CN202150898U - Vehicle-mounted CMMB terminal - Google Patents
Vehicle-mounted CMMB terminal Download PDFInfo
- Publication number
- CN202150898U CN202150898U CN201120227432U CN201120227432U CN202150898U CN 202150898 U CN202150898 U CN 202150898U CN 201120227432 U CN201120227432 U CN 201120227432U CN 201120227432 U CN201120227432 U CN 201120227432U CN 202150898 U CN202150898 U CN 202150898U
- Authority
- CN
- China
- Prior art keywords
- sheet metal
- feeder line
- terminal according
- antenna
- complementary
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Details Of Aerials (AREA)
Abstract
The utility model relates to a vehicle-mounted CMMB (China Mobile Multimedia Broadcasting) terminal comprising: a receiving unit used for demodulating a digital television radio-frequency signal and outputting an AV (Audio/Video) data flow; a processing unit used for decoding the AV data flow output by the receiving unit and outputting a corresponding AV signal; and at least one antenna connected with the receiving unit, wherein the antenna comprises a medium substrate, a first sheet metal and a second sheet metal which are attached on two opposite surfaces of the medium substrate, a first feed line is arranged to surround the first sheet metal, a second feed line is arranged to surround the second sheet metal, the first feed line and the second feed line are respectively fed in the first sheet metal and the second sheet metal through a coupling mode, the first sheet metal and the second sheet metal are respectively hollowed out to form a first microgroove structure and a second microgroove structure, and the first feed line and the second feed line are electrically connected. Therefore, beauty of the vehicle-mounted CMMB terminal can be enhanced, and user experience also can be raised.
Description
Technical field
The utility model belongs to multimedia technology field, particularly, relates to a kind of vehicle-mounted CMMB terminal.
Background technology
CMMB (China Mobile Multimedia Broadcasting; China Mobile multimedia broadcasting) system is to utilize high-power S-band satellite-signal to cover the whole nation; Utilize ground supplement translator to cover the satellite-signal blind area with mending point with content repeater satellite signal simultaneously frequently; Utilize mobile radio networks to make up return path, thus the mobile media broadcasting network that composition One-to-All Broadcast and two-way interactive combine.The ground launching centre is sent out signal behind the S-band synchronous satellite; Synchronous satellite is transmitted to the received signal; S-band signal after the forwarding is directly received by the receiving terminal on ground, also can handle the back through supplement translator and received by the receiving terminal on ground.This satellite also sends to supplement translator through distribution channels with signal and handles, and handles the back through supplement translator and transmits, and the shadow region that satellite covers is augmented.
In the prior art, CMMB also has application very widely at the back dress and the preceding assembling system of automobile.Vehicle-mounted CMMB device mainly comprises: receiving element links to each other the DTV radiofrequency signal that the demodulation car antenna obtains, the sound, the video data stream that comprise in the output DTV radiofrequency signal with external car antenna; Processing unit is decoded to sound, video data stream that receiving element is exported, and exports corresponding sound, vision signal; Broadcast unit receives sound, vision signal that processing unit is exported, output respective digital sound of television and picture.
The inventor finds that in to prior art research and practice process existing vehicle-mounted CMMB device antenna mainly adopts the telescopic antenna of external, reduces aesthetics, and trouble is installed, and influences user experience.
The utility model content
The technical problem that the utility model will solve is being, a kind of vehicle-mounted CMMB is provided the terminal, can antenna be built in the CMMB terminal, thereby strengthen aesthetics, improves user experience.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of vehicle-mounted CMMB terminal comprises being used for demodulation DTV radiofrequency signal the receiving element of output sound, video data stream; Sound, video data stream to receiving element output are decoded, and export corresponding sound, Video signal processing unit; Also comprise the antenna that at least one is connected with said receiving element; This antenna comprise medium substrate, attached to medium substrate relative two the surface first sheet metal and second sheet metal; Be provided with first feeder line around first sheet metal; Be provided with second feeder line around second sheet metal; Said first feeder line and second feeder line be through coupled modes respectively said first sheet metal of feed-in and second sheet metal, on said first sheet metal and second sheet metal respectively hollow out first micro groove structure and second micro groove structure are arranged, said first feeder line is electrically connected with second feeder line.
The utility model technical scheme is built-in with antenna, thereby strengthens aesthetics, improves user experience.In addition; Implement the antenna of the utility model; With respect to existing antenna, has following beneficial effect: be provided with sheet metal on the medium substrate two sides, made full use of the spatial area of antenna; Can under low operating frequency, work at antenna under this environment, satisfy the requirement of antenna miniaturization, low operating frequency, broadband multimode.
Description of drawings
Fig. 1 is the stereogram of the antenna of the utility model;
Fig. 2 is another visual angle figure of Fig. 1;
Fig. 3 a is the sketch map of complementary split ring resonator structure;
Fig. 3 b is depicted as the sketch map of complementary helix structure;
Fig. 3 c is depicted as the sketch map of opening helical ring structure;
Fig. 3 d is depicted as the sketch map of two opening helical ring structures;
Fig. 3 e is depicted as the sketch map of complementary folding line structure;
Fig. 4 a is the sketch map of deriving of complementary its geometry of split ring resonator structure shown in Fig. 3 a;
Fig. 4 b is the sketch map of deriving of complementary its expansion of split ring resonator structure shown in Fig. 3 a;
Fig. 5 a is the structural representation behind the complementary split ring resonator structure shown in three Fig. 3 a compound;
Fig. 5 b is the compound sketch map that the complementary split ring resonator structure shown in two Fig. 3 a and Fig. 3 b are depicted as complementary helix structure;
Fig. 6 is the structural representation after the complementary split ring resonator structural group battle array shown in four Fig. 3 a.
Embodiment
A kind of vehicle-mounted CMMB terminal that the utility model embodiment provides comprises being used for demodulation DTV radiofrequency signal, the receiving element of output sound, video data stream; Sound, video data stream to receiving element output are decoded, and export corresponding sound, Video signal processing unit; And at least one antenna that is connected with receiving element.The vehicle-mounted CMMB terminal that the utility model embodiment provides through built-in or external broadcast unit, receives sound, the vision signal of processing unit output, output respective digital sound of television and picture.
The antenna that the utility model embodiment provides such as Fig. 1 and shown in Figure 2; The said antenna of the utility model comprises medium substrate 1, attached to first sheet metal 4 and second sheet metal 7 on relative two surfaces of medium substrate 1; Be provided with first feeder line 2 around first sheet metal 4; Be provided with second feeder line 8 around second sheet metal 7, said first feeder line 2 is through said first sheet metal 4 of coupled modes feed-in, and said second feeder line 8 is through said second sheet metal 7 of coupled modes feed-in; On said first sheet metal 4 and second sheet metal 7 respectively hollow out first micro groove structure 41 and second micro groove structure 71 are arranged; The part of first sheet metal 4 except that first micro groove structure 41 is that the part of first metal routing, 42, the second sheet metals 7 except that second micro groove structure 71 is first metal routing 72, and said first feeder line 2 is electrically connected with second feeder line 8.Two sides at same medium substrate all is provided with sheet metal, and being equivalent to has increased antenna physical length (the physical length size does not increase), so just can in minimum space, design the radio-frequency antenna that is operated under the very low operation frequency.Solve the physics limitation of traditional antenna antenna controlled space area when low frequency operation.
Shown in Fig. 1 and 2, said first feeder line 2 is electrically connected through the plated-through hole of on medium substrate 1, opening 10 with second feeder line 8.Can certainly adopt lead to connect.
Among Fig. 1 to Fig. 2, the part of the first sheet metal cross-hatching is first metal routing, the blank parts on first sheet metal (part of hollow out) expression first micro groove structure and second micro groove structure.In addition, first feeder line is also represented with hatching.Same, the part of the second sheet metal cross-hatching is second metal routing, the blank parts on second sheet metal (part of hollow out) expression the 3rd micro groove structure and the 4th micro groove structure.In addition, second feeder line is also represented with hatching.
Shown in Figure 1 is the stereogram of the antenna of the utility model, and Fig. 2 is its another visual angle figure.Comprehensive two figure can find out that the structure of adhering on a surface of medium substrate and the b surface is identical.Promptly first feeder line, first sheet metal overlap with second feeder line, second sheet metal respectively in the projection on b surface.Certainly, this is a preferred scheme, and a surface as required also can be different with the surperficial structure of b.
In the utility model, said medium substrate two apparent surfaces' first sheet metal can be connected with second sheet metal, also can not connect.Under first sheet metal and the unconnected situation of second sheet metal, between said first sheet metal and second sheet metal through capacitively coupled mode feed; In such cases, can realize the resonance of first sheet metal and second sheet metal through the thickness that changes medium substrate.Under the situation that first sheet metal and second sheet metal are electrically connected (for example the form through lead or plated-through hole is connected), between said first sheet metal and second sheet metal through inductive coupled mode feed.
Said first micro groove structure 41 in the utility model, second micro groove structure 71 can be the complementary helix structures shown in the complementary split ring resonator 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 through several kinds of structures in front derive, compound or a micro groove structure that the group battle array obtains.Derive and be divided into two kinds; A kind of is that geometry is derived; Another kind is that expansion is derived, and the geometry is here derived and is meant that function class derives like, variform structure, is for example derived to class of a curve structure, triangle class formation and other different polygon class formation by the square frame class formation; The expansion is here derived and promptly on the basis of Fig. 3 a to Fig. 3 e, is offered new groove to form new micro groove structure; Complementary split ring resonator structure with shown in Fig. 3 a is an example, and Fig. 4 a is its geometry sketch map of deriving, and Fig. 4 b is its geometry sketch map of deriving.Compound being meant here, a plurality of stacks of the micro groove structure of Fig. 3 a to Fig. 3 e form a new micro groove structure, shown in Fig. 5 a, are the structural representation of the complementary split ring resonator structure shown in three Fig. 3 a after compound; Shown in Fig. 5 b, be that the complementary split ring resonator structure shown in two Fig. 3 a and Fig. 3 b are depicted as the common structural representation after compound of complementary helix structure.The group battle array here is meant the micro groove structure that is formed an integral body by the micro groove structure array on same sheet metal shown in a plurality of Fig. 3 a to Fig. 3 e, and is as shown in Figure 6, is the structural representation after a plurality of complementary split ring resonator structural group battle arrays shown in Fig. 3 a.Below be that example is set forth the utility model all with the opening helical ring structure shown in Fig. 3 c.
In addition, in the utility model, medium substrate can be processed by ceramic material, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material.Preferably, being processed by macromolecular material, can be macromolecular materials such as FR-4, F4B particularly.
In the utility model, first sheet metal and second sheet metal are copper sheet or silver strip.Be preferably copper sheet, cheap, conduct electricity very well.
In the utility model, first feeder line, second feeder line are selected for use with first sheet metal and the same material of second sheet metal and are processed.Be preferably copper.
In the utility model,,, can adopt various manufactures as long as satisfy the design principle of the utility model about the processing and manufacturing of antenna.Prevailing method is to use the manufacturing approach of all kinds of printed circuit board (PCB)s (PCB), certainly, metallized through hole, the PCB of double-sided copper-clad makes the processing request that also can satisfy the utility model.Remove this processing mode; Can also introduce other manufacturing process according to the needs of reality; (RFID is the abbreviation of Radio FrequencyIdentification such as RFID; Be REID, be commonly called as electronic tag) but in the processing mode that makes up of processing mode and iron plate and the PCB of flexible PCB processing, iron plate antenna of employed conductive silver paste printing ink processing mode, all kinds of deformation devices.Wherein, iron plate and PCB combination processing mode is meant that the accurate processing that utilizes PCB accomplishes the processing of antenna micro groove structure, accomplishes other slave part with iron plate.In addition, can also process through etching, plating, brill quarter, photoetching, electronics is carved or ion is carved method.
The vehicle-mounted CMMB terminal that the utility model embodiment provides also provides a kind of antenna of being made up of a plurality of above-mentioned antennas, and all the single antennas on this antenna receive simultaneously simultaneously and send.This antenna can increase considerably the information throughput of system under the prerequisite that need not increase bandwidth, and has very high isolation, and the antijamming capability between a plurality of antennas is strong.First feeder line of each antenna and second feeder line are connected with receiving element after being electrically connected again.
Combine accompanying drawing that the embodiment of the utility model is described above; But the utility model is not limited to above-mentioned embodiment, and above-mentioned embodiment only is schematically, rather than restrictive; Those of ordinary skill in the art is under the enlightenment of the utility model; Not breaking away under the scope situation that the utility model aim and claim protect, also can make a lot of forms, these all belong within the protection of the utility model.
Claims (10)
1. a vehicle-mounted CMMB terminal comprises being used for demodulation DTV radiofrequency signal, the receiving element of output sound, video data stream; Sound, video data stream to receiving element output are decoded, and export corresponding sound, Video signal processing unit; It is characterized in that; Also comprise the antenna that at least one is connected with said receiving element; This antenna comprise medium substrate, attached to medium substrate relative two the surface first sheet metal and second sheet metal; Be provided with first feeder line around first sheet metal, be provided with second feeder line around second sheet metal, said first feeder line and second feeder line are through coupled modes difference said first sheet metal of feed-in and second sheet metal; On said first sheet metal and second sheet metal respectively hollow out first micro groove structure and second micro groove structure are arranged, said first feeder line is electrically connected with second feeder line.
2. terminal according to claim 1 is characterized in that, said terminal also comprises: broadcast unit is used to receive sound, the vision signal that processing unit is exported, output respective digital sound of television and picture.
3. terminal according to claim 1 is characterized in that said medium substrate is processed by ceramic material, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material.
4. terminal according to claim 1; It is characterized in that said first micro groove structure is a kind of in complementary split ring resonator structure, complementary helix structure, opening helical ring structure, two opening helical ring structure and the complementary folding line structure or through several kinds of structures in front are derived, compound, combination or group battle array obtain a structure.
5. terminal according to claim 1; It is characterized in that, said second micro groove structure be a kind of in complementary split ring resonator structure, complementary helix structure, opening helical ring structure, two opening helical ring structure and the complementary folding line structure or through several kinds of structures in front derive, compound or a micro groove structure that the group battle array obtains.
6. terminal according to claim 1 is characterized in that, said first sheet metal is connected through plated-through hole or lead with second sheet metal.
7. terminal according to claim 1 is characterized in that, said first feeder line is connected through plated-through hole or lead with second feeder line.
8. terminal according to claim 1 is characterized in that, said first sheet metal is copper sheet or silver strip.
9. terminal according to claim 1 is characterized in that, said second sheet metal is copper sheet or silver strip.
10. terminal according to claim 1 is characterized in that, first feeder line, second feeder line are selected for use with first sheet metal and the same material of second sheet metal and processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120227432U CN202150898U (en) | 2011-06-30 | 2011-06-30 | Vehicle-mounted CMMB terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120227432U CN202150898U (en) | 2011-06-30 | 2011-06-30 | Vehicle-mounted CMMB terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202150898U true CN202150898U (en) | 2012-02-22 |
Family
ID=45591947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120227432U Expired - Lifetime CN202150898U (en) | 2011-06-30 | 2011-06-30 | Vehicle-mounted CMMB terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202150898U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623796A (en) * | 2012-04-12 | 2012-08-01 | 上海华勤通讯技术有限公司 | China mobile multimedia broadcasting (CMMB) antenna and mobile phone |
| CN102802064A (en) * | 2011-06-30 | 2012-11-28 | 深圳光启高等理工研究院 | Vehicle-mounted CMMB (China Mobile Multimedia Broadcasting) terminal |
-
2011
- 2011-06-30 CN CN201120227432U patent/CN202150898U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102802064A (en) * | 2011-06-30 | 2012-11-28 | 深圳光启高等理工研究院 | Vehicle-mounted CMMB (China Mobile Multimedia Broadcasting) terminal |
| CN102802064B (en) * | 2011-06-30 | 2015-10-14 | 深圳光启高等理工研究院 | A kind of vehicle-mounted CMMB terminal |
| CN102623796A (en) * | 2012-04-12 | 2012-08-01 | 上海华勤通讯技术有限公司 | China mobile multimedia broadcasting (CMMB) antenna and mobile phone |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202135232U (en) | Vehicle-mounted CMMB terminal | |
| CN202150898U (en) | Vehicle-mounted CMMB terminal | |
| CN102802064B (en) | A kind of vehicle-mounted CMMB terminal | |
| CN202275934U (en) | Dual polarized antenna and multiple input multiple output (MIMO) antenna possessing the dual polarized antenna | |
| CN202094285U (en) | Wireless local area network system | |
| CN102800948B (en) | Antenna and wireless communication apparatus | |
| CN202121701U (en) | Handheld CMMB terminal | |
| CN202127464U (en) | Handheld CMMB (China Mobile Multimedia Broadcasting) terminal | |
| CN202168148U (en) | Handheld China mobile multimedia broadcasting (CMMB) terminal | |
| CN102802067B (en) | A kind of hand-held CMMB terminal | |
| CN102800941B (en) | Antenna and MIMO (multiple input multiple output) antenna with same | |
| CN102801933A (en) | Vehicular China mobile multimedia broadcasting (CMMB) terminal | |
| CN202160229U (en) | Vehicle-loaded CMMB terminal | |
| CN102800943A (en) | Dual-polarized antenna and MIMO (multiple input multiple output) antenna with same | |
| CN202094286U (en) | Wireless local area network system | |
| CN202127092U (en) | Antenna and MIMO (multiple-input multiple-output) antenna with same | |
| CN202160228U (en) | Vehicle-mounted China mobile multimedia broadcasting (CMMB) terminal | |
| CN202168149U (en) | Hand-held CMMB terminal | |
| CN102811324B (en) | A kind of hand-held CMMB terminal | |
| CN202160230U (en) | Vehicle-mounted CMMB terminal | |
| CN102802065B (en) | A kind of vehicle-mounted CMMB terminal | |
| CN102802281A (en) | Wireless Internet access card | |
| CN202150548U (en) | Dual polarized antenna and MIMO antenna possessing the dual polarized antenna | |
| CN102801934A (en) | Vehicle-mounted China mobile multimedia broadcasting (CMMB) terminal | |
| CN202275932U (en) | Dual polarized antenna and MIMO antenna with the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 518057 2, building 9, hi tech middle 1, Nanshan District high tech Zone, Shenzhen, Guangdong. Co-patentee after: Shenzhen Kuang-Chi Innovation Technology Co., Ltd. Patentee after: Shenzhen Kuang-Chi Institute of Advanced Technology Address before: 518000 software building 9, hi tech middle 1, central high tech Zone, Shenzhen, Guangdong, China. Co-patentee before: Shenzhen Kuang-Chi Innovation Technology Co., Ltd. Patentee before: Shenzhen Kuang-Chi Institute of Advanced Technology |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120222 |