patch electrode.But paying attention to
It can also be further decreased in the case where the miniaturization of antenna assembly 1.The size LS of each substrate is for example 1GHz in frequency of use
In the case where left and right, preferably 100~300mm or so.
Also it can be configured to the first dielectric base plate 11, the second dielectric base plate 12, third dielectric base plate 13 and the 4th
Dielectric base plate 14 is respective of different sizes.In such a case, it is possible to the 4th dielectric base plate that grounding electrode 17 will be configured
14 size is set on the basis of 2 times of the size of patch electrode according to above-mentioned example, the first dielectric base plate 11,
As long as two dielectric base plates 12 and third dielectric base plate 13 can configure the first patch electrode 15 and the second patch electricity
The size of pole 16 can be smaller than this.
First patch electrode 15 is by circular thin tabular component or film with upper surface 15a and lower surface 15b
It constitutes.Second patch electrode 16 is by circular thin tabular component or film structure with upper surface 16a and lower surface 16b
At.The outer diameter L1 and L2 of first patch electrode 15 and the second patch electrode 16 is same as common paster antenna, by wireless
The carrier frequency of system determines.It is usually one side that patch electrode is set based on the length of 1/2 wavelength of carrier frequency mostly
Length.
Based on the wavelength in free space, the length on one side of patch electrode is for example in the case where 920MHz frequency band
140mm or so is 78mm or so in the case where 1.6GHz frequency band.But since antenna assembly 1 will receive each electrode of bearing
Wavelength caused by the influence of the dielectric constant of dielectric base plate shortens, and therefore, the size ratio of actual patch electrode is based on upper
State size decimal %~tens of % or so of the wavelength in free space.
In the present embodiment, the outer diameter L1 of the first patch electrode 15 is smaller than the outer diameter L2 of the second patch electrode 16.In other words,
The wave for the electromagnetic wave that first patch electrode 15 receives or the wavelength of the electromagnetic wave of radiation is received or radiated than the second patch electrode 16
Length.Alternatively, the first patch electrode 15 receives or the frequency of the electromagnetic wave of radiation is higher than the second patch electrode 16 and receives or radiate
Electromagnetic wave frequency.
As long as the shape of the first patch electrode 15 and the second patch electrode 16 can obtain desired characteristic, so that it may
It is the shape other than circle.The shape of first patch electrode 15 and the second patch electrode 16 can for example be positive the side n shape (n 4
More than).First patch electrode 15 and the second patch electrode 16 are formed as the tabular components such as copper, aluminium, gold or film.
Grounding electrode 17 is the rectangular thin tabular component or film with upper surface 17a and lower surface 17b.Ground connection
Electrode 17 is formed as the tabular components such as copper, aluminium, gold or film.Grounding electrode 17 is formed in the upper surface of the 4th dielectric base plate 14
The substantially entire surface of 14a.Therefore, the size when vertical view of grounding electrode 17 is than the first patch electrode 15 and the second patch electrode
Size when 16 vertical view is big.Air layer G with a thickness of dg, such as by the quadrangle of antenna assembly be arranged bar make third electricity be situated between
Matter substrate 13 separates with grounding electrode 17 and is arranged.The effective dielectric constant of dielectric layer can be adjusted by setting air layer G
Section.
Fig. 3 is the cross-sectional view in the face parallel with yz plane of antenna assembly 1.As shown in figure 3, the first dielectric base plate 11
Lower surface 11b connects with the upper surface 12a of the second dielectric base plate 12, and the first patch electrode 15 is sandwiched in the first dielectric base plate
11 and second between dielectric base plate 12.The lower surface 12b of second dielectric base plate 12 and the upper table of third dielectric base plate 13
Face 13a connects, and the second patch electrode 16 is sandwiched between the second dielectric base plate 12 and third dielectric base plate 13.
Grounding electrode 17 is opposed with the lower surface 13b of third dielectric base plate 13 across air layer G.Grounding electrode 17 configures
At the upper surface 14a of the 4th dielectric base plate of covering.In the present embodiment, the upper table of grounding electrode 17 and the 4th dielectric base plate
Face 14a connects, but grounding electrode 17 can also be separated with the upper surface 14a of the 4th dielectric base plate.
Antenna assembly 1 can be by the thickness t1 of the first dielectric base plate 11, the thickness t2 of the second dielectric base plate 12, third
The thickness d g of the thickness t3 and air layer G of dielectric base plate 13 come design action gain, bandwidth as design parameter.t1,
T2, t3 and dg are designed in following range.
[mathematic(al) representation 1]
Here, λ be the first patch electrode 15 radiation or received electromagnetic wave free space in wavelength X 1, the second patch
The average value of wavelength X 2 or λ 1 and λ 2 in the free space of the radiation of electrode 16 or received electromagnetic wave.The formula of upper section is to be used for
The condition that antenna assembly 1 is acted as microcell antenna, the formula of lower section are the conditions for meeting the requirement in design.It is above-mentioned
The value of parameter is for example worth using corresponding with applied wireless communication system.
Fig. 4 is the figure for illustrating the supporting construction of antenna assembly 1.In the case of figure 4, the first dielectric base plate 11,
Second dielectric base plate 12 and third dielectric base plate 13 are configured in the bar (column portion) 8 of quadrangle and screw 9 is supported and fixed.Such as
Shown in Fig. 4, by the quadrangle configuration bar 8 and screw 9 in each substrate, it can be avoided and pasted to from the first patch electrode 15 and second
The electromagnetic wave that plate electrode 16 radiates causes adverse effect, is able to suppress the reduction of antenna performance and supporting substrates.Additionally, it is preferred that bar
8 and screw 9 be made of resin, but in the case where needing intensity or made of metal.
But, as long as the allocation position of bar 8 and screw 9 will not be to from the first patch electrode 15 and the second patch electrode
The electromagnetic wave of 16 radiation generates dysgenic position, such as also can be only fitted to any position of the marginal portion of each substrate
It sets.Such as, it is believed that the input impedance of the central portion of the in-plane of the first patch electrode 15 and the second patch electrode 16 is 0,
Theoretically, even if contacting conductor, dielectric, the influence to antenna performance is also small, therefore, being capable of configuration bar 8 and screw 9.
As described above the central portion of the first patch electrode 15 and the second patch electrode 16 be provided with bar 8 the case where
Under, it can reduce the flexure of the substrate as caused by hollow structure, be able to maintain that high antenna performance.Especially in industrial applications etc.
In the case where harsh use condition, it is contemplated that many mechanical shock can be applied, it is sometimes desirable to such construction for improving intensity.
In addition, being provided with four bars 8 in Fig. 4, but according to conditions such as required intensity, costs, the number of bar can also be increased or decreased
Amount.
[details of antenna assembly 1]
In the above description, it is omitted and is illustrated with conducting wire that each electrode of antenna assembly 1 is connect.It is practical
On, in order to make antenna assembly 1 work, need the first patch electrode 15 and the second patch electrode 16 and 17 electricity of grounding electrode is exhausted
Edge is powered to the first patch electrode 15 and the second patch electrode 16.Hereinafter, to it is practical utilize antenna assembly 1 when required confession
The connection method of the conducting wire, earthy required conducting wire of electricity is illustrated.
Fig. 5 is the main view of the upper surface 11a of the first dielectric base plate 11.As shown in figure 5, in the first dielectric base plate 11
Upper surface 11a be provided with the first signal pad for being electrically connected with the first patch electrode 15 and the second patch electrode 16
The through-hole 11c of portion 11d and perforation the first signal welding disk 11d.Through-hole 11c is routed covering, the first patch by the through-hole of electric conductivity
Plate electrode 15 and the second patch electrode 16 are electrically connected with the signal wire 2 (referring to Fig. 7) of perforation through-hole 11c.Signal wire 2 can lead to
It crosses and is welded and fixed with welding disk 11d in the first signal.In addition, through-hole 11c is arranged in by the first dielectric base plate 11
The position that central part deviates.
Fig. 6 is the main view of the lower surface 14b of the 4th dielectric base plate 14.As shown in fig. 6, in the 4th dielectric base plate 14
Lower surface 14b be formed with the earthy welding disk 14d for being electrically connected with grounding electrode 17.In earthy welding disk 14d shape
At have through-hole 14c and multiple via holes wiring 14e.Via hole wiring 14e is formed as surrounding through-hole 14c.Grounding electrode 17 is via ground connection
It is electrically connected with welding disk 14d with the conducting wire for ground connection.In the same manner as the through-hole 11c that the first dielectric base plate 11 is set, lead to
Hole 14c is arranged in by the position of the central part deviation of the 4th dielectric base plate 14.
In the inside of earthy welding disk 14d, second signal welding disk 14g, this point are formed with across clearance portion 14f
Fig. 6 is not shown.That is, earthy welding disk 14d and second signal are separated with welding disk 14g by clearance portion 14f.Therefore, earthy
Welding disk 14d is not electrically connected with second signal with welding disk 14g.In other words, earthy welding disk 14d and second signal pad
Portion 14g insulation.Through-hole 14c is arranged in second signal in welding disk 14g.
Equally, also in the second dielectric base plate 12, third dielectric base plate 13, the first patch electrode 15, the second patch electricity
Through-hole 12c, 13c, 15c, 16c and 17c is arranged in pole 16 and grounding electrode 17.Antenna assembly 1 is designed to, in each dielectric
Substrate and when electrode contraposition, the position consistency of each through-hole and become a through hole.Above-mentioned letter is inserted into above-mentioned through hole
Number line 2, the first patch electrode 15 and the second patch electrode 16 are electrically connected with signal wire 2 and are powered.
In addition, the diameter design that the through-hole 17c of grounding electrode 17 is arranged in must be than being arranged in the 4th dielectric base plate 14
The diameter of through-hole 14c is big.It is short-circuit thereby, it is possible to prevent signal wire 2 from contacting with grounding electrode 17.
Fig. 7 is the figure for indicating to be equipped with the section of antenna assembly 1 for the electronic component for sending high-frequency signal.Above-mentioned section is
Section when being cut off along Fig. 5 and AB line shown in fig. 6.In antenna assembly 1, in the upper surface of the first dielectric base plate 11
The position for the top for being equivalent to the first patch electrode 15 in 11a is provided with supply terminals 3, high by 3 input and output of supply terminals
Frequency signal.
Supply terminals 3 for example in order to the first above-mentioned signal with welding disk 11d fixed signal line 2 Nian Jie solder 4
Part abut.In case of the present embodiment, the impedance of supply terminals 3 is 50 Ω.Supply terminals 3 is chosen to be high-frequency signal efficiency
The position best entered.In case of the present embodiment, as described above, supply terminals 3 is chosen to be from the first patch electrode 15
And second patch electrode 16 center slightly offset from position.
As described above, signal wire 2 penetrates through the through-hole for being set to each dielectric base plate and is welded by solder 4 and the first signal
Pan portion 11d and second signal are fixed with welding disk 14g.It is set to the first dielectric base plate 11 and the second dielectric base plate 12
The inside of through-hole 11c and 12c covered by conductor, 16 electricity of signal wire 2 and the first patch electrode 15 and the second patch electrode
Connection.
On the other hand, the diameter design that the through-hole 17c of grounding electrode 17 is arranged in must be than being arranged in the 4th dielectric base plate
More greatly, signal wire 2 is not contacted with grounding electrode 17 and is insulated 14 through-hole 14c.That is, the first patch electrode 15 and the second patch
Plate electrode 16 is electrically connected via signal wire 2 with second signal with welding disk 14g, is electrically insulated with grounding electrode 17.In addition, ground connection electricity
Pole 17 is electrically connected via multiple via holes wiring 14e with earthy welding disk 14d, is electrically insulated with second signal with welding disk 14g.
If antenna assembly 1 is set as structure as described above, in assembling aerial device 1, signal wire 2 can be welded
In the lower surface side 14b in the upper surface side 11a (outside of antenna assembly 1) and the 4th dielectric base plate of the first dielectric base plate 11
(outside of antenna assembly 1), so as to be easy to carry out assembling operation.
With further reference to Fig. 7, earthy welding disk 14d and second signal are illustrated with welding disk 14g.Second
Signal is formed with microstrip line 14h with welding disk 14g, for example, can connect with the electronic circuit 5 comprising low noise amplifier circuit.
Since earthy welding disk 14d and second signal are not contacted each other with welding disk 14g across clearance portion 14f,
As shown in fig. 7, earthy welding disk 14d's is shaped as U-shaped, to surround second signal welding disk 14g.Due to connecing
Ground welding disk 14d and second signal welding disk 14g are above-mentioned shape, and therefore, microstrip line 14h can be transmitted high-frequency signal.
In addition, clearance portion 14f is designed to make the characteristic impedance of microstrip line 14h to become desired value (usually 50 Ω).
In the example shown in Fig. 7, the ground terminal 5a1 of earthy welding disk 14d and electronic circuit 5 (circuit element) connects
It connects, second signal is with welding disk 14g via the signal terminal (input terminal) of microstrip line 14h and electronic circuit 5 (circuit element)
5a2 connection.In addition, due to being formed with grounding electrode 17 in the upper surface 14a of the 4th dielectric base plate 14, it configures at it
The electronic circuit 5 of lower surface 14b separates on electromagnetic field with antenna part.
Fig. 8 is the figure for indicating the internal structure of electronic circuit 5.Fig. 8 is to constitute the active day for having used low-noise amplifier
The structural example of the electronic circuit 5 of the case where line.Electronic circuit 5 successively has from input side (removes de-electromation in Fig. 7 with electrode 6
The part of circuit 5) connection antenna terminal 5a, output terminal 5b, low-noise amplifier (LNA) 5c, bandpass filter (BPF)
5d, bias device (Bias Tee) 5e.Output terminal 5b is connect with as the external demodulation IC7 (demodulator) etc. for receiving circuit.
[effect possessed by antenna assembly 1 involved in embodiment 1]
As described above, antenna assembly 1 has the first patch electrode 15 and the second patch electrode 16, it is corresponding with multiple frequencies
Antenna assembly.Antenna assembly 1 involved in embodiment 1 has the upper surface 15a and the first dielectric of the first patch electrode 15
The structure that substrate 11 connects.In this way, antenna assembly 1 can adjust the wavelength shortening rate for flowing through the electric current of the first patch electrode 15 and
Expand directive property.
In addition, antenna assembly 1 is by adjusting above-mentioned wavelength shortening rate, it is traditional thread binding with the day without the first dielectric base plate 11
It sets and compares, the size on one side of the first patch electrode 15 can be reduced, as a result, antenna assembly 1 can be made to minimize.This
Outside, it since antenna assembly 1 can reduce the area of the first patch electrode 15, is flowed through into the first patch electrode 15 of decrease
The direction generation of the beam forming effect for the electromagnetic field that electric current is radiated acts on, and can expand directive property.
Since antenna assembly 1 is wide directive property, it is suitable for use in such as wireless communication system.In particular,
In mobile body communication system, due to that can not determine the positional relationship (direction) of transmitter and receiver mostly, wide directive property
Antenna assembly 1 be suitable for use in mobile body communication system.
In addition, in the manufacturing process of antenna assembly 1, by (outer in the upper surface side 11a of the first dielectric base plate 11
Side) and the 4th dielectric base plate the lower surface side 14b (outside) welding, signal wire 2 can be fixed on to the first dielectric base
Plate 11 and the 4th dielectric base plate 14.That is, weld job can be carried out in the face in the outside of two printed base plates, can be easy
Ground carries out weld job.This can be such that the assembling operation of antenna assembly 1 is easy, and help to reduce manufacturing cost.
In addition, the outer diameter of first patch electrode 15 is than the second patch electrode in the antenna assembly 1 involved in embodiment 1
16 outer diameter is small.Antenna assembly 1 can obtain the antenna performance of high-gain as a result,.
In addition, antenna assembly 1 involved in embodiment 1 is as shown in above-mentioned formula 1, it is corresponding with radiation or received electromagnetic wave
The thickness of ground design each component.In this way, the movement gain of antenna assembly 1 becomes larger.
<embodiment 2>
Fig. 9 is the figure that outlined antenna assembly 1A involved in embodiment 2.In the case where Fig. 9, bar is also omited
8 and screw 9.Antenna assembly 1A involved in embodiment 2 difference from example 1 is that, instead of having for earthy
The connection terminal that welding disk 14d and second signal are connect with welding disk 14g with electronic circuit 5, in the 4th dielectric base plate 14
Lower surface 14b coaxial connector 10 is installed.For example product export is made as paster antenna monomer in antenna assembly 1A.
Coaxial connector 10 has signal terminal 10a and ground terminal 10b.The antenna assembly 1 of signal wire 2 and embodiment 1
The case where it is identical, perforation is set to through-hole 11c~17c of each dielectric base plate and each conductor.With antenna involved in embodiment 1
Device 1 is different, and the lower end for the signal wire 2 that the antenna assembly 1A that embodiment 2 is related to has, which is used as, is installed on the 4th dielectric base
The signal terminal 10a of the coaxial connector 10 of the lower surface 14b of plate 14 and expose.In the same manner as the case where signal wire 2 and embodiment 1
It is electrically insulated with grounding electrode 17.
As shown in figure 9, in the antenna assembly 1A involved in embodiment 2, in the lower surface of the 4th dielectric base plate 14
The ground terminal 10b of 14b, coaxial connector 10 are electrically connected via solder 4 with earthy welding disk 14d, via hole wiring 14e.This
Outside, it is set to the grounding electrode 17 of the upper surface 14a of the 4th dielectric base plate 14 and is set to the earthy pad of lower surface 14b
Portion 14d is via the wiring 14e electrical connection of multiple via holes.That is, grounding electrode 17 and the ground terminal 10b of coaxial connector 10 are electrically connected
It connects.
Involved in embodiment 2 in the case where antenna assembly 1A, in assembling aerial device 1A, it can be situated between in the first electricity
The signal terminal 10a (i.e. signal wire 2) of the upper surface side 11a (outside) the welding coaxial connector 10 of matter substrate 11, further, it is possible to
In the ground terminal 10b of the lower surface side 14b (outside) of the 4th dielectric base plate 14 welding coaxial connector 10.
That is, the operation that can be welded in the face in the respective outside of two plate bases, can easily be done above-mentioned operation.
In particular, coaxial connector 10 can be welded from the outside of longitudinal lit-par-lit structure of antenna assembly 1A, day can easily be done
The assembling of line apparatus 1A.As a result, the case where with embodiment 1 is same, in antenna assembly 1A, it also can easily be done
Assembling operation, and can reduce manufacturing cost.
<embodiment 3>
Figure 10 is the figure that outlined antenna assembly 1B involved in embodiment 3.Antenna assembly involved in embodiment 3
1B is that signal wire 2 penetrates through the second dielectric base plate 12, third dielectric base plate 13 and the 4th dielectric base plate 14 but do not penetrate through the
The structure of one dielectric base plate 11.In the case of example 3, supply terminals 3 passes through conductive material (Conductive
Matching it) is directly connected to the first patch electrode 15.Here, silver paste, conductive adhesive etc. can be used in conductive material
The double faced adhesive tape etc. of the electric conductivity such as material, copper strips, aluminium strip.It is of course also possible to be solder.
<embodiment 4>
Figure 11 is the figure that outlined antenna assembly 1C involved in embodiment 4.Antenna assembly 1C shown in Figure 11 exists
There are two supply terminals 3A and supply terminals 3B for the upper surface 11a tool of first dielectric base plate 11.The two supply terminals 3A and 3B
It is the supply terminals that can receive each self-orthogonal polarization wave component, can be used as and be utilized towards polarization diversity antenna.In turn, lead to
Crossing will be synthesized in a manner of 90 degree of phase phase difference in supply terminals 3A and supply terminals 3B received signal, can be also configured to
The antenna of reception of circular polarized.In the present embodiment, it is contemplated that receiving antenna is to be illustrated, but similarly discussion is sending day
It can also directly be applied in line.
<the design example of antenna assembly>
Hereinafter, the specific design example to antenna assembly is illustrated.Here, to for the antenna assembly towards GPS
Situation is illustrated.For example, the first patch electrode 15 and the second patch electrode 16 separately design size, so that centre frequency is
1.59GHz and 1.275GHz.
Figure 12 is the figure for indicating the design example of antenna assembly 1D.Antenna assembly 1D shown in Figure 12 is with flowering structure, that is,
In embodiment 1, the second dielectric base plate 12 is replaced into the second dielectric for being laminated with dielectric base plate 12A and air layer 12B
Layer 120, third dielectric base plate 13 is replaced into stacking, and there are two the third of dielectric base plate 13A and 13B and air layer 13C electricity
Dielectric layer 130.The size of each component described below.
Dielectric base plate 11:150mm × 150mm, thickness 1mm, raw material FR4
Dielectric base plate 12A:150mm × 150mm, thickness 2mm, raw material FR4
Dielectric base plate 13A:150mm × 150mm, thickness 2mm, raw material FR4
Dielectric base plate 13B:150mm × 150mm, thickness 2mm, raw material FR4
Dielectric base plate 14:150mm × 150mm, thickness 2mm, raw material FR4
Air layer 12B: thickness 2mm
Air layer 13C: thickness 2mm
First patch electrode, 15: φ 90mm, circular shape
Second patch electrode, 16: φ 105mm, circular shape
Grounding electrode 17:148mm × 148mm, square configuration
Figure 13 is the main view of constituent element possessed by antenna assembly 1D.As shown in figure 13, the first patch electrode 15 with
And second patch electrode 16 be circular shape, grounding electrode 17 and each dielectric base plate are square configuration.In above design
In the case where value, the analog result of antenna performance shown by antenna assembly 1D and radiation pattern is as shown in Figure 14 and Figure 15.
Figure 14 is the figure for indicating the analog result of antenna performance.As shown in figure 14, it is known that antenna assembly 1D 1.28GHz with
And the reflections at frequencies loss near 1.59GHz becomes smaller, and can be realized dual-band antenna.
Figure 15 is the figure for indicating the radiation pattern of the antenna assembly 1D under two frequencies.In Figure 15, indicated with unit dB
The movement gain of antenna assembly.As shown in figure 15, antenna assembly 1D is high-gain and wide direction in above-mentioned two frequency both sides
Property.
As described above, antenna assembly 1,1A~1D involved in embodiment are high-gain and wide directive property, and correspond to more
A frequency, is best suited for GNSS.Said antenna device is particular enable to expect to be used in the industrial applications for requiring high accuracy positioning, energy
Enough it is efficiently applied to agricultural, building, railway and the fields such as take precautions against natural calamities.Specifically, said antenna device can for example have effect
The traveling guidance of agricultural machinery for extensive farmland, the control of heavy machine in construction site, the driver of railway support,
Be likely to occur landslide, steep cliff collapses dangerous obliquely normal when monitoring etc..
In addition, the disclosure is not limited to above-mentioned embodiment, it include various modifications example.For example, above embodiment
It is for ease of understanding to illustrate the disclosure and be described in detail, is not limited to the whole knots that must have illustrated
Structure.
Furthermore it is possible to a part of the structure of certain embodiment be replaced into the structure of other embodiments, in addition, also can
Enough structures that other embodiments are added in the structure of certain embodiment.In addition, one of the structure for each embodiment
Point, it is able to carry out the addition, deletion, displacement of other structures.In addition, each component recorded in attached drawing, opposite size are in order to hold
Intelligibly illustrate the disclosure and simplifies, idealizes, it is different from actual installation sometimes.
<variation 1>
In the explanation of above-described embodiment, to the first dielectric base plate 11 of antenna assembly 1 and the 4th dielectric base plate
14 are illustrated the case where respective four corners are supported by bar 8 and screw 9.But if by being led by rigidity is high
The signal wire 2 that body component is formed is engaged with high engaging force with each substrate by solder 4, then antenna assembly 1 also may not necessarily
In four corners, bar 8 and screw 9 are set.
<variation 2>
In the explanation of above-described embodiment, antenna assembly 1 has two patch electrodes corresponding with different frequency.It is traditional thread binding
Set 1 patch electrode that can also have three corresponding with multiple frequencies or more.
Figure 16 is the figure for indicating the antenna assembly 1E of variation 2.In the antenna assembly 1E shown in Figure 16, have first~
N-th+2 dielectric layer Sn+2 (2≤n), the first~the n-th patch electrode Pn and grounding electrode P, m patch electrode (1≤m≤n-1)
Two faces with size corresponding with m frequency, a face in two faces connects with m dielectric layer, in two faces
Another face connects with m+1 dielectric layer, two faces of the m+1 patch electrode with size corresponding with m+1 frequency, and two
A face in a face connects with m+1 dielectric layer, another face in two faces connects with m+2 dielectric layer, ground connection
Electrode P has and the face the (n+1)th dielectric layer Sn+1 the face to connect and connect with the n-th+2 dielectric layer Sn+2, the first dielectric
Layer S1 includes dielectric base plate.
Antenna assembly 1E with above structure can correspond to three or more frequencies.Here, above-mentioned dielectric layer S2
~Sn+2 can only include dielectric base plate, also may include dielectric base plate and air layer, can also only include air layer.This
Outside, since the first dielectric layer S1 includes dielectric base plate, antenna assembly 1E becomes to be had by wavelength shortening effect
The antenna assembly of wide directive property.
In addition, n patch electrode is configured to become large-sized with going toward grounding electrode P in antenna assembly 1.This
Sample, antenna assembly 1E become high-gain and wide directive property.
It is with a thickness of t1~tn respectively in the first dielectric layer of dielectric layer S1~n-th Sn for antenna assembly 1E
Dielectric base plate, and the (n+1)th dielectric layer Sn+1 is constituted by the dielectric base plate with a thickness of tn and with a thickness of the air layer G of dg
In the case where, it can also be designed to meet relationship shown in the following formula.
[mathematic(al) representation 2]
Here, the dielectric base plate that the (n+1)th dielectric layer is included connects with face possessed by the n-th patch electrode Pn, empty
Gas-bearing formation G connects with face possessed by grounding electrode P.In addition, λ is the freedom of m patch electrode Pm radiation or received electromagnetic wave
The average value of wavelength X 1~λ of m or λ n in space.λ is also possible to the median of 1~λ of λ n.The formula of upper section is traditional thread binding for day
1 condition acted as microcell antenna is set, the formula of lower section is the condition for meeting the requirement in design.Above-mentioned parameter
Value is for example worth using corresponding with applied wireless communication system.Antenna assembly 1E is by meeting pass shown in above-mentioned formula
System, becomes larger to act gain.
<variation 3>
In the column of the design example of antenna assembly, there are two air layer 12B and air layer 13C for antenna assembly 1D tool.It is above-mentioned
Air layer 12B and air layer 13C can be by different dielectric formations.Air layer 12B and air layer 13C are for example in order to realize
Desired radiation characteristic is also possible to the spacer with dielectric constant appropriate.
Description of symbols
1... antenna assembly
2... signal wire
3... supply terminals
4... solder
5... electronic circuit
5a... antenna terminal
5b... output terminal
5c... low-noise amplifier
5d... bandpass filter
5e... bias device
6... antenna
7... IC is demodulated
8... bar
9... screw
10... coaxial connector
10a... signal terminal
10b... ground terminal
11... the first dielectric base plate
12... the second dielectric base plate
13... third dielectric base plate
14... the 4th dielectric base plate
15... the first patch electrode
16... the second patch electrode
17... grounding electrode
12B, 13C, G... air layer
The upper surface 11a, 12a, 13a, 14a, 15a, 16a, 17a...
The lower surface 11b, 12b, 13b, 14b, 15b, 16b, 17b...
11c, 12c, 13c, 14c, 15c, 16c, 17c... through-hole
11d... the first signal welding disk
The earthy welding disk of 14d...
The wiring of 14e... via hole
14f... clearance portion
14g... second signal welding disk
14h... microstrip line
120... the second dielectric layer
130... third dielectric layer
Whole publications, the patent document quoted in this specification are incorporated into this specification and directly quoting.
Claims (8)
1. a kind of antenna assembly, has:
The first~the n-th+2 dielectric layer；
The first~the n-th patch electrode；With
Grounding electrode,
M patch electrode has two faces of size corresponding with m frequency, a face and the m in described two faces
Dielectric layer connects, another face in described two faces connects with the m+1 dielectric layer,
The m+1 patch electrode has two faces of size corresponding with m+1 frequency, a face in described two faces with
The m+1 dielectric layer connects, another face in described two faces connects with the m+2 dielectric layer,
The grounding electrode has the face to connect with the n+1 dielectric layer and the face to connect with the n+2 dielectric layer,
First dielectric layer includes dielectric base plate,
N is that 2 or more, m is 1 or more and n or less.
2. antenna assembly according to claim 1, wherein
The dielectric base that one face possessed by first patch electrode and first dielectric layer are included
Plate connects.
3. antenna assembly according to claim 1, wherein
The outer diameter of the m patch electrode is smaller than the outer diameter of the m+1 patch electrode, and the m frequency is than the m+1 frequency
Rate is high.
4. antenna assembly according to claim 1, wherein
Each freedom of the first~the n-th dielectric layer is constituted with a thickness of the dielectric base plate of t1~tn, (n+1)th dielectric layer
It is constituted by the dielectric base plate with a thickness of tn+1 and with a thickness of the air layer of dg,
The dielectric base plate that (n+1)th dielectric layer is included and the face phase possessed by n-th patch electrode
It connects,
The air layer that (n+1)th dielectric layer is included connects with the face possessed by the grounding electrode,
And meet relationship below.
[mathematic(al) representation 1]
Here, λ be wavelength X m or λ 1 in the free space of m patch electrode Pm radiation or received electromagnetic wave~
The average value of λ n.
5. antenna assembly according to claim 1, wherein
(n+1)th dielectric layer includes air layer, and the grounding electrode connects with the air layer.
6. antenna assembly according to claim 1, wherein
The antenna assembly also includes
Dielectric base plate includes n-th+2 dielectric layer；
First welding disk is formed in face possessed by the dielectric base plate for including as first dielectric layer；
Be formed in face possessed by the dielectric base plate for including as n-th+2 dielectric layer the second welding disk and with
The third welding disk of the second welding disk electrical isolation；
Conductor portion penetrates through the first~the n-th+2 dielectric layer, the first~the n-th patch electrode and the grounding electrode,
First welding disk, the third welding disk and the first~the n-th patch electrode are electrically connected via the conductor portion,
Second welding disk and grounding electrode electrical connection,
The grounding electrode and conductor portion electrical isolation.
7. antenna assembly according to claim 6, wherein
The diameter ratio for being set to the through hole that the conductor portion of the grounding electrode is penetrated through is set to be situated between by n-th+2 electricity
The diameter for the through hole that the conductor portion for the dielectric base plate that matter layer includes is penetrated through is big.
8. a kind of antenna assembly, has:
First dielectric layer includes dielectric base plate；
Second dielectric layer；
Third dielectric layer；
4th dielectric layer；
First patch electrode, two faces with size corresponding with first frequency, a face in described two faces with it is described
Dielectric layer connects, another face in described two faces connects with second dielectric layer；
Second patch electrode, two faces with size corresponding with second frequency, a face in described two faces with it is described
Second dielectric layer connects, another face in described two faces connects with the third dielectric layer；With
Grounding electrode has the face to connect with the third dielectric layer and the face to connect with the 4th dielectric layer.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016221218A JP6761737B2 (en) | 2016-11-14 | 2016-11-14 | Antenna device |
| JP2016-221218 | 2016-11-14 | ||
| PCT/JP2017/024160 WO2018087956A1 (en) | 2016-11-14 | 2017-06-30 | Antenna device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109565112A true CN109565112A (en) | 2019-04-02 |
| CN109565112B CN109565112B (en) | 2021-10-22 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780047843.9A Active CN109565112B (en) | 2016-11-14 | 2017-06-30 | Antenna device |
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| Country | Link |
|---|---|
| JP (1) | JP6761737B2 (en) |
| CN (1) | CN109565112B (en) |
| TW (1) | TWI663784B (en) |
| WO (1) | WO2018087956A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7147378B2 (en) * | 2018-08-30 | 2022-10-05 | Tdk株式会社 | antenna |
| JP2020174285A (en) * | 2019-04-10 | 2020-10-22 | 株式会社Ｓｏｋｅｎ | Antenna device |
| US11431107B2 (en) | 2019-04-11 | 2022-08-30 | Samsung Electro-Mechanics Co., Ltd. | Chip antenna module and method of manufacturing chip antenna module |
| CN116848728A (en) * | 2021-02-03 | 2023-10-03 | 大日本印刷株式会社 | Antenna and communication device |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2018087956A1 (en) | 2018-05-17 |
| TWI663784B (en) | 2019-06-21 |
| TW201818608A (en) | 2018-05-16 |
| JP6761737B2 (en) | 2020-09-30 |
| JP2018082224A (en) | 2018-05-24 |
| CN109565112B (en) | 2021-10-22 |
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