CN202423563U - Antenna feed network and antenna - Google Patents
Antenna feed network and antenna Download PDFInfo
- Publication number
- CN202423563U CN202423563U CN2012200069412U CN201220006941U CN202423563U CN 202423563 U CN202423563 U CN 202423563U CN 2012200069412 U CN2012200069412 U CN 2012200069412U CN 201220006941 U CN201220006941 U CN 201220006941U CN 202423563 U CN202423563 U CN 202423563U
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- main feeder
- feeding network
- antenna
- outer conductor
- inner wire
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Abstract
The utility model discloses an antenna feed network and an antenna, belonging to the communication field. The feed network comprises feed network outer conductors and feed network inner conductors, the feed network outer conductors are arranged at the back of a reflecting plate and include a plurality of conductors, gaps are reserved between adjacent conductors of the conductors, the feed network inner conductors are arranged in the gaps and have integrated structures at power dividing positions and corners, and the antenna comprises the feed network. The feed network inner conductors are designed into the integrated structures at the power dividing positions and the corners, so that resonance can be eliminated, loss of the antenna is reduced, and radiation efficiency of the antenna is improved.
Description
Technical field
The utility model relates to the communications field, particularly a kind of antenna feeding network and antenna.
Background technology
Along with the development of mobile communication technology, the design of antenna for base station is more and more ripe.
The antenna of prior art comprises antenna radiation unit, reflecting plate, main feeder and feeding network; Main feeder comprises main feeder outer conductor and the main feeder inner wire that is positioned at the main feeder outer conductor; Rely on a conductor part to connect between two main feeder inner wires, main feeder outer conductor wherein one side is an Open architecture.It is that metal adopts a plurality of screws to be connected that existing feeding network divides with corner in merit.
The inventor finds that there is following problem at least in prior art:
The main feeder outer conductor is the Open architecture of one side wherein, has the loss of portion of energy, and the energy of loss can't obtain utilizing, and makes antenna each item index variation behind the loss of energy.Feeding network is complicated in the assembling at merit branch and turning, and poor reliability causes feeding network to have PIM (Passive Intermodulation, passive intermodulation) risk at merit branch and corner.
The utility model content
The purpose of the utility model has provided a kind of loss that can reduce antenna, improves the antenna feeding network of antenna radiation efficiency.
Another purpose of the utility model provides a kind of simple in structure, the antenna that energy loss is little.
The technical scheme taked of the utility model is to achieve these goals:
A kind of antenna feeding network comprises reflecting plate and feeding network, and said feeding network comprises feeding network outer conductor and feeding network inner wire; It is characterized in that; The said reflecting plate back side is provided with the feeding network outer conductor, and said feeding network outer conductor comprises a plurality of conductors, is provided with the space between the adjacent conductor in said a plurality of conductors; Said feeding network inner wire is arranged in the said space, and said feeding network inner wire is structure as a whole with corner at the merit branch.
Another technical scheme that the utility model embodiment provides is:
A kind of antenna comprises the feeding network in the above-mentioned antenna feeding network.
Another technical scheme that the utility model embodiment provides is:
A kind of antenna; Comprise reflecting plate and main feeder; Said main feeder comprises main feeder outer conductor and main feeder inner wire, it is characterized in that, said reflecting plate front is provided with said main feeder outer conductor; Be provided with the main feeder inner wire in the enclosure space that said main feeder outer conductor and said reflecting plate enclose, isolate being provided with between said main feeder outer conductor and the said main feeder inner wire.
The beneficial effect of the technical scheme that the utility model embodiment provides is: the feeding network inner wire of the utility model antenna feeding network is designed to integrative-structure at the merit branch with corner; Can shake by detuning; Reduce the loss of the utility model antenna, improve the radiation efficiency of antenna.Adopt the antenna of the utility model, main feeder outer conductor and main feeder inner wire volume are bigger, have reduced the conductor losses of main feeder inner and outer conductor.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the utility model embodiment; To do one to the accompanying drawing that uses among the embodiment below introduces simply; Obviously, below listed accompanying drawing only be some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the antenna feeding network structural representation that the utility model embodiment provides;
Fig. 2 is the partial schematic diagram of Fig. 1;
Fig. 3 is the feeding network inner wire structural representation that the utility model embodiment provides;
Fig. 4 is the antenna structure view that the utility model embodiment provides;
Fig. 5 is the structural representation that main feeder that the utility model embodiment provides is connected with reflecting plate;
Fig. 6 is that a kind of feeding network circuit that the utility model embodiment provides connects sketch map;
Fig. 7 is that the another kind of feeding network circuit that the utility model embodiment provides connects sketch map;
Fig. 8 is that another feeding network circuit that the utility model embodiment provides connects sketch map;
Fig. 9 is that another feeding network circuit that the utility model embodiment provides connects sketch map.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer, will combine accompanying drawing that the utility model execution mode is done to describe in detail further below.
Referring to Fig. 1 and Fig. 2, a kind of antenna feeding network comprises reflecting plate 2 and feeding network 4; Feeding network 4 comprises feeding network outer conductor 40 and feeding network inner wire 41; Reflecting plate 2 back sides are provided with feeding network outer conductor 40, and feeding network outer conductor 40 comprises a plurality of conductors 401, are provided with space 5 between the adjacent conductor in a plurality of conductors 401; Feeding network inner wire 41 is arranged in the space 5, and feeding network inner wire 41 divides 410 to be structure as a whole with 411 places, turning in merit.
The feeding network inner wire of the utility model is designed to integrative-structure at the merit branch with corner; Be that main feeder outer conductor and reflecting plate are around in around the main feeder inner wire, form the coaxial line structure, can shake by detuning; Reduce the loss of the utility model antenna, improve the radiation efficiency of antenna.
Referring to Fig. 3, Fig. 3 is a feeding network inner wire structural representation, and the paired use that the feeding network inner wire can be as shown in Figure 3 also can be used separately.In order better to reduce the loss of the utility model antenna, feeding network inner wire 41 comprises many continuous leads 412, and the position how to link to each other with lead 412 is structure as a whole.Be that feeding network inner wire 41 can be structure as a whole global design.
Referring to Fig. 4, present embodiment is on the basis of a last technical scheme, and as preferably, reflecting plate 2 is structure as a whole with feeding network outer conductor 40.
The integrative-structure cost of manufacture is low, and reliability is high, and it is high to produce efficiency of assembling.
Referring to Fig. 1 and Fig. 2; Present embodiment is on the basis of a last technical scheme; As preferably, feeding network inner wire 40 merits divide the upper surface at 410 places and/or lower surface to be provided with phase shift medium (not drawing among the figure), can change the azimuth of antenna through moving the phase shift medium.Can realize the phase shift of any number of arrays with quadrat method,, increase the phase shift medium of different proportion, can support the phase shift of the radiating element of any number through in feeding network merit office.
Specifically referring to following explanation:
Referring to Fig. 6, Fig. 7, Fig. 8 and Fig. 9; The merit office of each figure is provided with phase shift medium 6; Wherein Fig. 6 is identical with the ratio of phase shift medium 6 among Fig. 7, and they are different with the ratio of phase shift medium 6 among Fig. 7 and Fig. 8, and the radiating element number that connects among each figure is different; The amount of phase shift that final radiating element obtains is also different, and resulting amount of phase shift is arithmetic progression and arranges.
Referring to Fig. 4, as preferably, present embodiment feeding network outer conductor 41 belows are provided with cover plate 8; The material of cover plate can select metal, plastics or plastics plating.Cover plate 8 is positioned at feeding network outer conductor 41 surfaces.
Cover plate is set shields feeding network, the feeding network energy can't be revealed.Preferred plastics plating of the material of cover plate or aluminium sheet.When the cover plate that uses plastic material, can improve the reliability of feeding network.
The antenna feeding network that the utility model embodiment provides, the feeding network inner wire is designed to integrative-structure at the merit branch with corner, can shake by detuning, reduces the loss of the utility model antenna, improves the radiation efficiency of antenna.
Referring to Fig. 4; The utility model embodiment also provides a kind of antenna, comprises the feeding network 4 in the above-mentioned antenna feeding network, further comprises main feeder 3; Main feeder 3 comprises main feeder outer conductor 30 and main feeder inner wire 31; Reflecting plate 2 fronts are provided with main feeder outer conductor 30, are provided with main feeder inner wire 31 in the enclosure space that main feeder outer conductor 30 and reflecting plate 2 enclose, and isolate being provided with between main feeder outer conductor 30 and the main feeder inner wire 31.
Main feeder outer conductor 30 seals main feeder inner wire 31 all around with reflecting plate 2, and main feeder outer conductor 30 is provided with 31 isolation of main feeder inner wire, formation coaxial line structure, thus removed the phase shift dielectric loss.
Referring to Fig. 4, present embodiment is on the basis of a last embodiment, and technical scheme is more specifically: a kind of antenna; Comprise antenna radiation unit 1, reflecting plate 2, main feeder 3 and feeding network 4, main feeder 3 comprises main feeder outer conductor 30 and main feeder inner wire 31, isolates being provided with between main feeder outer conductor 30 and the main feeder inner wire 31; Feeding network 4 comprises feeding network outer conductor 40 and feeding network inner wire 41; Reflecting plate 2 one sides are provided with feeding network outer conductor 40, and reflecting plate 2 another sides are provided with main feeder outer conductor 30, are provided with main feeder inner wire 31 in the enclosure space that main feeder outer conductor 30 and reflecting plate 2 enclose; Isolate between main feeder outer conductor 30 and the main feeder inner wire 31 and be provided with; Strutting piece can be set in enclosure space, and strutting piece is fixed on the inwall of main feeder outer conductor 30, uses strutting piece to support main feeder inner wire 31; Guarantee the position between the main feeder internal and external conductor, thereby guarantee each performance index of antenna.
Main feeder outer conductor 30 is around in around the main feeder inner wire 31 with reflecting plate 2, forms the coaxial line structure, thereby has removed the phase shift dielectric loss.Adopt the structure of the utility model, main feeder outer conductor and main feeder inner wire volume are bigger, make the loss of main feeder inner and outer conductor few.
Referring to Fig. 4, present embodiment is on the basis of a last technical scheme, and as preferably, main feeder outer conductor 30 is structure as a whole with reflecting plate 2.
The phase shift dielectric loss has been removed in the design of integrative-structure, and conductor losses is few.
Reflecting plate is metallic plate or plastics applying metal plate among the utility model embodiment, preferred aluminium sheet or copper coin.The utility model is adding man-hour, and main feeder outer conductor, feeding network outer conductor and reflecting plate all adopt metallic plate, one machine-shaping.
The antenna that the utility model embodiment provides, feeding network inner wire divide with corner in merit and are designed to integrative-structure, and main feeder outer conductor reflecting plate is around in around the main feeder inner wire, form the coaxial line structure, thereby have removed the phase shift dielectric loss.Adopt the structure of the utility model, main feeder outer conductor and main feeder inner wire volume are bigger, make the loss of main feeder inner and outer conductor few.
Referring to Fig. 5; Another technical scheme that the utility model embodiment provides is: a kind of antenna; Comprise reflecting plate 2 and main feeder 3, main feeder 3 comprises main feeder outer conductor 30 and main feeder inner wire 31, and reflecting plate 2 fronts are provided with main feeder outer conductor 30; Main feeder outer conductor 30 and the interior main feeder inner wire 31 of enclosure space that reflecting plate 2 encloses isolate being provided with between main feeder outer conductor 30 and the main feeder inner wire 31.
The main feeder inner wire is surrounded by main feeder outer conductor 30 and reflecting plate 2, forms the coaxial line structure, adopts the antenna of this structure to remove the phase shift dielectric loss.Adopt the antenna structure of present embodiment, main feeder outer conductor and main feeder inner wire volume are bigger, make the loss of main feeder inner and outer conductor few.
Present embodiment is on the basis of said structure antenna, and as preferably, main feeder outer conductor 30 is structure as a whole with reflecting plate 2.
The phase shift dielectric loss has been removed in the design of integrative-structure, and conductor losses is few.
The antenna that the utility model embodiment provides, main feeder outer conductor 30 is around in around the main feeder inner wire with reflecting plate 2, forms the coaxial line structure, thereby has removed the phase shift dielectric loss.Adopt the structure of the utility model, main feeder outer conductor and main feeder inner wire volume are bigger, make the loss of main feeder inner and outer conductor few.
The main feeder of the utility model can be as shown in Figure 5, and main feeder can be provided with two, is separately positioned on the both sides of antenna radiation unit 1, also a main feeder can be set as required.
The above is merely the preferred embodiment of the utility model, and is in order to restriction the utility model, not all within the spirit and principle of the utility model, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection range of the utility model.
Claims (11)
1. an antenna feeding network comprises reflecting plate and feeding network, and said feeding network comprises feeding network outer conductor and feeding network inner wire; It is characterized in that; The said reflecting plate back side is provided with the feeding network outer conductor, and said feeding network outer conductor comprises a plurality of conductors, is provided with the space between the adjacent conductor in said a plurality of conductors; Said feeding network inner wire is arranged in the said space, and said feeding network inner wire is structure as a whole with corner at the merit branch.
2. antenna feeding network according to claim 1 is characterized in that, said feeding network inner wire comprises many continuous leads, and said multiple conducting wires is structure as a whole.
3. antenna feeding network according to claim 1 is characterized in that, said reflecting plate and said feeding network outer conductor are structure as a whole.
4. antenna feeding network according to claim 1 is characterized in that, the upper surface and/or the lower surface of said feeding network inner wire merit office are provided with the phase shift medium.
5. antenna feeding network according to claim 1 is characterized in that, said feeding network outer conductor surface is provided with cover plate.
6. antenna feeding network according to claim 1 is characterized in that, said reflecting plate is metallic plate or plastics applying metal plate.
7. an antenna is characterized in that, comprises the feeding network in each said antenna feeding network of claim 1-6.
8. antenna according to claim 7; It is characterized in that; Also comprise main feeder, said main feeder comprises main feeder outer conductor and main feeder inner wire, and said reflecting plate front is provided with said main feeder outer conductor; Be provided with the main feeder inner wire in the enclosure space that said main feeder outer conductor and said reflecting plate enclose, isolate being provided with between said main feeder outer conductor and the said main feeder inner wire.
9. antenna according to claim 8 is characterized in that, said main feeder outer conductor and said reflecting plate are structure as a whole.
10. antenna; Comprise reflecting plate and main feeder; Said main feeder comprises main feeder outer conductor and main feeder inner wire, it is characterized in that, said reflecting plate front is provided with said main feeder outer conductor; Be provided with the main feeder inner wire in the enclosure space that said main feeder outer conductor and said reflecting plate enclose, isolate being provided with between said main feeder outer conductor and the said main feeder inner wire.
11. antenna according to claim 10 is characterized in that, said main feeder outer conductor and said reflecting plate are structure as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200069412U CN202423563U (en) | 2012-01-09 | 2012-01-09 | Antenna feed network and antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200069412U CN202423563U (en) | 2012-01-09 | 2012-01-09 | Antenna feed network and antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202423563U true CN202423563U (en) | 2012-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200069412U Expired - Lifetime CN202423563U (en) | 2012-01-09 | 2012-01-09 | Antenna feed network and antenna |
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| CN (1) | CN202423563U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108377661A (en) * | 2015-03-16 | 2018-08-07 | 株式会社Kmw | Signal distribution/coupling apparatus in the antenna assembly of mobile communication base station |
| CN113241522A (en) * | 2021-03-22 | 2021-08-10 | 广东通宇通讯股份有限公司 | Feed system of antenna array |
| CN113241520A (en) * | 2021-03-22 | 2021-08-10 | 广东通宇通讯股份有限公司 | Array antenna |
-
2012
- 2012-01-09 CN CN2012200069412U patent/CN202423563U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108377661A (en) * | 2015-03-16 | 2018-08-07 | 株式会社Kmw | Signal distribution/coupling apparatus in the antenna assembly of mobile communication base station |
| CN108377661B (en) * | 2015-03-16 | 2020-05-05 | 株式会社Kmw | Signal distributing/combining device in antenna device of mobile communication base station |
| CN113241522A (en) * | 2021-03-22 | 2021-08-10 | 广东通宇通讯股份有限公司 | Feed system of antenna array |
| CN113241520A (en) * | 2021-03-22 | 2021-08-10 | 广东通宇通讯股份有限公司 | Array antenna |
| CN113241522B (en) * | 2021-03-22 | 2023-10-13 | 广东通宇通讯股份有限公司 | Feed system of antenna array |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |
|
| CX01 | Expiry of patent term |