Broadband polarization separator
By designing a broadband polarization separator including a common circular waveguide, a turntable connector and a signal synthesizer, the problem of insufficient frequency bands and insufficient performance in the prior art is solved, and multi-frequency of multiple adjacent frequency bands is realized Work and bipolarization significantly reduce system costs.
Patent Information
- Application Number
- CN202420280189.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-05
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-02-05
AI Technical Summary
The polarized separator frequency band in existing microwave relay communications is not wide enough and the performance is not high enough, making it difficult to meet the needs of multi-band signal transmission and reception.
Design a broadband polarization separator including a common circular waveguide, a turntable connector and a signal synthesizer. Connect the turntable connector through a common circular waveguide, and set up a matching table inside the turntable connector, and the signal is passed through a rectangular coupled waveguide port. Perform polarization separation and synthesis, and the output is a standard rectangular waveguide to realize multi-frequency operation and dual-polarization of multiple adjacent frequency bands.
It achieves the improvement of bandwidth and performance, meets the index requirements of microwave relay communication for broadband polarization separators, and significantly reduces system costs.
Smart Images
Figure CN222365735U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of relay communication, in particular to a broadband polarization separator. Background Art
[0002] Microwave devices are often used in microwave relay communications, and they are required to be debugging-free, wide-band, and high-performance. Polarization separators are one of them, and there is a large demand for them, so we need a polarization separator that is easy to integrate, has a wide bandwidth, high performance, is debugging-free, and has high reliability. With the increase in communication spectrum resources, dual-frequency and multi-frequency shared antennas can use one antenna for multiple frequency bands with little increase in cost, which can significantly reduce system costs and land resources. At present, multi-band integrated feed sources have been realized in the market, and the microwave devices used with them need to keep up with their pace and further improve the bandwidth and performance to use a parabolic antenna to realize multi-band signal transceiver functions.
[0003] However, the existing technology has problems such as insufficient bandwidth and poor performance.
[0004] In summary, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content
[0005] In view of the above-mentioned defects, the purpose of the present invention is to provide a broadband polarization separator to solve the multi-frequency operation of multiple adjacent frequency bands and realize dual polarization.
[0006] In order to achieve the above-mentioned purpose, the utility model provides a broadband polarization separator, comprising a common circular waveguide, a turnstile joint and at least two signal synthesizers, wherein one end of the common circular waveguide is connected to the turnstile joint, a matching platform is provided at the center of the turnstile joint, an E-plane bent waveguide component is connected between the rectangular coupling waveguide port of the turnstile joint and one end of the two signal synthesizers, and the other ends of the two signal synthesizers are respectively connected to rectangular transition waveguides.
[0007] According to the broadband polarization separator described in the utility model, it also includes an input port and at least two output ports, one end of the common circular waveguide is the input port, and the two output ports are respectively connected to the rectangular transition waveguide.
[0008] According to the broadband polarization separator of the utility model, the output port is a standard rectangular waveguide port.
[0009] According to the broadband polarization separator of the utility model, the diameter of the common circular waveguide is 13.5 mm.
[0010] According to the broadband polarization separator of the utility model, the operating frequency band of the separator is 14.4 GHz to 23.6 GHz.
[0011] According to the broadband polarization separator of the utility model, the matching platform material is metal.
[0012] According to the broadband polarization separator of the utility model, the rectangular coupling waveguide ports of the turnstile joint are at least four rectangular coupling waveguide ports.
[0013] The utility model provides a broadband polarization separator, including a common circular waveguide, a cross-turntable joint and at least two signal synthesizers. The common circular waveguide is connected to the cross-turntable joint. A matching station is arranged in the middle of the cross-turntable joint. The signal enters the cross-special joint through the common circular waveguide and is coupled into two of the four rectangular coupling waveguide ports of the cross-turntable joint under the matching of the matching station to achieve polarization separation. The rectangular coupling waveguide ports of the cross-turntable joint are respectively connected to an E-surface curved waveguide component between one end of the two signal synthesizers, and two signals of the same polarization are synthesized into one signal. Preferably, the other ends of the two signal synthesizers are respectively connected to rectangular transition waveguides to form a standard rectangular waveguide port. Thus, the broadband polarization separator of the utility model can solve the multi-frequency operation of multiple adjacent frequency bands and realize dual polarization. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of the broadband polarization separator provided by the utility model. DETAILED DESCRIPTION
[0015] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0016] like Figure 1As shown, the utility model provides a broadband polarization separator 100, including a common circular waveguide 1, a turnstile joint 2 and two signal synthesizers 3, wherein one end of the common circular waveguide 1 is connected to the turnstile joint 2, a matching platform is provided at the center of the turnstile joint 2, the matching platform is located at the center of the turnstile joint 2, the turnstile joint 2 is provided with four rectangular coupling waveguide ports, the four rectangular coupling waveguide ports include two vertically polarized rectangular coupling waveguide ports and two horizontally polarized coupling waveguide ports, a signal enters the turnstile joint 2 through the common circular waveguide 1, and the signal is coupled under the matching of the matching platform, specifically, the signal enters the two vertically polarized rectangular coupling waveguide ports or the two horizontally polarized coupling waveguide ports of the four rectangular coupling waveguide ports of the turnstile joint 2, and when the signal is vertically polarized, the signal enters The signal enters two vertically polarized rectangular coupled waveguide ports corresponding to the vertical polarization. When the signal is horizontally polarized, the signal enters two horizontally polarized coupled waveguide ports corresponding to the horizontal polarization, thereby realizing the polarization separation of the signal. The rectangular coupled waveguide ports of the turnstile joint 2 are respectively connected to one end of the two signal synthesizers 3 by an E-plane bent waveguide component 4. The two vertically polarized rectangular coupled waveguide ports and the two horizontally polarized coupled waveguide ports are respectively connected to one end of the two signal synthesizers 3 by two E-plane bent waveguide components 4. Two signals of the same polarization are synthesized into one signal to realize dual polarization. The other ends of the two signal synthesizers 3 are respectively connected to rectangular transition waveguides 5. The synthesized signal passes through the rectangular transition waveguide 5 to make the signal output port 7 a standard rectangular waveguide port 7. The standard rectangular waveguide port 7 is used to connect with other devices.
[0017] Thus, a broadband polarization separator 100 of the present invention can solve the problem of multi-frequency operation in multiple adjacent frequency bands and realize polarization separation.
[0018] Preferably, it also includes an input port 6 and at least two output ports 7, one end of the common circular waveguide 1 is the input port 6, the signal enters the common circular waveguide 1 from the input port 6, the two output ports 7 are respectively connected to the rectangular transition waveguide 5, and the signal is output from the two output ports 7.
[0019] Preferably, the output port 7 is a standard rectangular waveguide port 7 , which is used to connect to other devices, and the model of the standard rectangular waveguide port 7 is BJ180 standard rectangular waveguide port 7 .
[0020] Preferably, the diameter of the common circular waveguide 1 is 13.5 mm.
[0021] Preferably, the operating frequency band of the separator 100 is 14.4 GHz to 23.6 GHz, the relative bandwidth of the separator 100 reaches 48%, and the standing wave is less than 1.18, which meets the index requirements of the broadband polarization separator 100 for microwave relay communication.
[0022] Preferably, the matching platform is made of metal.
[0023] Preferably, the rectangular coupled waveguide ports of the turnstile joint 2 are at least four rectangular coupled waveguide ports, and the four rectangular coupled waveguide ports include two vertically polarized rectangular coupled waveguide ports and two horizontally polarized coupled waveguide ports. The signal enters the turnstile joint 2 through the common circular waveguide 1. Under the matching of the matching station, the signal is coupled into the two vertically polarized rectangular coupled waveguide ports or the two horizontally polarized coupled waveguide ports among the four rectangular coupled waveguide ports of the turnstile joint 2. When the signal is vertically polarized, the signal enters the two vertically polarized rectangular coupled waveguide ports corresponding to the vertical polarization. When the signal is horizontally polarized, the signal enters the two horizontally polarized coupled waveguide ports corresponding to the horizontal polarization, thereby realizing polarization separation of the signal.
[0024] In summary, the utility model provides a broadband polarization separator, including a common circular waveguide, a turnstile joint and at least two signal synthesizers. The common circular waveguide is connected to the turnstile joint, and a matching station is arranged in the middle of the turnstile joint. The signal enters the cross special joint through the common circular waveguide and is coupled into two of the four rectangular coupling waveguide ports of the turnstile joint under the matching of the matching station to achieve polarization separation. The rectangular coupling waveguide ports of the turnstile joint are respectively connected to one end of the two signal synthesizers to form an E-surface curved waveguide assembly, and two signals of the same polarization are synthesized into one signal. Preferably, the other ends of the two signal synthesizers are respectively connected to rectangular transition waveguides to form standard rectangular waveguide ports. By this, the broadband polarization separator of the utility model can solve the multi-frequency operation of multiple adjacent frequency bands and realize dual polarization.
[0025] Of course, the above embodiment is only a preferred implementation mode of the utility model. The utility model may also have many other embodiments. Without departing from the spirit and essence of the utility model, technicians familiar with the field can make various corresponding changes and deformations according to the utility model, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the utility model.
Claims
1. A broadband polarization separator, characterized in that: The invention comprises a common circular waveguide, a turnstile joint and at least two signal synthesizers, wherein one end of the common circular waveguide is connected to the turnstile joint, a matching platform is arranged at the inner center of the turnstile joint, an E-surface bending waveguide component is connected between the rectangular coupling waveguide port of the turnstile joint and one end of the two signal synthesizers respectively, and the other ends of the two signal synthesizers are respectively connected to rectangular transition waveguides.
2. The broadband polarization separator according to claim 1, characterized in that: It also includes an input port and at least two output ports, one end of the common circular waveguide is the input port, and the two output ports are respectively connected to the rectangular transition waveguide.
3. The broadband polarization separator according to claim 2, characterized in that: The output port is a standard rectangular waveguide port.
4. The broadband polarization separator according to claim 1, characterized in that: The diameter of the common circular waveguide is 13.5 mm.
5. The broadband polarization separator according to claim 1, characterized in that: The operating frequency band of the separator is 14.4 GHz to 23.6 GHz.
6. The broadband polarization separator according to claim 1, characterized in that: The matching platform is made of metal.
7. The broadband polarization separator according to claim 1, characterized in that: The rectangular coupling waveguide ports of the turnstile joint are at least four rectangular coupling waveguide ports.