CN203300784U - CMMB parallel feedback sleeve antenna - Google Patents
CMMB parallel feedback sleeve antenna Download PDFInfo
- Publication number
- CN203300784U CN203300784U CN2013203556941U CN201320355694U CN203300784U CN 203300784 U CN203300784 U CN 203300784U CN 2013203556941 U CN2013203556941 U CN 2013203556941U CN 201320355694 U CN201320355694 U CN 201320355694U CN 203300784 U CN203300784 U CN 203300784U
- Authority
- CN
- China
- Prior art keywords
- antenna
- cmmb
- cover
- oscillator
- capsule cylinder
- 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 - Fee Related
Links
- 239000002775 capsule Substances 0.000 claims description 20
- 239000004020 conductor Substances 0.000 claims description 20
- 239000011152 fibreglass Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 7
- 230000008054 signal transmission Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Details Of Aerials (AREA)
Abstract
The utility model discloses a CMMB parallel feedback sleeve antenna, comprising an antenna housing and an antenna support conducting pipe which are sleeved from the exterior to the interior. At least two pairs of dipoles are axially arranged between the antenna housing and the antenna support conducting pipe; each pair of dipoles comprise two oppositely arranged oscillators at an interval, each oscillator is independently welded on the antenna support conducting pipe, the lower end of the antenna housing is provided with an antenna input port, a power divider is inserted in the antenna input port, the output terminal of the power divider is connected with at least two feed lines, and each feed line is connected with one oscillator of the dipoles through a feed unit. The CMMB parallel feedback sleeve antenna can work in the frequency range from 470 MHz to 800 MHz and is advantageous in that the gain is high, all directions are available, the size is small, the weight is light, and installation and transportation are convenient.
Description
Technical field
The utility model relates to field of antenna, relates in particular to a kind of CMMB and capsule cylinder antenna.
Background technology
China Mobile multimedia broadcasting (China Mobile Multimedia Broadcasting, CMMB) is the system towards multiple digital television receiving terminals such as mobile phone, PDA, MP3, MP4, digital camera, notebook computers of Chinese independent research.At present, the CMMB Digital Television is widely used as a kind of actual Digital Television wireless receiving standard in the multiple digital television receiving terminals such as mobile phone, navigation product and USB television rod.
At present, in the market situation of decimeter wave omnidirectional vertical polarized antenna, only have kind of perpendicular polarization integral antenna, its structure is a plurality of little vertical dipole antenna series connection group battle arrays,, by rheostatic output port, through feeder line, little vertical dipole antenna is coupled together.But because little vertical dipole antenna horizontal directivity pattern is not circular, but be oval, front and back gain inequality 6dB left and right.And large (320 millimeters of the antenna diameters of its volume; Antenna length 2-3 rice), weight large (antenna weight is 60 kilograms of left and right).Due to digital broadcasting to standing wave require not high by 1.2, power requirement is little, and to directional diagram, require high especially, not omnidirectional but weak orientation if the horizontal directivity pattern of antenna covers, the part that does not cover so additionally will increase mono-frequency network system continuation covering, both increased construction cost and operation cost, its reliability is not high yet.When needs small-power vertical polarized antenna, be erected on the mast of communication base station antenna, but existing integral antenna replaces, because volume is large, Heavy Weight, can not be connected with the mast of antenna for base station, can only again set up, waste time and energy, increase equipment cost.
The frequency of utilization scope of existing CMMB Digital Television is in the electromagnetic wave frequency range of 470MHz-800MHz, but existing CMMB antenna is in aspect of performance all deficiency and the defect of various degrees, for example: working frequency range is narrower, gain low, and complex structure, volume large, be not easy to install.
Because the above-mentioned problems that the CMMB antenna exists, the design people is based on being engaged in relevant manufacturing field rich experiences and excessively strong professional knowledge for many years, application in conjunction with the CMMB reception antenna is actual, positive research and innovation in addition, to provide a kind of can be high in the work of 470MHz-800MHz full frequency band, gain, little, lightweight, the installation and transportation of omnirange, volume CMMB and capsule cylinder antenna easily.
The utility model content
The technical problems to be solved in the utility model be to provide a kind of can be high in 470MHz-800MHz frequency range work, gain, little, lightweight, the installation and transportation of omnirange, volume CMMB and capsule cylinder antenna easily.
for addressing the above problem, the utility model provides a kind of CMMB and capsule cylinder antenna, comprise: the antenna cover and the antenna mounting conductor tube that are set with from outside to inside, be provided with vertically at least two electrode couple between described antenna cover and described antenna mounting conductor tube, every pair of oscillator that described dipole is relative by two and interval arranges forms, each described oscillator is welded on respectively on described antenna mounting conductor tube, lower end in described antenna cover is provided with antenna input port, be fitted with power divider in described antenna input port, the output of described power divider is connected with at least two feeder lines, every described feeder line connects a described oscillator in described dipole by feed element.
CMMB as above and capsule cylinder antenna, wherein, the length of described dipole equals 1/2nd of wavelength corresponding to operating frequency of antenna.
CMMB as above and capsule cylinder antenna, wherein, be connected with described antenna cover with lower support element by upper supporting piece respectively at the two ends up and down of described antenna mounting conductor tube.
CMMB as above and capsule cylinder antenna, wherein, outer cover is connected to the antenna top cover in the upper end of described antenna cover, in the bottom of described antenna cover, is socketed with the antenna fixed cover.
CMMB as above and capsule cylinder antenna, wherein, described antenna cover is the fiberglass outer cover.
According to such scheme, the utility model is significant with respect to the effect of existing structure:
1, the utility model is taked the parallelly feeding mode, makes under the prerequisite of the sleeve antenna of same size, and the sleeve antenna working band is wider, and standing-wave ratio is lower.
2, antenna of the present utility model, on every side without any reflection unit, has guaranteed the isotropic directivity of antenna.
3,, because the utility model adopts tube-in-tube structure, saved the stay pipe of oscillator in the prior art.Signal transmission and the feed of sleeve antenna, complete by feeder line and hard feedback.The antenna mounting conductor tube plays the supporting role to oscillator, has saved stay pipe of the prior art, has a volume little, lightweight, and installation and transportation are convenient, are convenient to the advantages such as installation.
Description of drawings
Fig. 1 is the structural representation of the utility model CMMB and capsule cylinder antenna.
Description of reference numerals:
1-antenna top cover; The 2-upper supporting piece; 3-antenna mounting conductor tube; The 4-dipole; 41,42-oscillator; The 6-feed element; The 7-antenna cover; 8-antenna fixed cover; The 9-lower support element; The 10-antenna input port; The 11-power divider; The 12-feeder line.
Embodiment
Please refer to Fig. 1, be the structural representation of the utility model CMMB and capsule cylinder antenna.As shown in Figure 1, the CMMB that the utility model proposes and capsule cylinder antenna comprise: antenna cover 7 and the antenna mounting conductor tube 3 of suit from outside to inside all have the spacing of regulation between antenna cover 7, antenna mounting conductor tube 3.Be provided with vertically two electrode couple 4 between antenna cover 7 and antenna mounting conductor tube, be used for transmitting; The oscillator 41,42 that every electrode couple 4 is relative by two and interval arranges forms, and each oscillator 41,42 is welded on respectively on antenna mounting conductor tube 3, in the lower end of antenna cover 7, is provided with antenna input port 10, is used for the signal input.Be fitted with power divider 11 in antenna input port 10, being used for signal distributes, the output of power divider 11 is connected with two feeder lines 12, the every oscillator 42 that feeder line 12 connects in dipole 4 by feed element 6, make signal through power divider 11 by two feeder lines 12 respectively to each dipole 4 feeds, signal is launched by the oscillator of antenna.Because the utility model is taked the parallelly feeding mode, make under the prerequisite of the sleeve antenna of same size, the sleeve antenna working band is wider, and standing-wave ratio is lower.The utility model, according to the form of integral antenna, adopts sleeve antenna to replace little vertical antenna series connection group battle array, uses parallel feed, and the output port by power divider, connect sleeve antenna with feeder line., because the oscillator of antenna directly is welded on antenna mounting conductor tube 3, saved the stay pipe of oscillator.Signal transmission of the present utility model and feed, complete by branch cable.The utility model uses antenna mounting conductor tube 3 to substitute two oscillator stay pipes of little vertical antenna of the prior art, and antenna oscillator does not block, so the antenna horizontal directivity pattern be circle, has guaranteed the isotropic directivity of antenna.
In the utility model, the length of dipole 4 (being the distance of the upper surface of oscillator 41 to the lower surface of oscillator 42) equals 1/2nd of wavelength X corresponding to operating frequency of antenna, thereby guarantees to work in the frequency range of antenna between 470MHz～800MHz.Because antenna oscillator is dipole, do not add reflecting plate around antenna, further guaranteed the isotropic directivity of antenna.
As the other optional embodiment of the utility model, can connect vertically on antenna mounting conductor tube 3 and be provided with three pairs, four pairs or how right dipole 4, the quantity of dipole 4 can be selected as required.The quantity of the utility model electrode couple 4 is not restricted.
As shown in Figure 1, at the two ends up and down of antenna mounting conductor tube 3, be connected with antenna cover 7 with lower support element 9 by upper supporting piece 2 respectively, make antenna mounting conductor tube 3 be fixed in antenna cover 7 inside.
As shown in Figure 1, outer cover is connected to antenna top cover 1 in the upper end of antenna cover 7, in the bottom of antenna cover 7, is socketed with antenna fixed cover 8, is used for the two ends of sealing antenna cover 7.
Further, antenna cover 7 is the fiberglass outer cover.Certainly, antenna cover 7 also can adopt other suitable well known materials.
The operation principle of the utility model CMMB and capsule cylinder antenna is that the signal of transmitter, by antenna input port,, through power divider 11,, with the input signal decile, then passes through feeder line 12 and feed element 6 to first antenna dipoles 4 feeds; The feed process of second antenna dipoles is identical with first antenna dipoles, and the adjacent opposing end spacing of two dipoles 4 equals wavelength X corresponding to operating frequency, two antenna oscillator constant powers; The same-phase feed, thus signal code in the same way, current trend is reasonable, is constant power balanced feeding in the same way.The signal of transmitter is launched by the oscillator of antenna.
The important technological parameters of the utility model CMMB and capsule cylinder antenna is:
The utility model is taked the parallelly feeding mode, makes under the prerequisite of the sleeve antenna of same size, and the sleeve antenna working band is wider, and standing-wave ratio is lower.Preliminary experiment is in the bandwidth of 30MHz left and right, and standing-wave ratio is less than 1.1, and such index, higher than slot antenna, can be used in analog-and digital-antenna system fully.And,, without any reflection unit, guaranteed the isotropic directivity of antenna around antenna.The length of dipole equals 1/2nd of wavelength X corresponding to operating frequency of antenna, thereby guarantees to work in the frequency range of antenna between 470MHz～800MHz., because the utility model adopts tube-in-tube structure, saved the stay pipe of oscillator.Signal transmission and the feed of sleeve antenna, complete by feeder line and hard feedback.Antenna mounting conductor tube 3 plays the supporting role to oscillator, has saved stay pipe, has a volume little, lightweight, and installation and transportation are convenient, are convenient to the advantages such as installation.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (5)
1. a CMMB and capsule cylinder antenna, it is characterized in that, described CMMB and capsule cylinder antenna comprise: the antenna cover and the antenna mounting conductor tube that are set with from outside to inside, be provided with vertically at least two electrode couple between described antenna cover and described antenna mounting conductor tube, every pair of oscillator that described dipole is relative by two and interval arranges forms, each described oscillator is welded on respectively on described antenna mounting conductor tube, lower end in described antenna cover is provided with antenna input port, be fitted with power divider in described antenna input port, the output of described power divider is connected with at least two feeder lines, every described feeder line connects a described oscillator in described dipole by feed element.
2. CMMB as claimed in claim 1 and capsule cylinder antenna, is characterized in that, the length of described dipole equals 1/2nd of wavelength corresponding to operating frequency of antenna.
3. CMMB as claimed in claim 1 and capsule cylinder antenna, is characterized in that, at the two ends up and down of described antenna mounting conductor tube, is connected with described antenna cover with lower support element by upper supporting piece respectively.
4. CMMB as claimed in claim 1 and capsule cylinder antenna, is characterized in that, outer cover is connected to the antenna top cover in the upper end of described antenna cover, in the bottom of described antenna cover, is socketed with the antenna fixed cover.
5. CMMB as described in any one in claim 1 to 4 and capsule cylinder antenna, is characterized in that, described antenna cover is the fiberglass outer cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203556941U CN203300784U (en) | 2013-06-20 | 2013-06-20 | CMMB parallel feedback sleeve antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203556941U CN203300784U (en) | 2013-06-20 | 2013-06-20 | CMMB parallel feedback sleeve antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203300784U true CN203300784U (en) | 2013-11-20 |
Family
ID=49576771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203556941U Expired - Fee Related CN203300784U (en) | 2013-06-20 | 2013-06-20 | CMMB parallel feedback sleeve antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203300784U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109950689A (en) * | 2019-04-24 | 2019-06-28 | 上海鸿洛通信电子有限公司 | Support the wide band high-gain omnidirectional antenna and communication equipment of dedicated network communication |
-
2013
- 2013-06-20 CN CN2013203556941U patent/CN203300784U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109950689A (en) * | 2019-04-24 | 2019-06-28 | 上海鸿洛通信电子有限公司 | Support the wide band high-gain omnidirectional antenna and communication equipment of dedicated network communication |
| CN109950689B (en) * | 2019-04-24 | 2024-04-02 | 上海鸿洛通信电子有限公司 | Broadband high-gain omnidirectional antenna supporting private network communication and communication equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102110900B (en) | Array antenna of mobile terminal and implementation method of array antenna | |
| CN203013940U (en) | Antenna distributed in dual-polarization chamber | |
| CN102110908B (en) | TD-LTE (Time Division-Long Term Evolution) indoor dual-polarized antenna | |
| CN103247868B (en) | A kind of multi-band broadband dual-polarization LTE omnidirectional antenna | |
| CN106099396B (en) | Dual polarization antenna radiation unit and dual-polarized antenna array | |
| CN104966897A (en) | T type dipole antenna | |
| CN205944411U (en) | Double polarization antenna | |
| CN103138043B (en) | Antenna modules and mobile terminal thereof | |
| CN205004441U (en) | Waveguide slot antenna and mfg method thereof | |
| CN204088577U (en) | Bipolar omni-directional ceiling antenna | |
| CN204130706U (en) | A kind of dual polarization wideband high-gain wall hanging built-in aerial | |
| CN101702466B (en) | High-gain wide-frequency band omni antenna | |
| CN202888408U (en) | CMMB (China Mobile Multimedia Broadcasting) series-feed sleeve antenna | |
| CN203300784U (en) | CMMB parallel feedback sleeve antenna | |
| CN202308290U (en) | Bipolarization ceiling omni-directional antenna | |
| CN208127406U (en) | Antenna assembly and terminal device | |
| CN203300799U (en) | CMMB coaxial omnidirectional vertically polarized antenna | |
| CN205900775U (en) | Circular polarization omnidirectional antenna | |
| CN206451810U (en) | Omnidirectional's dual polarization binary channels embellished antenna | |
| CN201893438U (en) | UHF (ultra-high frequency) circularly polarized four-couple pole plate antenna | |
| CN103326111B (en) | A kind of multi-frequency multi-polarization omnidirectional antenna | |
| CN202695732U (en) | Double-frequency ultra-wideband directional antenna | |
| CN208209000U (en) | A kind of full angle adjusting digital TV antenna | |
| CN106229638A (en) | Aerial array and antenna | |
| CN201336368Y (en) | Quadrupole plate antenna for UHF digital television set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131120 |
|
| CU01 | Correction of utility model | ||
| CU01 | Correction of utility model |
Correction item: Termination upon expiration of patent Correct: Revocation of Patent Expiration and Termination False: On July 7, 2023, the expiration and termination of the 39 volume 2702 patent Number: 27-02 Volume: 39 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 |