CN102802066B - A kind of hand-held CMMB terminal - Google Patents
A kind of hand-held CMMB terminal Download PDFInfo
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- CN102802066B CN102802066B CN201110181086.9A CN201110181086A CN102802066B CN 102802066 B CN102802066 B CN 102802066B CN 201110181086 A CN201110181086 A CN 201110181086A CN 102802066 B CN102802066 B CN 102802066B
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- sheet metal
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- feeder line
- micro groove
- cmmb
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Abstract
The present invention relates to a kind of hand-held CMMB terminal, including for receiving sound, video signal, export corresponding sound and the broadcast unit of picture；For the CMMB signal received is processed, by the corresponding sound obtained, the processing unit of video signal output to described broadcast unit；And at least one is used for receiving CMMB signal, and the CMMB signal of reception being sent to the antenna of processing unit, this antenna includes the second sheet metal that feeder line, the first sheet metal are oppositely arranged with this first sheet metal；This feeder line passes through this first sheet metal of coupled modes feed-in, and this second sheet metal electrically connects with this feeder line；It is formed with micro groove structure on this first sheet metal.Disclosure satisfy that the requirement that handheld terminal antenna low frequency works.
Description
Technical field
The invention belongs to Technology of Mobile Multimedia field, in particular it relates to a kind of hand-held CMMB
Terminal.
Background technology
CMMB (China Mobile Multimedia Broadcasting, the many matchmakers of China Mobile
Body broadcast) system be utilize high-power S-band satellite-signal cover the whole nation, utilize ground supplement
Transponder is mended point with content repeater satellite signal with frequency simultaneously and is covered satellite-signal blind area, utilizes nothing
Line mobile communications network builds return path, thus forms One-to-All Broadcast and two-way interactive combines
Mobile media broadcasting network.Signal is sent to S-band synchronous satellite by ground launch center
After, the signal received is forwarded by synchronous satellite, the S-band signal directly quilt after forwarding
The reception terminal on ground receives, it is also possible to connecing by ground after being processed by supplement translator
Receipts terminal receives.This satellite sends a signal at supplement translator also by distribution channels
Reason, is forwarded after being processed by supplement translator, and the shadow region covering satellite is augmented.
In prior art, CMMB system use encode, compress, the digital technology such as modulation, be 7
Very little following small-size screen portable reception terminal provides broadcast TV program service, mainly has two big
Terminal Type, one is communication class terminal, i.e. cell phone type hand held television product, is called for short mobile TV；
Another kind of is non-communication class terminal, such as PDA, MP3, MP4, digital camera, notebook computer
Etc. hand held television product.As long as various the small screen portable terminal devices add loads onto a special chip,
A removable hand held television watched will be become.But handheld device antenna is in low frequency work
As time be controlled by the physical constraints of spatial area, and handheld device volume is less, is difficult to meet sky
The requirement of line low frequency work.
Summary of the invention
The technical problem that the invention solves the problems that is to provide a kind of hand-held CMMB terminal, energy
Enough in the case of handheld terminal volume is little, meet the requirement of antenna low frequency work.
The present invention solves above-mentioned technical problem and be the technical scheme is that offer is a kind of hand-held
CMMB terminal, including for receiving sound, video signal, broadcasting of output corresponding sound and picture
Put unit；For the CMMB signal received is processed, by the corresponding sound obtained, video
The processing unit of signal output extremely described broadcast unit；And at least one is used for receiving CMMB
Signal, and the CMMB signal of reception is sent to the antenna of processing unit, this antenna includes feedback
The second sheet metal that line, the first sheet metal are oppositely arranged with this first sheet metal；This feeder line leads to
This first sheet metal of overcoupling mode feed-in, this second sheet metal electrically connects with this feeder line；This is years old
It is formed with micro groove structure on one sheet metal.
This micro groove structure includes complementary opening resonance loop structure, complementary helix structure, opens
Mouthful helical ring structure, dual openings helical ring structure, complementary folding line structure and by above
Several structures are derivative, compound or organize the micro groove structure that battle array obtains.
This feeder line passes through this first sheet metal of Capacitance Coupled feed-in.
Be provided with between this feeder line and this first sheet metal can short circuit point, this can short circuit point electrical connection
This feeder line and this first sheet metal make this feeder line with this first metal of inductive coupled mode feed-in
Sheet.
This antenna also includes the medium being filled between this first sheet metal and this second sheet metal.
This medium substrate is formed with plated-through hole, and is somebody's turn to do this feeder line by this plated-through hole
Second sheet metal electrical connection.
This micro groove structure is formed at this first gold medal by the way of wet etching or dry etching
Belong on sheet.
This medium is made up of ceramic material, macromolecular material, ferroelectric material or ferrite material.
The hand-held CMMB terminal of the present invention, relative to existing technology, has following useful effect
Really: the design framework of traditional antenna broken through by the antenna that the hand-held CMMB terminal of the present invention is used,
The special electromagnetic response utilizing Meta Materials design radiation have very abundant dispersion characteristics, can
To form the New-type radio-frequency antenna of multiple radiation mode.The present invention can remove loaded down with trivial details impedance matching from
Network, has that size is little, process advantage simple, with low cost.Further, the present invention
Also including can be to another sheet metal of Meta Materials micro groove structure couple feed, between two metal sheets
There is medium, due to the corresponding different electromagnetic parameter of different medium thus change two metal sheets it
Between capacitance and finally regulate the operating frequency of radio-frequency antenna so that antenna can be operated in low frequency
Section.And owing to this another sheet metal electrically connects with feeder line, antenna can be made when low working frequency range
The structure simplifying feeder line, the loss reducing feeder line, the performance of the raising low working frequency range of antenna.
Accompanying drawing explanation
Fig. 1 is one antenna structure view of the present invention；
Fig. 2 a is the schematic diagram of complementary opening resonance loop structure；
Fig. 2 b show the schematic diagram of complementary helix structure；
Fig. 2 c show the schematic diagram of opening helical ring structure；
Fig. 2 d show the schematic diagram of dual openings helical ring structure；
Fig. 2 e show the schematic diagram of complementary folding line structure；
Fig. 3 a is the derivative signal of its geometry of complementary opening resonance loop structure shown in Fig. 2 a
Figure；
Fig. 3 b is the derivative schematic diagram of its extension of the complementary opening resonance loop structure shown in Fig. 2 a；
Fig. 4 a be the complementary opening resonance loop structure shown in three Fig. 2 a compound after structure
Schematic diagram；
Fig. 4 b is that the complementary opening resonance loop structure shown in two Fig. 2 a show with Fig. 5 b
The compound schematic diagram of complementary helix structure；
Fig. 5 is that the structure after the complementary opening resonance loop structure group battle array shown in four Fig. 2 a is shown
It is intended to.
Detailed description of the invention
The hand-held CMMB terminal that the embodiment of the present invention provides, including for receiving sound, video letter
Number, output corresponding sound and the broadcast unit of picture；For the CMMB signal received is carried out
Process, by the corresponding sound obtained, the processing unit of video signal output to described broadcast unit；
And at least one is used for receiving CMMB signal, and it is sent to the CMMB signal of reception process
The antenna of unit.First below technology involved in the present invention is briefly introduced.
Meta Materials is by having the man-made microstructure of certain pattern form according to the ad hoc fashion cycle
It is arranged on base material and constitutes.Pattern form and arrangement mode that man-made microstructure is different make to surpass
Material has different dielectric constants and different pcrmeabilities so that Meta Materials has difference
Electromagnetic response.Wherein, when this man-made microstructure is in resonance band, this man-made microstructure
To show the dispersion characteristics of height, the dispersion characteristics of so-called height refer to this man-made microstructure
Impedance, hold perceptual, equivalent dielectric constant and pcrmeability and violent change can occur along with frequency
Change.
The present invention utilizes the above-mentioned principle of Meta Materials, and a kind of antenna of design, it utilizes artificial
Micro groove structure is formed on the first sheet metal by the highly dispersed characteristic of micro structure, and this is first years old
The feeder line coupling of sheet metal and radio-frequency antenna makes antenna have abundant radiation characteristic
Thus the design eliminating impedance matching network realizes the miniaturization of antenna；It addition, in sky
Line structure also introduces second sheet metal relative with the first sheet metal, this second sheet metal
Electrically connect with feeder line and produce capacitive coupling with the first sheet metal and make the swept area of feeder line
Increased by the second sheet metal, decreased the loss of feeder line；Simultaneously because the first gold medal
Belong to and there is medium in the middle of sheet and the second sheet metal, cause according to the difference of dielectric material electromagnetic property
Capacitance between two metal sheets changes so that the operating frequency of antenna also produces change.
As it is shown in figure 1, Fig. 1 is the structural representation of inventive antenna.In Fig. 1, antenna bag
Include feeder line the 10, first sheet metal the 20, second sheet metal 30, be filled in the first sheet metal 20
And the medium 1 between the second sheet metal 30；Feeder line 10 and this first sheet metal 20 are by electricity
Holding coupled modes feed-in the first sheet metal 20, the second sheet metal 30 electrically connects with feeder line 10；
It is formed with micro groove structure 201 on first sheet metal 20.First sheet metal 20 and at the first gold medal
Belonging to the micro groove structure 201 formed on sheet 20 makes the first sheet metal 20 constitute equivalence Jie
Electric constant is according to the electromagnetic material of Lorentz lorentz's material resonances model dispersion thus realizes changing antenna
The purpose of radiation characteristic.
The micro groove structure 201 of the present invention can be the complementary split ring resonator knot shown in Fig. 2 a
Opening helical ring structure shown in complementary helix structure shown in structure, Fig. 2 b, Fig. 2 c,
In complementary folding line structure shown in dual openings helical ring structure shown in Fig. 2 d, Fig. 2 e
The micro groove structure that obtains of a kind of or derivative by the most several structures, compound or group battle array.
Derivative being divided into two kinds, one is that geometry derives, and another kind is that extension is derivative, herein several
What shape is derivative refers to that function is similar, variform structure is derivative, such as by square frame class formation
Derive to class of a curve structure, triangle class formation and other different polygon class formation；Herein
Extension derivative on the basis of Fig. 2 a to Fig. 2 e, i.e. offer new groove to form new microflute
Structure；As a example by the complementary opening resonance loop structure shown in Fig. 2 a, Fig. 3 a is its geometry
Shape derives schematic diagram, and Fig. 3 b is that its geometry derives schematic diagram.Herein compound refers to,
The multiple superposition of micro groove structure of Fig. 2 a to Fig. 2 e forms a new micro groove structure, such as Fig. 4 a
Shown in, it is the structural representation after the complementary opening resonance loop structure shown in three Fig. 2 a is combined
Figure；As shown in Figure 2 b, it is the complementary opening resonance loop structure shown in two Fig. 2 a and figure
2b show the structural representation after complementary helix structure is combined jointly.Group battle array herein
Refer to be formed in same metal on-chip array by the micro groove structure shown in multiple Fig. 2 a to Fig. 2 e
One overall micro groove structure, as it is shown in figure 5, open for multiple as shown in Figure 2 a complementary
Structural representation after mouth resonant ring structure group battle array.The most all with the opening spiral shown in Fig. 2 c
The present invention is illustrated as a example by ring structure.
The manufacturing process forming micro groove structure 201 on the first sheet metal 20 has multiple, such as
Etching, bore quarters, photoetching, electronics are carved, ion quarter etc., wherein etching is preferably manufacturing process,
Its step is after designing the topological pattern of suitable micro groove structure, by etching machines, profit
Get rid of with the chemical reaction of solvent Yu metal and on the first sheet metal, preset micro groove structure pattern
Metal part, this first sheet metal i.e. defines described Meta Materials.Above-mentioned first sheet metal
Material can be any metal such as copper, silver.
Please continue to refer to Fig. 1.Although being formed on the first sheet metal 20 and this first sheet metal 20
The setting of micro groove structure 201 solved that impedance matching of the prior art is complicated, impedance is damaged
The problems such as consumption is big, antenna size is limited, but when antenna needs to be operated in low frequency, low-frequency range
Wavelength corresponding to electromagnetic wave longer, according to antenna design principles, the electric radiation of feeder is long
Degree will increase.But the setting of the first sheet metal 20 can not effectively solve this problem,
Conventional solution is to arrange to increase around the first sheet metal 20 multi-turn by feeder 10
The couple feed of the big feeder line 10 micro groove structure 201 to being formed on the first sheet metal 20, but
Being that this type of arranges and necessarily makes feed line length long, feeder loss increases so that antenna performance
Decline.
In Fig. 1, have additional the second sheet metal in the medium one side relative with the first sheet metal 20
30.Feeder line 10 electrically connects with the second sheet metal 30.The mode of electrical connection is by medium
Upper formation plated-through hole 40, the most also can be by other conventional electric connection mode by feeder line 10
Electrically connect with the second sheet metal 30.
Second sheet metal 30 and the first sheet metal 20 capacitive coupling, on the first sheet metal 20
Micro groove structure 201 couple feed formed.Second sheet metal 30 is on the first sheet metal 20
Micro groove structure 201 couple feed formed is effectively reduced feeder line 10 to the first sheet metal 20
The demand of micro groove structure 201 couple feed of upper formation.Therefore without increasing feeder line 10 length,
And second the regulation of sheet metal 30 area simple, only need to adjust second for different working frequency range
Sheet metal 30 area.And owing to the first sheet metal 20 is deposited in the middle of the second sheet metal 30
At medium, the capacitance between two metal sheets will be caused according to the difference of dielectric material electromagnetic property
Change so that the operating frequency of antenna changes the most therewith.
The hand-held CMMB terminal that the embodiment of the present invention provides, additionally provides a kind of mimo antenna,
Described mimo antenna is made up of multiple above-mentioned antennas.MIMO herein i.e. refers to multi input
Multi output.I.e. all single antenna in mimo antenna is launched simultaneously, receives simultaneously.MIMO
Antenna can increase considerably on the premise of need not increase bandwidth or total transmit power loss
The information throughput of system and transmission range.Additionally the mimo antenna of the present invention also has the highest
Isolation, the capacity of resisting disturbance between multiple antennas is strong.
Above in conjunction with accompanying drawing, embodiments of the invention are described, but the present invention not office
Being limited to above-mentioned detailed description of the invention, above-mentioned detailed description of the invention is only schematically, and
Restrictive, those of ordinary skill in the art under the enlightenment of the present invention, without departing from
In the case of present inventive concept and scope of the claimed protection, it may also be made that a lot of form, this
Within belonging to the protection of the present invention a bit.
Claims (6)
1. a hand-held CMMB terminal, including for receiving sound, video signal, exports phase
Answer the broadcast unit of sound and picture；It is characterized in that, also include: for the CMMB received
Signal processes, by the corresponding sound obtained, the place of video signal output to described broadcast unit
Reason unit；And at least one is used for receiving CMMB signal, and the CMMB signal received is passed
Delivering to the antenna of processing unit, this antenna includes feeder line, the first sheet metal and this first metal
The second sheet metal that sheet is oppositely arranged, it is filled between this first sheet metal and this second sheet metal
Medium；This feeder line passes through this first sheet metal of capacitive coupling feed-in, this second sheet metal
Electrically connecting with this feeder line, this medium is formed with plated-through hole, should by this plated-through hole
Feeder line and this second sheet metal electrically connect；It is formed with micro groove structure on this first sheet metal.
2. terminal as claimed in claim 1, it is characterised in that: this micro groove structure includes mutually
Benefit formula opening resonance loop structure, complementary helix structure, opening helical ring structure, dual openings
Helical ring structure or complementary folding line structure.
3. terminal as claimed in claim 1, it is characterised in that: this micro groove structure includes mutually
Benefit formula opening resonance loop structure, complementary helix structure, opening helical ring structure, dual openings
Several structures in helical ring structure and complementary folding line structure are derivative, compound or organize battle array
The micro groove structure obtained.
4. terminal as claimed in claim 1, it is characterised in that: this micro groove structure is by wet
The mode of method etching is formed on this first sheet metal.
5. terminal as claimed in claim 1, it is characterised in that: this micro groove structure is by dry
The mode of method etching is formed on this first sheet metal.
6. terminal as claimed in claim 1, it is characterised in that: this medium by ceramic material,
Macromolecular material, ferroelectric material or ferrite material are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110181086.9A CN102802066B (en) | 2011-06-30 | 2011-06-30 | A kind of hand-held CMMB terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110181086.9A CN102802066B (en) | 2011-06-30 | 2011-06-30 | A kind of hand-held CMMB terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102802066A CN102802066A (en) | 2012-11-28 |
| CN102802066B true CN102802066B (en) | 2016-09-28 |
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ID=47201017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110181086.9A Active CN102802066B (en) | 2011-06-30 | 2011-06-30 | A kind of hand-held CMMB terminal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018215765A1 (en) * | 2017-05-23 | 2018-11-29 | Sargard Limited | Radiation shield |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11140353B2 (en) * | 2018-05-22 | 2021-10-05 | Amazon Technologies, Inc. | Media device with on-board patch antenna with dual antenna feeds |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201274578Y (en) * | 2008-09-09 | 2009-07-15 | 宇龙计算机通信科技(深圳)有限公司 | Mobile communication terminal |
| CN101740862A (en) * | 2008-11-20 | 2010-06-16 | 东莞市启汉电子科技有限公司 | Dipole antenna of RF chip |
| CN202127463U (en) * | 2011-06-30 | 2012-01-25 | 深圳光启高等理工研究院 | Handheld CMMB (China Mobile Multimedia Broadcasting) terminal |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976760A (en) * | 2010-09-07 | 2011-02-16 | 江苏大学 | Resonance loop left-handed medium patch antenna |
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2011
- 2011-06-30 CN CN201110181086.9A patent/CN102802066B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201274578Y (en) * | 2008-09-09 | 2009-07-15 | 宇龙计算机通信科技(深圳)有限公司 | Mobile communication terminal |
| CN101740862A (en) * | 2008-11-20 | 2010-06-16 | 东莞市启汉电子科技有限公司 | Dipole antenna of RF chip |
| CN202127463U (en) * | 2011-06-30 | 2012-01-25 | 深圳光启高等理工研究院 | Handheld CMMB (China Mobile Multimedia Broadcasting) terminal |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018215765A1 (en) * | 2017-05-23 | 2018-11-29 | Sargard Limited | Radiation shield |
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| Publication number | Publication date |
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| CN102802066A (en) | 2012-11-28 |
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Effective date of registration: 20201111 Address after: 226600 no.428, Zhennan Road, Haian City, Nantong City, Jiangsu Province Patentee after: Haian IC Technology Innovation Center Address before: 518000, No. 9 software building, central high tech Zone, Nanshan District hi tech Zone, Guangdong, Shenzhen Patentee before: KUANG-CHI INSTITUTE OF ADVANCED TECHNOLOGY Patentee before: KUANG-CHI INNOVATIVE TECHNOLOGY Ltd. |