Waveguide switching device and assembly of Ka-Ku transceiver assembly
By designing a waveguide switching device for Ka-Ku transceiver components, flexible switching between Ka/Ku frequency bands was achieved, solving the problems of complex equipment, high cost, and cumbersome operation in existing technologies, and providing portability and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JIANGSU WEILAI COMMUNICATION TECHNOLOGY CO LTD
- Filing Date
- 2026-03-30
- Publication Date
- 2026-05-12
AI Technical Summary
Existing satellite ground terminals suffer from problems such as complex equipment, high cost, large size, cumbersome operation, and easy damage when switching between Ku and Ka bands, making them particularly unsuitable for use with portable devices.
Design a waveguide switching device for Ka-Ku transceiver components. The switching device body is fixedly connected to the Ka and Ku transceiver components. Frequency band switching is achieved by only replacing the feed source, avoiding the need to replace the entire feed source component. Square and circular waveguide structures are used for signal separation and transmission.
It enables flexible switching between Ka/Ku bands, and the device is compact, low-cost, and easy to operate, ensuring the stability and security of satellite communication terminals and reducing operational complexity and the risk of equipment damage.
Smart Images
Figure CN122026035A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of satellite communication technology, and in particular to a Ka-Ku transceiver waveguide switching device and component. Background Technology
[0002] Satellite ground terminals need to communicate with satellites via feedhorns and transceiver modules (TR modules). Currently, there is an increasing demand for Ku / Ka compatibility for satellite ground terminals; in the absence of Ka satellites, communication via Ku satellites is the primary industry requirement.
[0003] The known solution is to use a dual-band feed design in the satellite ground terminal, which means equipping the satellite ground terminal with a feed that supports both Ka and Ku bands, so that it can function as either a Ka or Ku feed. However, this type of feed has a complex structure, high cost, and large size, making it unsuitable for use with portable devices.
[0004] In addition, other known solutions include using a dual-planar array Ku / Ka antenna for on-the-move communication or using a lens antenna to support multi-band transmission and reception, but these solutions are all relatively expensive.
[0005] Therefore, the common method for Ku / Ka band compatible transceiver antennas is to operate them by replacing the feed assembly, that is, replacing the entire feed and transceiver components, such as... Figure 1 As shown. However, repeatedly disassembling different feed sources requires replacing the appropriate cables, which is cumbersome, has low switching efficiency, and frequent operation can easily damage the components and facilities. Summary of the Invention
[0006] The purpose of this invention is to provide a Ka-Ku transceiver waveguide switching device and assembly to address all or part of the problems mentioned above, thereby solving the problem of fast switching of Ku / Ka feed assemblies in a low-cost manner.
[0007] The technical solution adopted in this invention is as follows: A Ka-Ku transceiver waveguide switching device, comprising: The switching device body; A common port is provided on the switching device body; the common port is used to connect a Ka feed source or a Ku feed source. The Ka-band port is disposed on the switching device body and is connected to the common port through a first waveguide structure; the Ka-band port is used for fixed connection with the Ka transceiver component. The Ku-band port is located on the switching device body and is connected to the common port through a second waveguide structure; the Ku-band port is used for fixed connection with the Ku transceiver component.
[0008] Optionally, the common port includes a port base, a square waveguide port, and a circular waveguide port; The square waveguide port is connected to the first waveguide structure; The circular waveguide port is connected to the second waveguide structure; The port base is used to connect the Ka feed or the Ku feed, and when connecting the Ka feed, the circular waveguide port is blocked by the Ka feed; when connecting the Ku feed, the square waveguide port is blocked by the Ku feed.
[0009] Optionally, the square waveguide port includes a first square waveguide port and a second square waveguide port; the Ka-band port includes a first Ka-band port and a second Ka-band port; The first waveguide structure includes a first Ka waveguide and a second Ka waveguide; The first Ka-band waveguide includes a first square waveguide, a first stepped waveguide, and a first serpentine waveguide connected in sequence; the first square waveguide is connected to the first square waveguide port; the first serpentine waveguide is connected to the first Ka-band port. The second Ka-band waveguide includes a second square waveguide, a second stepped waveguide, and a second serpentine waveguide connected in sequence; the second square waveguide is connected to the port of the second square waveguide; the second serpentine waveguide is connected to the port of the second Ka-band.
[0010] Optionally, the first Ka-band port and the second Ka-band port are located on the same side of the switching device body; the first square waveguide port and the second square waveguide port are centrally symmetrical about the center of the circular waveguide port; the first Ka waveguide and the second Ka waveguide are mutually symmetrical.
[0011] Optionally, the Ku-band port includes a first Ku-band port and a second Ku-band port; The second waveguide structure includes a circular waveguide, a third stepped gradient waveguide, a first Ku waveguide, and a second Ku waveguide; The circular waveguide is connected to the circular waveguide port; The third-step gradient waveguide is connected to the circular waveguide; The first Ku waveguide is connected to the third stepped gradient waveguide and is also connected to the first Ku band port; The second Ku waveguide is connected to the third stepped gradient waveguide and to the second Ku band port.
[0012] Optionally, the third stepped gradient waveguide includes a first stepped side and a second stepped side arranged opposite to each other, the first stepped side and the second stepped side being symmetrical to each other; the top of the third stepped gradient waveguide is connected to the circular waveguide, the bottom of the third stepped gradient waveguide is connected to the second Ku waveguide, and the first Ku waveguide is connected to the first stepped side.
[0013] Optionally, the first Ku-band port and the second Ku-band port are located on the same side of the switching device body; The first Ku waveguide includes a fourth stepped gradient waveguide and a third-shaped waveguide that are interconnected. The fourth stepped gradient waveguide is connected to the side of the first stepped waveguide, and the third-shaped waveguide is connected to the first Ku band port. The second Ku waveguide includes a fifth stepped gradient waveguide and a fourth square waveguide that are interconnected. The fifth stepped gradient waveguide is connected to the bottom of the third stepped gradient waveguide, and the fourth square waveguide is connected to the second Ku band port.
[0014] Optionally, a matching waveguide is provided on the second step side of the third step gradient waveguide; the matching waveguide is disposed opposite to the first Ku waveguide.
[0015] This application also provides a Ka-Ku transceiver waveguide switching assembly, which includes the aforementioned Ka-Ku transceiver waveguide switching device, and, Ka feed; Ku feed source; Both the Ka feed and the Ku feed are matched with the common port.
[0016] Optionally, the Ka feed includes a Ka radiating surface, a Ka transition waveguide, and a Ka mounting base connected in sequence; the Ku feed includes a Ku radiating surface, a Ku transition waveguide, and a Ku mounting base connected in sequence. The Ka mounting base is designed such that when connected to the common port, the Ka transition waveguide is connected to the first waveguide structure, while simultaneously shielding the second waveguide structure; The Ku mounting base is designed such that, when connected to the common port, the Ku transition waveguide is connected to the second waveguide structure, while simultaneously shielding the first waveguide structure.
[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: This application designs a waveguide switching device for Ka-Ku transceiver components. The device body is fixedly connected to both Ka and Ku transceiver components. Flexible switching between the two frequency bands is achieved by changing the feed source (either a Ku or Ka feed source) at the front end (common port). This eliminates the need for complex, costly, and bulky dual-frequency feed source designs, as well as the need to replace the entire feed source assembly. It achieves Ka-band and Ku-band transceiver compatibility with low manufacturing costs and convenient, quick operation. The device has a compact overall structure, high portability, and low cost. The switching operation only requires replacing the feed source and does not involve operation of the transceiver components, ensuring the long-term stability and security of the satellite communication terminal. Attached Figure Description
[0018] The present invention will be described by way of example and with reference to the accompanying drawings, wherein: Figure 1 This is a structural diagram of the feed component for the overall feed method.
[0019] Figure 2 This is an application schematic diagram of the Ka-Ku transceiver waveguide switching component provided in this application.
[0020] Figure 3 This is a structural diagram of the waveguide switching device for the Ka-Ku transceiver module.
[0021] Figure 4 This is a top view of the waveguide switching device for the Ka-Ku transceiver module.
[0022] Figure 5 This is a diagram of the internal structure of the waveguide switching device for the Ka-Ku transceiver module.
[0023] Figure 6 This is a side view of the waveguide switching device of the Ka-Ku transceiver module.
[0024] Figure 7 yes Figure 5 An oblique view of the embodiment.
[0025] Figure 8 This is a rearward side view of the first waveguide structure.
[0026] Figure 9 This is a frontal side view of the first waveguide structure.
[0027] Figure 10 This is a construction diagram of the second waveguide structure.
[0028] Figure 11 This is an exploded view of the second waveguide structure.
[0029] Figure 12 This is a diagram showing the construction of a Ka-Ku transceiver waveguide switching device that connects two types of feed sources.
[0030] Figure 13 These are the structural diagram and cross-sectional view of the Ka feed source.
[0031] Figure 14 These are the structural diagram and cross-sectional view of the Ku feed source.
[0032] Figure 15 This is a schematic diagram of the dimensions of a Ka-Ku transceiver waveguide switching device in a test case.
[0033] Figure 16 This is a left-hand gain test diagram in the Ka band.
[0034] Figure 17 This is a right-hand gain test diagram in the Ka band.
[0035] Figure 18 This is a high-frequency gain test diagram in the Ku band.
[0036] Figure 19 This is a low-frequency gain test diagram for the Ku band.
[0037] In the diagram, 1-Common port; 10-Switching device body; 11-Square waveguide port; 111-First square waveguide port; 112-Second square waveguide port; 12-Circular waveguide port; 13-Port base; 14-Component connection part; 2-Ku band port; 21-First Ku band port; 22-Second Ku band port; 3-Ka band port; 31-First Ka band port; 32-Second Ka band port; 4-First waveguide structure; 41-First Ka waveguide; 411-First square waveguide; 412-First stepped waveguide; 413-First serpentine waveguide; 42-Second Ka waveguide; 421-Second square waveguide; 422 - Second stepped gradient waveguide; 423- Second serpentine waveguide; 5- Second waveguide structure; 51- Circular waveguide; 52- Third stepped gradient waveguide; 521- First stepped sidewall; 522- Second stepped sidewall; 523- Matching waveguide; 53- First Ku waveguide; 531- Fourth stepped gradient waveguide; 532- Third square waveguide; 54- Second Ku waveguide; 541- Fifth stepped gradient waveguide; 542- Fourth square waveguide; 6- Ka feed; 61- Ka radiating surface; 62- Ka transition waveguide; 63- Ka mount; 7- Ku feed; 71- Ku radiating surface; 72- Ku transition waveguide; 73- Ku mount. Detailed Implementation
[0038] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.
[0039] Any feature disclosed in this specification (including any appended claims and abstract) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.
[0040] To address the requirement for Ka / Ku dual-frequency compatibility, this application proposes a Ka-Ku transceiver waveguide switching device, and based on this, a Ka-Ku transceiver waveguide switching component, such as... Figure 2 As shown, the Ka-Ku transceiver waveguide switching device connects both the Ka and Ku transceiver components simultaneously, and connects or switches the Ka feed 6 and Ku feed 7 in a single operation, achieving low-cost, high-efficiency, high-convenience, and high-security switching of dual-band transceiver in the Ka / Ku co-feed system.
[0041] like Figures 3-11 As shown, the Ka-Ku transceiver waveguide switching device proposed in this application includes: (1) Switching device body 10.
[0042] The switching device body 10 is a supporting component of the Ka-Ku transceiver waveguide switching device, which is used to connect the Ku feed 7 / Ka feed 6 and the Ku transceiver and Ka transceiver respectively.
[0043] (2) Public port 1.
[0044] Specifically, such as Figure 3 As shown, the switching device body 10 is provided with a common port 1, which is used to connect to either the Ka feed 6 or the Ku feed 7. The common port 1 can only connect to one feed at a time, so there is no need for a dual feed structure design.
[0045] Common port 1 needs to support both Ka feed 6 and Ku feed 7 simultaneously. As an optional implementation, such as... Figure 4 As shown, the common port 1 includes a port base 13, a square waveguide port 11, and a circular waveguide port 12.
[0046] The square waveguide port 11 is used to connect Ka-band signals.
[0047] The circular waveguide port 12 is used to connect Ku-band signals.
[0048] The port base 13 is used to connect the Ka feed 6 or the Ku feed 7 to facilitate the installation and fixation of the Ka feed 6 or the Ku feed 7. In one specific embodiment, the port base 13 is designed as a columnar structure, and its dimensions match the mounting bases at the bottom of the Ka feed 6 and the Ku feed 7.
[0049] Furthermore, since the Ka and Ku bands operate asynchronously, when connecting to Ka feed 6, it is necessary to prevent signals from entering the Ku transceiver component, and when connecting to Ku feed 7, it is necessary to prevent signals from entering the Ka transceiver component. Therefore, for the design of port base 13, when connecting to Ka feed 6, the circular waveguide port 12 is shielded by Ka feed 6; when connecting to Ku feed 7, the square waveguide port 11 is shielded by Ku feed 7. This ensures that only one set of feed components operates at a time, avoiding system confusion.
[0050] (3) Ka band port 3 and Ku band port 2.
[0051] like Figure 3 , Figure 6 As shown, the switching device body 10 is also provided with a Ka band port 3 and a Ku band port 2, which are used to be fixedly connected to the Ka transceiver component and the Ku transceiver component respectively during use.
[0052] Specifically, such as Figure 5 As shown, Ka-band port 3 is connected to common port 1 through the first waveguide structure 4, and Ku-band port 2 is connected to common port 1 through the second waveguide structure 5.
[0053] Similar to the design of the above embodiments, the common port 1 is connected to the Ka-band signal and the Ku-band signal through the square waveguide port 11 and the circular waveguide port 12 respectively. In this optional embodiment, the first waveguide structure 4 is connected to the square waveguide port 11 and the second waveguide structure 5 is connected to the circular waveguide port 12.
[0054] like Figure 5 , Figure 6 As shown, the first waveguide structure 4 and the second waveguide structure 5 are both disposed inside the switching device body 10. For example, assume that the switching device body 10 includes a feed connection part and a component connection part 14; the common port 1 is disposed in the feed connection part, while the first waveguide structure 4, the second waveguide structure 5, the Ka band port 3 and the Ku band port 2 are all disposed in the component connection part 14.
[0055] To adapt to the requirements of dual-polarization communication, such as Figures 6-9 As shown, in one optional embodiment, the square waveguide port 11 for accessing Ka-band signals includes a first square waveguide port 111 and a second square waveguide port 112. The two square waveguide ports 11 are used to access left-hand circularly polarized signals and right-hand circularly polarized signals, respectively. Correspondingly, the Ka-band port 3 includes a first Ka-band port 31 and a second Ka-band port 32. The first Ka-band port 31 corresponds to the first square waveguide port 111, and the second Ka-band port 32 corresponds to the second square waveguide port 112.
[0056] Corresponding to the design of the two-sided waveguide port 111 and the dual Ka-band port 3, the aforementioned first waveguide structure 4 includes a first Ka waveguide 41 and a second Ka waveguide 42. The first Ka waveguide 41 is connected between the first square waveguide port 111 and the first Ka-band port 31, and the second Ka waveguide 42 is connected between the second square waveguide port 112 and the second Ka-band port 32.
[0057] Specifically, such as Figure 8 , Figure 9 As shown, the first Ka-band waveguide 41 includes a first square waveguide 411, a first stepped waveguide 412, and a first serpentine waveguide 413 connected in sequence. The first square waveguide 411 is connected to the first square waveguide port 111. The first serpentine waveguide 413 is connected to the first Ka-band port 31.
[0058] The second Ka-band waveguide 42 includes a second square waveguide 421, a second stepped waveguide 422, and a second serpentine waveguide 423 connected in sequence. The second square waveguide 421 is connected to the second square waveguide port 112. The second serpentine waveguide 423 is connected to the second Ka-band port 32.
[0059] The Ka-band signal received from Ka feed 6 is processed by left-hand circular polarization. The left-hand circular polarization signal / right-hand circular polarization signal enters the first square waveguide 411 / second square waveguide 421 through the first square waveguide port 111 / second square waveguide port 112. After impedance matching / bandwidth optimization / mode conversion by the first stepped gradient waveguide 412 / second stepped gradient waveguide 422, the signal is directionally guided by the first serpentine waveguide 413 / second serpentine waveguide 423 and then output from the first Ka-band port 31 / second Ka-band port 32.
[0060] To facilitate centralized connection and wiring of the Ka transceiver components, in one optional embodiment, the first Ka band port 31 and the second Ka band port 32 are located on the same side of the switching device body 10, such as... Figure 6 As shown. Furthermore, the first square waveguide port 111 and the second square waveguide port 112 are designed to be centrally symmetrical about the center of the circular waveguide port 12, as shown. Figure 4 As shown, this design facilitates the structural design of the Ka feed 6, reducing design complexity, and also allows for the staggered design of the first waveguide structure 4 and the second waveguide structure 5, improving the compactness of the device structure and reducing its size. Furthermore, as... Figures 7-9 As shown, the first Ka waveguide 41 and the second Ka waveguide 42 are symmetrical to each other, which on the one hand ensures the synchronization of the dual circularly polarized signals, and on the other hand can effectively reduce the processing and planning complexity of the waveguide structure.
[0061] Similarly, for Ku-band signals, in order to adapt to the requirements of dual-polarization communication, such as Figure 6As shown, Ku-band port 2 includes a first Ku-band port 21 and a second Ku-band port 22. The second waveguide structure 5 performs dual-polarization processing on the received Ku-band signal, converting the orthogonal TE signals... 10 Mode signal and TE 01 The mode signals are separated to the first Ku band port 21 and the second Ku band port 22, respectively, and then transmitted to the Ku transceiver component via the first Ku band port 21 and the second Ku band port 22.
[0062] In one alternative implementation, such as Figure 10 As shown, the second waveguide structure 5 includes a circular waveguide 51, a third stepped gradient waveguide 52, a first Ku waveguide 53, and a second Ku waveguide 54.
[0063] Circular waveguide 51 is connected to circular waveguide port 12 to access Ku-band signals; The third stepped gradient waveguide 52 is connected to the circular waveguide 51, and the orthogonal mode separation of the Ku-band signal is achieved through the stepped gradient waveguide structure.
[0064] The first Ku waveguide 53 is connected to the third stepped-gradient waveguide 52 and to the first Ku-band port 21. The second Ku waveguide 54 is connected to the third stepped-gradient waveguide 52 and to the second Ku-band port 22. The two orthogonal signals are respectively transmitted to the Ku transceiver components connected to the first Ku-band port 21 and the second Ku-band port 22 for processing.
[0065] As an optional implementation method, such as Figure 11 As shown, the third stepped gradient waveguide 52 includes a first stepped side 521 and a second stepped side 522 arranged opposite to each other, wherein the first stepped side 521 and the second stepped side 522 are symmetrical to each other. The top of the third stepped gradient waveguide 52 is connected to the circular waveguide 51, the bottom of the third stepped gradient waveguide 52 is connected to the second Ku waveguide 54, and the first Ku waveguide 53 is connected to the first stepped side 521.
[0066] To facilitate centralized connection and wiring of Ku transceiver components, in one optional implementation, such as Figure 6 As shown, the first Ku band port 21 and the second Ku band port 22 are located on the same side of the switching device body 10, such as the same side as the first Ka band port 31 and the second Ka band port 32 in the previous embodiment, so as to further improve the convenience of connection and wiring of the two transceiver components (Ka transceiver component and Ku transceiver component) and make overall planning and wiring more convenient.
[0067] like Figure 11As shown, the first Ku waveguide 53 includes a fourth stepped gradient waveguide 531 and a third-shaped waveguide 532 that are interconnected. The fourth stepped gradient waveguide 531 is connected to the first stepped side 521, and the third-shaped waveguide is connected to the first Ku band port 21. The second Ku waveguide 54 includes a fifth stepped gradient waveguide 541 and a fourth square waveguide 542 that are interconnected. The fifth stepped gradient waveguide 541 is connected to the bottom of the third stepped gradient waveguide 52, and the fourth square waveguide is connected to the second Ku band port 22.
[0068] The aforementioned fourth-step tapered waveguide 531 and fifth-step tapered waveguide 541 are both used for impedance matching, bandwidth optimization, and mode conversion of signals; the third square waveguide 532 and fourth square waveguide 542 are mainly used for signal connection to corresponding ports. Furthermore, since the first Ka-band port 31 and the second Ka-band port 32 share the same side, while the first Ku waveguide 53 and the second Ku waveguide 54 are connected to the third-step tapered waveguide 52 at different locations, the fourth-step tapered waveguide 531 in the first Ku waveguide 53 also serves to guide the signal direction. Therefore, the fourth-step tapered waveguide 531 adopts a bent waveguide structure design.
[0069] In addition, considering that the first Ku waveguide 53 is connected to the first stepped side 521 of the third stepped gradient waveguide 52, it causes some interference to the stepped gradient structure of this side. To ensure / improve the synchronization of the third stepped gradient waveguide 52 for orthogonal signal separation and to compensate for the influence of the first Ku waveguide 53, in an optional implementation, such as... Figure 11 As shown, a matching waveguide 523 is provided on the second step side 522 of the third step gradient waveguide 52, which is positioned opposite to the first Ku waveguide 53. Furthermore, the structure of the matching waveguide 523 can be further designed to be the same as the first step gradient structure of the fourth step gradient waveguide 531, so as to ensure the matching effect while reducing the design difficulty.
[0070] Based on the concept of this application, this application also provides a Ka-Ku transceiver waveguide switching component, such as... Figure 12 As shown, the Ka-Ku transceiver waveguide switching assembly includes, in addition to the Ka-Ku transceiver waveguide switching device described in the previous embodiments, a Ka feed 6 and a Ku feed 7 matched to the Ka-Ku transceiver waveguide switching device. Both the Ka feed 6 and the Ku feed 7 are matched to the common port 1 of the Ka-Ku transceiver waveguide switching device to ensure the reliability and stability of the connection.
[0071] Specifically, in one alternative implementation, such as Figure 13As shown, the Ka feed 6 includes a Ka radiating surface 61, a Ka transition waveguide 62, and a Ka mounting base 63 connected in sequence. The Ka mounting base 63 is designed to connect the Ka transition waveguide 62 to the first waveguide structure 4 when connected to the common port 1, while simultaneously shielding the second waveguide structure 5.
[0072] like Figure 14 As shown, the Ku feed 7 includes a Ku radiating surface 71, a Ku transition waveguide 72, and a Ku mounting base 73 connected in sequence. The Ku mounting base 73 is designed to connect the Ku transition waveguide 72 to the second waveguide structure 5 when connected to the common port 1, while simultaneously shielding the first waveguide structure 4.
[0073] For example, taking the structure of the common port 1 designed in the previous embodiment as an example, two square waveguide ports 11 are designed on opposite sides of the circular waveguide port 12. The shape of the Ku mounting base 73 matches the port base 13 of the common port 1. A circular through hole is opened in the center of the bottom of the Ku mounting base 73, which matches the shape and size of the circular waveguide port 12. In this way, when the Ku mounting base 73 is connected to the port base 13, it will conduct Ku radiation surface 71 (Ku transition waveguide 72) and circular waveguide port 12, while covering the square waveguide ports 11 on both sides.
[0074] The shape of the Ka mounting base 63 also matches the port base 13. The bottom of the Ka mounting base 63 has two square holes on opposite sides, which match the shape and size of the two square waveguide ports 11. When the Ka mounting base 63 is connected to the port base 13, it will conduct the Ka radiating surface 61 (Ka transition waveguide 62) and the two square waveguide ports 11, while covering the central circular waveguide port 12.
[0075] As an optional implementation, the Ka radiating surface 61 is a stepped horn structure, and the Ka transition waveguide 62 is a partition-type circular polarizer structure, including one input port and two output ports. The input port is connected to the Ka radiating surface 61. The top center of the Ka mounting base 63 has two adjacent input holes, which are respectively connected to the two output ports at the bottom of the Ka transition waveguide 62. The two input holes are respectively connected to the two square holes at the bottom through two internal symmetrical waveguides.
[0076] The Ku radiating surface 71 has a stepped horn structure, and the Ku transition waveguide 72 has a tapered horn waveguide structure, with its waveguide aperture gradually decreasing to be equal to the circular through-hole on the Ku mounting base 73. This tapering can be done gradually to the same size, or it can be done by first tapering to the same size and then connecting through a section of circular waveguide.
[0077] To verify the effectiveness of the embodiments of this application, simulation tests were also conducted on the designed Ka-Ku transceiver waveguide switching component in these embodiments. The test dimensions of the Ka-Ku transceiver waveguide switching device are as follows: Figure 15 As shown.
[0078] For Ka-band signals, after connecting the Ka feed 6 to the waveguide switching device of the Ka-Ku transceiver assembly, the measured left-hand gain is as follows: Figure 16 As shown, the right-hand gain is as follows Figure 17 As shown in the figure. The test results demonstrate that the Ka-Ku transceiver waveguide switching component exhibits good radiation performance in the Ka band.
[0079] For Ku-band signals, after connecting the Ku feed 7 to the waveguide switching device of the Ka-Ku transceiver assembly, the measured high-frequency gain is as follows: Figure 18 As shown, the low-frequency gain is as follows Figure 19 As shown in the figure, the test results demonstrate that the waveguide switching component of the Ka-Ku transceiver module also exhibits good radiation performance in the Ku band. This proves the effectiveness of the proposed solution.
[0080] This invention is not limited to the specific embodiments described above. The invention extends to any new feature or combination disclosed in this specification, as well as any new method or process step or combination disclosed herein.
Claims
1. A waveguide switching device for a Ka-Ku transceiver assembly, characterized in that, include: The switching device body; A common port is provided on the switching device body; the common port is used to connect a Ka feed source or a Ku feed source. The Ka-band port is disposed on the switching device body and is connected to the common port through a first waveguide structure; the Ka-band port is used for fixed connection with the Ka transceiver component. The Ku-band port is located on the switching device body and is connected to the common port through a second waveguide structure; the Ku-band port is used for fixed connection with the Ku transceiver component.
2. The Ka-Ku transceiver waveguide switching device as described in claim 1, characterized in that, The common port includes a port base, a square waveguide port, and a circular waveguide port; The square waveguide port is connected to the first waveguide structure; The circular waveguide port is connected to the second waveguide structure; The port base is used to connect the Ka feed or the Ku feed, and when connecting the Ka feed, the circular waveguide port is blocked by the Ka feed; when connecting the Ku feed, the square waveguide port is blocked by the Ku feed.
3. The Ka-Ku transceiver waveguide switching device as described in claim 2, characterized in that, The square waveguide port includes a first square waveguide port and a second square waveguide port; the Ka-band port includes a first Ka-band port and a second Ka-band port. The first waveguide structure includes a first Ka waveguide and a second Ka waveguide; The first Ka-band waveguide includes a first square waveguide, a first stepped waveguide, and a first serpentine waveguide connected in sequence; the first square waveguide is connected to the first square waveguide port; the first serpentine waveguide is connected to the first Ka-band port. The second Ka-band waveguide includes a second square waveguide, a second stepped waveguide, and a second serpentine waveguide connected in sequence; the second square waveguide is connected to the port of the second square waveguide; the second serpentine waveguide is connected to the port of the second Ka-band.
4. The Ka-Ku transceiver waveguide switching device as described in claim 3, characterized in that, The first Ka-band port and the second Ka-band port are located on the same side of the switching device body; the first square waveguide port and the second square waveguide port are centrally symmetrical about the center of the circular waveguide port; the first Ka waveguide and the second Ka waveguide are mutually symmetrical.
5. The Ka-Ku transceiver waveguide switching device as described in claim 2, characterized in that, The Ku-band port includes a first Ku-band port and a second Ku-band port; The second waveguide structure includes a circular waveguide, a third stepped gradient waveguide, a first Ku waveguide, and a second Ku waveguide; The circular waveguide is connected to the circular waveguide port; The third-step gradient waveguide is connected to the circular waveguide; The first Ku waveguide is connected to the third stepped gradient waveguide and is also connected to the first Ku band port; The second Ku waveguide is connected to the third stepped gradient waveguide and to the second Ku band port.
6. The Ka-Ku transceiver waveguide switching device as described in claim 5, characterized in that, The third stepped waveguide includes a first stepped side and a second stepped side arranged opposite to each other, the first stepped side and the second stepped side being symmetrical to each other; the top of the third stepped waveguide is connected to the circular waveguide, the bottom of the third stepped waveguide is connected to the second Ku waveguide, and the first Ku waveguide is connected to the first stepped side.
7. The Ka-Ku transceiver waveguide switching device as described in claim 6, characterized in that, The first Ku-band port and the second Ku-band port are located on the same side of the switching device body; The first Ku waveguide includes a fourth stepped gradient waveguide and a third-shaped waveguide that are interconnected. The fourth stepped gradient waveguide is connected to the side of the first stepped waveguide, and the third-shaped waveguide is connected to the first Ku band port. The second Ku waveguide includes a fifth stepped gradient waveguide and a fourth square waveguide that are interconnected. The fifth stepped gradient waveguide is connected to the bottom of the third stepped gradient waveguide, and the fourth square waveguide is connected to the second Ku band port.
8. The Ka-Ku transceiver waveguide switching device as described in claim 6 or 7, characterized in that, A matching waveguide is provided on the second step side of the third step gradient waveguide; the matching waveguide is arranged opposite to the first Ku waveguide.
9. A Ka-Ku transceiver waveguide switching component, characterized in that, Including the Ka-Ku transceiver waveguide switching device as described in any one of claims 1-8, and, Ka feed; Ku feed source; Both the Ka feed and the Ku feed are matched with the common port.
10. The Ka-Ku transceiver waveguide switching component as described in claim 9, characterized in that, The Ka feed includes a Ka radiating surface, a Ka transition waveguide, and a Ka mounting base connected in sequence; the Ku feed includes a Ku radiating surface, a Ku transition waveguide, and a Ku mounting base connected in sequence. The Ka mounting base is designed such that when connected to the common port, the Ka transition waveguide is connected to the first waveguide structure, while simultaneously shielding the second waveguide structure; The Ku mounting base is designed such that, when connected to the common port, the Ku transition waveguide is connected to the second waveguide structure, while simultaneously shielding the first waveguide structure.