Feed source horn and satellite transceiver

Abstract

The invention 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 field of radio frequency communication technology, and in particular to a feed horn and a satellite transceiver. Background Art

[0002] With the development of modern communication technology, satellite communication has been widely used due to its greater flexibility, comprehensive coverage, and freedom from geographical conditions and natural disasters to meet the requirements of communication at any time. Circularly polarized waves are a commonly used electromagnetic wave transmission mode in the field of satellite communication, and are usually used in satellite communication terminals.

[0003] When the dual circular polarization satellite transceiver in the related technology switches the polarization direction of the received radiation wave or the polarization direction of the transmitted radiation wave, it is necessary for the staff to remove the dual circular polarizer of the feed port for manual adjustment and then reinstall it for use. The disassembly and switching rely on special tools. The whole process takes too long and is difficult to meet the needs of emergency application scenarios. Summary of the invention

[0004] The present application provides a feed horn and a satellite transceiver, which solves the problem in the related art that it is difficult for the feed port of the satellite transceiver to quickly switch the polarization direction of the radiated wave. The satellite transceiver of the present application can quickly switch the polarization direction of the received radiated wave and the transmitted radiated wave through the feed horn, and can effectively suppress the crosstalk of the received and transmitted signals, 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 includes a horn body, a positioning mounting seat and a rotating base. Among them, the open end of the horn body extends outward along the axial direction of the horn body to expand a preset distance, the connection 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 the rotation process, and the rotating base is used to connect the polarizer; the positioning mounting seat includes a through hole matching the connection end of the horn body, the positioning mounting seat also includes a plurality of placement holes, the plurality of placement holes are respectively distributed on the peripheral side of the through hole, and the placement holes and the through hole have the same orientation, each placement 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, the protrusions correspond to the placement holes one by one, the height of the protrusions is less than or equal to the compression stroke of the positioning bead, and each protrusion is used to abut the positioning bead placed in the corresponding placement hole.

[0006] In a second aspect, the present application also provides a satellite transceiver, which includes the feed horn and polarizer provided in the first aspect above, the rotating base of the feed horn is connected to the polarizer, and the rotating base is used to drive the polarizer to rotate during the rotation process.

[0007] The speaker body and rotating base in the feed speaker of the present application can rotate relative to the positioning mounting seat, and then by adjusting the position of the rotating base and the speaker body while maintaining the fit, it can be used to achieve rapid switching of the polarization direction of the received radiation wave and the transmitted radiation wave, while also being suitable for complex electromagnetic environments, and maintaining a good transceiver axis ratio, effectively suppressing the crosstalk of the transceiver signals, and helping to ensure that the device has good cross-polarization isolation. And the satellite transceiver using the feed speaker can provide users with simple and convenient operations for switching polarization directions, and the operation process is simple and convenient, the operation time is short, the user's learning cost is low, and the user can quickly master the switching operation of the polarization direction, which effectively improves the user's experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 A schematic diagram of the structure of a rotating base provided in one embodiment of the present application;

[0009] Figure 2 for Figure 1 A schematic top view of the rotating base shown;

[0010] Figure 3 An exploded schematic diagram of a feed horn at a viewing angle provided by an embodiment of the present application;

[0011] Figure 4 An exploded schematic diagram of a feed horn from another perspective provided by an embodiment of the present application;

[0012] Figure 5 A schematic diagram of the structure of a satellite transceiver from one perspective provided in one embodiment of the present application.

[0013] Reference numerals:

[0014] The speaker body 110 , the first thread 111 , the positioning mounting seat 120 , the storage hole 121 , the through hole 122 , the mounting hole 123 , the screw 124 , the rotating base 130 , the protrusion 131 , the tapered hole 132 , the second thread 133 , and the positioning bead 140 . DETAILED DESCRIPTION

[0015] The embodiments of the present application are further described in detail below in conjunction with the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are only used to explain the embodiments of the present application, rather than to limit the embodiments of the present application. It should also be noted that, for ease of description, only the parts related to the embodiments of the present application rather than all structures are shown in the accompanying drawings, and those skilled in the art should be able to think of it after reading the specification of this application that as long as the technical features do not contradict each other, any combination of the technical features can constitute an optional implementation method.

[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 specific order or sequence. It should be understood that the data used in this way can be interchangeable when appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally a class, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally represents that the objects associated before and after are in an "or" relationship. In the description of the present application, "multiple" means two or more, and "several" means one or more.

[0017] With the development of modern communication technology, communication systems and communication capabilities are constantly improving. In order to meet the requirements of good communication at any time, any place and any situation, satellite communication has been applied and developed with its stronger flexibility, comprehensive coverage, and no influence from geographical conditions and natural disasters. Circularly polarized waves are a commonly used electromagnetic wave transmission mode in the field of satellite communication, and are also usually used in satellite communication terminals.

[0018] A circularly polarized wave is an instantaneous rotating field of 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 a left-hand spiral along the propagation direction, it is called a left-hand circularly polarized wave (LHCP); otherwise, it is called a right-hand circularly polarized wave (RHCP). In working scenes with violent swings or tumbling, the advantages of circularly polarized waves are more prominent, so circularly polarized waves are widely used in applications such as electronic reconnaissance and jamming, satellite communications, etc.

[0019] When the dual circular polarization satellite transceiver in the related art switches the polarization direction of the received radiation wave or switches the polarization direction of the transmitted radiation wave, it is necessary for the staff to remove the dual circular polarizer of the feed port for manual adjustment, and then reinstall it for use. The disassembly and switching rely on special tools. The whole process takes too long and is difficult to meet the needs of emergency application scenarios. For example, in the related art, polarization switching is achieved by driving the mechanical gear to rotate by a motor, but this method will cause the device to increase in size, and in this method, the feed horn deviates from the original phase center, so that each switch requires re-matching the antenna focus, and frequent switching is prone to gear wear, thereby affecting the accuracy of alignment and reducing the reliability of the device.

[0020] In addition, in the related art, it can also be achieved by setting a large thread rotating device, such as rotating the device to loosen or lock the feed horn, and realize reciprocating polarization switching by 0° to 180° positioning during the rotation. However, this method will also increase the size of the device, and in this method, the feed horn deviates from the original phase center, so that each switch needs to re-match the antenna focus.

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

[0022] The open end of the speaker body extends outward along the axial direction of the speaker body to expand a preset distance, and the connection end of the speaker body is connected to the rotating base. The speaker body is used to rotate relative to the positioning mounting seat and drive the rotating base to rotate during the rotation process. For example, in some embodiments, the connection end of the speaker body is connected to the rotating base. If the two are connected by thread, a first thread is provided on the inner side wall of the connection end of the speaker body, and the rotating base includes a connecting tube, and the outer side wall of the connecting tube is provided with a second thread matching the first thread, so that the connection end of the speaker body is threadedly connected to the rotating base through the first thread and the second thread. It can be imagined that in some embodiments, a first thread can be provided on the outer side wall of the connection end of the speaker body, and a second thread matching the first thread can be provided on the inner side wall of the connecting tube, so that the two can also be threadedly connected.

[0023] It should be noted that, in one embodiment, the connecting end of the speaker body and the rotating base can also be connected in a snap-fit ​​manner, such as by respectively providing structures such as tenons and protrusions on the connecting end of the speaker 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 speaker body, the rotating base and the polarizer can be driven to rotate, thereby switching the polarization direction. It can be imagined that the connection method between the rotating base and the polarizer can be the threaded connection method as described above, or it can be locked by screws to achieve the connection.

[0025] The positioning mounting seat includes a through hole matching the connection end of the speaker body, and the positioning mounting seat also includes a plurality of placement holes, which are respectively distributed around the through hole, and the placement holes and the through hole have the same orientation, and each placement hole is used to place a positioning bead with a compression stroke. A plurality of protrusions are provided on the surface of the rotating base, and the height of the protrusions is less than or equal to the compression stroke of the positioning bead, and each protrusion is used to abut against the positioning bead placed in the corresponding placement hole.

[0026] Moreover, the protrusions correspond to the storage holes one by one, that is, the protrusions correspond to the storage holes in quantity and position. For example, if a plurality of storage holes are distributed on the positioning mounting seat in an equal manner on a circle, then the same number of protrusions are also distributed on the rotating base in an equal manner on the same circle, so that when one of the protrusions abuts against the positioning beads in the corresponding storage hole, the other protrusions also abut against the positioning beads in the corresponding storage hole. Optionally, in one embodiment, the plurality of storage holes and the plurality of protrusions can also be distributed on a plurality of concentric circles, such as a storage hole is set on each concentric circle, and each storage hole has a different orientation relative to the center of the circle, and the protrusions are set in the same manner.

[0027] It can be understood that the connection end of the speaker body is connected to the rotating base through the through hole of the positioning mount, and a corresponding positioning bead is placed in the storage hole of the positioning mount, and then in the overall structure of the feed speaker, the rotating base is attached to the positioning mount, thereby compressing the positioning bead so that the positioning bead abuts the rotating base. In this regard, the user can hold the speaker body and rotate the speaker body so that the speaker body is brought to the rotating base for rotation. When the rotating base rotates relative to the positioning mount, the positioning bead is fixed relative to the rotating base during the rotation process. However, since a plurality of protrusions are provided on the surface of the rotating base, during the rotation of the rotating base, when the protrusion moves to the position of the positioning bead, the protrusion can abut the positioning bead, thereby serving to inform the user of the current rotation progress. Moreover, the height of the protrusion is less than or equal to the compression stroke of the positioning bead. After the user rotates the speaker body and the protrusion on the rotating base moves to the position of the positioning bead, the user can continue to rotate the speaker body so that the protrusion gradually compresses the positioning bead to the maximum compression amount (the maximum compression amount corresponds to the height of the protrusion) and then gradually releases the positioning bead, thereby making the protrusion cross the corresponding positioning bead, and further adjusting the position of the rotating base and the speaker body to complete the switching of the polarization direction.

[0028] It can be seen that the speaker body and the rotating base in the feed speaker of the present application can rotate relative to the positioning mounting seat, and then by adjusting the position of the rotating base and the speaker body while maintaining the fit, it can be used to achieve rapid switching of the polarization direction of the received radiation wave and the transmitted radiation wave, while also being suitable for complex electromagnetic environments, and maintaining a good transmit-receive axis ratio, effectively suppressing the crosstalk of the transmit-receive signal, and helping to ensure that the device has good cross-polarization isolation. And the satellite transceiver using the feed speaker can provide users with simple and convenient operations for switching polarization directions, and the operation process is simple and convenient, the operation time is short, the user's learning cost is low, and the user can quickly master the switching operation of the polarization direction, which effectively improves the user's experience.

[0029] In one embodiment, a conical hole is provided in each protrusion, and the opening of the conical hole in the protrusion faces the positioning mounting seat, and the conical hole gradually expands along this direction. It should be noted that the conical hole can be a hole in the shape of a cone, or a hole in the shape of a quadrangular pyramid. It can be understood that the conical hole is used to place the positioning bead when the protrusion abuts 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, as the rotation process continues, the protrusion will further compress the positioning bead, and make the positioning bead fall into the conical hole and not easy to move, thereby realizing the limitation of the positioning bead, which helps to determine the position of the positioning bead during the use of the feed horn, so as to realize accurate polarization direction switching control.

[0030] Of course, when the positioning bead falls into the conical 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 continue to be rotated so that the positioning bead can leave the conical hole along the inner wall of the conical hole.

[0031] The compression amount brought by the tapered hole, i.e., 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 abuts against the positioning bead to form a corresponding compression amount, i.e., the second compression amount. Optionally, in one 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, it can also be that the depth of the hole is 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 tapered hole on the positioning bead is the same as the compression amount of the rotating base on the positioning bead. It can be imagined that the above embodiment can achieve the control of the compression amount by setting different apertures, hole wall inclinations and depths for the tapered hole.

[0032] In one embodiment, the height of the protrusion is less than or equal to 80% of the compression stroke corresponding to the positioning bead, that is, the third compression amount brought by the protrusion corresponds to the maximum compression amount of the positioning bead, and the above-mentioned first compression amount and second compression amount 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. Exemplarily, if the compression stroke of the positioning bead is 1mm, correspondingly, the maximum compression amount is 0.8mm and the minimum compression amount is 0.3mm. Therefore, the maximum compression amount still does not reach 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 component, so that there will be no jamming during the rotation process; and within this compression range, the elastic feedback of the positioning bead is better, and the positioning bead can generate a more uniform elastic force, so that the user can obtain better rotation feedback when rotating the speaker body, which helps to better switch the polarization direction and effectively improve the user experience.

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

[0034] In this regard, in the whole device (such as a satellite transceiver including the feed horn), when the user rotates the horn body to switch the polarization direction, the entire operation process is divided into four clear sections: left-hand polarization corresponds to leaving the left-hand high point to the 90° high point; continue to rotate to reach the 180° high point, stably switch to right-hand; leave the right-hand high point to reach the 270° high point; continue to rotate to reach the 360° high point, stably switch to left-hand, and so on. It can be imagined that the above process can be achieved by both forward and reverse rotation. It should be noted that in some embodiments, in order to facilitate use, the outer circle edge of the feed horn may be provided with an obvious left-hand and right-hand polarization direction indicator mark, corresponding to the LHCP or RHCP on the device body. Therefore, the entire operation process is simple and convenient, the operation time is short, and the user's learning cost is low. The user can quickly master the switching operation of the polarization direction, which effectively improves the user's experience.

[0035] In some embodiments, during the rotation of the rotating base relative to the positioning mounting base, the movement trajectory of the positioning bead on the surface of the rotating base is called a rotation path. After the installation position of the positioning bead (i.e., the position of the storage hole) is determined, the path of the rotation path can also be determined. For example, when the storage holes are distributed in an equal manner on the positioning mounting base with the center point of the positioning mounting base as the center and a preset distance as the radius, the circle corresponds to the corresponding rotation path. In this regard, the protrusion is provided with slopes on both sides corresponding to the rotation path. The slope has a corresponding slope so that the positioning bead can more smoothly reach the top of the protrusion and leave from 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 one embodiment, the slopes on both sides of the protrusion have a corresponding slope of 10°, and the slope is relatively gentle, which can make the positioning beads rise and fall smoothly when the rotating base rotates, thereby further improving the smoothness of the rotation process.

[0037] Figure 1 This is a schematic diagram of the structure of a rotating base 130 provided in an embodiment of the present application. Figure 2 for Figure 1 The schematic top view of the rotating base 130 is shown in FIG. Figure 2 The middle dashed line indicates the rotation path of the positioning beads on the surface of the rotating base 130. Figure 1 and Figure 2 The connecting pipe on the rotating base 130 is provided with a second thread 133 to connect with the speaker body. In addition, 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. As shown in the figure, the slopes can also have corresponding arcs to adapt to the rotation path, thereby further facilitating the positioning beads to cross the protrusions 131.

[0038] In addition, a corresponding conical hole 132 is provided on each protrusion 131. As shown in the figure, the conical hole 132 is located in the protrusion 131, and the opening is facing the positioning mounting seat, and the conical hole 132 gradually expands along this direction. In this regard, the conical hole 132 can provide a compression amount for the positioning bead, but the compression amount is less than the compression amount caused by the maximum height of the protrusion 131, so that when the positioning bead falls into the conical hole 132, the previous compression amount can be released to further limit the positioning bead. It can be understood that there is a corresponding conical hole 132 on the protrusion 131. When the rotation process proceeds, the positioning bead can reach the top of the protrusion 131 along the slope, and then fall into the conical hole 132, so as to limit the positioning bead, and when multiple positioning beads fall into the corresponding conical holes 132 at the same time, due to the release of the compression amount, they can hit the inside of the conical hole 132 to make a sound, which further plays the role of prompting the user.

[0039] It should be noted that, in some embodiments, a plurality of alignment pins are further provided on the other surface of the rotating base 130, and the alignment pins are used to compare 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 rotating the feed horn can make the circularly polarized wave output by the polarizer meet the initial polarization direction, and can also drive the polarizer to rotate while the rotating base 130 rotates, so as to realize the switching of the polarization direction.

[0040] In one embodiment, the connection end of the speaker body and the rotating base are connected by threads, and a seal is provided between the first thread and the second thread, so that the two can be fixed and sealed at the same time. For example, in the process of assembling the feed speaker, thread glue is applied between the first thread and the second thread, and then a corresponding colloid is formed after the thread glue is cured, and the colloid is used as a seal to fix and seal the connection end of the speaker body and the rotating base, and can effectively withstand the rotational rolling friction generated by the positioning beads when the feed speaker is rotated forward and reversed, and at the same time meet the working performance requirements under vibration and impact conditions of the whole machine.

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

[0042] In some embodiments, several sealing rings are respectively arranged between any two of the speaker body, the positioning mounting seat and the rotating base, such as sealing rings are respectively arranged between the speaker body and the positioning mounting seat, between the positioning mounting seat and the rotating base, and between the speaker body and the rotating base, so that the whole equipment installed with the feed speaker has the performance of waterproof and salt spray proof, so as to adapt to the environment of long-term outdoor work.

[0043] Figure 3 An exploded schematic diagram of a feed horn from a perspective provided by an embodiment of the present application, Figure 4 This is an exploded schematic diagram of a feed horn from another perspective provided in an embodiment of the present application, referring 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 open end of the speaker body 110 extends outward along the axial direction of the speaker body 110 to expand a preset distance, and the connection end of the speaker body 110 is connected to the rotating base 130 by a thread, such as a first thread 111 is provided on the inner side wall of the connection end of the speaker 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 matching the first thread 111, so that the connection end of the speaker body 110 and the rotating base 130 are threadedly connected through the first thread 111 and the second thread 133. Therefore, the rotating base 130 of the speaker body 110 can rotate when it is positioned relative to the positioning bead 140 and the rotating base 130 drives the speaker body 110 to rotate during the rotation process, that is, the speaker body 110 and the rotating base 130 rotate together, and when either device is rotated, the other device will also rotate accordingly. It should be noted that in this embodiment, a chamber that can accommodate the rotating base 130 is provided in the positioning mounting seat 120, and the user operates the speaker body 110 during the operation of the feed speaker, such as rotating it in any direction.

[0045] The positioning bead 140 positioning mounting seat 120 includes a through hole 122 that matches the connection end of the speaker body 110, and the positioning bead 140 positioning mounting seat 120 also includes a plurality of storage holes 121, and the plurality of storage holes 121 are respectively distributed on the peripheral side of the through hole 122, and the storage holes 121 and the through hole 122 have the same orientation, and each storage hole 121 is used to place a positioning bead 140 with a compression stroke. For example, there are 4 storage holes 121, and then the positioning beads 140 are placed respectively, wherein the orientation of the positioning beads 140 is toward the rotating base 130, that is, the rotating base 130 can abut against the positioning bead 140, and optionally, in one embodiment, by setting the storage holes 121 of corresponding depth, the rotating base 130 can compress the positioning bead 140, that is, the positioning bead 140 is compressed in the storage holes 121, and the corresponding compression amount is less than the compression stroke of the positioning bead 140. The figure also shows that a mounting hole 123 is provided on the positioning mounting seat 120, and it can be fixed to the device by corresponding screws 124 to achieve the installation of the feed horn.

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

[0047] The protrusion 131 of the rotating base 130 also includes a tapered hole 132, which is used to place the positioning bead 140 when the protrusion 131 abuts against the positioning bead 140, that is, when the user rotates the speaker body 110 to drive the rotating base 130, when the protrusion 131 rotates to the position where the positioning bead 140 is located, due to the corresponding height of the protrusion 131, as the rotation process continues, the protrusion 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, so that the positioning bead 140 is limited by the tapered hole 132. In addition, slopes are also provided on both sides of each protrusion 131, and the slopes have corresponding slopes so that the positioning bead 140 can more smoothly reach the top of the protrusion 131 and leave from the top of the protrusion 131 during the rotation of the rotating base 130.

[0048] In this regard, the connecting end of the speaker body 110 is connected to the rotating base 130 through the through hole 122 of the positioning bead 140 positioning mounting seat 120, and the corresponding positioning bead 140 is placed in the storage hole 121 of the positioning bead 140 positioning mounting seat 120, and then in the overall structure of the feed speaker, the rotating base 130 and the positioning bead 140 positioning mounting seat 120 are attached to each other, so that the positioning bead 140 is compressed during the rotation process, so that the positioning bead 140 and the rotating base 130 are abutted against each other, and during the rotation process, the positioning bead 140 can provide elastic feedback, so that the user can obtain better rotation feedback when rotating the rotating base 130 speaker body 110, which is helpful to better switch the polarization direction and effectively improve the user experience.

[0049] It is conceivable that when the user rotates the speaker body 110 and the rotating base 130 so that the rotating base 130 also rotates relative to the positioning bead 140 and the positioning mounting base 120, the positioning bead 140 is fixed relative to the rotating base 130 during the rotation of the speaker body 110. However, since a plurality of protrusions 131 are provided on the surface of the rotating base 130, when the protrusions 131 move to the position of the positioning bead 140 during the rotation of the rotating base 130, the protrusions 131 can abut against the positioning bead 140, thereby playing the role of informing the user of the current rotation progress.

[0050] Moreover, the height of the protrusion 131 is less than or equal to the compression stroke of the positioning bead 140. After the protrusion 131 on the rotating base 130 moves to the position of the positioning bead 140, the user can continue to rotate the rotating base 130 and the speaker body 110, so that the positioning bead 140 can reach the top of the protrusion 131 along the slope, and then fall into the conical hole 132, thereby achieving the limitation of the positioning bead 140, and when multiple positioning beads 140 fall into the corresponding conical holes 132 at the same time, due to the release of the compression amount, they can hit the inside of the conical hole 132 and make a sound, which further serves to remind the user.

[0051] In a satellite transceiver that uses the above-mentioned feed horn, when the user rotates the rotating base 130 and the speaker body 110 to switch the polarization direction, the entire operation process is divided into four clear sections: the first section, the left-hand polarization corresponds to leaving the left-hand high point to the 90° high point. The second section, continue to rotate to reach the 180° high point, and stably switch to right-hand. The third section, leave the right-hand high point to reach the 270° high point. The fourth section, continue to rotate to reach the 360° high point, and stably switch to left-hand. It can be seen that the entire operation process is simple and convenient, the operation time is short, and the user's learning cost is low. The user can quickly master the switching operation of the polarization direction, which effectively improves the user experience.

[0052] Figure 5 A schematic diagram of the structure of a satellite transceiver from a perspective provided for one embodiment of the present application, as shown in the figure, in one embodiment, the satellite transceiver includes a feed horn and a polarizer as described in the above embodiment, and the polarizer is connected to the rotating base in the feed horn. For example, the polarizer and the rotating base can be locked by means of screws, so that the polarizer can also rotate during the rotation of the rotating base, thereby completing the switching of the polarization direction. Moreover, the line segment with an arrow in the figure indicates the rotation direction of the feed horn, that is, the feed horn in the satellite transceiver can be rotated 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 a 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, producing 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 the reflective surface or lens to form a high-gain beam. Another example is that the feed horn produces a uniform field distribution on the aperture of the reflective surface or lens, while minimizing the power leaking from the edge to increase the gain of the antenna. In addition, the feed horn only radiates waves of the required polarization and matches the feed line to ensure efficient energy transmission. In this regard, the role of the feed horn is to convert bound electromagnetic waves into radiated electromagnetic wave energy, and the feed horn, as a weakly directional antenna, can be used to radiate the RF power from the feed line to the reflective surface in the form of electromagnetic waves, so that it produces a suitable field distribution on the aperture to form the 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 then transmit it to the feed port of the antenna; and 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 imagined that the satellite signal received by the satellite transceiver or the modulated signal to be sent are received or sent through the feed speaker. For example, in a satellite transceiver, after the feed speaker receives the satellite signal, the satellite signal is connected to the device through the feed speaker, and then the satellite transceiver amplifies and converts the received weak satellite signal, thereby connecting it to the back-end demodulator 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 the antenna can radiate, and then radiates it outward through the feed speaker. In addition, when the user needs to switch the polarization direction of the circularly polarized wave generated by the feed speaker, the user can adjust the relative position of the speaker body and the rotating base relative to the positioning mount by rotating the speaker body, thereby driving the polarizer to rotate to complete the switching of the polarization direction.

[0055] Therefore, when the user uses the satellite transceiver, the satellite transceiver can provide the user with a simple and convenient polarization direction switching operation through its structure. For example, the user can rotate the speaker body on the feed speaker to drive the rotating base to rotate, and then the polarizer also rotates. In this regard, the advantages of this solution are obvious in the application scenario of satellite portable communications. It can reduce the time required for switching and is easier to operate. In addition, during any use, the feed speaker always maintains a stable fit on the joint surface, so that it is suitable for complex electromagnetic environments and maintains a good transmit-receive axis ratio, which helps to ensure the smooth progress of satellite communications after switching the polarization direction.

[0056] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0057] Note that the above are only preferred embodiments of the present application and the technical principles used. 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, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present application. Therefore, although the present application is described in more detail through the above embodiments, the present application is not limited to the above embodiments, and may 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 in that: The feed horn comprises a horn body, a positioning mounting seat and a rotating base; The open end of the speaker body extends outward along the axial direction of the speaker body to expand a preset distance, the connection end of the speaker body is connected to the rotating base, the speaker body is used to rotate relative to the positioning mounting seat and drive the rotating base to rotate during the rotation process, and the rotating base is used to connect the polarizer; The positioning mounting seat includes a through hole matched with the connection end of the speaker body, and the positioning mounting seat also includes a plurality of placement holes, which are respectively distributed around the through hole, and the placement holes are oriented in the same direction as the through hole, and each placement hole is used to place a positioning bead with a compression stroke; A plurality of protrusions are arranged on the surface of the rotating base, and the protrusions correspond to the storage holes one by one. The height of the protrusions is less than or equal to the compression stroke of the positioning beads, and each of the protrusions is used to abut against the positioning beads placed in the corresponding storage holes.

2. The feed horn according to claim 1, characterized in that: A tapered hole is provided in each of the protrusions, and the tapered hole is used to place the positioning bead when the protrusion abuts against the positioning bead.

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

4. The feed horn according to claim 1, characterized in that: The positioning mounting seat includes four storage holes, and the four storage holes are distributed in four equal parts on a circle with the center point of the positioning mounting seat as the center point and the preset distance as the radius, and the number and position of the protrusions correspond to the storage holes.

5. The feed horn according to any one of claims 1 to 4, characterized in that: The protrusion is provided with slopes on both sides relative to the rotation path, and the rotation path is the movement track of the positioning beads on the surface of the rotating base during the rotation of the rotating base relative to the positioning mounting seat.

6. The feed horn according to claim 5, characterized in that: The slopes on both sides of the protrusion have a slope of 10°.

7. The feed horn according to claim 1, characterized in that: The inner side wall of the connecting end of the speaker body is provided with a first thread, the rotating base comprises a connecting pipe, and the outer side wall of the connecting pipe is provided with a second thread matching the first thread.

8. The feed horn according to claim 7, characterized in that: The sealing element between the first thread and the second thread is a colloid formed after the thread glue is cured.

9. The feed horn according to claim 1, 7 or 8, characterized in that: It also includes a plurality of sealing rings, which are respectively arranged between any two of the speaker body, the positioning mounting seat and the rotating base.

10. A satellite transceiver, characterized in that: It comprises the feed horn and the polarizer as described in any one of claims 1 to 9, wherein the rotating base of the feed horn is connected to the polarizer, and the rotating base is used to drive the polarizer to rotate during the rotation process.

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