CN202651330U - Air stripline power divider - Google Patents
Air stripline power divider Download PDFInfo
- Publication number
- CN202651330U CN202651330U CN 201220171413 CN201220171413U CN202651330U CN 202651330 U CN202651330 U CN 202651330U CN 201220171413 CN201220171413 CN 201220171413 CN 201220171413 U CN201220171413 U CN 201220171413U CN 202651330 U CN202651330 U CN 202651330U
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- strip line
- power splitter
- output
- stripline
- input
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Abstract
The embodiments of the utility model disclose an air stripline power divider. The stripline of the air stripline power divider comprises an input stripline, at least one first output stripline and a second output stripline which are connected to a same center. The input stripline and the first output stripline are located at one side of the center and a dielectric plate is fixed under the input stripline and the first output stripline, and the second output stripline is located at the other side of the center. In this way, the dielectric plate can be used to effectively reduce the line width of the input stripline and the line width of the first output stripline so as to effectively reduce the width of the whole power divider, so that the air stripline power divider has a more compact structure, the size of the power divider is reduced and the utilization rate of the cavity space is improved while ensuring the advantage of low loss, and a same cavity is applicable to a high-frequency range power divider and a low-frequency range power divider at the same time so as to be conveniently replaced and make an antenna feed network release more space.
Description
Technical field
The utility model relates to the communications field, relates in particular to a kind of air strip line power splitter.
Background technology
In the present mobile communication antenna, power splitter plays an important role in antenna feeding network.No matter electrical tilt antenna also is that power splitter all is widely used in the non-electrical tilt antenna, for example cavity strip line power splitter or microstrip power divider, etc. the merit proportion by subtraction or do not wait the merit proportion by subtraction, power splitter plays a part power division or power combination.As shown in Figure 1, the air strip line power splitter specifically is applied to antenna feeding network.But along with the development of mobile communication antenna, large angle of declination antenna power splitter when phase shifter increases has also increased; Multiband common antenna feeding network increases along with the increase of frequency range, the increase that power splitter also can be at double; And other passive device that constantly adds in the feeding network, filter, mixer etc. allows taking up room of power splitter further dwindle; The user is to the volume restrictions of whole antenna for base station in addition, so that antenna is more and more higher to the requirement of feeding network, power splitter also just has to consider to adopt frequency band wider, and volume is less, the power splitter that loss is little.And as shown in Figure 2, although the loss of existing air strip line power splitter is little, but volume is larger, and high band and low-frequency range adopt is different overall dimension so that low frequency air strip line power splitter often higher-frequency air strip line power splitter is long.Therefore existing power splitter volume is larger, and the cavity space utilance is low, and high band and low-frequency range need adopt the power splitter of different overall dimensions, is unfavorable for the application that further expands of power splitter.
The utility model content
The utility model embodiment technical problem to be solved is, a kind of air strip line power splitter is provided, with reduced volume when guaranteeing little loss, improves the cavity space utilance, and same cavity is applicable to the power splitter of high band and low-frequency range simultaneously, replaces with convenient.
In order to solve the problems of the technologies described above, the utility model embodiment has proposed a kind of air strip line power splitter, its strip line comprise be connected in concentric input strip line, at least one first output strip line and second output strip line, wherein, described input strip line and the first output strip line are positioned at described center one side and the below is fixed with a dielectric-slab, and described the second output strip line is positioned at described center opposite side.
Further, described the second output strip line is bending-like.
Further, the relatively described center of the described input strip line other end is connected with input cable, the relatively described center of described the first output strip line other end is connected with the first output cable, and the relatively described center of described the second output strip line other end is connected with the second output cable.
Further, described the first output strip line is high-power output strip line, and described the second output strip line is small-power output strip line.
Further, described dielectric-slab is the medium with low dielectric constant plate.
Further, described dielectric-slab main body places described input strip line and the first output strip line below, and its extending part is in described the second output strip line below.
Further, described power splitter also comprises the cavity that is equipped with described strip line and dielectric-slab.
Further, described cavity is the inner chamber body that is surrounded by base and loam cake, and the orthographic projection of the non-described dielectric-slab of described base inner bottom surface partly forms concave surface.
Further, described power splitter is high frequency power splitter or low frequency power splitter.
Further, described power splitter is one-to-two power splitter, one minute three power splitter or one minute four power splitter.
The utility model embodiment is by providing a kind of air strip line power splitter, its strip line comprises and is connected in concentric input strip line, at least one first output strip line and the second output strip line, wherein, described input strip line and the first output strip line are positioned at described center one side and the below is fixed with a dielectric-slab, described the second output strip line is positioned at described center opposite side, like this, dielectric-slab can effectively reduce the live width of input strip line and the first output strip line, thereby effectively reduce the width of whole power splitter, and then the structure of this air strip line power splitter is compacter, when guaranteeing little loss, dwindled the volume of power splitter, improved the cavity space utilance, and same cavity is applicable to the power splitter of high band and low-frequency range simultaneously, conveniently to replace and to allow antenna feeding network can discharge more space; In addition, the second output strip line of bending can effectively shorten the length of power splitter, has further dwindled the volume of power splitter when guaranteeing little loss, has further improved the cavity space utilance.
Description of drawings
Fig. 1 is the application schematic diagram of the air strip line power splitter of prior art.
Fig. 2 is the structure chart of the air strip line power splitter of prior art.
Fig. 3 is the structure chart of the one-to-two air strip line power splitter of the utility model the first embodiment.
Fig. 4 is the structure chart of strip line in the one-to-two air strip line power splitter of the utility model the first embodiment.
Fig. 5 is the structure chart of strip line in the one-to-two air strip line power splitter of the utility model the second embodiment.
Embodiment
Below in conjunction with accompanying drawing, embodiment is elaborated to the utility model.
With reference to figure 3 and Fig. 4, the one-to-two air strip line power splitter of the utility model the first embodiment is the high frequency power splitter, it mainly comprises cavity 1, and installation is placed in strip line 2 and dielectric-slab 3 in the cavity 1, wherein cavity 1 is the inner chamber body that is surrounded by base 4 and loam cake 5, strip line 2 comprises and is connected in concentric input strip line 6, the first output strip line 7 and the second output strip line 8, wherein, input strip line 6 and the first output strip line 7 are positioned at center one side (namely input strip line 6 and first export strip line 7 be positioned at homonymy), the second output strip line 8 is positioned at the center opposite side, and the second output strip line 8 is bending-like.The input strip line 6 relative center other ends are connected with input cable 9, the first output strip lines 7 relative center other ends and are connected with the first output cable 10, the second and export the strip lines 8 relative center other ends and be connected with the second output cable 11.Wherein, strip line 2 is fixed in dielectric-slab 3 tops by plastic rivet 12, dielectric-slab 3 main bodys place input strip line 6 and the first output strip line 7 belows, and its extending part is in the second output strip line 8 belows, dielectric-slab 3 is the medium with low dielectric constant plate, thereby can reduce the live width of strip line 2, reduce simultaneously the loss that dielectric-slab 3 brings.The connected mode of cable and strip line can adopt welding or other electric connection mode.Like this, the second output strip line 8 of bending can effectively shorten the length of power splitter, and structure is compacter, has dwindled the volume of power splitter when guaranteeing little loss, has improved the cavity space utilance, allows antenna feeding network can discharge more space.
Certainly, the area that dielectric-slab 3 main body areas generally make up greater than input strip line 6 and the first output strip line 7, it can adopt regular shape, such as rectangle etc., also can adopt other irregularly shaped; And can also adopt other fixed form between strip line 2 and the dielectric-slab 3, as by the buckle snapping etc.
The orthographic projection of the non-dielectric-slab of base 4 inner bottom surfaces partly forms concave surface, also is that the part that is positioned in the base 4 beyond the dielectric-slab 3 is concave surface, and the second output strip line 8 is strengthened to the distance between base 4 inner bottom surfaces.
Because the space of non-Filled Dielectrics and dielectric-slab 3 adopt low-k, can control better the loss of power splitter.
In antenna for base station is used; in order to realize better the vertical plane wave beam forming; usually can use the power splitter of unequal power ratio; and an end and input that power output is large are located at the same side; be that above-mentioned the first output strip line 7 is high-power output strip line; relatively, the second output strip line 8 is small-power output strip line.The two combined width of input strip line 6 and the first output strip line 7 has determined the width of power splitter, and the employing Filled Dielectrics then can reduce the power splitter width effectively.And the second output strip line 8 power outputs are little, and live width is narrower, its bending has more effectively been shortened the length of power splitter, and cavity space can be utilized to greatest extent.
When using, above-mentioned power splitter can be the high frequency power splitter, also can be the low frequency power splitter.When being the high frequency power splitter, adopt input-output section 1/4 wavelength Two Stages, can expand high band bandwidth (such as 1.7-2.7GHz); When being the low frequency power splitter, use with the high frequency power splitter in identical cavity 1 and dielectric-slab 3, only need adjust as shown in Figure 5 the size of metal feeder, adopt input-output section 1/8 wavelength conversion, can obtain and the equal performance of high frequency power splitter at low-frequency range (such as 790-960MHz).
As a kind of execution mode, one minute three air strip line power splitter, one minute four air strip line power splitter also can carry out similar configuration such as above-mentioned content equally, for example, in one minute three air strip line power splitter, strip line 2 comprises and is connected in concentric input strip line 6, two first output strip lines 7 and the second output strip line 8 etc.
The utilance of its cavity space of power splitter of the utility model embodiment is maximized, and height frequency range cavity and dielectric-slab is general, has realized compact conformation, the relative wideband of low-and high-frequency and the identical compact power splitter of apparent size.
The above is embodiment of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also are considered as protection range of the present utility model.
Claims (10)
1. air strip line power splitter, it is characterized in that, its strip line comprise be connected in concentric input strip line, at least one first output strip line and second output strip line, wherein, described input strip line and the first output strip line are positioned at described center one side and the below is fixed with a dielectric-slab, and described the second output strip line is positioned at described center opposite side.
2. air strip line power splitter as claimed in claim 1 is characterized in that, described the second output strip line is bending-like.
3. power splitter as claimed in claim 1, it is characterized in that, the relatively described center of the described input strip line other end is connected with input cable, the relatively described center of described the first output strip line other end is connected with the first output cable, and the relatively described center of described the second output strip line other end is connected with the second output cable.
4. power splitter as claimed in claim 1 is characterized in that, described the first output strip line is high-power output strip line, and described the second output strip line is small-power output strip line.
5. power splitter as claimed in claim 1 is characterized in that, described dielectric-slab is the medium with low dielectric constant plate.
6. power splitter as claimed in claim 1 is characterized in that, described dielectric-slab main body places described input strip line and the first output strip line below, and its extending part is in described the second output strip line below.
7. power splitter as claimed in claim 6 is characterized in that, described power splitter also comprises the cavity that is equipped with described strip line and dielectric-slab.
8. power splitter as claimed in claim 7 is characterized in that, described cavity is the inner chamber body that is surrounded by base and loam cake, and the orthographic projection of the non-described dielectric-slab of described base inner bottom surface partly forms concave surface.
9. such as each described power splitter in the claim 1 to 8, it is characterized in that, described power splitter is high frequency power splitter or low frequency power splitter.
10. such as each described power splitter in the claim 1 to 8, it is characterized in that, described power splitter is one-to-two power splitter, one minute three power splitter or one minute four power splitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220171413 CN202651330U (en) | 2012-04-20 | 2012-04-20 | Air stripline power divider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220171413 CN202651330U (en) | 2012-04-20 | 2012-04-20 | Air stripline power divider |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202651330U true CN202651330U (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220171413 Expired - Lifetime CN202651330U (en) | 2012-04-20 | 2012-04-20 | Air stripline power divider |
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| CN (1) | CN202651330U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015023204A1 (en) * | 2013-08-15 | 2015-02-19 | Siemens Research Center Limited Liability Company | Device for radio-frequency power coupling and method of using the device |
| CN105811065A (en) * | 2016-04-21 | 2016-07-27 | 广东通宇通讯股份有限公司 | Small-size ultra wideband power divider |
| CN107565227A (en) * | 2017-07-27 | 2018-01-09 | 中国船舶重工集团公司第七二四研究所 | A kind of low sidelobe antenna air strip line and poor power division network |
-
2012
- 2012-04-20 CN CN 201220171413 patent/CN202651330U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015023204A1 (en) * | 2013-08-15 | 2015-02-19 | Siemens Research Center Limited Liability Company | Device for radio-frequency power coupling and method of using the device |
| US9923259B2 (en) | 2013-08-15 | 2018-03-20 | Ooo Siemens | Device for radio-frequency power coupling and method of using the device |
| CN105811065A (en) * | 2016-04-21 | 2016-07-27 | 广东通宇通讯股份有限公司 | Small-size ultra wideband power divider |
| CN105811065B (en) * | 2016-04-21 | 2019-04-19 | 广东通宇通讯股份有限公司 | A kind of small size ultra wideband power divider |
| CN107565227A (en) * | 2017-07-27 | 2018-01-09 | 中国船舶重工集团公司第七二四研究所 | A kind of low sidelobe antenna air strip line and poor power division network |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |
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| CX01 | Expiry of patent term |