CN102802067B - A kind of hand-held CMMB terminal - Google Patents
A kind of hand-held CMMB terminal Download PDFInfo
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- CN102802067B CN102802067B CN201110181091.XA CN201110181091A CN102802067B CN 102802067 B CN102802067 B CN 102802067B CN 201110181091 A CN201110181091 A CN 201110181091A CN 102802067 B CN102802067 B CN 102802067B
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- sheet metal
- feeder line
- antenna
- groove structure
- micro groove
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- 239000002184 metal Substances 0.000 claims abstract description 87
- 229910052751 metal Inorganic materials 0.000 claims abstract description 87
- 239000000758 substrate Substances 0.000 claims abstract description 17
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- 239000000463 material Substances 0.000 claims description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 6
- 229910052709 silver Inorganic materials 0.000 claims description 5
- 239000004332 silver Substances 0.000 claims description 5
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 239000003302 ferromagnetic material Substances 0.000 claims description 3
- 229910000859 α-Fe Inorganic materials 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000013589 supplement Substances 0.000 description 4
- 230000001939 inductive effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000012447 hatching Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000002452 interceptive effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000001259 photo etching Methods 0.000 description 1
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Abstract
The present invention relates to a kind of hand-held CMMB terminal, comprising for receiving sound, vision signal, export the broadcast unit of corresponding sound and picture, for processing the CMMB signal received, the corresponding sound obtained, vision signal are exported to the processing unit of described broadcast unit, and at least one is for receiving CMMB signal, and the CMMB signal of reception is sent to the antenna of processing unit, this antenna comprises medium substrate, be attached to the first sheet metal and second sheet metal on relative two surfaces of medium substrate, first sheet metal is provided with the first feeder line, second sheet metal is provided with the second feeder line, described first feeder line and the second feeder line are by coupled modes the first sheet metal and the second sheet metal described in feed-in respectively, on described first sheet metal and the second sheet metal, hollow out has the first micro groove structure and the second micro groove structure respectively, described first feeder line is electrically connected with the second feeder line.The requirement of handheld terminal antenna low frequency work can be met.
Description
Technical field
The invention belongs to Technology of Mobile Multimedia field, particularly, relate to a kind of hand-held CMMB terminal.
Background technology
CMMB (China Mobile Multimedia Broadcasting, China Mobile multimedia broadcasting) system be utilize high-power S-band satellite-signal cover the whole nation, utilize ground supplement translator with frequently mending Vertex cover satellite-signal blind area with content repeater satellite signal simultaneously, mobile radio networks is utilized to build return path, thus the mobile media broadcasting network that composition One-to-All Broadcast and two-way interactive combine.After signal is sent to S-band synchronous satellite by ground launch center, synchronous satellite forwards to the received signal, S-band signal after forwarding is directly received by the receiving terminal on ground, also can by being received by the receiving terminal on ground after supplement translator process.Signal is also sent to supplement translator process by distribution channels by this satellite, by forwarding after supplement translator process, augments the shadow region that satellite covers.
In prior art, CMMB system adopts the digital technologies such as coding, compression, modulation, for less than 7 cun small-size screen portable reception terminals provide broadcast TV program service, mainly contain two large Terminal Types, 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, as hand held television products such as PDA, MP3, MP4, digital camera, notebook computers.As long as various the small screen portable terminal device adds load onto a special chip, a removable hand held television of watching will be become.But handheld device antenna is controlled by the physical constraints of spatial area when low frequency operation, and handheld device volume is less, is difficult to the requirement meeting the work of antenna low frequency.
Summary of the invention
The technical problem that the present invention will solve provides a kind of hand-held CMMB terminal, when handheld terminal volume is little, can meet the requirement of antenna low frequency work.
The present invention solves the problems of the technologies described above adopted technical scheme: provide a kind of hand-held CMMB terminal, comprises for receiving sound, vision signal, exports the broadcast unit of corresponding sound and picture, for processing the CMMB signal received, the corresponding sound obtained, vision signal are exported to the processing unit of described broadcast unit, and at least one is for receiving CMMB signal, and the CMMB signal of reception is sent to the antenna of processing unit, this antenna comprises medium substrate, be attached to the first sheet metal and second sheet metal on relative two surfaces of medium substrate, first sheet metal is provided with the first feeder line, second sheet metal is provided with the second feeder line, described first feeder line and the second feeder line are by coupled modes the first sheet metal and the second sheet metal described in feed-in respectively, on described first sheet metal and the second sheet metal, hollow out has the first micro groove structure and the second micro groove structure respectively, described first feeder line is electrically connected with the second feeder line.
Further, described medium substrate is made up of ceramic material, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material.
Further, described first micro groove structure be complementary opening resonance loop structure, a kind of in complementary helix structure, opening helical ring structure, two opening helical ring structure and complementary folding line structure or derived by several structure above, structure that compound, combination or group battle array obtain.
Further, described second micro groove structure be complementary opening resonance loop structure, a kind of in complementary helix structure, opening helical ring structure, two opening helical ring structure and complementary folding line structure or derived by several structure above, micro groove structure that compound or group battle array obtain.
Further, described first sheet metal is connected by plated-through hole or wire with the second sheet metal.
Further, described first feeder line is connected by plated-through hole or wire with the second feeder line.
Further, described first sheet metal is copper sheet or silver strip.
Further, described second sheet metal is copper sheet or silver strip.
Further, described first feeder line, the second feeder line select the material same with the first sheet metal and the second sheet metal to make.
Hand-held CMMB terminal of the present invention, relative to existing technology, there is following beneficial effect: the antenna that the hand-held CMMB terminal of the present invention adopts is provided with sheet metal on medium substrate two sides, take full advantage of the spatial area of antenna, antenna can work under lower operating frequency in such circumstances, meets the requirement of antenna miniaturization, low operating frequency, broadband multimode.
Accompanying drawing explanation
Fig. 1 is the stereogram of antenna of the present invention;
Fig. 2 is another visual angle figure of Fig. 1;
Fig. 3 a is the schematic diagram of complementary opening resonance loop structure;
Fig. 3 b is depicted as the schematic diagram of complementary helix structure;
Fig. 3 c is depicted as the schematic diagram of opening helical ring structure;
Fig. 3 d is depicted as the schematic diagram of two opening helical ring structure;
Fig. 3 e is depicted as the schematic diagram of complementary folding line structure;
Fig. 4 a derives schematic diagram for its geometry of complementary opening resonance loop structure shown in Fig. 3 a;
Fig. 4 b is the derivative schematic diagram of its expansion of the complementary opening resonance loop structure shown in Fig. 3 a;
Structural representation after the compound that Fig. 5 a is the complementary opening resonance loop structure shown in three Fig. 3 a;
Fig. 5 b is depicted as the compound schematic diagram of complementary helix structure for the complementary opening resonance loop structure shown in two Fig. 3 a and Fig. 3 b;
Fig. 6 is the structural representation after the complementary opening resonance loop structure group battle array shown in four Fig. 3 a.
Embodiment
The hand-held CMMB terminal that the embodiment of the present invention provides, comprises for receiving sound, vision signal, exports the broadcast unit of corresponding sound and picture; For processing the CMMB signal received, the corresponding sound obtained, vision signal are exported to the processing unit of described broadcast unit; And at least one is for receiving CMMB signal, and the CMMB signal of reception is sent to the antenna of processing unit.As shown in Figures 1 and 2, described antenna of the present invention comprises medium substrate 1, be attached to first sheet metal 4 and second sheet metal 7 on relative two surfaces of medium substrate 1, first sheet metal 4 is provided with the first feeder line 2, second sheet metal 7 is provided with the second feeder line 8, described first feeder line 2 is by the first sheet metal 4 described in coupled modes feed-in, described second feeder line 8 is by the second sheet metal 7 described in coupled modes feed-in, on described first sheet metal 4 and the second sheet metal 7, hollow out has the first micro groove structure 41 and the second micro groove structure 71 respectively, the part of the first sheet metal 4 except the first micro groove structure 41 is the first metal routing 42, the part of the second sheet metal 7 except the second micro groove structure 71 is the first metal routing 72, described first feeder line 2 is electrically connected with the second feeder line 8.On the two sides of same medium substrate, all sheet metal is set, is equivalent to and adds antenna physical length (physical length size does not increase), so just can design the radio-frequency antenna be operated under very low operation frequency in minimum space.Solve the physical constraints of traditional antenna antenna controlled space area when low frequency operation.
As shown in Fig. 1 and 2, described first feeder line 2 is electrically connected by the plated-through hole 10 opened on medium substrate 1 with the second feeder line 8.Wire can certainly be adopted to connect.
In Fig. 1 to Fig. 2, the part of the first sheet metal cross-hatching is the first metal routing, and the blank parts (part of hollow out) on the first sheet metal represents the first micro groove structure and the second micro groove structure.In addition, the first feeder line also represents with hatching.Same, the part of the second sheet metal cross-hatching is the second metal routing, and the blank parts (part of hollow out) on the second sheet metal represents the 3rd micro groove structure and the 4th micro groove structure.In addition, the second feeder line also represents with hatching.
Figure 1 shows that the stereogram of antenna of the present invention, Fig. 2 is its another visual angle figure.Comprehensive two figure can find out, the structure that a surface of medium substrate and b adhere on the surface is identical.Namely the first feeder line, the projection of the first sheet metal on b surface overlap with the second feeder line, the second sheet metal respectively.Certainly, this is a preferred scheme, and a surface as required also can be different from the structure on b surface.
First feeder line 2 arranges to realize signal coupling around the first sheet metal 4.Other first sheet metal 4 can contact with the first feeder line 2, also can not contact.When the first sheet metal 4 contacts with the first feeder line 2, inductive coupled between the first feeder line 2 and the first sheet metal 4; When the first sheet metal 4 does not contact with the first feeder line 2, capacitive coupling between the first feeder line 2 and sheet metal 4.
Second feeder line 8 arranges to realize signal coupling around the second sheet metal 7.Other second sheet metal 7 can contact with the second feeder line 8, also can not contact.When the second sheet metal 7 contacts with the second feeder line 8, inductive coupled between the second feeder line 8 and the second sheet metal 7; When the second sheet metal 7 does not contact with the second feeder line 8, capacitive coupling between the second feeder line 8 and sheet metal 7.
In the present invention, first sheet metal of described medium substrate two apparent surface can be connected with the second sheet metal, also can not connect.Under the first sheet metal and the unconnected situation of the second sheet metal, by capacitively coupled mode feed between described first sheet metal and the second sheet metal; In such cases, the thickness by changing medium substrate can realize the resonance of the first sheet metal and the second sheet metal.(be such as connected by the form of wire or plated-through hole) when the first sheet metal is electrically connected with the second sheet metal, by inductive coupled mode feed between described first sheet metal and the second sheet metal.
Described first micro groove structure 41, second micro groove structure 71 in the present invention can be the complementary helix structure shown in the complementary opening resonance loop structure shown in Fig. 3 a, Fig. 3 b, a kind of in the two opening helical ring structures shown in the opening helical ring structure shown in Fig. 3 c, Fig. 3 d, the complementary folding line structure shown in Fig. 3 e or derived by several structure above, micro groove structure that compound or group battle array obtain.Derive and be divided into two kinds, one is that geometry derives, another kind is that expansion is derivative, and geometry is herein derivative refers to that function class derives like, variform structure, such as, derive to class of a curve structure, triangle class formation and other different polygon class formation by square frame class formation; Namely expansion herein derives offers new groove to form new micro groove structure on the basis of Fig. 3 a to Fig. 3 e; For the complementary opening resonance loop structure shown in Fig. 3 a, Fig. 4 a derives schematic diagram for its geometry, and Fig. 4 b derives schematic diagram for its geometry.Compound herein refers to, the micro groove structure that micro groove structure multiple superposition formation one of Fig. 3 a to Fig. 3 e is new, as shown in Figure 5 a, is the structural representation after the complementary opening resonance loop structure compound shown in three Fig. 3 a; As shown in Figure 5 b, for the complementary opening resonance loop structure shown in two Fig. 3 a and Fig. 3 b are depicted as the structural representation after the common compound of complementary helix structure.Group battle array herein refers to and forms an overall micro groove structure by the micro groove structure array on same sheet metal shown in multiple Fig. 3 a to Fig. 3 e, as shown in Figure 6, is the structural representation after multiple complementary opening resonance loop structure group battle array as shown in Figure 3 a.All set forth the present invention for the opening helical ring structure shown in Fig. 3 c below.
In addition, in the present invention, medium substrate can be made up of ceramic material, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material.Preferably, being made up of macromolecular material, can be the macromolecular materials such as FR-4, F4B particularly.
In the present invention, the first sheet metal and the second sheet metal are copper sheet or silver strip.Be preferably copper sheet, cheap, conduct electricity very well.
In the present invention, the first feeder line, the second feeder line select the material same with the first sheet metal and the second sheet metal to make.Be preferably copper.
In the present invention, about the processing and manufacturing of antenna, as long as meet design principle of the present invention, various manufacture can be adopted.Prevailing method is the manufacture method using all kinds of printed circuit board (PCB) (PCB), and certainly, metallized through hole, the PCB of double-sided copper-clad manufactures and also can meet processing request of the present invention.Except this processing mode, other manufacturing process can also be introduced according to the actual needs, such as (RFID is the abbreviation of Radio Frequency Identification to RFID, i.e. REID, is commonly called as electronic tag) in use conductive silver paste ink processing mode, all kinds of can the processing mode that combines of the flexible PCB processing of deformable element, the processing mode of iron plate antenna and iron plate and PCB.Wherein, iron plate and PCB Combined machining mode refer to and utilize the accurate processing of PCB to complete the processing of antenna micro groove structure, complete other slave part with iron plate.In addition, the method can also carved by etching, electroplating, bore quarter, photoetching, electronics quarter or ion is processed.
The hand-held CMMB terminal that the embodiment of the present invention provides, additionally provides a kind of mimo antenna, and described mimo antenna is made up of multiple above-mentioned antenna.Namely MIMO herein refers to multiple-input and multiple-output.Namely all single antenna in mimo antenna is launched simultaneously, receives simultaneously.Mimo antenna can not need the information throughput and the transmission range that increase considerably system under the prerequisite increasing bandwidth or total transmitted power loss.Mimo antenna of the present invention also has very high isolation in addition, and the antijamming capability between multiple antenna is strong.
By reference to the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, also can make a lot of form, these all belong within protection of the present invention.
Claims (6)
1. a hand-held CMMB terminal, comprises for receiving sound, vision signal, exports the broadcast unit of corresponding sound and picture, it is characterized in that, also comprise: for processing the CMMB signal received, the corresponding sound obtained, vision signal being exported to the processing unit of described broadcast unit, and at least one is for receiving CMMB signal, and the CMMB signal of reception is sent to the antenna of processing unit, this antenna comprises medium substrate, be attached to the first sheet metal and second sheet metal on relative two surfaces of medium substrate, first sheet metal is provided with the first feeder line, second sheet metal is provided with the second feeder line, described first feeder line and the second feeder line are by coupled modes the first sheet metal and the second sheet metal described in feed-in respectively, on described first sheet metal and the second sheet metal, hollow out has the first micro groove structure and the second micro groove structure respectively, described first micro groove structure and described second micro groove structure all form complementary helix structure, described first feeder line is electrically connected, for increasing antenna length by plated-through hole or wire with the second feeder line.
2. terminal according to claim 1, is characterized in that, described medium substrate is made up of ceramic material, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material.
3. terminal according to claim 1, is characterized in that, described first sheet metal is connected by plated-through hole or wire with the second sheet metal.
4. terminal according to claim 1, is characterized in that, described first sheet metal is copper sheet or silver strip.
5. terminal according to claim 1, is characterized in that, described second sheet metal is copper sheet or silver strip.
6. terminal according to claim 1, is characterized in that, the first feeder line, the second feeder line select the material same with the first sheet metal and the second sheet metal to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110181091.XA CN102802067B (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 |
|---|---|---|---|
| CN201110181091.XA CN102802067B (en) | 2011-06-30 | 2011-06-30 | A kind of hand-held CMMB terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102802067A CN102802067A (en) | 2012-11-28 |
| CN102802067B true CN102802067B (en) | 2015-09-30 |
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| CN201110181091.XA Expired - Fee Related CN102802067B (en) | 2011-06-30 | 2011-06-30 | A kind of hand-held CMMB terminal |
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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 |
| CN202127464U (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 |
|---|---|---|---|---|
| CN101895010B (en) * | 2010-06-13 | 2012-10-24 | 南京邮电大学 | Coplanar waveguide feed wideband printed monopole antenna |
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2011
- 2011-06-30 CN CN201110181091.XA patent/CN102802067B/en not_active Expired - Fee Related
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 |
| CN202127464U (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 |
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| CN102802067A (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, Shenzhen, Guangdong, Shenzhen Patentee before: KUANG-CHI INSTITUTE OF ADVANCED TECHNOLOGY Patentee before: KUANG-CHI INNOVATIVE TECHNOLOGY Ltd. |
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