CN104901017B - slot antenna with multiple boundary conditions - Google Patents
slot antenna with multiple boundary conditions Download PDFInfo
- Publication number
- CN104901017B CN104901017B CN201510198986.2A CN201510198986A CN104901017B CN 104901017 B CN104901017 B CN 104901017B CN 201510198986 A CN201510198986 A CN 201510198986A CN 104901017 B CN104901017 B CN 104901017B
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- Prior art keywords
- passive component
- slot antenna
- metal covering
- slotted eye
- frequency
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- 239000002184 metal Substances 0.000 claims abstract description 48
- 229910052751 metal Inorganic materials 0.000 claims abstract description 48
- 239000000758 substrate Substances 0.000 claims abstract description 12
- 239000003990 capacitor Substances 0.000 claims description 10
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 4
- 239000010931 gold Substances 0.000 claims description 4
- 229910052737 gold Inorganic materials 0.000 claims description 4
- 230000001939 inductive effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 12
- 238000004891 communication Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Abstract
The present invention relates to an antenna, and more particularly, to a slot antenna with multiple boundary conditions. A slot antenna with multiple boundary conditions, comprising: a substrate, a first passive component, a second passive component, a third passive component, a signal feed-in point and a signal feed-in wire. One side of the substrate is provided with a metal surface, and the metal surface is provided with a slotted hole; the first passive component, the second passive component and the third passive component are positioned on the slotted hole and are electrically connected with the upper metal surface and the lower metal surface; the signal feed-in point is positioned on the upper metal surface and the lower metal surface at two sides of the slotted hole. The invention links several passive components on the slot of the slot antenna, the impedance value of the passive component will change with the frequency change under different frequency, so the impedance matching and resonance mode of the antenna have higher degree of freedom, and the slot antenna can work in the multi-band working environment.
Description
Technical field
The present invention relates to a kind of antenna, espespecially a kind of slot antenna with multiple boundary condition.
Background technology
As wireless communication technology, the information processing technology are developed rapidly, mobile phone, personal digital assistant
Portable radio communication devices such as (personal digital assistant, PDA) competitively emerges in large numbers, and enters huge numbers of families,
Consumer is set to enjoy a variety of facilities that high-tech is brought whenever and wherever possible so that the grade portable radio communication device has turned into
The indispensable part of modern's daily life.
Traditional slot antenna is broadly divided into two kinds of designs, and Fig. 1 is that a metal covering 101 is formed with a substrate 100,
A slotted eye 102 is offered on the metal covering 101, the two ends of the slotted eye 102 form blind end 102a, and with the slotted eye 102
Meta is equipped with a signal feed-in point 103, in receiving and transmitting signal, and the electric current can be concentrated on around slotted eye 102, to form two/
The slot antenna of one wavelength resonances.It is another as shown in Fig. 2 being formed with a metal covering 201, the metal covering on a substrate 200
A slotted eye 202 is offered on 201, the one end of slotted eye 202 is open end 202a, the other end is blind end 202b, and in the slotted eye
202 interposition is equipped with a signal feed-in point 203, is having a signal feed-in wire with the electrical communication of signal feed-in point 203
204, in receiving and transmitting signal, electric current can concentrate on blind end 202b, to form the slot antenna of quarter-wave resonance.
The slot antenna resonated due to two kinds above-mentioned of 1/2nd wavelength resonances and quarter-wave, although make row
Dynamic communication device is worked under the mode of multiband, but this two kinds of slot antenna working mechanisms itself are more simple, are difficult reality
Existing multifrequency framework, is also more limited in the application of running gear.
The content of the invention
Therefore, the main object of the present invention, is the defect for making up traditional slot antenna, groove of the present invention in slot antenna
Electrical communication has several passive components on hole, at different frequencies, and the impedance value of the passive component (inductor and capacitor) will
Change with frequency and change, and the impedance matching of antenna and resonance mode is had the higher free degree, allow the slot antenna
It can be operated in the working environment of multiband.
For up to above-mentioned purpose, the present invention provides a kind of slot antenna for having multiple boundary condition, including：One substrate, one
First passive component, one second passive component, one the 3rd passive component, a signal feed-in point and a signal feed-in wire；The base
The one side of plate has a metal covering, and in offering a slotted eye on the metal covering, the slotted eye makes the metal covering divide into metal
Face and lower metal covering；The first passive component system be located at the slotted eye one end position on, and with metal covering on this and the lower gold
Category face electrical connection.The second passive component system be located at the slotted eye another end position on, and with metal covering on this and the lower gold
Category face electrical connection；The slot antenna has three resonance modes, a respectively low frequency modal, the first high frequency mode, the second high frequency
Mode；3rd passive component system is located on the position of the slotted eye between first passive component and second passive component, and
With metal covering on this and the lower metal covering electrical connection；The signal feed-in point system is passive positioned at first passive component and the 3rd
On the position of slotted eye between component, feed-in can be fed directly into or coupled；Wherein, the first passive component and second passive component
Distance correspond to the quarter-wave of low frequency modal, now, the first passive component can equivalent short circuit, the 3rd passive component can
Equivalent open circuit, the equivalent inductive boundary condition of the second passive component, can reach low-frequency resonance mode preferable impedance
Match somebody with somebody；Wherein, the distance of the first passive component and the 3rd passive component corresponds to a wavelength of the first high frequency mode, now,
First passive component can equivalent short circuit, the second passive component equivalent can open a way, and the 3rd passive component can equivalent short circuit；Wherein, believe
The distance of number load point position and the 3rd passive component corresponds to 1/2nd wavelength of the second high frequency mode, now, first
Passive component equivalent can be opened a way, and the second passive component equivalent can be opened a way, and the 3rd passive component can equivalent short circuit.
In one of present invention embodiment, the slotted eye is strip.
In one of present invention embodiment, the substrate is microwave base plate.
In one of present invention embodiment, first passive component is inductor.
In one of present invention embodiment, second passive component is inductor, the inductance value of the inductor be more than this
The inductance value of one passive component inductor.
In one of present invention embodiment, the 3rd passive component is capacitor.
Brief description of the drawings
Fig. 1 is traditional slot antenna structural representation；
Fig. 2 is traditional another slot antenna structural representation；
Fig. 3 is the slot antenna structural decomposition diagram on the multiple border of tool of the present invention；
Fig. 4 is the slot antenna structure combination diagram on the multiple border of tool of the present invention；
Fig. 5 is the slot antenna structure on the multiple border of tool of the present invention in low-frequency resonance mode schematic diagram；
Fig. 6 is Fig. 5 reflection coefficient curve schematic diagram；
Fig. 7 is the slot antenna structure on the multiple border of tool of the present invention in the first high-frequency resonance mode schematic diagram；
Fig. 8 is Fig. 7 reflection coefficient curve schematic diagram；
Fig. 9 is the slot antenna structure on the multiple border of tool of the present invention in the second high-frequency resonance mode schematic diagram；
Figure 10 is Fig. 9 reflection coefficient curve schematic diagram；
In figure：10th, slot antenna；1st, substrate；11st, metal covering；111st, upper metal covering；112nd, lower metal covering；12nd, slotted eye；
2nd, the first passive component；3rd, the second passive component；4th, the 3rd passive component；5th, signal feed-in point；51st, 52 electrical connection portion；L1
Quarter-wave resonates；Mono- wavelength resonances of L2；The wavelength resonances of L3 1/2nd.
Embodiment
Hereby the technical content and a detailed description of the relevant present invention, coordinate schema to be described as follows now：
Fig. 3 and Fig. 4 is referred to, is the slot antenna STRUCTURE DECOMPOSITION and combination diagram on the multiple border of tool of the present invention.Such as
Shown in figure：The slot antenna 10 on the multiple border of tool of the present invention, including：One substrate 1, one first passive component 2, one second are passive
Component 3, one the 3rd passive component 4 and a signal feed-in point 5.
The substrate 1, thereon one side there is a metal covering 11, in offering a strip its width on the metal covering 11 about
For 4mm slotted eye 12, the metal covering 11 is divided into upper metal covering 111 and lower metal covering 112 by the slotted eye 12.In this schema,
The substrate 1 is microwave base plate.
First passive component 2, be on the position of one end of the slotted eye 12, and with metal covering on this 111 and this
The electrical connection of metal covering 112.In this schema, first passive component 2 is inductor, and the inductance value of the inductor is 15nH
(Henry).
Second passive component 3, be on another end position of the slotted eye 12, and with metal covering on this 111 and this
The electrical connection of metal covering 112, second passive component 3 has the impedance matching part for strengthening low frequency.In this schema, this second
Passive component 3 is inductor, and the inductance value of the inductor is 30nH (Henry).
3rd passive component 4, is the slotted eye 12 between first passive component 2 and second passive component 3
On position, and with metal covering on this 111 and the lower electrical connection of metal covering 112.In this schema, the 3rd passive component 4 is
Capacitor, the capacitance of the capacitor is 1PF (picofarad).
The signal feed-in point 5, is that, with two electrical connection portions 51,52, the two electrical connections portion 51,52 is located at the slotted eye 12
On this of two sides on metal covering 111 and the lower metal covering 112, the positive and negative terminal of feed-in component is linked with the signal feed-in point 5.
By first passive component 2 and second passive component 3 of above-mentioned slot antenna 10 be all inductor and should
3rd passive component 4 is under the design of capacitor, at different frequencies, the impedance value of the inductor and the capacitor will be with frequency
Change and change, different boundary conditions will trigger different resonance mechanisms, the slot antenna is operated in the letter of multiband
Number transmitting and receive mode.
Fig. 5 and Fig. 6 is referred to, is the slot antenna structure on the multiple border of tool of the present invention in low-frequency resonance mode and Fig. 5
Reflection coefficient curve schematic diagram.As shown in the figure：When slot antenna 10 is in low frequency, make first passive component (inductor
Inductance value is 15nH) 2 when short-circuit condition is presented, open circuit shape is all presented in the 3rd passive component (capacitance of capacitor be 1PF) 4
During state, second passive component (inductor 30nH) 3 and this now correspond to an inductive boundary condition, low frequency modal can be reached
To preferable matching, electric current is flowed by first passive component 2 to the lower metal covering 112 by upper metal covering 111, makes the slotted eye day
First passive component 2 of line 10 to the mode that the L1 between second passive component 3 is quarter-wave resonance (is Low-frequency Modes
State), such as Fig. 6 A points for frequency in 600MHZ, be -30dB.
Refer to Fig. 7 and Fig. 8, be the present invention the multiple border of tool slot antenna structure in the first high-frequency resonance mode and
Fig. 7 reflection coefficient curve schematic diagram.As shown in the figure：When slot antenna 10 is near the first high-frequency resonance modal frequency, make
The passive component (capacitance of capacitor is 1PF) 4 of first passive component (inductance value of inductor is 15nH) 2 and the 3rd is all
When short-circuit condition is presented, when open-circuit condition is presented in second passive component (inductor 30nH) 3, make the first of the slot antenna 10
L2 between the passive component 4 of passive component 2 to the 3rd is the mode of a wavelength resonances, and such as Fig. 8 B points are that frequency exists
It is -18.5dB during 1.775GHZ.
Fig. 9 and Figure 10 is referred to, is the slot antenna structure on the multiple border of tool of the present invention in the second high-frequency resonance mode
And Fig. 9 reflection coefficient curve schematic diagram.As shown in the figure：When slot antenna 10 is near the second high-frequency resonance modal frequency,
Make first passive component (inductance value of inductor is 15nH) 2 and second passive component (inductor 30nH) 3 all in open circuit,
Short circuit is presented in 3rd passive component (capacitance of capacitor be 1PF) 4, make the signal feed-in point 5 of the slot antenna 10 to
L3 between 3rd passive component 4 is the mode of 1/2nd wavelength resonances, and such as Figure 10 C points are frequency in 2.225GHZ
When, it is -32.8dB.
The preferred embodiments of the invention is above are only, not for limiting the scope of implementation of the invention.That is Fan Yiben
The equivalent changes and modifications that patent application the scope of the claims is done, are all that the scope of the claims of the present invention is covered.
Claims (4)
1. a kind of slot antenna for having multiple boundary condition, including：
One substrate, one side is with a metal covering thereon, and in offering a slotted eye on the metal covering, the slotted eye makes the metal covering area
It is divided into metal covering and lower metal covering；
One signal feed-in point, is that, with two electrical connection portions, the two electrical connections portion is located at metal covering on this of the side of slotted eye two
And on the lower metal covering；
One first passive component, the first passive component be inductor, be on the position of one end of the slotted eye, and with gold on this
Category face and the lower metal covering electrical connection, the slot antenna resonate when low frequency modal and the first high frequency mode, and first is passive
Component equivalent is short circuit, and the slot antenna resonates when the second high frequency mode, and the first passive component is equivalent to open circuit；
One second passive component, the second passive component be inductor, be on another end position of the slotted eye, and with gold on this
Category face and the lower metal covering electrical connection, the slot antenna resonate when low frequency modal, the equivalent inductive of the second passive component
Boundary condition, the slot antenna resonates when the first high frequency and the second high frequency mode, the equivalent open circuit of the second passive component；
One the 3rd passive component, the 3rd passive component is capacitor, is positioned at first passive component and second passive component
Between slotted eye position on, and with metal covering on this and the lower metal covering electrical connection, the slot antenna resonates in Low-frequency Modes
During state, the 3rd passive component is equivalent to open circuit, and the slot antenna resonates when the first high frequency and the second high frequency mode, the 3rd quilt
Dynamic component equivalent is short circuit；
Wherein, the spacing of the first passive component and the second passive component corresponds to the quarter-wave of low-frequency resonance mode；
Wherein, the spacing of the first passive component and the 3rd passive component corresponds to a wavelength of the first high-frequency resonance mode；
Wherein, signal feed-in point and the spacing of the 3rd passive component correspond to 1/2nd wavelength of the second high-frequency resonance mode.
2. the slot antenna of the multiple boundary condition of tool according to claim 1, it is characterised in that：The slotted eye is strip.
3. the slot antenna of the multiple boundary condition of tool according to claim 1, it is characterised in that：The substrate is microwave-based
Plate.
4. the slot antenna of the multiple boundary condition of tool according to claim 1, it is characterised in that：Second passive component electricity
The inductance value of sensor is more than the inductance value of the first passive component inductor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW104102292A TWI553959B (en) | 2015-01-23 | 2015-01-23 | Slot antenna with multiple boundary conditions |
| TW104102292 | 2015-01-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104901017A CN104901017A (en) | 2015-09-09 |
| CN104901017B true CN104901017B (en) | 2017-10-31 |
Family
ID=53967481
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520253818.4U Withdrawn - After Issue CN204614954U (en) | 2015-01-23 | 2015-04-24 | slot antenna with multiple boundary conditions |
| CN201510198986.2A Withdrawn - After Issue CN104901017B (en) | 2015-01-23 | 2015-04-24 | slot antenna with multiple boundary conditions |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520253818.4U Withdrawn - After Issue CN204614954U (en) | 2015-01-23 | 2015-04-24 | slot antenna with multiple boundary conditions |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN204614954U (en) |
| TW (1) | TWI553959B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI553959B (en) * | 2015-01-23 | 2016-10-11 | 泓博無線通訊技術有限公司 | Slot antenna with multiple boundary conditions |
| US10333201B2 (en) * | 2016-08-09 | 2019-06-25 | Verily Life Sciences Llc | Multi-antenna wearable device |
| TWI732931B (en) * | 2016-09-29 | 2021-07-11 | 仁寶電腦工業股份有限公司 | Antenna structure |
| TWI616026B (en) * | 2017-02-17 | 2018-02-21 | 和碩聯合科技股份有限公司 | Electronic device |
| US10734714B2 (en) * | 2018-05-29 | 2020-08-04 | Apple Inc. | Electronic device wide band antennas |
| CN112825387A (en) * | 2019-11-21 | 2021-05-21 | 启碁科技股份有限公司 | Antenna structure |
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|---|---|---|---|---|
| US4367475A (en) * | 1979-10-30 | 1983-01-04 | Ball Corporation | Linearly polarized r.f. radiating slot |
| JPH057110A (en) * | 1991-06-19 | 1993-01-14 | Kyocera Corp | Flat plate type slot antenna |
| US5754143A (en) * | 1996-10-29 | 1998-05-19 | Southwest Research Institute | Switch-tuned meandered-slot antenna |
| CN1921221A (en) * | 2005-08-23 | 2007-02-28 | 索尼株式会社 | Slot antenna |
| CN1922757A (en) * | 2004-02-19 | 2007-02-28 | 株式会社Emw天线 | Internal antenna for handset and design method thereof |
| CN103579778A (en) * | 2012-08-09 | 2014-02-12 | 英特尔移动通信有限责任公司 | Antenna system, method and mobile communication device |
| TW201409828A (en) * | 2012-08-29 | 2014-03-01 | Htc Corp | Mobile device |
| CN204614954U (en) * | 2015-01-23 | 2015-09-02 | 威海市泓淋电子有限公司 | slot antenna with multiple boundary conditions |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7176842B2 (en) * | 2004-10-27 | 2007-02-13 | Intel Corporation | Dual band slot antenna |
| US20100289713A1 (en) * | 2007-05-16 | 2010-11-18 | Toru Taura | Slot antenna |
| TWI466382B (en) * | 2013-10-03 | 2014-12-21 | Acer Inc | Mobile communication device |
-
2015
- 2015-01-23 TW TW104102292A patent/TWI553959B/en active
- 2015-04-24 CN CN201520253818.4U patent/CN204614954U/en not_active Withdrawn - After Issue
- 2015-04-24 CN CN201510198986.2A patent/CN104901017B/en not_active Withdrawn - After Issue
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4367475A (en) * | 1979-10-30 | 1983-01-04 | Ball Corporation | Linearly polarized r.f. radiating slot |
| JPH057110A (en) * | 1991-06-19 | 1993-01-14 | Kyocera Corp | Flat plate type slot antenna |
| US5754143A (en) * | 1996-10-29 | 1998-05-19 | Southwest Research Institute | Switch-tuned meandered-slot antenna |
| CN1922757A (en) * | 2004-02-19 | 2007-02-28 | 株式会社Emw天线 | Internal antenna for handset and design method thereof |
| CN1921221A (en) * | 2005-08-23 | 2007-02-28 | 索尼株式会社 | Slot antenna |
| CN103579778A (en) * | 2012-08-09 | 2014-02-12 | 英特尔移动通信有限责任公司 | Antenna system, method and mobile communication device |
| TW201409828A (en) * | 2012-08-29 | 2014-03-01 | Htc Corp | Mobile device |
| CN204614954U (en) * | 2015-01-23 | 2015-09-02 | 威海市泓淋电子有限公司 | slot antenna with multiple boundary conditions |
Non-Patent Citations (1)
| Title |
|---|
| "Multi-band Slot Antenna Design Using Branch Edge";Chichang Hung etc.;《Antennas and Propagation Society International Symposium(APSURSI),2014 IEEE》;20140922;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN204614954U (en) | 2015-09-02 |
| TW201628265A (en) | 2016-08-01 |
| CN104901017A (en) | 2015-09-09 |
| TWI553959B (en) | 2016-10-11 |
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Address after: 264213 No. 9-10 Pudong Road, Weihai Economic and Technological Development Zone, Shandong Province Patentee after: Weihai city Hong Lin Electric Power Technology Limited by Share Ltd Address before: 264213 No. 9-10 Pudong Road, Weihai Economic and Technological Development Zone, Shandong Province Patentee before: Weihai Honglin Electronics Co., Ltd. |
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