CN110121815A - Antenna assembly - Google Patents
Antenna assembly Download PDFInfo
- Publication number
- CN110121815A CN110121815A CN201780080840.5A CN201780080840A CN110121815A CN 110121815 A CN110121815 A CN 110121815A CN 201780080840 A CN201780080840 A CN 201780080840A CN 110121815 A CN110121815 A CN 110121815A
- Authority
- CN
- China
- Prior art keywords
- antenna
- loop portion
- antenna assembly
- passive element
- earth conductor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
- H01Q9/42—Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
Abstract
The present invention minimizes antenna assembly while ensuring isolation between antennae.One embodiment of the present invention relates to antenna assembly (1) have earth conductor (GND1), first antenna (ANT1), the second antenna (ANT2) and loop portion (LP11).First antenna (ANT1), the second antenna (ANT2) are electrically connected with earth conductor.Loop portion (LP11) includes passive element (PE11) and reactance component (RT11).The end (T10) of passive element (PE11) is electrically connected with earth conductor (GND1).The end (T9) of passive element (PE11) is connect via reactance component (RT11) with earth conductor (GND1).
Description
Technical field
The present invention relates to the antenna assemblies for having mutiple antennas.
Background technique
It has been known that there is the antenna assemblies for having mutiple antennas.For example, in Japanese Unexamined Patent Publication 2006-42111 bulletin (patent document
1) antenna assembly for having two antennas is disclosed.
Citation
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2006-42111 bulletin
Summary of the invention
Subject to be solved by the invention
In the antenna assembly for having mutiple antennas, therefore, to assure that isolation between antennae.So-called isolation is to show
The amount of the degree of leakage of the signal from an antenna element to another antenna element between antenna element.Isolation is expressed as to one
The power of the input signal of a antenna element input and the leakage signal leaked from an antenna element to another antenna element
Power ratio (dB).
In the antenna assembly disclosed in patent document 1, by the loop paths formed by passive element and bottom plate
The resonance phenomena of generation can reduce the electric current from an antenna to another antenna excitation.As a result, it can be ensured that between antenna
Isolation.
As disclosed in patent document 1 in antenna assembly, the resonance frequency of loop paths is needed based on antenna
The frequency of received signal is adjusted.The length of passive element impacts the inductive component of passive element.If changing nothing
The length of source element, then the resonance frequency of loop paths can change.Therefore, if the length of change passive element, loop portion become
The signal resonance that must be not easy and be received by antenna.The semaphore for being transmitted to another antenna from the antenna is likely to increase and makes
Isolation between antennae decline.In antenna assembly, passive element is likely to become true as disclosed in patent document 1
The obstacle for minimizing antenna assembly while protecting isolation between antennae.
The present invention is completed to solve project as described above, it is intended that the isolation between ensuring antenna
Antenna assembly is minimized while spending.
A technical solution to solve project
One embodiment of the present invention relates to antenna assembly have earth conductor, first antenna and the second antenna,
And the first loop portion.First antenna and the second antenna are electrically connected with earth conductor.First loop portion includes first passive yuan
Part and the first reactance component.In the first passive element, one end of the first passive element is electrically connected with earth conductor.In the first nothing
In source element, the other end of the first passive element is connect via the first reactance component with earth conductor.
Some so-called circuit element " is electrically connected " with other circuit elements, it is meant that the two is directly connected to, or via with
The different circuit element of the two and connect indirectly.
Invention effect
In antenna assembly of the present invention, the first ring is transmitted to by the signal that first antenna or the second antenna receive
Road portion, the energy of the signal is consumed in the first loop portion as a result,.It can reduce and be transmitted to another antenna from an antenna
The power of signal.As a result, it can be ensured that isolation between antennae.
In addition, in antenna assembly of the present invention, the other end of the first passive element via the first reactance component with
Earth conductor connection.In antenna arrangement, the resonance frequency in the first loop portion can pass through the length of the first passive element
The reactance of (inductive component) and the first reactance component is adjusted.Even if also can in the case where shortening the first passive element
Enough reactance by adjusting the first reactance component, receive so that antenna assembly is designed as the first loop portion with by first antenna
Signal resonance.As a result, antenna assembly can be minimized.
The antenna assembly being related to according to the present invention, can be small-sized by antenna assembly while ensuring isolation between antennae
Change.
Detailed description of the invention
Fig. 1 is the figure for showing an example of equivalent circuit diagram for the antenna assembly that embodiment 1 is related to.
Fig. 2 is the figure for showing an example of appearance for antenna assembly shown in FIG. 1.
Fig. 3 is the figure for showing the isolation characteristic of antenna assembly shown in FIG. 1.
Fig. 4 is the figure for showing an example of equivalent circuit diagram for the antenna assembly that the variation of embodiment 1 is related to.
Fig. 5 is the figure for showing an example of equivalent circuit diagram for the antenna assembly that embodiment 2 is related to.
Fig. 6 is the figure for showing an example of appearance for antenna assembly shown in fig. 5.
Fig. 7 is the isolation characteristic for showing antenna assembly shown in fig. 5 together and the isolation of antenna assembly shown in FIG. 1
Spend the figure of characteristic.
Fig. 8 is the figure for showing an example of equivalent circuit diagram for the antenna assembly that embodiment 3 is related to.
Fig. 9 is the figure for showing an example of appearance for antenna assembly shown in Fig. 8.
Figure 10 be show together antenna assembly shown in Fig. 8 isolation characteristic and antenna assembly shown in fig. 5 every
Figure from degree characteristic.
Figure 11 is the figure for showing an example of equivalent circuit diagram for the antenna assembly that embodiment 4 is related to.
Figure 12 is the figure for showing an example of appearance for antenna assembly shown in Figure 11.
Figure 13 is the figure for showing an example of equivalent circuit diagram for the antenna assembly that the variation 1 of embodiment 4 is related to.
Figure 14 is the figure for showing an example of equivalent circuit diagram for the antenna assembly that the variation 2 of embodiment 4 is related to.
Figure 15 is the figure for showing an example of equivalent circuit diagram for the antenna assembly that the variation 3 of embodiment 4 is related to.
Specific embodiment
Hereinafter, referring to attached drawing, detailed description of embodiments of the present invention.In addition, in the figure to identical or corresponding
Part marks identical appended drawing reference, its explanation is not repeated in principle.
[embodiment 1]
Fig. 1 is the figure for showing an example of equivalent circuit diagram for the antenna assembly 1 that embodiment 1 is related to.Antenna assembly 1
It can be communicated according to multiple communication modes.Antenna assembly 1 can for example be pressed in 2400~2484MHz (2.4GHz frequency range)
It is carried out according to WiFi (registered trademark) (Wireless Fidelity, Wireless Fidelity) and bluetooth (Bluetooth, registered trademark)
Communication.
As shown in Figure 1, antenna assembly 1 has earth conductor GND1, antenna ANT1, ANT2 and loop portion LP11.Scheming
In 1, in order to be readily appreciated that the connection relationship between each component, earth conductor GND1 is depicted as to supply terminals FP1 and FP2
The straight line being attached.It is also same in Fig. 4, Fig. 5, Fig. 8, Figure 11 and Figure 13~Figure 15.
Antenna ANT1 is connect via supply terminals FP1 with earth conductor GND1.Antenna ANT2 is led via supply terminals FP2 with ground connection
Body GND1 connection.The resonance frequency of antenna ANT1 and the resonance frequency of antenna ANT2 are close.
Loop portion LP11 includes passive element PE11 and reactance component RT11.The end T9 of passive element PE11 is via reactance
Element RT11 is connect with earth conductor GND1.The end T10 of passive element PE11 is connect with earth conductor GND1.Reactance component
RT11 is connect at tie point N11 with earth conductor GND1.Reactance component RT11 includes inductor L11.Reactance component RT11
It may include capacitor.
In loop portion LP11, by passive element PE11, reactance component RT11 and from tie point N11 to passive element
The part of earth conductor GND1 until the end T12 of PE11 forms loop paths.
The capacitive coupling of loop portion LP11 and antenna ANT1 is stronger than loop portion LP11 and the capacitive coupling of antenna ANT2.Scheming
In 1, which shows in the following way, that is, passive element PE11 is connected with antenna ANT1 via capacitor C1, separately
On the one hand, passive element PE11 is not connected via capacitor with antenna ANT2.
In the antenna assembly 1 for having antenna ANT1, ANT2, therefore, to assure that the isolation between antenna ANT1 and ANT2.
In antenna assembly 1, loop portion LP11 is transmitted to by the signal that antenna ANT1 or ANT2 are received, as a result, the power of the signal
It is consumed in loop portion LP11.The power of the signal transmitted from an antenna to another antenna can be reduced.In antenna assembly 1
In, the isolation between antenna ANT1 and antenna ANT2 can be ensured by loop portion LP11.
In antenna assembly 1, the resonance frequency f1 of loop portion LP11 is needed based on antenna ANT1 or ANT2 received signal
Frequency be adjusted.The length for the passive element PE11 that loop portion LP11 includes causes the inductive component of passive element PE11
It influences.If changing the length of passive element PE11, the resonance frequency f1 of loop portion LP11 can change.In order to ensure antenna
It is by shortening the length of passive element PE11 that antenna assembly 1 is small-sized while isolation between ANT1 and antenna ANT2
Change, the method other than the change by the length of passive element PE11 is needed to adjust the resonance frequency f1 of loop portion LP11
It is whole.
Therefore, in antenna assembly 1, by changing the reactance of reactance component RT11, so as to adjust the humorous of loop portion LP11
Vibration frequency f1.In antenna arrangement 1, the resonance frequency f1 of loop portion LP11 can pass through the length of passive element PE11
The reactance of (inductive component) and reactance component RT11 are adjusted.Even if also can in the case where shortening passive element PE11
Enough reactance by adjusting reactance component RT11, thus by antenna assembly 1 be designed as loop portion LP11 with by antenna ANT1 or
ANT2 received signal resonance.As a result, antenna assembly can be minimized.
Fig. 2 is the figure for showing an example of appearance for antenna assembly 1 shown in FIG. 1.In Fig. 2, X-direction and Y-axis
Direction is mutually orthogonal.It is also same in Fig. 6, Fig. 9 and Figure 12.
As shown in Fig. 2, earth conductor GND1 extends in X-direction.The passive member that antenna ANT1 and loop portion LP11 include
Part PE11 and reactance component RT11 configuration is in dielectric base plate 10.Antenna ANT2 is configured in dielectric base plate 20.
Antenna ANT1 is extended from supply terminals FP1 to Y direction and from Y direction to the curved reversed F-typed list of X-direction
Pole antenna.Antenna ANT1 includes main part ML1, short-circuit line SL1 and supply lines FL1.Bending of the main part ML1 from antenna ANT1
Portion BP1 extends to X-direction.Supply lines FL1 extends to bending section BP1 from supply terminals FP1 in Y direction.Short-circuit line SL1 is to master
Body portion ML1 and earth conductor GND1 are attached.There is inductive component in short-circuit line SL1, therefore by forming short-circuit line SL1,
So as to which the resonance frequency of antenna ANT1 is adjusted to desired value.
By the way that antenna ANT1 to be become to reversed F-typed unipole antenna, so as to effectively utilize installation space.Its result
It is that " dead " space is reduced, antenna assembly 1 can be minimized.Furthermore it is possible to from the discretely disposal subject portion earth conductor GND1
ML1, therefore the capacitive coupling of main part ML1 Yu earth conductor GND1 can be weakened.As a result, can be improved main part ML1
Signal radianting capacity.
It is smaller at a distance from antenna ANT2 than loop portion LP11 at a distance from loop portion LP11 and antenna ANT1.Therefore, loop portion
The capacitive coupling of LP11 and antenna ANT1 is stronger than loop portion LP11 and the capacitive coupling of antenna ANT2.In the embodiment 1, because
Make loop portion LP11 close to antenna ANT1, so without forming dielectric base plate between loop portion LP11 and antenna ANT2.Cause
This, can be improved the freedom degree of the design of dielectric base plate, for example, electricity can be formed between loop portion LP11 and antenna ANT2
Notch (notch) of medium substrate etc..
Passive element PE11 extends from reactance component RT11 to Y direction and at the BP2 of bending section from Y direction to X-axis
Direction bending.Passive element PE11 extends from bending section BP2 to X-direction and at the BP3 of bending section from X-direction to Y-axis side
To bending.Passive element PE11 extends from bending section BP3 to Y direction and at the BP4 of bending section from Y direction to X-direction
Bending.Passive element PE11 extends from earth conductor GND1 in Y direction and at the BP5 of bending section from Y direction to X-direction
Bending.Passive element PE11 extends to BP5 from bending section BP4.
Passive element PE11 includes part PT1 and part PT2.Part PT1 be from bending section BP2 to BP3 until portion
Point.Part PT2 be from bending section BP4 to BP5 until part.The main part ML1 and ground connection that part PT1 configured in antenna ANT1
Between conductor GND1.It is bigger at a distance from earth conductor GND1 than part PT1 at a distance from part PT2 and earth conductor GND1.
By passive element PE11 have multiple bending section BP2~BP5, so as in limited installation space by nothing
Source element PE11 is arranged to grow as far as possible.Furthermore it is possible to effectively utilize installation space, therefore " dead " space is reduced, can be by day
Line apparatus 1 minimizes.In turn, by being adjusted at a distance from main part ML1 to part PT1, so as to by passive element
The capacitive coupling of PE11 and antenna ANT1 is adjusted to desired intensity.
Fig. 3 is the figure for showing the isolation characteristic IS1 of antenna assembly 1 shown in FIG. 1.In Fig. 3, the attenuation of the longitudinal axis
(dB) value being negative is shown.The absolute value of attenuation is bigger, it is meant that the signal received by an antenna is more not transferred to
Another antenna, therefore isolation between antennae is bigger.It is also same in Fig. 7, Figure 10.As shown in figure 3, attenuation is in ring
Become minimum at the resonance frequency f1 of road portion LP11, realizes the attenuation of -20dB or so.
In antenna assembly 1, loop portion LP11 is configured between antenna ANT1 and ANT2.Loop portion LP11 for example can also be with
It as antenna assembly 1A shown in Fig. 4, is not disposed between antenna ANT1 and ANT2, but is configured from antenna ANT1
With antenna ANT2 opposite side.
More than, according to the antenna assembly that the variation of embodiment 1 and embodiment 1 is related to, it can ensure antenna
Between isolation while antenna assembly is minimized.
[embodiment 2]
In the embodiment 1, the only one end for the passive element for including to loop portion connects via reactance component and earth conductor
The case where connecing is illustrated.In embodiment 2, to by the way that the both ends of passive element via reactance component and are grounded respectively
The case where conductor connects and further increases isolation between antennae is illustrated.
Fig. 5 is the figure for showing an example of equivalent circuit diagram for the antenna assembly 2 that embodiment 2 is related to.It is shown in Fig. 5
Antenna assembly 2 in, the loop portion LP11 of antenna assembly 1 shown in FIG. 1 is replaced into loop portion LP12.About loop portion LP12
Structure in addition, it is identical as antenna assembly 1, therefore the explanation of the structure is not repeated.
Loop portion LP12 includes passive element PE12 and reactance component RT11, RT12.The end T11 of passive element PE12 is passed through
It is connect by reactance component RT11 with earth conductor GND1.The end T12 of passive element PE12 is via reactance component RT12 and ground connection
Conductor GND1 connection.
Reactance component RT12 is connect at tie point N12 with earth conductor.Reactance component RT12 includes inductor L12.Electricity
Anti- element RT12 also may include capacitor.
In loop portion LP12, by passive element PE12, reactance component RT11, from tie point N11 to N12 until ground connection
The part of conductor GND1 and reactance component RT12 form loop paths.The resonance frequency and embodiment 1 of loop portion LP12
It is similarly resonance frequency f1.
Fig. 6 is the figure for showing an example of appearance for antenna assembly 2 shown in fig. 5.As shown in fig. 6, loop portion LP12
The passive element PE12 and reactance component RT11, RT12 for including are configured in dielectric base plate 10.
Fig. 7 is the isolation characteristic IS2 and antenna assembly shown in FIG. 11 for showing antenna assembly 2 shown in fig. 5 together
Isolation characteristic IS1 figure.Isolation characteristic IS1 shown in Fig. 7 is identical as isolation characteristic IS1 shown in Fig. 3.
As shown in fig. 7, the absolute value of the attenuation of isolation characteristic IS2 is super at the resonance frequency f1 of loop portion LP12
Cross the absolute value 15dB of attenuation or so of isolation characteristic IS1.Why like this attenuation of isolation characteristic IS2 is exhausted
To value be more than isolation characteristic IS1 attenuation absolute value, be because of by by the both ends of passive element PE12 respectively via
Reactance component RT11, RT12 and earth conductor connect, to can inhibit the electricity in passive element PE12 compared with embodiment 1
The deviation of flow distribution.According to antenna assembly 2, the isolation between antenna ANT1 and ANT2 can be further increased.
More than, according to the antenna assembly that embodiment 2 is related to, it can also ensure that isolation between antennae, and can incite somebody to action
Antenna assembly miniaturization.
In turn, the antenna assembly being related to according to embodiment 2, by by the both ends of the passive element in loop portion respectively via
Reactance component is connect with earth conductor, so as to inhibit the deviation of the current distribution in passive element.As a result, can be into
One step increases isolation between antennae.
[embodiment 3]
In embodiment 1 and embodiment 2, the case where having a loop portion to antenna assembly, is illustrated.
Antenna assembly of the present invention can also have multiple loop portions.In embodiment 3, have two loops to antenna assembly
Portion and the case where having loop portion by each antenna configuration is illustrated.
Fig. 8 is the figure for showing an example of equivalent circuit diagram for the antenna assembly 3 that embodiment 3 is related to.It is shown in Fig. 8
Antenna assembly 3 in, the structure of antenna assembly 2 shown in Fig. 5 has added loop portion LP22.Other than loop portion LP22
Structure, it is identical as antenna assembly 2, therefore the explanation of the structure is not repeated.
Loop portion LP22 includes passive element PE22 and reactance component RT21, RT22.The end T21 of passive element PE22 is passed through
It is connect by reactance component RT21 with earth conductor GND1.The end T22 of passive element PE22 is via reactance component RT22 and ground connection
Conductor GND1 connection.
Reactance component RT21 is connect at tie point N21 with earth conductor GND1.Reactance component RT21 includes inductor
L21.Reactance component RT21 also may include capacitor.
Reactance component RT22 is connect at tie point N22 with earth conductor GND1.Reactance component RT22 includes inductor
L22.Reactance component RT22 also may include capacitor.
In loop portion LP22, by passive element PE22, reactance component RT21, from tie point N21 to N22 until ground connection
The part of conductor GND1 and reactance component RT22 form loop paths.The resonance frequency of loop portion LP22 is resonance frequency
f2。
The capacitive coupling of loop portion LP22 and antenna ANT2 is stronger than loop portion LP22 and the capacitive coupling of antenna ANT1.Scheming
In 8, which shows in the following way, that is, passive element PE22 is connected with antenna ANT2 via capacitor C2, separately
On the one hand, passive element PE22 is not connected via capacitor with antenna ANT1.
Fig. 9 is the figure for showing an example of appearance for antenna assembly 3 shown in Fig. 8.As shown in figure 9, loop portion LP22
Passive element PE21, reactance component RT21, the RT22 for including are configured in dielectric base plate 20.
It is smaller at a distance from antenna ANT1 than loop portion LP22 at a distance from loop portion LP22 and antenna ANT2.Therefore, loop portion
The capacitive coupling of LP22 and antenna ANT2 is stronger than loop portion LP22 and the capacitive coupling of antenna ANT1.In embodiment 2, because
Make loop portion LP22 close to antenna ANT2, so without forming dielectric base plate between loop portion LP22 and antenna ANT1.Cause
This, can be improved the freedom degree of the design of dielectric base plate, for example, electricity can be formed between loop portion LP22 and antenna ANT1
Notch (notch) of medium substrate etc..
Figure 10 is the isolation characteristic IS3 and antenna assembly shown in fig. 52 for showing antenna assembly 3 shown in Fig. 8 together
Isolation characteristic IS2 figure.Isolation characteristic IS2 shown in Fig. 10 is identical as isolation characteristic IS2 shown in Fig. 7.Scheming
In the frequency band of 2000~3000MHz shown in 10, compared with isolation characteristic IS2, the attenuation of isolation characteristic IS3 it is absolute
It is worth bigger.Isolation characteristic IS3 absolute value of attenuation at the resonance frequency f2 of loop portion LP22 becomes maximum.
Because antenna assembly 3 has two loop portions LP12, LP22, the signal received by antenna ANT1 or ANT2
When being transmitted to loop portion LP12, the energy of the signal is consumed in loop portion LP12, and is being transmitted to loop portion LP22
When, the energy of the signal is also consumed in loop portion LP22.As a result, compared with isolation characteristic IS2, isolation characteristic
The absolute value of the attenuation of IS3 becomes much larger, and can further increase the isolation between antenna ANT1 and ANT2.
More than, according to the antenna assembly that embodiment 3 is related to, it can also ensure that isolation between antennae, and can incite somebody to action
Antenna assembly miniaturization.
In turn, the antenna assembly being related to according to embodiment 3 can be further increased by multiple loop portions between antenna
Isolation.
[embodiment 4]
In 1~embodiment of embodiment 3, the case where having two antennas to antenna assembly, is illustrated.This hair
The bright antenna assembly being related to can also have three or more antennas.In embodiment 4, have three antennas to antenna assembly
The case where be illustrated.
Figure 11 is the figure for showing an example of equivalent circuit diagram for the antenna assembly 4 that embodiment 4 is related to.In Figure 11 institute
In the antenna assembly 4 shown, the structure of antenna assembly 3 shown in Fig. 8 has added antenna ANT3, loop portion LP32 and power supply
Point FP3.It is identical as antenna assembly 3 about the structure other than these, therefore the explanation of the structure is not repeated.
Antenna ANT3 is connect via supply terminals FP3 with earth conductor GND1.Loop portion LP32 include passive element PE32 and
Reactance component RT31, RT32.The end T31 of passive element PE32 is connect via reactance component RT31 with earth conductor GND1.Nothing
The end T32 of source element PE32 is connect via reactance component RT32 with earth conductor GND1.
Reactance component RT31 is connect at tie point N31 with earth conductor GND1.Reactance component RT31 includes inductor
L31.Reactance component RT31 also may include capacitor.
Reactance component RT32 is connect at tie point N32 with earth conductor GND1.Reactance component RT32 includes inductor
L32.Reactance component RT32 also may include capacitor.
In loop portion LP32, by passive element PE32, reactance component RT31, from tie point N31 to N32 until ground connection
The part of conductor GND1 and reactance component RT32 form loop paths.
The capacitive coupling of loop portion LP32 and antenna ANT3 is stronger than loop portion LP32 and the capacitive coupling of antenna ANT1, and compares
Loop portion LP32 and the capacitive coupling of antenna ANT2 are strong.In Figure 11, which shows in the following way, that is, nothing
Source element PE32 is connected with antenna ANT3 via capacitor C3, and on the other hand, passive element PE32 and antenna ANT1, ANT2 are not
It is connected via capacitor.
Figure 12 is the figure for showing an example of the appearance of antenna assembly 4 shown in Figure 11.As shown in figure 12, antenna ANT3
With the loop portion LP32 passive element PE32 for including and reactance component RT31, RT32 configuration in dielectric base plate 30.
It is smaller at a distance from antenna ANT1 than loop portion LP32 at a distance from loop portion LP32 and antenna ANT3, and than loop portion
LP32 is small at a distance from antenna ANT2.Therefore, the capacitive coupling of loop portion LP32 and antenna ANT3 is than loop portion LP32 and antenna
The capacitive coupling of ANT1 is strong, and stronger than loop portion LP32 and the capacitive coupling of antenna ANT2.In embodiment 4, by making ring
Road portion LP32 is close to antenna ANT3, without between loop portion LP32 and antenna ANT1 and loop portion LP32 and antenna
Dielectric base plate is formed between ANT2.Therefore, it can be improved the freedom degree of the design of dielectric base plate, for example, can be in loop
The notch etc. of dielectric base plate is formed between portion LP32 and antenna ANT1 and between loop portion LP32 and antenna ANT2.
In embodiment 4, it is illustrated to the case where having loop portion by each antenna configuration of three antennas.But
It is, without having loop portion by every antenna configuration of three antennas, as long as having a following loop portion, so that it may be any
Structure, in the loop portion, at least one end of passive element is connect via reactance component with earth conductor.For example, it can be
Following structure, that is, the antenna assembly 4A that the variation 1 of the embodiment 4 as shown in Figure 13 is related to (does not have and antenna ANT2
The case where corresponding loop portion) and Figure 14 shown in embodiment 4 variation 2 be related to antenna assembly 4B (do not have with
The case where corresponding loop portion antenna ANT3) like that, without loop portion corresponding with an antenna in three antennas.Or
Person can also be following structure, that is, as the antenna assembly 4C that the variation 3 of embodiment 4 shown in figure 15 is related to (does not have
Have the case where loop portion corresponding with antenna ANT2 and antenna ANT3) like that, without with two antennas in three antennas
Corresponding loop portion.
More than, according to the antenna assembly that 1~variation of variation 3 of embodiment 4 and embodiment 4 is related to, also can
Enough ensure isolation between antennae, and antenna assembly can be minimized.
This time disclosed each embodiment, which is also predefined in reconcilable range, is appropriately combined and implements.It is believed that this
Secondary disclosed embodiment in all aspects be illustrate rather than it is restrictive.The scope of the present invention is said by above-mentioned
It is explicitly shown, but is shown in the claims, it is intended to encompass is in the meaning and range being equal with claims all
Change.
Description of symbols
1~4,1A, 4A~4C: antenna assembly, 10,20,30: dielectric base plate, ANT1~ANT3: antenna, BP1~BP5:
Bending section, C1~C3: capacitor, FL1: supply lines, FP1~FP3: supply terminals, GND1: earth conductor, L11, L12, L21,
L22, L31, L32: inductor, LP11, LP12, LP22, LP32: loop portion, ML1: main part, PE1, PE11, PE12, PE21,
PE22, PE32: passive element, PT1, PT2: part, RT11, RT12, RT21, RT22, RT31, RT32: reactance component, SL1: short
Route.
Claims (14)
1. a kind of antenna assembly, has:
Earth conductor；
First antenna and the second antenna, are electrically connected with the earth conductor；And
First loop portion, include the first passive element and the first reactance component,
In first passive element, one end of first passive element is electrically connected with the earth conductor, and described
The other end of first passive element is connect via first reactance component with the earth conductor.
2. antenna assembly according to claim 1, wherein
First loop portion is smaller at a distance from second antenna than first loop portion at a distance from the first antenna.
3. antenna assembly according to claim 2, wherein
First loop portion is close to the first antenna.
4. antenna assembly described in any one of according to claim 1~claim 3, wherein
First reactance component has inductor.
5. antenna assembly described in any one of according to claim 1~claim 4, wherein
The earth conductor extends in a first direction,
First passive element extends in the second direction orthogonal with the first direction, and have from the second direction to
The curved bending section of first direction.
6. antenna assembly according to claim 5, wherein
The first antenna is from the second direction to the curved unipole antenna of the first direction.
7. antenna assembly according to claim 6, wherein
First passive element includes the first part and second part along the first direction,
Specific part and the earth conductor along the first direction of the first part's configuration in the first antenna
Between,
The second part is bigger at a distance from the earth conductor than the first part at a distance from the earth conductor.
8. antenna assembly according to claim 7, wherein
Be also equipped with: the specific part is connected to the earth conductor by short-circuit conductor.
9. antenna assembly described in any one of according to claim 1~claim 8, wherein
First loop portion also includes the second reactance component,
Described one end of first passive element is connect via second reactance component with the earth conductor.
10. antenna assembly described in any one of according to claim 1~claim 9, wherein
It is also equipped with the second loop portion,
Second loop portion is smaller at a distance from the first antenna than second loop portion at a distance from second antenna.
11. antenna assembly according to claim 10, wherein
Second loop portion is close to second antenna.
12. according to claim 10 or claim 11 described in antenna assembly, wherein
Be also equipped with: third antenna is electrically connected with the earth conductor,
First loop portion is smaller at a distance from the third antenna than first loop portion at a distance from the first antenna,
Second loop portion is smaller at a distance from the third antenna than second loop portion at a distance from second antenna.
13. antenna assembly according to claim 12, wherein
It is also equipped with third loop portion,
Third loop portion is smaller at a distance from the first antenna than third loop portion at a distance from the third antenna,
And it is smaller at a distance from second antenna than third loop portion.
14. antenna assembly according to claim 13, wherein
Third loop portion is close to the third antenna.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-253809 | 2016-12-27 | ||
| JP2016253809 | 2016-12-27 | ||
| PCT/JP2017/041650 WO2018123345A1 (en) | 2016-12-27 | 2017-11-20 | Antenna device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110121815A true CN110121815A (en) | 2019-08-13 |
| CN110121815B CN110121815B (en) | 2021-04-16 |
Family
ID=62707425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780080840.5A Active CN110121815B (en) | 2016-12-27 | 2017-11-20 | Antenna device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6673503B2 (en) |
| CN (1) | CN110121815B (en) |
| WO (1) | WO2018123345A1 (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1031159A (en) * | 1987-07-30 | 1989-02-15 | 索尼公司 | Microwave antenna |
| JP2005252406A (en) * | 2004-03-01 | 2005-09-15 | Advanced Telecommunication Research Institute International | Antenna structure and television receiver |
| JP2005295002A (en) * | 2004-03-31 | 2005-10-20 | Matsushita Electric Ind Co Ltd | Antenna system and mobile communication terminal |
| WO2008094927A1 (en) * | 2007-01-29 | 2008-08-07 | Kutta Consulting, Inc. | Omnidirectional antenna system |
| WO2008105126A1 (en) * | 2007-02-28 | 2008-09-04 | Nec Corporation | Array antenna, radio communication apparatus, and array antenna control method |
| CN103943940A (en) * | 2013-01-21 | 2014-07-23 | 联发科技股份有限公司 | Communication device |
| CN104170164A (en) * | 2012-03-13 | 2014-11-26 | 微软公司 | Antenna isolation using a tuned ground plane notch |
| CN204333220U (en) * | 2014-11-19 | 2015-05-13 | 上海安费诺永亿通讯电子有限公司 | Mobile phone mimo antenna structure |
| US20150155624A1 (en) * | 2008-03-05 | 2015-06-04 | Laurent Desclos | Multi leveled active antenna configuration for multiband mimo lte system |
| CN105975889A (en) * | 2012-06-28 | 2016-09-28 | 株式会社村田制作所 | Antenna device and communication terminal device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3296189B2 (en) * | 1996-06-03 | 2002-06-24 | 三菱電機株式会社 | Antenna device |
| JP4297012B2 (en) * | 2003-12-10 | 2009-07-15 | パナソニック株式会社 | antenna |
| JP5308278B2 (en) * | 2009-08-27 | 2013-10-09 | 株式会社エヌ・ティ・ティ・ドコモ | Dual polarization antenna |
-
2017
- 2017-11-20 JP JP2018558901A patent/JP6673503B2/en active Active
- 2017-11-20 CN CN201780080840.5A patent/CN110121815B/en active Active
- 2017-11-20 WO PCT/JP2017/041650 patent/WO2018123345A1/en active Application Filing
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1031159A (en) * | 1987-07-30 | 1989-02-15 | 索尼公司 | Microwave antenna |
| JP2005252406A (en) * | 2004-03-01 | 2005-09-15 | Advanced Telecommunication Research Institute International | Antenna structure and television receiver |
| JP2005295002A (en) * | 2004-03-31 | 2005-10-20 | Matsushita Electric Ind Co Ltd | Antenna system and mobile communication terminal |
| WO2008094927A1 (en) * | 2007-01-29 | 2008-08-07 | Kutta Consulting, Inc. | Omnidirectional antenna system |
| WO2008105126A1 (en) * | 2007-02-28 | 2008-09-04 | Nec Corporation | Array antenna, radio communication apparatus, and array antenna control method |
| US20150155624A1 (en) * | 2008-03-05 | 2015-06-04 | Laurent Desclos | Multi leveled active antenna configuration for multiband mimo lte system |
| CN104170164A (en) * | 2012-03-13 | 2014-11-26 | 微软公司 | Antenna isolation using a tuned ground plane notch |
| CN105975889A (en) * | 2012-06-28 | 2016-09-28 | 株式会社村田制作所 | Antenna device and communication terminal device |
| CN103943940A (en) * | 2013-01-21 | 2014-07-23 | 联发科技股份有限公司 | Communication device |
| CN204333220U (en) * | 2014-11-19 | 2015-05-13 | 上海安费诺永亿通讯电子有限公司 | Mobile phone mimo antenna structure |
Non-Patent Citations (1)
| Title |
|---|
| 黎淑兰等: ""移动终端内置天线技术及其进展"", 《北京邮电大学学报》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6673503B2 (en) | 2020-03-25 |
| CN110121815B (en) | 2021-04-16 |
| JPWO2018123345A1 (en) | 2019-07-11 |
| WO2018123345A1 (en) | 2018-07-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2835862B1 (en) | Antenna | |
| JP6465109B2 (en) | Multi-antenna and radio apparatus including the same | |
| US20180315539A1 (en) | Precision transformer for antenna elements | |
| JP6948526B2 (en) | Antenna device and electronic equipment | |
| US20130162496A1 (en) | Multi-antenna device and communication apparatus | |
| US10135152B2 (en) | Antenna device and electronic device | |
| KR20110093599A (en) | Ground radiator using capacitor | |
| CN106159433B (en) | Wireless electron wearable device and its antenna structure | |
| CN111052500B (en) | Antenna assembly and mobile terminal | |
| JP6229814B2 (en) | Communication terminal device | |
| US11749903B2 (en) | Antenna structure | |
| CN105870597A (en) | Dual-antenna scheme sharing metal back cover | |
| KR20020037261A (en) | Portable communication terminal for improving specific absorption rate | |
| CN110121815A (en) | Antenna assembly | |
| WO2011126306A1 (en) | Antenna having a broadband power supply structural body, and a power supply method | |
| KR101927797B1 (en) | Antenna and communication terminal including the same | |
| EP2267836B1 (en) | Handheld electronic device | |
| CN107808993B (en) | Mobile phone metal plate radiation antenna with annular resonance structure | |
| WO2016186090A1 (en) | Antenna device and electronic apparatus | |
| US11843159B2 (en) | Split ring resonator and communication device | |
| CN112310603B (en) | Intelligent watch | |
| KR101805319B1 (en) | A Multiband omni antenna using the diplexer matching network | |
| JP2017130770A (en) | Antenna device | |
| US20170358860A1 (en) | Antenna device and wireless device | |
| JP2010199826A (en) | Electric field antenna device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |