CN103606730B - A kind of satellite station feed assembly - Google Patents
A kind of satellite station feed assembly Download PDFInfo
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- CN103606730B CN103606730B CN201310582959.6A CN201310582959A CN103606730B CN 103606730 B CN103606730 B CN 103606730B CN 201310582959 A CN201310582959 A CN 201310582959A CN 103606730 B CN103606730 B CN 103606730B
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- public port
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Abstract
The present invention relates to a kind of satellite station feed assembly, the cover plate comprising body cavity and be connected with described body cavity, described body cavity is provided with public port, waveguide group, emission port, coupling window and two power feed hole, two power feed hole are connected by waveguide transmission line, and described cover plate is provided with filter cavity; Described public port, waveguide group and emission port form the transmission channel of this satellite feed assembly, and described public port, waveguide group, coupling window, filter cavity, the first power feed hole, waveguide transmission line and the second power feed hole form the receive path of this satellite feed assembly.Satellite station of the present invention feed assembly, body cavity adopts overall processing to be formed, and dock the sending and receiving realizing microwave radio signal high the isolation to transmit with the cover plate with filter cavity, whole feed modular construction simplifies, volume compact, can realize water-proof function, substantially increases product reliability energy.
Description
[technical field]
The present invention relates to a kind of satellite communication equipment, particularly relate to a kind of satellite station feed assembly.
[background technology]
In recent years, because the natural calamities such as earthquake take place frequently, surging of the demands such as some Large-scale Mobile news interviews, traditional communication mode receives increasing restriction, has complied with this trend, and satellite communication is a dark horse.
Because the Earth is a spheroid, and the downlink wave beam of satellite-signal is horizontal linear propagation, and this same polarized signal just causing different orientations to receive is different.Thus, from satellite reception to microwave radio signal generally comprise the polarized signal of two different frequency branch roads.In order to transmit and receive the branch road polarized signal of required frequency, satellite station feed assembly is usually used to realize.
As illustrated in figs. ia and ib, traditional satellite station feed assembly is formed by orthomode transducer, filter, polarization rotating joint three simple stack combinations of module.Its advantage be it achieve transmitting and receiving two-way polarized signal isolation transmission and transmitting terminal possesses 360 degree of polarized rotation functions, to wherein a certain module, concrete requirement can be proposed simultaneously.But, traditional satellite station feed assembly show are mostly shortcoming and defect, such as overall volume is large, is unfavorable for the development trend of satellite station miniaturization; The each component combination of feed together after, overall performance severe exacerbation, particularly transmitting terminal standing wave worsen comparatively large, are unfavorable for the use in high-power situation.
[summary of the invention]
The object of the invention is to overcome above-mentioned deficiency, a kind of satellite feed assembly is provided, adopt entirety to draw chamber and realize multifunctional unit, simple compact structure form is adopted to realize two kinds of orthogonal linear polarization signals matching transmission respectively under high-isolation, overall processing, less demanding to structure precision, cost is lower, is beneficial to batch production.
For realizing this object, the present invention adopts following technical scheme:
A kind of satellite station feed assembly, comprising: body cavity and the cover plate be connected with described body cavity, described body cavity offers public port, and the bottom of described public port is provided with waveguide group, and the bottom of described waveguide group is provided with emission port, described public port, forms transmission channel between waveguide group and emission port, described body cavity is also provided with coupling window, first power feed hole and the second power feed hole, described coupling window is located in the adjacent chambers dignity of public port, and extend to the region of public port bottom and waveguide group composition, described first power feed hole is located on the cavity face at described coupling window place, described second power feed hole and described first power feed hole are located on different cavity faces, and connected by waveguide transmission line between described two power feed hole, described cover plate is provided with the filter cavity with the first link and the second link, described first link and the second link respectively with described coupling window, first power feed hole connects, described public port, waveguide group, coupling window, filter cavity, first power feed hole, the receive path of this satellite feed assembly is formed between waveguide transmission line and the second power feed hole.
Preferably, described waveguide group is step waveguide group, and described step waveguide group comprises at least one-level step waveguide.
Preferably, described step waveguide group comprises multi-stage stairs waveguide, and in not coaxial setting between described multi-stage stairs waveguide.
Preferably, described multi-stage stairs waveguide is reduced along the direction away from described public port.
Preferably, the axis of described coupling window is crossing with the axes normal of described emission port.
Filter cavity of the present invention also can be arranged on body cavity, and for this reason, the present invention also provides another kind of satellite station feed assembly.It comprises: body cavity and the cover plate be connected with described body cavity, described body cavity offers public port, and the bottom of described public port is provided with waveguide group, and the bottom of described waveguide group is provided with emission port, described public port, forms transmission channel between waveguide group and emission port, described body cavity is also provided with coupling window, first power feed hole, second power feed hole and there is the filter cavity of the first link and the second link, described coupling window is located in public port adjacent chambers dignity, and extend to the region of public port bottom and waveguide group composition, connected by waveguide transmission line between described two power feed hole, described first link and the second link respectively with described coupling window, first power feed hole connects, described public port, waveguide group, coupling window, filter cavity, first power feed hole, the receive path of this satellite feed assembly is formed between waveguide transmission line and the second power feed hole.
Compared with prior art, the present invention possesses following advantage:
1, the body cavity of satellite station of the present invention feed assembly adopts overall processing to be formed, dock the sending and receiving height realizing microwave radio signal to isolate transmit with the cover plate with filter cavity, whole feed modular construction is simple, volume compact, can water-proof function be realized, substantially increase product reliability energy.
2, owing to have employed the step waveguide group of the size of relative set step waveguide at different levels, microwave radio signal is being transferred to polarization rotating joint from public port through transmission channel, another branch road microwave radio signal different from required tributary signal frequency is repeatedly ended transmission, thus by the polarized signal of required branch road to separating.Satellite station of the present invention feed assembly does not need can realize good Signal Matching performance through debugging.
3, because described cover plate and described body cavity are connected to form filter, another the branch road polarized signal different from a required branch road polarized signal frequency transmitted through transmission channel and from coupling window is filtered out, therefore, satellite station of the present invention feed assembly can realize good filtering performance without the need to debugging.
4, in satellite station of the present invention feed assembly, microwave radio signal is through described body cavity public port, described step waveguide group, described coupling window, described filter cavity, the first power feed hole, waveguide transmission line and the second power feed hole, be transferred to LNB (LowNoiseBlock, tuner) time, owing to arranging the corresponding size size of each structure, by undesirable for frequency branch road polarized signal cut-off transmission, thus isolate the polarized signal of required branch road.Therefore, in above-mentioned microwave radio signals transmission, any step does not need through debugging the matching performance that can realize.
[accompanying drawing explanation]
Fig. 1 a is the structural representation of satellite station of the prior art feed assembly;
Fig. 1 b is the rearview of the satellite station feed assembly shown in Fig. 1 a;
Fig. 2 a is the end view of satellite station of the present invention feed assembly, for the ease of observing the relation of its Each part, is parallel placement by cover plate and body cavity;
Fig. 2 b is the end view in another direction of satellite station of the present invention feed assembly;
Fig. 2 c is the vertical view of satellite station of the present invention feed assembly;
Fig. 2 d is the vertical view in another direction of satellite station of the present invention feed assembly;
Fig. 2 e is the upward view of satellite station of the present invention feed assembly;
Fig. 3 a is the stereogram of the body cavity of satellite station of the present invention feed assembly;
Fig. 3 b is the cutaway view of the body cavity of satellite station of the present invention feed assembly;
Fig. 4 is the structural representation of the cover plate of satellite station of the present invention feed assembly.
[embodiment]
Be further described the present invention below in conjunction with accompanying drawing and exemplary embodiment, wherein identical in accompanying drawing label all refers to identical parts.In addition, if the detailed description of known technology is for illustrating that feature of the present invention is unnecessary, then omitted.
As shown in Fig. 2 a to Fig. 4, satellite station of the present invention feed assembly, the cover plate 2 comprising body cavity 1 and be connected with body cavity.Body cavity offers public port 3, the bottom 32 (with reference to figure 3b) of described public port 3 is provided with waveguide group 4, the bottom of described waveguide group 4 is provided with emission port 5, described public port 3, forms the transmission channel of this satellite station feed assembly between waveguide group 4 and emission port 5.The region that the bottom 32 of described public port 3 and waveguide group 4 form is provided with a coupling window 6 (with reference to figure 3b), specifically, described coupling window 6 is offered in the cavity face adjacent with public port 3, and the region that the bottom 32 that this coupling window 6 extends to public port 3 forms with described waveguide group 4.Described body cavity 1 is also provided with the first power feed hole 71 and the second power feed hole 72, described first power feed hole 71 and the second power feed hole 72 are divided in the different cavity dignity of body cavity 1, and described first power feed hole 71 is connected by waveguide transmission line (not shown) with the second power feed hole 72.
Described cover plate 2 is provided with filter cavity 8.Described filter cavity 8 has the first link 81 and the second link 82.Described first link 81 is connected with described coupling window 6, and described second link 82 is connected with described first power feed hole 71.The common shaping filter of described coupling window 6, filter cavity 8 and the first power feed hole 71.The receive path of this satellite station feed assembly is formed between described public port 3, coupling window 6, filter cavity 8, first power feed hole 71, waveguide transmission line (not shown) and the second power feed hole 72.
With reference to figure 3b, described waveguide group 4 is step waveguide group 4, is located between public port 3 and emission port 5, mates for settling signal.Described step waveguide group 4 comprises at least one-level step waveguide.Preferably, described step waveguide group 4 comprises multi-stage stairs waveguide, and in not coaxial setting between described multi-stage stairs waveguide, i.e. any two axis of described multi-stage stairs waveguide all do not overlap.Preferably, described multi-stage stairs waveguide is reduced along the direction away from public port.
Owing to have employed step waveguide group 4, microwave radio signal is when being transferred to through transmission channel polarization rotating joint (not shown) that be connected with emission port 5 from public port 3, because waveguide group is step-like, and the size of relative set step waveguide at different levels, make the polarized signal of the undesirable branch road of frequency be cut off transmission, thus isolate a branch road polarized signal of required frequency.Thus, this microwave radio signal does not need can realize good matching performance through debugging.
With reference to figure 3a and composition graphs 3b, the axis of described emission port 5 and the dead in line of described public port 3.In theory, the axis of described coupling window 6 should be crossing with the axes normal of described emission port 5.But, owing to there is the impact of various unfavorable factor in mechanical processing process, described coupling window 6 often cannot be realized also crossing with described emission port exact vertical.Therefore, in practical engineering application, allow to there is certain Physical Processing deviation.
The receive path of this satellite station feed assembly that the microwave radio signal received by described public port 3 is formed through waveguide group 4, coupling window 6, filter cavity 8, first power feed hole 71, waveguide transmission line (not shown) and the second power feed hole 72 successively, be transferred in the LNB (LowNoiseBlock, tuner) be connected with the second power feed hole 72.Because waveguide group 4 is in step-like setting, and the size of its step waveguide at different levels of relative set and emission port, this microwave radio signal is cut off with the region of described emission port 5 in described step waveguide group 4.Therefore, each link of this receive path all can realize reasonable matching performance.
The microwave radio signal emitted by described emission port 5 is ended transmission for the first time at described coupling window 6, is ended transmission for the second time at described filter place, and thus, this satellite station feed assembly can realize good sending and receiving isolation performance.Preferably, in order to strengthen the first time cut-off laser propagation effect of microwave radio signal, described coupling window 6 can be constrained to its narrow limit little as far as possible.
In satellite station of the present invention feed assembly, described body cavity 1 and described cover plate 2 are entirety and draw chamber and be processed to form, both can realize after being connected microwave radio signal transmitting, receive high degree of isolation transmission.The public port 3 of described body cavity 1, described waveguide group 4, described emission port 5, described coupling window 6, described two power feed hole (71,72) filter cavity 8 and on described cover plate 2 is all through Milling Machining and is formed, and the size of each structure aforementioned can need to arrange according to the transmission of microwave radio signal.Thus satellite station of the present invention feed assembly is except realizing the object of two kinds of orthogonal linear polarization signals matching transmission respectively under high-isolation preferably, also has good water resistance.
In addition, filter cavity 8 of the present invention also can be arranged on described body cavity 1, and two links 81,82 of described filter cavity are connected with coupling window 6, first power feed hole 71 respectively.
Satellite station of the present invention feed assembly, produces product in Ku wave band, and performance test is good, can meet market demand.
Although shown exemplary embodiments more of the present invention above, but it should be appreciated by those skilled in the art that, when not departing from principle of the present invention or spirit, can make a change these exemplary embodiments, scope of the present invention is by claim and equivalents thereof.
Claims (6)
1. a satellite station feed assembly, is characterized in that comprising: body cavity and the cover plate be connected with described body cavity, described body cavity offers public port, and the bottom of described public port is provided with waveguide group, and the bottom of described waveguide group is provided with emission port, described public port, forms transmission channel between waveguide group and emission port, described body cavity is also provided with coupling window, first power feed hole and the second power feed hole, described coupling window is located in the adjacent chambers dignity of public port, and extend to the region of public port bottom and waveguide group composition, described first power feed hole is located on the cavity face at described coupling window place, described second power feed hole and described first power feed hole are located on different cavity faces, and connected by waveguide transmission line between described two power feed hole, described cover plate is provided with the filter cavity with the first link and the second link, described first link and the second link respectively with described coupling window, first power feed hole connects, described public port, waveguide group, coupling window, filter cavity, first power feed hole, the receive path of this satellite feed assembly is formed between waveguide transmission line and the second power feed hole.
2. satellite station according to claim 1 feed assembly, is characterized in that, described waveguide group is step waveguide group, and described step waveguide group comprises at least one-level step waveguide.
3. satellite station according to claim 2 feed assembly, is characterized in that, described step waveguide group comprises multi-stage stairs waveguide, and in not coaxial setting between described multi-stage stairs waveguide.
4. satellite station according to claim 3 feed assembly, is characterized in that, described multi-stage stairs waveguide is reduced along the direction away from described public port.
5. satellite station according to claim 1 feed assembly, is characterized in that, the axis of described coupling window is crossing with the axes normal of described emission port.
6. a satellite station feed assembly, is characterized in that comprising: body cavity and the cover plate be connected with described body cavity, described body cavity offers public port, and the bottom of described public port is provided with waveguide group, and the bottom of described waveguide group is provided with emission port, described public port, forms transmission channel between waveguide group and emission port, described body cavity is also provided with coupling window, first power feed hole, second power feed hole and there is the filter cavity of the first link and the second link, described coupling window is located in public port adjacent chambers dignity, and extend to the region of public port bottom and waveguide group composition, connected by waveguide transmission line between described two power feed hole, described first link and the second link respectively with described coupling window, first power feed hole connects, described public port, waveguide group, coupling window, filter cavity, first power feed hole, the receive path of this satellite feed assembly is formed between waveguide transmission line and the second power feed hole.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310582959.6A CN103606730B (en) | 2013-11-18 | 2013-11-18 | A kind of satellite station feed assembly |
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| CN201310582959.6A CN103606730B (en) | 2013-11-18 | 2013-11-18 | A kind of satellite station feed assembly |
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| CN103606730A CN103606730A (en) | 2014-02-26 |
| CN103606730B true CN103606730B (en) | 2016-04-06 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101562280A (en) * | 2009-05-22 | 2009-10-21 | 摩比天线技术（深圳）有限公司 | Bipolar feed source device and antenna |
| CN102208716A (en) * | 2010-03-31 | 2011-10-05 | 赵铭 | Wide-angle irradiation feed source device with parasitic matched media and microwave antenna |
| US8149177B1 (en) * | 2008-05-09 | 2012-04-03 | The United States Of America As Represented By The Secretary Of The Air Force | Slotted waveguide antenna stiffened structure |
| US8482465B1 (en) * | 2010-01-10 | 2013-07-09 | Stc.Unm | Optically pumped reconfigurable antenna systems (OPRAS) |
-
2013
- 2013-11-18 CN CN201310582959.6A patent/CN103606730B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8149177B1 (en) * | 2008-05-09 | 2012-04-03 | The United States Of America As Represented By The Secretary Of The Air Force | Slotted waveguide antenna stiffened structure |
| CN101562280A (en) * | 2009-05-22 | 2009-10-21 | 摩比天线技术（深圳）有限公司 | Bipolar feed source device and antenna |
| US8482465B1 (en) * | 2010-01-10 | 2013-07-09 | Stc.Unm | Optically pumped reconfigurable antenna systems (OPRAS) |
| CN102208716A (en) * | 2010-03-31 | 2011-10-05 | 赵铭 | Wide-angle irradiation feed source device with parasitic matched media and microwave antenna |
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| CN103606730A (en) | 2014-02-26 |
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Effective date of registration: 20190107 Address after: 210000 Room 201, 2nd Floor, Building B, Building 3, Baixia High-tech Industrial Park, No. 8 Yongfeng Avenue, Qinhuai District, Nanjing, Jiangsu Province Patentee after: Nanjing Jingdi Communication Equipment Co., Ltd. Address before: 510663 No. 10 Shenzhou Road, Guangzhou Science City, Guangdong Province Patentee before: Comba Telecom System (China) Co., Ltd. |
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