Multi-frequency OMT system

Abstract

A multi-frequency OMT system comprises an OMT, the upper portion of the OMT comprises an OMT input end, and the lower portion of the OMT comprises a first output end and a second output end. The first duplexer is positioned below the OMT, the upper part of the first duplexer comprises a first input end, the lower part of the first duplexer comprises a first high-frequency output end and a first low-frequency output end, and the first output end is connected with the first input end; the second duplexer is located below the OMT, the upper portion of the second duplexer comprises a second input end, the lower portion of the second duplexer comprises a second high-frequency output end and a second low-frequency output end, and the second output end is connected with the second input end. Through reasonable arrangement of component structures and frequency division of dual-polarized antenna signals, the purpose that a pair of antennas of a single-hop link perform four-group transceiving at the same time is achieved, meanwhile, high-power and high-capacity communication technology requirements are met, spectrum resources and iron tower resources are saved, the utilization rate of microwave antennas is increased, and the cost is reduced. And the method is suitable for mass production.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the microwave communication technical field, concretely relates to a multi-frequency OMT system. BACKGROUND

[0002] With the increasingly developed microwave communication technology, under the premise of pursuing the communication technology field of large power, large capacity and increasingly scarce spectrum resources and tower resources, how to improve the utilization rate of microwave antenna becomes the problem that each manufacturer urgently needs to solve. SUMMARY

[0003] In view of the above problem, the utility model aims at providing a multi-frequency OMT system, and solves the technical problem of low microwave antenna utilization rate.

[0004] To achieve the above object, the utility model adopts the technical scheme including:

[0005] A multi-frequency OMT system, including OMT, the upper part of OMT includes OMT input end, the lower part of OMT includes first output end and second output end, still including the first diplexer under OMT, the upper part of first diplexer includes first input end, the lower part of first diplexer includes first high frequency output end and first low frequency output end, and first output end is connected with first input end, still including the second diplexer under OMT, the upper part of second diplexer includes second input end, the lower part of second diplexer includes second high frequency output end and second low frequency output end, and second output end is connected with second input end.

[0006] Preferably, the first output end is a vertical signal output end, and the second output end is a horizontal signal output end.

[0007] Preferably, the output signal of the first high frequency output end ranges from 10 to 11.7 GHz, and the output signal of the first low frequency output end ranges from 7.125 to 8.5 GHz.

[0008] Preferably, the output signal of the second high frequency output end ranges from 10 to 11.7 GHz, and the output signal of the second low frequency output end ranges from 7.125 to 8.5 GHz.

[0009] Preferably, the first diplexer and the second diplexer are the same structure and are connected side by side.

[0010] Preferably, the utility model further includes a shell fixed above the connecting surface of the first diplexer and the second diplexer, the OMT is located in the inner cavity of the shell, and the OMT input end penetrates out of the shell and is located above the shell.

[0011] Compared with the prior art, the utility model has the advantages of:

[0012] (1) The multi-frequency OMT system of the utility model, through reasonable setting of component structure, whole through frequency division to dual-polarized antenna signal, realize the purpose that one pair of antennas of one-hop link simultaneously carry out four groups of transceiving, satisfy the communication technology demand of high power and large capacity at the same time, save spectrum resource and iron tower resource, improve the utilization rate of microwave antenna, can be more applicable to mass production.

[0013] (2) The multi-frequency OMT system of the utility model, whole structure is exquisite, material is simple, convenient processing and assembling, solid and durable, reliability is high, have very strong practicality and saved a large amount of cost. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with the following specific embodiments, but do not constitute the limitation to the utility model.In the drawings:

[0015] Figure 1 It is the structure schematic view of the multi-frequency OMT system of the utility model;

[0016] Figure 2 It is the structure schematic view of the OMT in the middle; Figure 1

[0017] Figure 3 It is the structure schematic view of the first diplexer and the second diplexer in the middle; Figure 1

[0018] The various reference signs in the drawings represent:

[0019] 1-shell, 2-OMT, 3-first diplexer, 4-second diplexer

[0020] 2a-OMT input end, 2b-first output end, 2c-second output end;

[0021] 3a-first input end, 3b-first high-frequency output end, 3c-first low-frequency output end;

[0022] 4a-second input end, 4b-second high-frequency output end, 4c-second low-frequency output end. SPECIFIC EMBODIMENTS

[0023] The utility model is not limited to the following specific embodiments, and any equivalent transformation based on the technical scheme of the present application falls within the protection scope of the utility model.

[0024] ​​It should be noted that the directional terms mentioned herein, such as "cavity", "upper", "upper", etc. are consistent with the specific direction of the paper or the corresponding direction of the space shown in the drawing; all components and devices in the utility model, such as no special description, all use known components and devices in the prior art.

[0025] Embodiment

[0026] The embodiment discloses a multi-frequency OMT system, comprising an OMT2, the upper part of the OMT2 comprising an OMT input end 2a, the lower part of the OMT2 comprising a first output end 2b and a second output end 2c; further comprising a first duplexer 3 located below the OMT2, the upper part of the first duplexer 3 comprising a first input end 3a, the lower part of the first duplexer 3 comprising a first high-frequency output end 3b and a first low-frequency output end 3c, the first output end 2b being connected with the first input end 3a; further comprising a second duplexer 4 located below the OMT2, the upper part of the second duplexer 4 comprising a second input end 4a, the lower part of the second duplexer 4 comprising a second high-frequency output end 4b and a second low-frequency output end 4c, the second output end 2c being connected with the second input end 4a;

[0027] The OMT input end 2a of the OMT2 serves as the input port of the system, for receiving the vertical polarization signal and the horizontal polarization signal of the antenna feed source, the first output end 2b and the second output end 2c of the OMT2 have extremely high isolation, which can ensure that the two signals do not interfere with each other, the vertical polarization signal is received through the first input end 3a of the first duplexer 3, and the vertical polarization high-frequency signal and the vertical polarization low-frequency signal are separated and output respectively through the first high-frequency output end 3b and the first low-frequency output end 3c of the first duplexer 3, at the same time, the horizontal polarization signal is received through the second input end 4a of the second duplexer 4, and the horizontal polarization high-frequency signal and the horizontal polarization low-frequency signal are separated and output respectively through the second high-frequency output end 4b and the second low-frequency output end 4c of the second duplexer 4; the whole realizes the purpose of four groups of receiving and transmitting of one pair of antennas of one-hop link through frequency division of dual-polarized antenna signals, at the same time, the communication technology demand of large power and large capacity is met, the spectrum resources and the tower resources are saved, the utilization rate of the microwave antenna is improved, and the mass production is more applicable.

[0028] The first output end 2b disclosed in the embodiment is a vertical signal output end, and the second output end 2c is a horizontal signal output end. The first output end 2b and the second output end 2c are completely orthogonal, which can maximize the cross-polarization discrimination rate of the antenna.

[0029] The output signal of the first high frequency output end 3b ranges from 10 to 11.7 GHz, and the output signal of the first low frequency output end 3c ranges from 7.125 to 8.5 GHz. The output signal of the second high frequency output end 4b ranges from 10 to 11.7 GHz, and the output signal of the second low frequency output end 4c ranges from 7.125 to 8.5 GHz.

[0030] The high pass filter and the low pass filter in the first duplexer 3 are respectively composed of a plurality of waveguides, so that the out-of-band rejection of the filter can be greatly improved. The first duplexer 3 and the second duplexer 4 are connected side by side and have the same structure. The connection of the first duplexer 3 and the second duplexer 4 is only the connection of the shells, and the internal signals are independent of each other.

[0031] The first duplexer 3 and the second duplexer 4 are connected side by side and have the same structure. The connection of the first duplexer 3 and the second duplexer 4 is only the connection of the shells, and the internal signals are independent of each other.

[0032] The preferred embodiments of the present disclosure are described in detail above with reference to the drawings, but the present disclosure is not limited to the specific details in the above-described embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

[0033] In addition, it should be noted that each specific technical feature described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0034] In addition, the various different embodiments disclosed in the present solution can also be combined in any manner, as long as they do not deviate from the idea of the present disclosure, and they should also be considered as the contents invented by the present disclosure.

Claims

1. A multi-frequency OMT system, characterized in that, The OMT (2) includes an OMT input end (2a) in the upper part and a first output end (2b) and a second output end (2c) in the lower part; The first duplexer (3) is further arranged below the OMT (2), which includes a first input end (3a) in the upper part and a first high-frequency output end (3b) and a first low-frequency output end (3c) in the lower part, and the first output end (2b) is connected with the first input end (3a); The second duplexer (4) is further arranged below the OMT (2), which includes a second input end (4a) in the upper part and a second high-frequency output end (4b) and a second low-frequency output end (4c) in the lower part, and the second output end (2c) is connected with the second input end (4a).

2. The multi-frequency OMT system of claim 1, wherein, The first output end (2b) is a vertical signal output end, and the second output end (2c) is a horizontal signal output end.

3. The multi-frequency OMT system of claim 2, wherein, The output signal of the first high-frequency output end (3b) ranges from 10 to 11.7 GHz, and the output signal of the first low-frequency output end (3c) ranges from 7.125 to 8.5 GHz.

4. The multi-frequency OMT system of claim 2, wherein, The output signal of the second high-frequency output end (4b) ranges from 10 to 11.7 GHz, and the output signal of the second low-frequency output end (4c) ranges from 7.125 to 8.5 GHz.

5. The multi-frequency OMT system of any one of claims 1-4, wherein, The first duplexer (3) and the second duplexer (4) are structurally identical and connected side by side.

6. The multi-frequency OMT system of claim 5, wherein, The housing (1) is further arranged above the connecting surface of the first duplexer (3) and the second duplexer (4), the OMT (2) is arranged in the inner cavity of the housing (1), and the OMT input end (2a) penetrates through the housing (1) and is arranged above the housing (1).

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