CN205488470U - A single polarization oscillator for GSM frequency channel - Google Patents
A single polarization oscillator for GSM frequency channel Download PDFInfo
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- CN205488470U CN205488470U CN201620160910.0U CN201620160910U CN205488470U CN 205488470 U CN205488470 U CN 205488470U CN 201620160910 U CN201620160910 U CN 201620160910U CN 205488470 U CN205488470 U CN 205488470U
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- single polarization
- gsm frequency
- frequency range
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- radiating doublet
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Abstract
The utility model discloses a single polarization oscillator for GSM frequency channel, including radiating element, reflecting plate, feeder cable and shell, radiating element and reflecting plate are fixed in inside the shell, feeder cable passes the shell with the radiating element electricity is connected, wherein, a single polarization oscillator for GSM frequency channel still includes the mounting, radiating element and feeder line are fixed in through the mounting on the bottom plate of shell. Adopt the utility model discloses, direct contact between radiating element and the shell bottom plate can be avoided, third order intermodulation's interference is within a definite time reduced frequently, can reduce radiating element's oscillator piece and the distance between the reflecting plate to effectively make radiating element's directional diagram beam astringency reinforcing, the gain improves.
Description
Technical field
This utility model relates to antenna technical field, particularly relates to a kind of single polarization oscillator for GSM frequency range.
Background technology
Communication antenna is the important component part of mobile communication base station antenna-feedback system, and communication antenna is typically made up of, specifically radiating doublet, reflecting plate, antenna cover, feeding network four part:
Radiating doublet is typically made up of the preferable metal of electric conductivity, has guiding and amplifies the effect of electromagnetic wave, the high-frequency current signal that feed cable provides can be changed into electromagenetic wave radiation and go out, and the electromagnetic signal making communication antenna receive is higher.
Antenna cover, is the requisite part of antenna, is typically made up of nonmetallic materials in order to protect the parts inside antenna free from the influence of the external environment, plays waterproof and dustproof, anti-oxidation effect, thus ensure that antenna normally works.
Reflecting plate is also the requisite part of antenna, generally aluminum sheet material, it is therefore an objective to plays reflection, thus realizes the directed radiation performance of antenna.
Antenna cover and reflecting plate each use different processing technique, exist respectively as two parts of antenna, and are linked together by modes such as screw fastenings.
Feeding network, changes into electromagenetic wave radiation after high-frequency current signal is flowed to radiating doublet and goes out.
Wherein, communication antenna has corresponding operating frequency (resonant frequency), and the electrical quantity (directional diagram, main lobe width, sidelobe level, direction coefficient, antenna efficiency, polarization characteristic, bandwidth and input impedance etc.) of communication antenna can the conversion of quantitatively characterizing energy and the ability of directed radiation.As shown in Figure 5, due to the impact of Antenna Design theory, there is back lobe and secondary lobe in radiating doublet on the directional diagram of radiation electric magnetic energy, and its front lobe is the highest with back lobe ratio, this means that some energy is not radiated on effective direction, electromagnetic energy does not utilize fully.Simultaneously as production technology impact, the technique such as processs of radiating doublet surface, feeding network makes to be affected, and sometimes results in the serious interference of the third order intermodulation of antenna.
Summary of the invention
Technical problem to be solved in the utility model is, it is provided that a kind of simple in construction, single polarization oscillator for GSM frequency range, it is possible to decrease the interference of third order intermodulation between frequency.
Technical problem to be solved in the utility model also resides in, it is provided that a kind of single polarization oscillator for GSM frequency range, can the wave beam convergence of enhanced rad oscillator, improve gain.
In order to solve above-mentioned technical problem, this utility model provides a kind of single polarization oscillator for GSM frequency range, including radiating doublet, reflecting plate, feed cable and shell, described radiating doublet and reflecting plate are fixed on described enclosure, described feed cable electrically connects through described shell with described radiating doublet, it is characterized in that, the described single polarization oscillator for GSM frequency range also includes that fixture, described radiating doublet and feeder line are fixed on the base plate of described shell by fixture.
As the improvement of such scheme, described reflecting plate is provided with through hole, described radiating doublet and feed cable and passes described through hole, and is fixed on the base plate of described shell by described fixture.
As the improvement of such scheme, described radiating doublet includes that upwardly extending two support balun, and said two supports the top of balun and the most outwards extended vertically oscillator sheet.
As the improvement of such scheme, said two supports balun outwardly convex respectively and forms bending part.
As the improvement of such scheme, described bending part structure triangular in shape.
As the improvement of such scheme, arbitrary support balun is provided with wire hole, and described feed cable sequentially passes through described wire hole and through hole and fixes with described fixture.
As the improvement of such scheme, described wire hole is cylindrical hole.
As the improvement of such scheme, described fixture is made up of plastic material.
As the improvement of such scheme, described fixture is fixed on the base plate of shell by screw.
As the improvement of such scheme, the described single polarization oscillator for GSM frequency range also includes that press box, the cover plate of described shell are fixed on the base plate of described shell by described press box.
Implement the beneficial effects of the utility model to be:
This utility model is applicable to GSM frequency range, the most directly contacts between radiating doublet with shell bottom plate, but is fixed on shell bottom plate by radiating doublet by fixture, thus reduces the interference of third order intermodulation between frequency.
Simultaneously, reflecting plate arranges through hole, radiating doublet is through the through hole of reflecting plate, and be fixed on the base plate of shell by fixture, radiating doublet can be made to pass reflecting plate sink, distance between oscillator sheet and the reflecting plate of radiating doublet reduces, thus effectively make the pattern beam convergence of radiating doublet strengthen, i.e. radiating doublet can more be concentrated for the emittance of a direction, gain improves, when multiple radiating doublets are grouped gust, using the teaching of the invention it is possible to provide sufficiently large bandwidth of operation is to meet production requirement.
Additionally, by carrying out bending part reason in the balun of radiating doublet, can be while effectively reducing length and the height of oscillator, one of two parts of holding radiating doublet wavelength characteristic length does not change, radiating doublet also can be avoided to contact with base plate and the cover plate of shell, reduce the space hold volume of radiating doublet, improve space availability ratio.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation for the single polarization oscillator of GSM frequency range；
Fig. 2 is radiating doublet in Fig. 1, reflecting plate, feed cable and fixture combination schematic diagram；
Fig. 3 is the combination schematic diagram at another visual angle of radiating doublet in Fig. 1, reflecting plate, feed cable and fixture；
Structural representation when Fig. 4 is that in this utility model, radiating doublet does not passes through reflecting plate；
Directional diagram when Fig. 5 is that in Fig. 4, radiating doublet does not passes through reflecting plate；
Fig. 6 be in this utility model radiating doublet through reflecting plate time structural representation；
Fig. 7 be in Fig. 6 radiating doublet through reflecting plate time directional diagram.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, this utility model is described in further detail.Only this statement, the present invention occur in the text or i.e. will appear from up, down, left, right, before and after, the orientation word such as inside and outside, only on the basis of the accompanying drawing of the present invention, it is not the concrete restriction to the present invention.
See Fig. 1 ~ Fig. 3, Fig. 1 ~ Fig. 3 shows this utility model embodiment for the single polarization oscillator of GSM frequency range, this utility model includes radiating doublet 1, reflecting plate 2, feed cable 3 and shell 4, described shell 4 includes cover plate and base plate, it is internal that described radiating doublet 1 and reflecting plate 2 are fixed on described shell 4, described feed cable 3 electrically connects through described shell 4 with described radiating doublet 1, wherein, the described single polarization oscillator for GSM frequency range also includes that fixture 5, described radiating doublet 1 and feeder line 3 are fixed on the base plate of described shell 4 by fixture 5.
Compared with prior art, the most directly contact between radiating doublet 1 and shell bottom plate in this utility model, but by fixture 5, radiating doublet 1 is fixed on shell bottom plate, it also avoid contacting between radiating doublet 1 with reflecting plate 2 simultaneously, thus reduce the interference of third order intermodulation between frequency.
Described fixture 5 is made up of plastic material, and described fixture 5 is fixed on the base plate of shell 4 by screw.Preferably, described fixture 5 is for by ABS(acrylonitrile butadiene styrene copolymer), PP(polypropylene Polypropylene) etc. plastic material make, do not affect electromagnetic wave propagation, but be not limited system.
Further, the described single polarization oscillator for GSM frequency range also includes that press box, the cover plate of described shell 4 are fixed on the base plate of described shell 4 by described press box.
As shown in Fig. 2, Fig. 3 and Fig. 6, described reflecting plate 2 is provided with through hole 21, described radiating doublet 1 and feed cable 3 and passes described through hole 21, and is fixed on the base plate of described shell 4 by described fixture 5.
It should be noted that, radiating doublet 1 is through the through hole 21 of reflecting plate 2, and be fixed on the base plate of shell 4 by fixture 5, radiating doublet 1 can be made to sink through reflecting plate 2, distance between oscillator sheet 11 and the reflecting plate 2 of radiating doublet 1 reduces, thus effectively make the pattern beam convergence of radiating doublet 1 strengthen, improve gain.Specifically, can be found in Fig. 4 ~ Fig. 7, Fig. 5 is the radiating doublet 1 directional diagram when not passing through reflecting plate 2, in Fig. 5, the maxgain value of radiating doublet is 8.39, Fig. 7 is that radiating doublet 1 is through directional diagram during reflecting plate 2, in Fig. 7, the maxgain value of radiating doublet is 8.46, knowable to Fig. 5 and Fig. 7, when radiating doublet 1 is through reflecting plate 2, the wave beam convergence of radiating doublet 1 is preferable, the 3DB beam angle of its vertical and horizontal plane can be narrower, i.e. radiating doublet 1 can more be concentrated for the emittance of a direction, and gain improves.
As shown in Figures 2 and 3, described radiating doublet 1 includes that upwardly extending two support balun 12, and said two supports the top of balun 12 and the most outwards extended vertically oscillator sheet 11.Specifically, said two supports balun 12 outwardly convex respectively and forms bending part.The preferred structure triangular in shape of described bending part, but it is not limited system.
It should be noted that, by carrying out bending part reason in the balun 12 of radiating doublet 1, can be while effectively reducing length and the height of radiating doublet 1, one of two parts of holding radiating doublet 1 wavelength characteristic length does not change, radiating doublet 1 also can be avoided to contact with base plate and the cover plate of shell 4, reduce the space hold volume of radiating doublet 1, improve space availability ratio.
It addition, arbitrary support balun 12 is provided with wire hole 13, described feed cable 3 sequentially passes through described wire hole 13 and through hole 21 and fixes with described fixture 5 so that the wiring of feed cable 3 is the most reasonable.The described preferably cylindrical through hole of wire hole 13, but it is not limited system.
From the foregoing, it will be observed that this utility model is applicable to GSM frequency range, the most directly contact between radiating doublet 1 and shell bottom plate, but by fixture 5, radiating doublet 1 is fixed on shell bottom plate, thus reduce the interference of third order intermodulation between frequency；Simultaneously, reflecting plate 2 arranges through hole 21, radiating doublet 1 is through the through hole 21 of reflecting plate 2, and be fixed on the base plate of shell 4 by fixture 5, radiating doublet 1 can be made to sink through reflecting plate 2, distance between oscillator sheet 11 and the reflecting plate 2 of radiating doublet 1 reduces, thus effectively make the pattern beam convergence of radiating doublet 1 strengthen, i.e. radiating doublet 1 can more be concentrated for the emittance of a direction, gain improves, when multiple radiating doublets 1 are grouped gust, using the teaching of the invention it is possible to provide sufficiently large bandwidth of operation is to meet production requirement；Additionally, by carrying out bending part reason in the balun 12 of radiating doublet 1, can be while effectively reducing length and the height of radiating doublet 1, one of two parts of holding radiating doublet 1 wavelength characteristic length does not change, radiating doublet 1 also can be avoided to contact with base plate and the cover plate of shell 4, reduce the space hold volume of radiating doublet 1, improve space availability ratio.
The above is preferred implementation of the present utility model; it should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection domain of the present utility model.
Claims (10)
1. the single polarization oscillator for GSM frequency range, including radiating doublet, reflecting plate, feed cable and shell, described radiating doublet and reflecting plate are fixed on described enclosure, described feed cable electrically connects through described shell with described radiating doublet, it is characterized in that, the described single polarization oscillator for GSM frequency range also includes that fixture, described radiating doublet and feeder line are fixed on the base plate of described shell by fixture.
2. the single polarization oscillator for GSM frequency range as claimed in claim 1, it is characterised in that described reflecting plate is provided with through hole, described radiating doublet and feed cable and passes described through hole, and is fixed on the base plate of described shell by described fixture.
3. the single polarization oscillator for GSM frequency range as claimed in claim 2, it is characterised in that described radiating doublet includes that upwardly extending two support balun, and said two supports the top of balun and the most outwards extended vertically oscillator sheet.
4. the single polarization oscillator for GSM frequency range as claimed in claim 3, it is characterised in that said two supports balun outwardly convex respectively and forms bending part.
5. the single polarization oscillator for GSM frequency range as claimed in claim 4, it is characterised in that described bending part structure triangular in shape.
6. the single polarization oscillator for GSM frequency range as claimed in claim 4, it is characterised in that arbitrary support balun is provided with wire hole, and described feed cable sequentially passes through described wire hole and through hole and fixes with described fixture.
7. the single polarization oscillator for GSM frequency range as claimed in claim 6, it is characterised in that described wire hole is cylindrical hole.
8. the single polarization oscillator for GSM frequency range as claimed in claim 1, it is characterised in that described fixture is made up of plastic material.
9. the single polarization oscillator for GSM frequency range as claimed in claim 1, it is characterised in that described fixture is fixed on the base plate of shell by screw.
10. the single polarization oscillator for GSM frequency range as claimed in claim 1, it is characterised in that the described single polarization oscillator for GSM frequency range also includes that press box, the cover plate of described shell are fixed on the base plate of described shell by described press box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620160910.0U CN205488470U (en) | 2016-03-03 | 2016-03-03 | A single polarization oscillator for GSM frequency channel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620160910.0U CN205488470U (en) | 2016-03-03 | 2016-03-03 | A single polarization oscillator for GSM frequency channel |
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| CN205488470U true CN205488470U (en) | 2016-08-17 |
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| CN201620160910.0U Active CN205488470U (en) | 2016-03-03 | 2016-03-03 | A single polarization oscillator for GSM frequency channel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107508048A (en) * | 2017-07-10 | 2017-12-22 | 佛山市波谱达通信科技有限公司 | A kind of directional antenna arrangement |
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2016
- 2016-03-03 CN CN201620160910.0U patent/CN205488470U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107508048A (en) * | 2017-07-10 | 2017-12-22 | 佛山市波谱达通信科技有限公司 | A kind of directional antenna arrangement |
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