Feed source horn and satellite transceiver

Abstract

The utility model provides a feed source horn and a satellite transceiver, relates to the technical field of radio frequency communication, and solves the problem that a feed source port of a satellite transceiver in the prior art is difficult to quickly switch the polarization direction of a radiation wave. Under the condition of keeping fit, by adjusting the positions of the rotating base and the loudspeaker main body, the loudspeaker can be used for rapidly switching the polarization directions of received radiation waves and transmitted radiation waves, can also be suitable for a complex electromagnetic environment, keeps a good transmitting-receiving axial ratio, effectively inhibits crosstalk of transmitting and receiving signals, and improves the transmission efficiency. And the good cross polarization isolation of the device can be ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of radio frequency communication, and in particular to a feed horn and a satellite transceiver. BACKGROUND

[0002] With the development of modern communication technology, satellite communication is widely used to meet the requirement of communication at any time due to its stronger flexibility, comprehensive coverage, and characteristics of being not affected by geographical conditions and natural disasters. Circularly polarized wave is a commonly used electromagnetic wave transmission mode in the field of satellite communication, which is usually applied in satellite communication terminals.

[0003] In the related art, when the polarization direction of the received and emitted radiation waves is switched, the staff needs to manually adjust the double circular polarizer of the feed port and then reinstall it for use. The switching relies on special tools, and the whole process is time-consuming, which is difficult to meet the requirements of emergency application scenarios. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a feed horn and a satellite transceiver, which solves the problem that the feed port of the satellite transceiver in the related art cannot quickly switch the polarization direction of the radiation wave. The satellite transceiver of the present application can quickly switch the polarization direction of the received and emitted radiation waves through the feed horn, and can effectively suppress the cross talk of the transceiver signal, which helps to ensure that the device has good cross-polarization isolation.

[0005] In the first aspect, the present application provides a feed horn, which comprises a horn main body, a positioning mounting seat, and a rotating base. The open end of the horn main body extends outward along the axial direction of the horn main body by a preset distance, the connecting end of the horn main body is connected with the rotating base, the horn main body is used for rotating relative to the positioning mounting seat and driving the rotating base to rotate in the process of rotation, and the rotating base is used for connecting a polarizer. The positioning mounting seat comprises a through hole matched with the connecting end of the horn main body, and further comprises a plurality of storage holes. The plurality of storage holes are respectively distributed on the circumferential side of the through hole, and the storage holes have the same orientation as the through hole. Each storage hole is used for placing a positioning bead with a compression stroke. The surface of the rotating base is provided with a plurality of protrusions corresponding to the storage holes. The height of the protrusion is less than or equal to the compression stroke of the positioning bead. Each protrusion is used for abutting against the positioning bead placed in the corresponding storage hole.

[0006] In the second aspect, the present application further provides a satellite transceiver, which comprises the feed horn provided in the first aspect and a polarizer. The rotating base of the feed horn is connected with the polarizer, and the rotating base is used for driving the polarizer to rotate in the process of rotation.

[0007] The horn main body and the rotating base in the feed horn of the application can rotate relative to the positioning mounting base, and then by adjusting the positions of the rotating base and the horn main body while keeping the fit, it can be used to realize the quick switching of the polarization direction of the received and emitted radiation waves, and can also adapt to complex electromagnetic environments, maintain a good receiving and transmitting axis ratio, effectively suppress the cross talk of the receiving and transmitting signals, and help to ensure that the device has good cross-polarization isolation. The satellite transceiver applying the feed horn can provide simple and convenient operation for the user to switch the polarization direction, and the operation process is simple and convenient, the operation time is short, the learning cost of the user is low, the user can quickly master the switching operation of the polarization direction, and the use experience of the user is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 The structure schematic diagram of the rotating base provided by an embodiment of the application is shown in the figure.

[0009] Figure 2 The top view schematic diagram of the rotating base shown in the figure is shown in the figure. Figure 1

[0010] Figure 3 The explosion schematic diagram of the feed horn from a perspective provided by an embodiment of the application is shown in the figure.

[0011] Figure 4 The explosion schematic diagram of the feed horn from another perspective provided by an embodiment of the application is shown in the figure.

[0012] Figure 5 The structure schematic diagram of the satellite transceiver from a perspective provided by an embodiment of the application is shown in the figure.

[0013] Reference signs:

[0014] Horn main body 110, first thread 111, positioning mounting base 120, storage hole 121, through hole 122, mounting hole 123, screw 124, rotating base 130, protrusion 131, conical hole 132, second thread 133, positioning bead 140. DETAILED DESCRIPTION

[0015] The embodiments of the application will be further described in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the embodiments of the application, and not to limit the embodiments of the application. In addition, it should be noted that in order to facilitate the description, only the parts related to the embodiments of the application are shown in the drawings, and those skilled in the art should understand that any combination of technical features can constitute an optional embodiment as long as the technical features are not mutually contradictory after reading the description of the application.

[0016] ​The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a particular order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances to facilitate the implementation of the embodiments of the present application in an order other than that illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of a kind and are not limited in number, for example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects before and after are in an "or" relationship. In the description of the present application, "a plurality of" means two or more, and "several" means one or more.

[0017] With the development of modern communication technology, the communication system and communication capability are constantly improving, in order to meet the needs of communication at any time, any place and any situation, satellite communication is applied and developed with its stronger flexibility, comprehensive coverage and characteristics of not being affected by geographical conditions and natural disasters. Circularly polarized wave is a commonly used electromagnetic wave transmission mode in the field of satellite communication, and can also be applied in satellite communication terminal.

[0018] Circularly polarized wave is an instantaneous rotating field with equal amplitude, that is, the endpoint trajectory of the instantaneous electric field vector of the wave is a circle when viewed along its propagation direction. If the instantaneous electric field vector rotates in the direction of left-hand screw along the propagation direction, it is called left-hand circularly polarized wave (LHCP, Left-Hand Circularly-Polarized); otherwise, it is called right-hand circularly polarized wave (RHCP, Right-Hand Circular Polarisation). In the working scene of violent swinging or rolling, the advantage of circularly polarized wave is more prominent, so circularly polarized wave is widely used in electronic reconnaissance and jamming, satellite communication and other applications.

[0019] The dual circularly polarized satellite transceiver in the related art needs the staff to manually adjust the dual circular polarizer of the feed port after disassembling it, and then reassembles and uses it when switching the polarization direction of the received and emitted radiation waves. The disassembly and switching rely on special tools, and the whole process takes too long, which is difficult to meet the needs of emergency application scenarios. For example, the related art realizes polarization switching by the way of mechanically rotating the gear driven by the motor, but this way will cause the device to increase in size, and in this way, the feed horn deviates from the original phase center, so that the antenna focal point needs to be re-matched every time the switching is performed, and frequent switching is easy to cause gear wear, thereby affecting the accuracy of the alignment and reducing the reliability of the device.

[0020] In addition, in the related art, a large screw rotating device can be provided to achieve loosening or locking of the feed source horn, and the reciprocating polarization switching is achieved by clamping at 0° to 180° during rotation. However, this method also increases the size of the device, and the feed source horn deviates from the original phase center, so that the antenna focal point needs to be re-matched every time the switching is performed.

[0021] To this end, the present application provides a feed source horn, which includes a horn body, a positioning mounting seat, and a rotating base. When the feed source horn is applied to a satellite transceiver, the user can quickly switch the polarization direction by manually rotating the feed source horn, without adjusting the original antenna phase center, and the reliability is high.

[0022] The open end of the horn body extends outward along the axial direction of the horn body by a predetermined distance, and the connecting end of the horn body is connected to the rotating base. The horn body is used to rotate relative to the positioning mounting seat and drive the rotating base to rotate during rotation. For example, in some embodiments, the connecting end of the horn body is connected to the rotating base, such as a threaded connection. A first thread is provided on the inner side wall of the connecting end of the horn body, and the connecting pipe of the rotating base includes a second thread matched with the first thread, so that the connecting end of the horn body and the rotating base are connected by the first thread and the second thread. It is conceivable that in some embodiments, a first thread can also be provided on the outer side wall of the connecting end of the horn body, and a second thread matched with the first thread can be provided on the inner side wall of the connecting pipe, which can also achieve threaded connection.

[0023] It should be noted that in an embodiment, the connecting end of the horn body and the rotating base can also be connected in a clamping manner, such as a tenon, a protruding structure, etc., which are respectively provided on the connecting end of the horn body and the rotating base, so as to fix the two together.

[0024] In addition, the rotating base is used to connect the polarizer, so that when the user rotates the horn body, the rotating base and the polarizer can be driven to rotate, thereby switching the polarization direction. It is conceivable that the connection between the rotating base and the polarizer can be a threaded connection as described above, or can be locked by a screw to achieve connection.

[0025] The positioning mounting seat includes a through hole matched with the connecting end of the horn body, and further includes a plurality of storage holes. The plurality of storage holes are respectively distributed on the circumferential side of the through hole, and the storage holes have the same orientation as the through hole. Each storage hole is used to place a positioning bead with a compression stroke. The surface of the rotating base is provided with a plurality of protrusions, and the height of each protrusion is less than or equal to the compression stroke of the positioning bead. Each protrusion is used to abut the positioning bead placed in the corresponding storage hole.

[0026] And the protrusions correspond to the storage holes one by one, that is, the protrusions correspond to the storage holes in number and position, for example, a plurality of storage holes are distributed on the positioning mounting base in a way of equal division on a circle, and the same number of protrusions are also distributed on the rotating base in a way of equal division on the same circle, so that when one of the protrusions abuts against the positioning bead in the corresponding storage hole, the other protrusions also abut against the positioning beads in the corresponding storage holes. Alternatively, in an embodiment, the plurality of storage holes and the plurality of protrusions can also be distributed on a plurality of concentric circles respectively, for example, one storage hole is arranged on each concentric circle, and the orientation of each storage hole relative to the center of the circle is different, and the protrusions are arranged in the same way.

[0027] It can be understood that the connecting end of the horn body is connected to the rotating base through the through hole of the positioning mounting base, and the corresponding positioning bead is placed in the storage hole of the positioning mounting base, and then in the overall structure of the feed horn, the rotating base is attached to the positioning mounting base, thereby compressing the positioning bead so that the positioning bead abuts against the rotating base. For this purpose, the user can hold the horn body and rotate the horn body to make the horn body rotate with the rotating base, and when the rotating base rotates relative to the positioning mounting base, the positioning bead is fixed relative to the rotating rotating base during rotation. However, due to the plurality of protrusions arranged on the surface of the rotating base, when the protrusions move to the position of the positioning bead during the rotation of the rotating base, the protrusions can abut against the positioning bead, thereby playing a role of informing the user of the progress of the current rotation. Moreover, the height of the protrusion is less than or equal to the compression stroke of the positioning bead, and after the user rotates the horn body to move the protrusion on the rotating base to the position of the positioning bead, the user can still continue to rotate the horn body to gradually compress the positioning bead to the maximum compression amount (the maximum compression amount corresponds to the height of the protrusion) and then gradually release the positioning bead, so as to realize that the protrusion crosses the corresponding positioning bead, and further adjust the position of the rotating base and the horn body to complete the switching of the polarization direction.

[0028] Therefore, the horn body and the rotating base in the feed horn of the present application can rotate relative to the positioning mounting base, and by adjusting the position of the rotating base and the horn body while keeping the fit, it can be used to quickly switch the polarization direction of the received and transmitted radiation waves, and can also adapt to complex electromagnetic environment, maintain good transmit-receive axis ratio, effectively suppress the cross talk of the transmit and receive signals, and help to ensure that the device has good cross-polarization isolation. The satellite transceiver applying the feed horn can provide simple and convenient operation for the user to switch the polarization direction, and the operation process is simple and convenient, the operation time is short, the learning cost of the user is low, the user can quickly master the switching operation of the polarization direction, and the use experience of the user is effectively improved.

[0029] In an embodiment, each protrusion is provided with a tapered hole, which is an opening in the protrusion facing the positioning seat, and the tapered hole gradually expands along the facing direction. It should be noted that the tapered hole can be a hole with a conical shape, and the tapered hole can also be a hole with a quadrangular pyramid shape. It can be understood that the tapered hole is used to place the positioning bead when the protrusion abuts against the positioning bead, that is, during the rotation of the rotating base, when the protrusion moves to the position of the positioning bead, due to the corresponding height of the protrusion, the protrusion will further compress the positioning bead, and the positioning bead will fall into the tapered hole and not be easily moved, thereby achieving the positioning of the positioning bead, which helps to determine the position of the positioning bead during the use of the feed horn, so as to achieve accurate polarization direction switching control.

[0030] Of course, when the positioning bead falls into the tapered hole, if the user still needs to switch the polarization direction of the circularly polarized wave output by the feed horn, the horn body can still be rotated, so that the positioning bead can leave the tapered hole along the inner wall of the tapered hole.

[0031] The compression amount of the tapered hole, that is, the first compression amount, is formed by the inner wall of the tapered hole abutting against the positioning bead. Similarly, the surface of the rotating base can also form a corresponding compression amount, that is, the second compression amount, when abutting against the positioning bead. Optionally, in an embodiment, the first compression amount is equal to the second compression amount, and then for the size of the tapered hole, the depth of the tapered hole is the same as the height of the protrusion, and when the positioning bead falls into the tapered hole, the positioning bead can contact the bottom of the tapered hole. In addition, in some embodiments, for the size of the tapered hole, the depth of the hole can be greater than the height of the protrusion, that is, the bottom of the tapered hole is lower than the surface of the rotating base, but when the positioning bead falls into the tapered hole, the compression amount of the positioning bead by the tapered hole is the same as the compression amount of the positioning bead by the rotating base. It can be thought that the above-mentioned embodiments can realize the control of the compression amount by setting different hole diameters, hole wall inclinations and depths of the tapered hole.

[0032] In an embodiment, the height of the protrusion is less than or equal to 80% of the compression stroke corresponding to the positioning bead, i.e. the third compression amount brought by the protrusion corresponds to the maximum compression amount of the positioning bead, while the first and second compression amounts correspond to the minimum compression amount of the positioning bead, both of which are greater than or equal to 30% of the compression stroke corresponding to the positioning bead. For example, if the compression stroke of the positioning bead is 1 mm, the maximum compression amount is 0.8 mm and the minimum compression amount is 0.3 mm. Therefore, the maximum compression amount is still within the limit of the compression stroke of the positioning bead, and there is still a gap as a safety space for the cumulative tolerance of the assembly, so that the jamming phenomenon does not occur during rotation; and within the compression amount range, the elastic feedback of the positioning bead is better, and the positioning bead can generate more uniform elastic force, so that the user can obtain better rotation feedback when rotating the horn body, which helps to better switch the polarization direction, and also effectively improves the user experience.

[0033] In an embodiment, the positioning mounting seat includes four storage holes, and the four storage holes are distributed on a circle with the center point of the positioning mounting seat as the center and a preset distance as the radius in a quarter distribution manner. It can be understood that the four storage holes form a circle with the center point of the positioning mounting seat as the center and a preset distance as the radius, and the four storage holes are respectively located at the quarter positions on the circle. Since the protrusions correspond one-to-one to the storage holes, i.e. the number and position of the protrusions correspond to the storage holes, the protrusions are distributed on the rotating base in the same manner.

[0034] In the whole machine device (such as a satellite transceiver including the feed horn), when the user rotates the horn body to switch the polarization direction, the whole operation process is divided into four clear segments: left-hand circular polarization corresponds to leaving the left-hand high point to the 90° high point; continue to rotate to the 180° high point, and stably switch to right-hand circular polarization; leave the right-hand high point to the 270° high point; continue to rotate to the 360° high point, and stably switch to left-hand circular polarization, and so on. It can be conceived that the above process can be realized by forward and reverse rotation. It should be noted that in some embodiments, in order to be more convenient to use, the outer circular edge of the feed horn can be provided with a clear left and right polarization direction indication mark, corresponding to LHCP or RHCP on the device body. Therefore, the whole operation process is simple and convenient, the operation time is short, and the learning cost of the user is low, and the user can quickly master the polarization direction switching operation, effectively improving the user experience.

[0035] In some embodiments, the moving track of the positioning bead on the surface of the rotating base during the rotation of the rotating base relative to the positioning mount is referred to as a rotation path, which can be determined after the installation position of the positioning bead (i.e. the position of the storage hole) is determined. For example, when the storage holes are evenly distributed on a circle on the positioning mount with the center point of the positioning mount as the center and a preset distance as the radius, the circle corresponds to the corresponding rotation path. In this case, the slopes are provided on both sides of the protrusion corresponding to the rotation path, and the slopes have corresponding slopes to enable the positioning bead to more smoothly reach the top of the protrusion and leave the top of the protrusion during the rotation of the rotating base, thereby helping to improve the smoothness of the rotation process.

[0036] Specifically, in an embodiment, the corresponding slope of the slope provided on both sides of the protrusion is 10°, and the slope of the slope is relatively gentle, which can enable the ascending and descending process of the positioning bead during the rotation of the rotating base to be smooth, thereby further improving the smoothness of the rotation process.

[0037] Figure 1 A structural schematic diagram of the rotating base 130 provided in an embodiment of the present application is shown in Figure 2 For Figure 1 A top view schematic diagram of the rotating base 130 is shown in Figure 2 The dashed line in the figure represents the rotation path of the positioning bead on the surface of the rotating base 130. Referring to Figure 1 and Figure 2 The connecting pipe on the rotating base 130 is provided with a second thread 133 to realize connection with the horn body. Moreover, four protrusions 131 are provided on the surface of the rotating base 130 to correspond to four positioning beads, and slopes are provided on both sides of each protrusion 131 relative to the rotation path. The slopes can also have corresponding radii to adapt to the rotation path, thereby further facilitating the positioning bead to cross the protrusion 131.

[0038] Moreover, a corresponding tapered hole 132 is provided on each protrusion 131, which is an opening in the protrusion 131 facing the positioning mount, and the tapered hole 132 gradually expands along the direction. In this case, the tapered hole 132 can provide a compression amount for the positioning bead, but the compression amount is smaller than the compression amount caused by the maximum height of the protrusion 131, thereby releasing the previous compression amount when the positioning bead falls into the tapered hole 132 to further limit the positioning bead. It can be understood that when the positioning bead can reach the top of the protrusion 131 along the slope during the rotation process, it further falls into the tapered hole 132, thereby realizing the limitation of the positioning bead, and when multiple positioning beads fall into the corresponding tapered holes 132 at the same time due to the release of the compression amount, they can hit the inside of the tapered hole 132 to make a sound, thereby further playing a prompting role for the user.

[0039] It should be noted that in some embodiments, the other surface of the rotating base 130 is also provided with a plurality of alignment pins, which are used to align the rotating base 130 with a device (i.e., a polarizer) for adjusting the polarization direction of the circularly polarized wave, so that the state before the rotating of the feed horn can make the circularly polarized wave output by the polarizer meet the initial polarization direction, and the rotating base 130 can also drive the polarizer to rotate at the same time to realize the switching of the polarization direction.

[0040] In an embodiment, the connecting end of the horn body and the rotating base are connected in a threaded manner, and a sealing member is arranged between the first thread and the second thread, so that the two are fixed and can also play a sealing role. During the assembly of the feed horn, thread glue is applied between the first thread and the second thread, and then the corresponding glue is formed after the thread glue is cured, and the glue is used as a sealing member, so that the connecting end of the horn body and the rotating base are fixed and sealed, and can effectively withstand the rotating rolling friction force generated by the positioning bead when the feed horn is reversed, and at the same time meet the working performance requirements under the vibration and impact conditions of the whole machine.

[0041] It should be noted that the thread glue (also known as anaerobic glue) is a single-component sealing adhesive made by using the principle of free radical inhibition of oxygen. It can be used for bonding and sealing, and can quickly polymerize and solidify at room temperature when the glued surface is isolated from the air and catalyzed.

[0042] In some embodiments, a sealing ring is arranged between any two of the horn body, the positioning mounting seat, and the rotating base. For example, a sealing ring is arranged between the horn body and the positioning mounting seat, between the positioning mounting seat and the rotating base, and between the horn body and the rotating base, so that the whole machine equipment installed with the feed horn has the performance of waterproofing and salt mist proofing, thereby adapting to the environment of long-term outdoor work.

[0043] Figure 3 An exploded schematic view of the feed horn from a perspective of an embodiment of the present application is provided, Figure 4 An exploded schematic view of the feed horn from another perspective of an embodiment of the present application is provided, with reference to Figure 3 and Figure 4 The feed horn of the present application includes a horn body 110, a positioning bead 140, a positioning mounting seat 120, and a rotating base 130.

[0044] The opening end of the loudspeaker body 110 extends outward along the axial direction of the loudspeaker body 110 by a preset distance, and the connecting end of the loudspeaker body 110 is connected to the rotating base 130 through a threaded connection. For example, a first thread 111 is arranged on the inner side wall of the connecting end of the loudspeaker body 110, and the rotating base 130 includes a connecting pipe, and the outer side wall of the connecting pipe is provided with a second thread 133 matched with the first thread 111, so that the connecting end of the loudspeaker body 110 is threadedly connected to the rotating base 130 through the first thread 111 and the second thread 133. Therefore, the loudspeaker body 110 and the rotating base 130 can rotate together when the rotating base 130 is rotated relative to the positioning mounting seat 120 and drives the loudspeaker body 110 to rotate during the rotation. It should be noted that the positioning mounting seat 120 is provided with a cavity capable of accommodating the rotating base 130 in the embodiment, and the user operates the loudspeaker body 110 during the operation of the feed source loudspeaker.

[0045] The positioning mounting seat 120 of the positioning bead 140 includes a through hole 122 matched with the connecting end of the loudspeaker body 110, and the positioning mounting seat 120 of the positioning bead 140 further includes a plurality of storage holes 121, which are respectively distributed on the circumferential side of the through hole 122 and have the same orientation as the through hole 122. Each storage hole 121 is used to place a positioning bead 140 having a compression stroke. For example, the storage hole 121 is provided with four positioning beads 140, and the orientation of the positioning bead 140 is towards the rotating base 130, that is, the rotating base 130 can abut against the positioning bead 140. Alternatively, in an embodiment, the rotating base 130 can compress the positioning bead 140 by arranging the storage hole 121 with a corresponding depth, that is, the positioning bead 140 is compressed in the storage hole 121, and the corresponding compression amount is less than the compression stroke of the positioning bead 140. The mounting hole 123 is arranged on the positioning mounting seat 120, and the positioning mounting seat 120 is fixed on the equipment through the corresponding screw 124, so as to realize the installation of the feed source loudspeaker.

[0046] The surface of the rotating base 130 is provided with a plurality of protrusions 131, and the protrusions 131 correspond to the storage holes 121 one by one. The height of the protrusion 131 is less than or equal to the compression stroke of the positioning bead 140. For example, when the storage hole 121 is provided with four protrusions 131, the distribution of the protrusions 131 also corresponds to the storage holes 121, so that when the rotating base 130 is rotated to a corresponding position, the protrusion 131 can be aligned with the positioning bead 140 in the storage hole 121, so that each protrusion 131 can abut against the positioning bead 140 placed in the corresponding storage hole 121.

[0047] The convex 131 of the rotating base 130 also includes a tapered hole 132 for placing the positioning bead 140 when the convex 131 abuts the positioning bead 140, that is, during the process of rotating the horn body 110 to drive the rotating base 130, when the convex 131 rotates to the position of the positioning bead 140, due to the corresponding height of the convex 131, the convex 131 will further compress the positioning bead 140, and make the positioning bead 140 fall into the tapered hole 132 and not easy to move, thereby limiting the positioning bead 140 through the tapered hole 132. In addition, a slope is also provided on both sides of each convex 131, which has a corresponding slope to make the positioning bead 140 more smoothly reach the top of the convex 131 and leave the top of the convex 131 during the rotation of the rotating base 130.

[0048] For this, the through hole 122 of the positioning bead 140 positioning seat 120 is connected to the connecting end of the horn body 110, and the corresponding positioning bead 140 is placed in the positioning hole 121 of the positioning bead 140 positioning seat 120, and then in the overall structure of the feed horn, the rotating base 130 is attached to the positioning bead 140 positioning seat 120, so that the positioning bead 140 is compressed during rotation, so that the positioning bead 140 and the rotating base 130 are in abutment with each other, and during rotation, the positioning bead 140 can provide elastic feedback, so that the user can get better rotation feedback when rotating the rotating base 130 horn body 110, which helps to better switch the polarization direction, and also effectively improves the user's experience.

[0049] It is conceivable that when the user rotates the horn body 110 rotating base 130 to make the rotating base 130 also rotate relative to the positioning bead 140 positioning seat 120, the positioning bead 140 is fixed relative to the rotating base 130 during the rotation of the horn body 110. But because the surface of the rotating base 130 is provided with a plurality of convexes 131, during the rotation of the rotating base 130, when the convex 131 moves to the position of the positioning bead 140, the convex 131 can abut the positioning bead 140, thereby playing the role of informing the user of the progress of the current rotation.

[0050] Moreover, the height of the protrusion 131 is less than or equal to the compression stroke of the positioning beads 140. After the protrusion 131 on the rotating base 130 moves to the position of the positioning beads 140, the user can continue to rotate the horn main body 110, so that the positioning beads 140 can reach the top of the protrusion 131 along the slope, and then fall into the tapered hole 132, thereby achieving the positioning of the positioning beads 140. When multiple positioning beads 140 fall into the corresponding tapered hole 132 at the same time, due to the release of the compression amount, they can impact the inside of the tapered hole 132 to make a sound, further playing a prompting role for the user.

[0051] In the satellite transceiver applying the above-mentioned feed horn, when the user rotates the horn main body 110 to switch the polarization direction, the whole operation process is divided into four clear stages: the first stage, the left-hand polarization corresponds to the departure from the left-hand high point to the 90° high point. The second stage, continue to rotate to the 180° high point, and stably switch to the right-hand. The third stage, depart from the right-hand high point to the 270° high point. The fourth stage, continue to rotate to the 360° high point, and stably switch to the left-hand. As can be seen, the whole operation process is simple and convenient, the operation time is short, and the learning cost of the user is low. The user can quickly master the switching operation of the polarization direction, effectively improving the user experience.

[0052] Figure 5 The structure diagram of the satellite transceiver from a perspective according to an embodiment of the present application is shown in the figure. In an embodiment, the satellite transceiver includes the feed horn and the polarizer as described in the above-mentioned embodiments. The polarizer is connected with the rotating base in the feed horn, for example, the polarizer and the rotating base can be locked by screws, so that the polarizer rotates with the rotating base during the rotation of the rotating base, thereby completing the switching of the polarization direction. Moreover, the arrowed line segment in the figure represents the rotation direction of the feed horn, that is, the feed horn can rotate in the satellite transceiver to complete the switching of the polarization direction by rotation. It should be noted that the direction indicated by the arrow in the figure is one rotation direction of the feed horn, and the feed horn can also rotate in the opposite direction.

[0053] It can be understood that the working principles of the feed horn correspond to aspects including radiating electromagnetic waves, generating uniform field distribution, polarization matching, etc. For example, the feed horn converts high-frequency current or bound electromagnetic waves into radiated electromagnetic wave energy, which is then reflected by a reflector or lens to form a high-gain beam. For another example, the feed horn generates a uniform field distribution on the aperture of the reflector or lens while minimizing power leakage from the edge to improve the gain of the antenna. In addition, the feed horn only radiates waves of the required polarization and is matched with the feed line to ensure efficient energy transmission. In this regard, the feed horn functions to convert bound electromagnetic waves into radiated electromagnetic wave energy, and as a weakly directional antenna, the feed horn can be used to radiate radio frequency power from the feed line to the reflector in the form of electromagnetic waves, so as to generate a suitable field distribution on the aperture to form a required sharp beam or shaped beam. In addition, the polarizer can control the polarization direction of the circularly polarized wave, and the polarizer can convert the linearly polarized wave output by the up-conversion amplifier of the satellite transceiver into a circularly polarized wave and transmit it to the feed port of the antenna. Moreover, as a lossless reciprocal element, the polarizer can also convert the circularly polarized wave received by the antenna into a linearly polarized wave and output it to the waveguide inside the satellite transceiver.

[0054] It can be envisaged that the satellite signals received by the satellite transceiver or the modulated signals to be transmitted are all received or transmitted through the feed horn. For example, in the satellite transceiver, after the satellite signal is received by the feed horn, the satellite signal is accessed through the feed horn access device, and then the satellite transceiver amplifies and converts the received weak satellite signal, so as to access the demodulator at the back end for demodulation. When the satellite transceiver receives the modulated signal provided by the modulator, the device up-converts the modulated signal to a frequency that can be radiated by the antenna, and then radiates it outward through the feed horn. In addition, when the user needs to switch the polarization direction of the circularly polarized wave generated by the feed horn, the user can adjust the relative position of the horn body and the rotating base with respect to the positioning mounting seat by rotating the horn body, so as to drive the polarizer to rotate and complete the switching of the polarization direction.

[0055] Therefore, when the user uses the satellite transceiver, the satellite transceiver provides the user with a simple and convenient polarization direction switching operation through the structure thereon. For example, the user can rotate the horn body on the feed horn, thereby driving the rotating base to rotate, and then making the polarizer rotate as well. In this regard, the advantages of the present scheme are obvious in the application scenario of satellite portable communication, which can reduce the time required for switching and make the operation more convenient. In addition, the feed horn always maintains stable adhesion of the joint surface in any use, so as to be suitable for complex electromagnetic environments and maintain a good transmission-to-reception ratio, which helps to ensure the smooth progress of satellite communication after switching the polarization direction.

[0056] It is also to be noted that the terms "comprising", "including", and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a... " does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0057] Note that the above merely describes preferred embodiments of the present application and the applied technical principles. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and that various obvious changes, reconfigurations, and substitutions can be made without departing from the scope of the present application. Therefore, although the present application has been described in detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A feed horn, characterized by The feed horn comprises a horn body, a positioning mount and a rotating base; An opening end of the horn body extends outward along an axial direction of the horn body by a preset distance, and a connecting end of the horn body is connected with the rotating base, the horn body is configured to rotate relative to the positioning mount and drive the rotating base to rotate in the process of rotation, and the rotating base is configured to be connected with a polarizer; The positioning mount comprises a through hole matched with the connecting end of the horn body, and the positioning mount further comprises a plurality of storage holes, the plurality of storage holes are respectively distributed on a circumferential side of the through hole, and the storage holes are arranged in the same direction as the through hole, and each of the storage holes is configured to place a positioning bead with a compression stroke; A surface of the rotating base is provided with a plurality of protrusions corresponding to the storage holes, heights of the protrusions are less than or equal to the compression stroke of the positioning bead, and each of the protrusions is configured to abut against the positioning bead placed in the corresponding storage hole.

2. The feed horn of claim 1, wherein, Each of the protrusions is provided with a tapered hole for placing the positioning bead when the protrusion abuts against the positioning bead.

3. The feed horn of claim 2, wherein, The height of the protrusion is less than or equal to 80% of the compression stroke, and a first compression amount of an inner wall corresponding to the tapered hole abutting against the positioning bead and a second compression amount of a surface of the rotating base abutting against the positioning bead are both greater than or equal to 30% of the compression stroke.

4. The feed horn of claim 1, wherein, The positioning mount comprises four storage holes, and the four storage holes are distributed on a circle with a center point of the positioning mount as a center and a preset distance as a radius according to a quarter distribution mode, and the number and positions of the protrusions correspond to the storage holes.

5. The feed horn according to any one of claims 1-4, characterized in that, Slopes are arranged on both sides of the protrusion relative to a rotation path, and the rotation path is a moving track of the positioning bead on the surface of the rotating base in the process of rotation of the rotating base relative to the positioning mount.

6. The feed-horn according to claim 5, wherein, The slopes on both sides of the protrusion have a slope of 10°.

7. The feed-horn of claim 1, wherein, An inner side wall of the connecting end of the horn body is provided with a first thread, and the rotating base comprises a connecting pipe, and an outer side wall of the connecting pipe is provided with a second thread matched with the first thread.

8. The feed horn of claim 7, wherein, A sealing member located between the first thread and the second thread is a gel formed after curing of a thread glue.

9. The feed-horn according to claim 1 or 7 or 8, wherein, A plurality of sealing rings are arranged between any two of the horn body, the positioning mount and the rotating base.

10. A satellite transceiver, characterized by The application further provides a polarizer connected with the rotating base of the feed horn, and the rotating base is configured to drive the polarizer to rotate in the process of rotation.

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