CN103427149B - Antenna and electronic installation - Google Patents
Antenna and electronic installation Download PDFInfo
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- CN103427149B CN103427149B CN201210167735.4A CN201210167735A CN103427149B CN 103427149 B CN103427149 B CN 103427149B CN 201210167735 A CN201210167735 A CN 201210167735A CN 103427149 B CN103427149 B CN 103427149B
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- grounding parts
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Abstract
The open a kind of antenna of the present invention and electronic installation.This antenna is used for an electronic installation, and this antenna includes a radiant body；One signal feed side, this signal feed side is electrically connected at this radiant body, for feed-in one radiofrequency signal to this radiant body, to launch this radiofrequency signal by this radiant body；One grounding parts, this grounding parts is used for providing being grounded on this antenna；One earth terminal, this earth terminal is electrically connected at this grounding parts；One first connects unit, and this first connection unit is electrically connected at this signal feed side；One second connects unit, and this second connection unit is electrically connected at this earth terminal；And a transmission line, this transmission line is electrically connected at this and first connects unit and second be connected unit with this, it is used for transmitting this radiofrequency signal, and first connects unit by this this radiofrequency signal is transferred to this signal feed side, and second connect unit by this and be electrically connected at this earth terminal.The present invention increases the utilization rate of electronic installation inner space, improves the isolation between antenna.
Description
Technical field
The present invention relates to a kind of antenna and electronic installation, a kind of antenna with good integration and electronic installation.
Background technology
The electronic installation typically with mobile communication function is launched by antenna or receives mobile electric wave, with transmission or exchange
Mobile communication number, and then access one mobile communication system.In order to allow user can access mobile communication system more easily, preferable
The frequency range of antenna should increase in tolerance band as much as possible, and size then should reduce as far as possible, to coordinate miniaturization of electronic products
Trend.Therefore, along with electronic installation volume and the trend of antenna reduced space, the most effectively utilize within electronic installation
Space configures, and is entered by aerial integration among electronic installation, it has also become one of challenge of industry.
Accordingly, it is desirable to provide a kind of antenna and electronic installation are to solve the problems referred to above.
Summary of the invention
Therefore, present invention is primarily targeted at a kind of antenna having good integration of offer and electronic installation.
The open a kind of antenna of the present invention, for an electronic installation, this antenna includes a radiant body；One signal feed side, should
Signal feed side is electrically connected at this radiant body, for feed-in one radiofrequency signal to this radiant body, to be launched by this radiant body
This radiofrequency signal；One grounding parts, this grounding parts is used for providing being grounded on this antenna；One earth terminal, this earth terminal is electrically connected at
This grounding parts；One first connects unit, and this first connection unit is electrically connected at this signal feed side；One second connects unit,
This second connection unit is electrically connected at this earth terminal；And a transmission line, this transmission line be electrically connected at this first connect single
Unit second is connected unit with this, for transmitting this radiofrequency signal, and this radiofrequency signal is transferred to by this first connection unit
This signal feed side, and it is electrically connected at this earth terminal by this second connection unit.
Invention additionally discloses a kind of electronic installation, this electronic installation includes a radiofrequency signal processing unit, is used for producing one
First radiofrequency signal；And a first antenna, this first antenna is coupled to this radiofrequency signal processing unit, and this first antenna includes
One first radiant body；One first signal feed side, this first signal feed side is electrically connected at this first radiant body, for feed-in
This first radiofrequency signal is to this first radiant body, to launch this first radiofrequency signal by this first radiant body；One first ground connection
Portion, this first grounding parts is used for providing being grounded on this first antenna；One first earth terminal, this first earth terminal is electrically connected at this
First grounding parts；One first connects unit, and this first connection unit is electrically connected at this first signal feed side；One second connects
Unit, this second connection unit is electrically connected at this first earth terminal；And a transmission line, this transmission line be electrically connected at this
One connects unit second is connected unit with this, for transmitting this first radiofrequency signal, and by this first connection unit by this
One radiofrequency signal is transferred to this first signal feed side, and is electrically connected at this first ground connection by this second connection unit
End.
The present invention effectively utilizes the space configuration within electronic installation, increases the utilization rate of electronic installation inner space,
Improving the isolation between antenna and antenna, with in the confined space, the emission efficiency making antenna will not be by too much influence.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the embodiment of the present invention one electronic installation.
Fig. 2 is the transmission line of Fig. 1, I-PEX adapter and the detailed structure view of U.FL adapter.
Fig. 3 is the schematic diagram of another electronic installation of the embodiment of the present invention.
Fig. 4 is voltage standing wave ratio and the schematic diagram of its isolation of the antenna of Fig. 3.
Primary clustering symbol description:
MS, MS_3 electronic installation
AMD, AMD_3 Anneta module
11,32 antenna
13 housings
110,320 radiant body
112,322 signal feed side
RF_1, RF_2 radiofrequency signal
GND, GND_2,471 grounding parts
111 branches
113 earth terminals
40 radiofrequency signal processing units
41,42,43 connect unit
44 transmission lines
45 system circuit boards
46 I-PEX adapters
47 U.FL adapters
441 outer conductors
442 inner wires
Stitch in 472
M1, M2 match circuit
Detailed description of the invention
Refer to the schematic diagram that Fig. 1, Fig. 1 are the embodiment of the present invention one electronic installation MS.Electronic installation MS includes antenna
11, housing 13, system circuit board 45 and a radiofrequency signal processing unit 40.Housing 13 can be used for any electronic installation,
Such as mobile phone, tablet PC, global positioning system (Global Positioning System, GPS) or USB adapter
Etc. (Dongle) having the electronic installation of radio communication function, housing 13 is in addition to being used for being coated with electronic installation MS, it on together
Time be formed with antenna 11, be used for launch and receive radiofrequency signal RF_1, reach the function of radio communication.Wherein, antenna 11 can
It is formed on housing 13 by technology such as Laser Direct Depositions (Laser Direct Structuring, LDS), therefore shell
The combination of body 13 and antenna 11 also can be considered an Anneta module AMD.Radiofrequency signal processing unit 40 is arranged at system circuit board
On 45, it is used for producing radiofrequency signal RF_1 and processing radiofrequency signal RF_1 of antenna 11 transmitting-receiving.System circuit board 45 is preferable
Being the printed circuit board (PCB) (Printed Circuit Board, PCB) of a multiple structure, at least a part of which one layer can be a ground plane,
It is used as a reference grounding parts GND_2 of remaining electronic building brick on system circuit board 45.
Specifically, antenna 11 includes radiant body 110, signal feed side 112, earth terminal 113, grounding parts
GND, a branch 111, connection unit 41, a 42 and transmission line 44.Signal feed side 112 is electrically connected at radiant body 110, uses
Carry out feed-in radiofrequency signal RF_1 to radiant body 110, to launch radiofrequency signal RF_1 in the air by radiant body 110.Grounding parts GND
It is electrically connected at earth terminal 113, is used for providing being grounded on antenna 11.Branch 111 is electrically connected at radiant body 110 and grounding parts
Between GND, in other embodiments, antenna designers can select increase branch or do not use according to practical application request.Connect
Unit 41,42 is electrically connected with in signal feed side 112 and earth terminal 113.Transmission line 44 is electrically connected at connection unit
41,42, it is used for transmitting radiofrequency signal RF_1, and by connecting unit 41, radiofrequency signal RF_1 is transferred to signal feed side 112,
And it is electrically connected at earth terminal 113 and grounding parts GND by connecting unit 42.Connect unit 41,42 and transmission line 44
Arrange on system circuit board 45, wherein connect unit 41, a 42 preferably thimble (Pogo Pin).It addition, system circuit board
45 can separately arrange match circuit M1 thereon, and wherein match circuit M1 is coupled to connect between unit 41,42, to be coupled to ground connection
Between portion GND and antenna 11, it is used for mating antenna 11.Match circuit M1 can be by electronic building brick institute groups such as electric capacity, inductance or resistance
Becoming, wherein match circuit M1 is preferably provided near the position connecting unit 41,42.
As it is shown in figure 1, antenna 11 can be considered a dipole antenna (Dipole Antenna) or a planar inverted-F antenna
(Planar Inverted-F Antenna, PIFA).Specifically, radiant body 110 forms dipole antenna with grounding parts GND
Framework, and radiant body 110 also comprises branch 111, is electrically connected between radiant body 110 and grounding parts GND, to form planar inverted
The framework of F antenna.Grounding parts GND and radiant body 110 can have a serpentine shape or at least one bending, with the limited sky at housing 13
In between, extend grounding parts GND and the length of radiant body 110.In addition, transmission line 44 can be used to equivalence and increases radiant body 110
Electrical length, make antenna 11 resonate out the frequency range needed for low-frequency band.Therefore, antenna designers can according to practical application request,
Appropriateness adjusts radiant body 110 and the length of grounding parts GND or the quantity of bending, or the length of adjustment transmission line 44, in the hope of
Optimal antenna usefulness.
It should be noted that and connect unit 42 for being electrically connected with connecing of earth terminal 113 and radiofrequency signal processing unit 40
Ground portion GND, makes the return electric current of antenna 11 be back to radiofrequency signal processing unit 40 by grounding parts GND through connecting unit 42.
The two ends of transmission line 44 include I-PEX adapter 46, combine to pass by the U.FL adapter 47 on system circuit board 45
Pass radiofrequency signal RF_1.Specifically, refer to Fig. 2, Fig. 2 is transmission line 44, I-PEX adapter 46 and U.FL adapter 47
Detailed structure view.As in figure 2 it is shown, transmission line 44 preferably has the transmission line of specified impedance value, such as resistance value 50 ohm
(ohm) coaxial cable (coaxial cable) etc., it includes an outer conductor (braid shielded) 441 and an inner wire is (interior
Heart yearn) 442.Outer conductor 441 is electrically connected at the grounding parts (i.e. the metal ironware of its outward appearance) of I-PEX adapter 46, inner wire
The 442 interior stitch (Inner pin, be not plotted in figure) being electrically connected at I-PEX adapter 46, are used for transmitting radiofrequency signal RF_
1.It should be noted that the outer conductor 441 of transmission line 44, the grounding parts of I-PEX adapter 46 and U.FL adapter 47 are peripheral
The grounding parts 471 of annular must be electrically connected to grounding parts GND(or connect unit 42) so that the transfer route of radiofrequency signal RF_1
It is able to reference to continuous print grounding parts GND.For example, the grounding parts of I-PEX adapter 46 and the ground connection of U.FL adapter 47
Portion 471 can be via the cabling (Trace is not plotted in figure) of the one of multilayer system circuit board 45 layer and grounding parts GND(or be connected single
Unit 42) it is electrically connected with, therefore the transfer route of radiofrequency signal RF_1 is able to reference to continuous print grounding parts GND.Consequently, it is possible to work as I-
When PEX adapter 46 combines with U.FL adapter 47, radiofrequency signal RF_1 can by the inner wire 442 of transmission line 44, I-PEX even
Connect the interior stitch of device 46, the interior stitch 472 of U.FL adapter 47 or even connection unit 42 and be transferred to antenna 11, and radiofrequency signal
The transfer route of RF_1 is all with reference to identical grounding parts GND.Under this framework, when including antenna 11 and the sky of housing 13
When wire module AMD combines with system circuit board 45, antenna 11 can be by connecting in unit 41 and 42 and system circuit board 45
Radiofrequency signal processing unit 40 be connected, to reach the function of radio communication.
Refer to the schematic diagram that Fig. 3, Fig. 3 are the embodiment of the present invention another electronic installation MS_3.It is compared to electronic installation
MS, electronic installation MS_3 also include an antenna 32, and therefore electronic installation MS_3 may utilize plural antenna and launches simultaneously
And receive mobile electric wave, it is used for performing multiple-input and multiple-output (Multiple Input Multiple Output, MIMO) technology,
To promote the data throughout (Throughput) of electronic installation MS_3.Electronic installation MS_3 include antenna 11,32, housing
13, system circuit board 45 and radiofrequency signal processing unit 40, wherein antenna 11,32 and housing 13 also can be considered an antenna mould
Block AMD_3.Antenna 32 is used for launching and receiving radiofrequency signal RF_2, and wherein antenna 32 also can be by a Laser Direct Deposition etc.
Technology is formed on housing 13.Radiofrequency signal processing unit 40 is used for producing another radiofrequency signal RF_2 and processing antenna 32
Radiofrequency signal RF_2 of transmitting-receiving.
Specifically, antenna 32 includes radiant body 320, signal feed side 322 and connects unit 43, is wherein
The grounding parts GND_2 of system circuit board 45 can also be used as the grounding parts of antenna 32.Signal feed side 322 is electrically connected at radiation
Body 320, for feed-in radiofrequency signal RF_2 to radiant body 320, to launch radiofrequency signal RF_2 in the air by radiant body 320.
Connect unit 43 and arrange on system circuit board 45, be used for being electrically connected with signal feed side 322, to transmit radiofrequency signal RF_2 extremely
Signal feed side 322, wherein connects a unit 43 preferably thimble.It addition, system circuit board 45 can also set up a match circuit
Thereon, wherein match circuit M2 is coupled to grounding parts GND_2 and is connected unit between 43 M2, is used for mating antenna 32.Coupling
Circuit M2 can be made up of electronic building bricks such as electric capacity, inductance or resistance, and match circuit M2 is preferably provided near connecting unit
The position of 43.
As it is shown on figure 3, the radiant body 320 of antenna 32 and grounding parts GND_2 form the framework of a dipole antenna.Radiant body
320 can have a serpentine shape or at least one bending, with in the confined space of housing 13, extend the length of radiant body 320, to adjust
All day line 32 radiation frequency.Therefore, antenna designers can be according to practical application request, and appropriateness adjusts the length of radiant body 320
Or the quantity of bending, in the hope of optimal antenna usefulness.
Under this framework, when the Anneta module AMD_3 and system circuit board 45 phase that include antenna 11,32 and housing 13
In conjunction with time, antenna 11,32 can be by connecting unit 41,42 and 43 and the radiofrequency signal processing unit 40 in system circuit board 45
It is connected, to reach the function of radio communication.It should be noted that the grounding parts GND of antenna 11 and the grounding parts of antenna 32
GND_2 is insulated from each other, and antenna 11,32 so can be made to have preferably isolation (Isolation).For example, in small electrical
In sub-device, often apart from close between antenna and antenna, if antenna 11,32 shares identical grounding parts, such as system circuit board
Grounding parts GND_2 so that the image current (Image Current) of antenna 11,32 or return electric current (Return
Current) it is circulated to identical grounding parts GND_2, causes the isolation between antenna 11,32 the best.The best isolation represents
Radiofrequency signal RF_1 of antenna 11 radiation has most energy can be received by antenna 32；Vice versa, antenna 32 radiation
Radiofrequency signal RF_2 has most energy can be received by antenna 11.Therefore, even if antenna 11,32 has good coupling,
But the best isolation equivalence weakens the emission efficiency of antenna 11,32.
Refer to Fig. 4, Fig. 4 and depict voltage standing wave ratio and the isolation of antenna 11,32.Wherein the voltage of antenna 11 is stayed
Bob is represented by dotted lines, and the voltage standing wave ratio of antenna 32 represents with solid line, and isolation represents with dotted line.Due to antenna 11,32
Grounding parts GND, GND_2 mutually insulated so that antenna 11,32 has preferably isolation.As shown in Figure 4, antenna 11,32 is at frequency
The voltage standing wave ratio of rate 867MHz is about 1.4, but isolation to each other only has-8.34dB.Be equivalent to radiofrequency signal RF_1
When feed antenna 11 is to be radiated to aerial, radiofrequency signal RF_1 only has-8.34dB(or 14%) energy received by antenna 32；
Otherwise, when radiofrequency signal RF_2 feed antenna 32 is to be radiated to aerial, radiofrequency signal RF_2 only has the energy of 14% can be by antenna
11 are received.Do not share the coupling that the antenna 11,32 of grounding parts can remain good, and there is preferably isolation, with limited
In space, the emission efficiency making antenna 11,32 will not be by too much influence.
In sum, along with electronic installation volume and the trend of antenna reduced space, the present invention effectively utilizes electronics
Space configuration within device, is formed at radiant body and the grounding parts of antenna on housing, and increases on system circuit board
Add transmission line, with the radiating bands of the antenna low frequency that resonates out, aerial integration is entered among electronic installation.In addition, the present invention
Also multiple antennas and housing are integrated into an Anneta module, increase the utilization rate of electronic installation inner space, and utilize antenna
Do not share the design of grounding parts, make the return electric current of antenna each circulate in different grounding parts, improve between antenna and antenna
Isolation, with in the confined space, the emission efficiency making antenna will not be by too much influence.
The foregoing is only presently preferred embodiments of the present invention, every according to the scope of claims of the present invention made etc.
With change and modification, the covering scope of the present invention all should be belonged to.
Claims (17)
1. an antenna, for an electronic installation, this antenna includes:
One radiant body；
One signal feed side, this signal feed side is electrically connected at this radiant body, for feed-in one radiofrequency signal to this radiant body,
To launch this radiofrequency signal by this radiant body；
One grounding parts, this grounding parts is used for providing being grounded on this antenna；
One earth terminal, this earth terminal is electrically connected at this grounding parts；
One first connects unit, and this first connection unit is electrically connected at this signal feed side；
One second connects unit, and this second connection unit is electrically connected at this earth terminal；And
One transmission line, this transmission line is electrically connected at this and first connects unit and second be connected unit with this, for transmitting this radio frequency
Signal, and first connect unit by this this radiofrequency signal is transferred to this signal feed side, and by this second connect single
Unit is electrically connected at this earth terminal,
Wherein, this transmission line is used for equivalence and increases the electrical length of this radiant body, makes this antenna resonance go out the frequency needed for low-frequency band
Wide；
Wherein, this electronic installation also includes one second antenna and one second grounding parts, and this second grounding parts is used for providing ground connection
In this second antenna, wherein this second grounding parts insulate with this grounding parts of this antenna.
2. antenna as claimed in claim 1, wherein this transmission line is a coaxial cable.
3. antenna as claimed in claim 1, this antenna also includes a branch, and this branch is electrically connected at this radiant body and connects with this
Between ground portion.
4. antenna as claimed in claim 3, this electronic installation also includes a housing, this radiant body of this antenna, this branch with
And this grounding parts is formed on this housing.
5. antenna as claimed in claim 1, wherein this connection unit, this first connection unit and this second connection unit are
One thimble.
6. antenna as claimed in claim 1, wherein this radiant body and this grounding parts have a serpentine shape or at least one bending.
7. antenna as claimed in claim 1, wherein this electronic installation also includes a system circuit board, this transmission line, this first
Connect unit and this second connection unit is arranged on this system circuit board.
8. antenna as claimed in claim 7, is wherein provided with a match circuit on this system circuit board, and this match circuit couples
First connect unit in this and second is connected between unit with this, for mating this antenna.
9. an electronic installation, this electronic installation includes:
One radiofrequency signal processing unit, is used for producing one first radiofrequency signal；And
One first antenna, this first antenna is coupled to this radiofrequency signal processing unit, and this first antenna includes:
One first radiant body；
One first signal feed side, this first signal feed side is electrically connected at this first radiant body, and for feed-in, this first is penetrated
Frequently signal is to this first radiant body, to launch this first radiofrequency signal by this first radiant body；
One first grounding parts, this first grounding parts is used for providing being grounded on this first antenna；
One first earth terminal, this first earth terminal is electrically connected at this first grounding parts；
One first connects unit, and this first connection unit is electrically connected at this first signal feed side；
One second connects unit, and this second connection unit is electrically connected at this first earth terminal；And
One transmission line, this transmission line is electrically connected at this and first connects unit and second be connected unit with this, for transmit this first
Radiofrequency signal, and first connect unit by this this first radiofrequency signal is transferred to this first signal feed side, and pass through
This second connection unit is electrically connected at this first earth terminal,
Wherein, this transmission line is used for equivalence and increases the electrical length of this first radiant body, makes this first antenna resonate out low-frequency band
Required frequency range；
Wherein, this electronic installation also includes one second antenna and one second grounding parts, and this second grounding parts is used for providing ground connection
In this second antenna, wherein this second grounding parts insulate with this first grounding parts of this first antenna.
10. electronic installation as claimed in claim 9, wherein this transmission line is a coaxial cable.
11. electronic installations as claimed in claim 9, wherein this first antenna also includes a branch, and this branch is electrically connected at
Between this first radiant body and this first grounding parts.
12. electronic installations as claimed in claim 11, this electronic installation also includes a housing, this first spoke of this first antenna
Beam, this branch and this first grounding parts are formed on this housing.
13. electronic installations as claimed in claim 12, this second antenna includes:
One second radiant body；
One secondary signal feed side, this secondary signal feed side is electrically connected at this second radiant body, believes for this radio frequency of feed-in
One second radiofrequency signal that number processing unit produces is to this second radiant body, to launch this second radio frequency by this second radiant body
Signal；And
One the 3rd connects unit, and the 3rd connects unit is electrically connected at this secondary signal feed side, is used for transmitting this and second penetrates
Frequently signal is to this secondary signal feed side；
Wherein this second radiant body is formed on this housing.
14. electronic installations as claimed in claim 13, wherein this first connection unit, this second connection unit and the 3rd
Connecting unit is a thimble.
15. electronic installations as claimed in claim 13, wherein this first radiant body, this second radiant body and this first antenna
This first grounding parts there is a serpentine shape or at least one bending.
16. electronic installations as claimed in claim 13, this electronic installation also includes a system circuit board, this transmission line, this
One connects unit, this second connection unit and the 3rd connection unit is arranged on this system circuit board.
17. electronic installations as claimed in claim 16, wherein this system circuit board also includes:
One first match circuit, this first match circuit is coupled to this and first connects unit and second is connected between unit with this, use
Mate this first antenna；And
One second match circuit, this second match circuit is coupled to this second grounding parts of this electronic installation and is connected with the 3rd single
Between unit, it is used for mating this second antenna；
Wherein this first match circuit insulate with this second match circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210167735.4A CN103427149B (en) | 2012-05-25 | 2012-05-25 | Antenna and electronic installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210167735.4A CN103427149B (en) | 2012-05-25 | 2012-05-25 | Antenna and electronic installation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103427149A CN103427149A (en) | 2013-12-04 |
| CN103427149B true CN103427149B (en) | 2016-08-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210167735.4A Active CN103427149B (en) | 2012-05-25 | 2012-05-25 | Antenna and electronic installation |
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| Country | Link |
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| CN (1) | CN103427149B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753554B (en) * | 2013-12-27 | 2017-08-15 | 启碁科技股份有限公司 | Radio-frequency unit and radio communication device |
| TWI633703B (en) * | 2016-11-10 | 2018-08-21 | 耀登科技股份有限公司 | External antenna device and antenna structure thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010110162A1 (en) * | 2009-03-24 | 2010-09-30 | カシオ計算機株式会社 | Multiband antenna and electronic device |
| CN101853977A (en) * | 2009-04-03 | 2010-10-06 | 宏达国际电子股份有限公司 | Mobile device |
| CN201868567U (en) * | 2010-09-30 | 2011-06-15 | 浙江纺织服装职业技术学院 | Terminal Multiple Input Multiple Output (MIMO) antenna |
-
2012
- 2012-05-25 CN CN201210167735.4A patent/CN103427149B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010110162A1 (en) * | 2009-03-24 | 2010-09-30 | カシオ計算機株式会社 | Multiband antenna and electronic device |
| CN101853977A (en) * | 2009-04-03 | 2010-10-06 | 宏达国际电子股份有限公司 | Mobile device |
| CN201868567U (en) * | 2010-09-30 | 2011-06-15 | 浙江纺织服装职业技术学院 | Terminal Multiple Input Multiple Output (MIMO) antenna |
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| CN103427149A (en) | 2013-12-04 |
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