Antenna

Abstract

The invention relates to the technical field of communication, and provides an antenna. The antenna comprises a reflecting plate, a phase shifter, a combiner and a radiation unit, and the phase shifter is arranged below the reflecting plate and comprises a phase shifter cavity and a phase shifting circuit arranged in the phase shifter cavity; the combiner is arranged above the reflecting plate and comprises a combiner cavity and a combining circuit arranged in the combiner cavity; the radiating unit is arranged above the reflecting plate, the phase shift circuit is connected with the combining circuit, and the combining circuit is connected with the radiating unit. By means of the arrangement, the phase shifter and the combiner are arranged separately and located on the upper side and the lower side of the reflecting plate respectively, so that the combiner and the phase shifter can be debugged and installed independently, the phase debugging difficulty is effectively reduced, the width of the cavity of the phase shifter is not limited any more, and the frequency band range application range is wider; the combiner comprises a combiner cavity and a combining circuit arranged in the combiner cavity, so that the loss of the combiner is smaller; therefore, the loss is reduced while the phase is conveniently and independently debugged.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to an antenna. Background Art

[0002] Antennas are an important part of mobile communication networks. In current cableless antennas, the conventional solution is to integrate a combiner and phase shifter, or to connect the radiation unit, reflector, combiner, and phase shifter cavity in sequence, or to connect the phase shifter in the cavity with an external microstrip line combiner. However, the solution of integrating a combiner and phase shifter has the problem of difficulty in phase debugging, and the integration of the combiner and phase shifter will cause the cavity to be widened. In high frequencies, a cavity that is too wide will produce resonance and affect electrical indicators; the solution of connecting the radiation unit, reflector, combiner, and phase shifter cavity in sequence cannot debug and install the combiner alone, and the phase shifter needs to be disassembled together; the solution of connecting the phase shifter in the cavity with an external microstrip line combiner has problems such as high loss. Summary of the invention

[0003] In order to solve the above technical problem or at least partially solve the above technical problem, the present application provides an antenna.

[0004] The present application provides an antenna, comprising:

[0005] Reflective panels;

[0006] A phase shifter is arranged below the reflector, and comprises a phase shifter cavity and a phase shifting circuit arranged in the phase shifter cavity;

[0007] A combiner, arranged above the reflector, comprising a combiner cavity and a combining circuit arranged in the combiner cavity;

[0008] The radiation unit is arranged above the reflection plate, the phase shift circuit is connected to the combining circuit, and the combining circuit is connected to the radiation unit.

[0009] Optionally, the phase shifter cavity, the reflector plate and the combiner cavity are all provided with a first through hole, and the phase shifting circuit is connected to the combining circuit through the first through hole;

[0010] The combiner cavity is provided with a second through hole, and the radiation unit is connected to the combining circuit through the second through hole.

[0011] Optionally, the radiation unit is arranged above the combiner cavity;

[0012] Alternatively, the radiation unit is arranged on one side of the combiner cavity.

[0013] Optionally, the radiation unit includes a high-frequency radiation unit and a low-frequency radiation unit;

[0014] One of the high-frequency radiation unit and the low-frequency radiation unit is arranged above the combiner cavity, and the other is arranged at one side of the combiner cavity.

[0015] Optionally, the combiner cavity is an integrated cavity structure, the combiner cavity is extended along a first direction, a plurality of the combining circuits are arranged in the combiner cavity at intervals along the first direction, and the plurality of combining circuits are respectively connected to a plurality of the radiation units;

[0016] Alternatively, the combiner cavity includes a plurality of cavity units, the plurality of cavity units are arranged at intervals along the first direction, each of the cavity units is provided with the combining circuit, and the combining circuits in the plurality of cavity units are respectively connected to the plurality of radiation units.

[0017] Optionally, the phase shifter is a group, the phase shifter cavity has at least two phase shift circuits for inputting signals of different frequency bands, and the phase shifter has at least one phase shift output port connected to the combining circuit;

[0018] Each of the radiation units includes two feeding parts, and a combining output port connected to the two feeding parts of each of the radiation units in a one-to-one correspondence is formed on the combining circuit.

[0019] Optionally, there are two groups of phase shifters, and the two groups of phase shifters are respectively connected to the two groups of combiners;

[0020] Each of the radiation units includes two feeding parts, and the two feeding parts of each of the radiation units are respectively connected to the combining circuits of the two groups of combiners in a one-to-one correspondence.

[0021] Optionally, the two groups of combiners respectively have their own combiner cavities, and the radiation unit is connected across the combiner cavities of the two groups of combiners, or the radiation unit is located between the combiner cavities of the two groups of combiners.

[0022] Optionally, two groups of combiners are integrated in the same combiner cavity.

[0023] Optionally, a power dividing circuit is connected to the combining circuit, the combining circuit is connected to the power dividing circuit, and the power dividing circuit is connected to the radiation unit.

[0024] Optionally, the combiner cavity is an annular cavity structure that is closed on all sides;

[0025] Alternatively, the combiner cavity is a semi-open cavity structure, and the combiner cavity and the reflector plate are enclosed to form a ring-shaped cavity structure that is closed on all sides.

[0026] Optionally, the combiner cavity is fixed to the reflector plate by any one of welding, fastener connection, and snap connection;

[0027] And / or, the phase shifter cavity is fixed on the reflector plate by any one of welding, fastener connection and snap connection.

[0028] Compared with the prior art, the technical solution provided by this application has at least the following advantages:

[0029] The antenna provided by the present application sets the phase shifter below the reflector and the combiner above the reflector, so that the phase shifter and the combiner are set separately and are respectively located on the upper and lower sides of the reflector, and the combiner includes a combiner cavity and a combining circuit arranged in the combiner cavity. Compared with the solution of combining and phase shifter integration, the combiner and the phase shifter can be debugged and installed separately, which effectively reduces the difficulty of phase debugging, and the width of the phase shifter cavity is no longer restricted, so that the frequency band range is more applicable, and problems such as resonance caused by the excessive width of the phase shifter cavity in high frequency are avoided; compared with the solution of sequentially connecting the radiation unit, the reflector, the combiner, and the phase shifter cavity, the combiner can be debugged and installed separately without disassembling the phase shifter together, which effectively reduces the difficulty of debugging; and the layout of the combiner is more flexible, and the layout method is not limited by the phase shifter cavity; compared with the solution of a separate external microstrip line combiner, the combiner loss of the present application is smaller; thus, the antenna provided by the present application reduces the loss while facilitating separate phase debugging. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0031] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0032] Figure 1 This is a schematic diagram of the structure of an antenna according to an embodiment of the present application;

[0033] Figure 2 This is a schematic diagram of the three-dimensional structure of the antenna according to an embodiment of the present application;

[0034] Figure 3 for Figure 2 A schematic diagram of the side view structure of the antenna shown;

[0035] Figure 4This is a schematic diagram of the three-dimensional structure of an antenna according to another embodiment of the present application;

[0036] Figure 5 for Figure 4 A schematic diagram of the side view structure of the antenna shown;

[0037] Figure 6 for Figure 4 Exploded schematic diagram of the antenna shown (in Figure 4 Added through-hole and other detailed structures on the basis of

[0038] Figure 7 for Figure 6 A schematic diagram of a partial structure of the antenna shown;

[0039] Figure 8 for Figure 6 An exploded schematic diagram of another perspective of the antenna shown;

[0040] Fig. 9 This is a schematic diagram of the three-dimensional structure of an antenna according to another embodiment of the present application;

[0041] Fig.10 for Fig. 9 A schematic diagram of the side view structure of the antenna shown;

[0042] Fig.11 This is a schematic diagram of the three-dimensional structure of an antenna according to another embodiment of the present application;

[0043] Fig.12 for Fig.11 A schematic diagram of the side view structure of the antenna shown;

[0044] Fig.13 This is a schematic diagram of the assembly structure of the radiation unit above the combiner cavity according to an embodiment of the present application;

[0045] Fig.14 This is a schematic diagram of the assembly structure of the radiation unit described in an embodiment of the present application on one side of the combiner cavity.

[0046] Wherein, 1, a reflector; 110, a first through hole;

[0047] 2. Phase shifter; 21. Phase shifter cavity; 211. First phase shifter cavity; 212. Second phase shifter cavity; 22. Phase shifting circuit; 221. First phase shifting circuit; 222. Second phase shifting circuit; 23. First polarization; 24. Second polarization;

[0048] 3. combiner; 31. combiner cavity; 310. second through hole; 311. cavity unit; 312. connecting ear; 32. combiner circuit;

[0049] 4. radiating unit; 41. feeding unit; 411. first feeding unit; 412. second feeding unit;

[0050] 5. Screws. DETAILED DESCRIPTION

[0051] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the scheme of the present application will be further described below. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0052] In the following description, many specific details are set forth to facilitate a full understanding of the present application, but the present application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present application, rather than all of the embodiments.

[0053] The antenna provided in the embodiment of the present application is exemplarily described below with reference to the accompanying drawings.

[0054] Reference Figures 1 to 14 As shown, some embodiments of the present application provide an antenna, including: a reflector 1, a phase shifter 2, a combiner 3 and a radiation unit 4.

[0055] Among them, refer to Figure 1 As shown, the phase shifter 2 is arranged below the reflecting plate 1, including a phase shifter cavity 21 and a phase shifting circuit 22 arranged in the phase shifter cavity 21; the combiner 3 is arranged above the reflecting plate 1, including a combiner cavity 31 and a combining circuit 32 arranged in the combiner cavity 31; the radiation unit 4 is arranged above the reflecting plate 1, the phase shifting circuit 22 is connected to the combining circuit 32, and the combining circuit 32 is connected to the radiation unit 4.

[0056] It should be noted that the "above" and "below" in the above embodiments are relative, and are based on the state in which the reflector 1 is placed horizontally and the radiation unit 4 is located above the reflector 1. They are only used to limit the relative position relationship between the components, and are not used to limit the specific usage status of the antenna in the embodiment of the present application.

[0057] In other words, the reflector 1 has a first surface and a second surface opposite to each other. The first surface of the reflector 1 is used to install the radiation unit 4. The first surface of the reflector 1 can also be called the front surface of the reflector 1, and the second surface of the reflector 1 can also be called the back surface of the reflector 1. The phase shifter 2 is arranged on the second surface of the reflector 1, and the combiner 3 is arranged on the first surface of the reflector 1; that is, the phase shifter 2 is arranged on the back surface of the reflector 1, and the combiner 3 is arranged on the front surface of the reflector 1. In this way, the phase shifter 2 and the combiner 3 are arranged separately and are respectively located on two opposite surfaces of the reflector 1.

[0058] In a specific implementation, the phase shifter 2 and the combiner 3 can be installed separately. Compared with the integrated solution of the combiner and phase shifter, the combiner 3 and the phase shifter 2 can be debugged and installed separately, which effectively reduces the difficulty of phase debugging, and the width of the phase shifter cavity 21 is no longer limited, so that the frequency band is more applicable, avoiding resonance and other problems caused by the phase shifter cavity 21 being too wide in high frequencies.

[0059] Exemplarily, the antenna of the embodiment of the present application can be connected in the order of the radiation unit 4, the combiner 3, the reflector 1, and the phase shifter 2, which is different from the existing scheme of connecting the radiation unit, the reflector, the combiner, and the phase shifter cavity in sequence. The antenna of the embodiment of the present application installs the phase shifter 2 and the combiner 3 separately and installs them on both sides of the reflector 1 respectively, so that the combiner 3 can be debugged and installed separately without disassembling the phase shifter 2 together, which effectively reduces the difficulty of debugging; and the layout of the combiner 3 is more flexible, and the layout method is not limited by the phase shifter cavity 21, which is conducive to reducing costs. Of course, the installation order of the various components of the antenna is not limited to the above-mentioned limitations. As long as the above-mentioned structure of the embodiment of the present application is adopted, the phase shifter 2 and the combiner 3 are installed separately, so that the combiner 3 can be debugged and installed separately.

[0060] Specifically, the phase shifter 2 has a phase shifting function, and the phase shifter 2 includes a phase shifter cavity 21 and a phase shifting circuit 22 disposed in the phase shifter cavity 21; the phase shifting circuit 22 may specifically be a stripline with a phase shifting function. The combiner 3 has a filtering function, and the combiner 3 includes a combiner cavity 31 and a combining circuit 32 disposed in the combiner cavity 31; the combining circuit 32 may specifically be a stripline with a filtering function.

[0061] The phase shift circuit 22 is connected to the combining circuit 32, and the combining circuit 32 is connected to the radiation unit 4. The signal is input from the phase shift circuit 22, and is transmitted to the combining circuit 32 after being phase shifted by the phase shift circuit 22, and is transmitted to the radiation unit 4 after being filtered by the combining circuit 32.

[0062] Optionally, the phase shift circuit 22 and the combining circuit 32 may be electrically connected or coupled; the combining circuit 32 and the radiation unit 4 may be electrically connected or coupled. The electrical connection may be a welding electrical connection, a plug-in electrical connection, etc. The coupling connection means that there is no direct contact between the two conductive parts (for example, a gap or an insulating medium is provided), but energy can be transmitted between the two parts. Common coupling methods include capacitive coupling, photoelectric coupling, transformer coupling, etc.

[0063] In a specific implementation, the antenna provided in the embodiment of the present application, the combiner 3 includes a combiner cavity 31 and a combining circuit 32 arranged in the combiner cavity 31. Compared with the existing solution of a separate external microstrip line combiner, the combiner 3 of the present application has smaller loss, thereby effectively solving the problem of high loss in the existing solution of a separate external microstrip line combiner.

[0064] The antenna provided in the above embodiment of the present application, by arranging the phase shifter 2 below the reflector 1 and the combiner 3 above the reflector 1, realizes that the phase shifter 2 and the combiner 3 are separately arranged and are respectively located on the upper and lower sides of the reflector 1, and the combiner 3 includes a combiner cavity 31 and a combiner circuit 32 arranged in the combiner cavity 31. Compared with the integrated combiner and phase shifter solution, the combiner 3 and the phase shifter 2 can be debugged and installed separately, which effectively reduces the difficulty of phase debugging, and the width of the phase shifter cavity 21 is no longer limited, so that the frequency band range is more suitable. The invention can avoid resonance and other problems caused by the phase shifter cavity 21 being too wide in high frequency; compared with the solution in which the radiation unit, the reflector, the combiner, and the phase shifter cavity are connected in sequence, the combiner 3 can be debugged and installed separately without disassembling the phase shifter 2 together, which effectively reduces the debugging difficulty; and the layout of the combiner 3 is more flexible, and the layout method is not limited by the phase shifter cavity 21; compared with the solution of a separate external microstrip line combiner, the combiner 3 of the present application has smaller loss; thus, the antenna provided in the above embodiment of the present application reduces the loss while facilitating the separate debugging of the phase.

[0065] In some embodiments, reference Figure 6 and Figure 7 As shown, the phase shifter cavity 21 , the reflector 1 and the combiner cavity 31 are all provided with a first through hole 110 , and the phase shifting circuit 22 is connected to the combiner circuit 32 via the first through hole 110 .

[0066] In a specific implementation, the first through holes 110 on the phase shifter cavity 21, the reflector 1, and the combiner cavity 31 can be arranged correspondingly up and down, so that at least one of the phase shift circuit 22 and the combiner circuit 32 passes through and is connected to the other. Exemplarily, the phase shift circuit 22 passes through the first through hole 110 on the phase shifter cavity 21, the first through hole 110 on the reflector 1, and the first through hole 110 on the combiner cavity 31 and then extends into the combiner cavity 31, and then the phase shift circuit 22 is connected to the combiner circuit 32 located in the combiner cavity 31.

[0067] In a specific implementation, the connection mode of the phase shift circuit 22 and the combining circuit 32 may be an electrical connection or a coupling connection, etc. The electrical connection mode may be a welding electrical connection. When the phase shift circuit 22 and the combining circuit 32 are connected by welding, a welding hole is provided on at least one of the phase shifter cavity 21 and the combiner cavity 31, so as to facilitate welding operation of the phase shift circuit 22 and the combining circuit 32 through the position of the welding hole.

[0068] In some embodiments, reference Figure 6 and Figure 7 As shown, a second through hole 310 is provided on the combiner cavity 31 , and the radiation unit 4 is connected to the combining circuit 32 through the second through hole 310 .

[0069] In a specific implementation, the radiation unit 4 can extend into the combiner cavity 31 through the second through hole 310 and be connected to the combining circuit 32 located in the combiner cavity 31; the combining circuit 32 can also extend from the combiner cavity 31 through the second through hole 310 and be connected to the radiation unit 4.

[0070] In a specific implementation, the connection mode of the radiation unit 4 and the combining circuit 32 can be a coupling connection. Exemplarily, the radiation unit 4 has a feeding portion 41 (or a feeding branch), and the feeding portion 41 of the radiation unit 4 passes through the second through hole 310 on the combiner cavity 31 to be coupled with the combining circuit 32 located in the combiner cavity 31. Of course, the radiation unit 4 and the combining circuit 32 can also be connected in other connection modes.

[0071] In some embodiments, reference Figures 1 to 10 As shown, the radiation unit 4 is arranged above the combiner cavity 31. In other embodiments, referring to Fig.11 and Fig.12 As shown, the radiation unit 4 is disposed on one side of the combiner cavity 31. That is, the radiation unit 4 can be disposed above the combiner cavity 31, or can be disposed on one side of the combiner cavity 31.

[0072] For the solution in which the radiation unit 4 is arranged above the combiner cavity 31, the radiation unit 4 can be plugged downward into the combiner cavity 31. Fig.13 As shown, the radiation unit 4 has a feeding portion 41 (or a feeding branch) extending downward, and the feeding portion 41 of the radiation unit 4 passes through the second through hole 310 on the combiner cavity 31 to be coupled with the combining circuit 32 located in the combiner cavity 31.

[0073] For the scheme in which the radiation unit 4 is arranged on one side of the combiner cavity 31, the connection form between the radiation unit 4 and the combiner circuit 32 is as follows: Fig.14As shown, a section of the feeding circuit can be directly extended through the combining circuit 32 to connect to the radiation unit 4, or the feeding part 41 of the radiation unit 4 can be bent and connected to the combining circuit 32, or an adapter can be connected between the combining circuit 32 and the radiation unit 4 to realize the connection between the radiation unit 4 and the combining circuit 32 through the adapter.

[0074] Of course, the connection form between the radiation unit 4 and the combiner circuit 32 is not limited to the above definition and can be reasonably set according to actual needs.

[0075] In addition, the antenna usually includes multiple radiation units 4, and the multiple radiation units 4 are not limited to being all located above the combiner cavity 31, or all located on one side of the combiner cavity 31. It can also be that some radiation units 4 are located above the combiner cavity 31, and some radiation units 4 are located on one side of the combiner cavity 31.

[0076] In some embodiments, the radiation unit 4 includes a high-frequency radiation unit and a low-frequency radiation unit; one of the high-frequency radiation unit and the low-frequency radiation unit is arranged above the combiner cavity 31, and the other is arranged on one side of the combiner cavity 31.

[0077] Exemplarily, the high-frequency radiation unit is arranged on one side of the combiner cavity 31 , and the low-frequency radiation unit is arranged above the combiner cavity 31 ; or, the low-frequency radiation unit is arranged on one side of the combiner cavity 31 , and the high-frequency radiation unit is arranged above the combiner cavity 31 .

[0078] It should be noted that the heights of the high-frequency radiation unit and the low-frequency radiation unit are generally different. Through the above settings, the relative position of the radiation unit 4 and the combiner cavity 31 can be set accordingly according to the height of the radiation unit 4, making the layout of multiple radiation units 4 more reasonable.

[0079] In some embodiments, reference Figures 1 to 12 As shown, the antenna generally includes a plurality of radiation units 4, and the plurality of radiation units 4 are generally arranged in an array on the reflector 1. Taking one column of radiation units 4 as an example, the column of radiation units 4 includes a plurality of radiation units 4, and the plurality of radiation units 4 are arranged on the reflector 1 at intervals along the first direction. In other words, a plurality of radiation units 4 are arranged on the reflector 1 at intervals along the first direction. A plurality of combining circuits 32 are arranged in the combiner cavity 31 of the combiner 3, and the plurality of combining circuits 32 are respectively arranged corresponding to and connected to the plurality of radiation units 4 in a column.

[0080] In some embodiments, reference Figure 2 and Figure 3As shown, the combiner cavity 31 is an integrated cavity structure, the combiner cavity 31 is extended along the first direction, a plurality of combining circuits 32 are arranged in the combiner cavity 31 at intervals along the first direction, and the plurality of combining circuits 32 are respectively connected to the plurality of radiation units 4.

[0081] That is to say, a plurality of combining circuits 32 are arranged in the same combiner cavity 31 , and such arrangement can reduce the number of combiner cavities 31 and facilitate the installation and fixation of the combiner cavity 31 on the reflector 1 .

[0082] In some embodiments, reference Figures 4 to 8 As shown, the combiner cavity 31 includes a plurality of cavity units 311 , which are arranged at intervals along the first direction, and a combining circuit 32 is arranged in each cavity unit 311 , and the combining circuits 32 in the plurality of cavity units 311 are respectively connected to the plurality of radiation units 4 .

[0083] That is to say, the combiner cavity 31 is divided into a plurality of cavity units 311. Such a configuration can reduce the sum of the lengths of the plurality of cavity units 311, thereby reducing costs. Moreover, in this solution, a certain combiner circuit 32 can be debugged separately, and only the radiation unit 4 corresponding to the combiner circuit 32 needs to be disassembled, without changing other radiation units 4 and the combiner circuit 32, making the debugging of the combiner 3 more convenient. In addition, by dividing the combiner cavity 31 into a plurality of cavity units 311, the length and layout of the combiner cavity 31 are not restricted by the length and layout of the phase shifter cavity 21, so the layout is more flexible and the cost is lower.

[0084] In some embodiments, reference Figures 1 to 8 As shown, the antenna is a single-polarized antenna, the phase shifter 2 is a group, the phase shifter cavity 21 has at least two phase shift circuits 22 with different frequency band signal inputs, the phase shifter 2 has at least one phase shift output port connected to the combining circuit 32; each radiation unit 4 includes two feeding parts 41, and the combining circuit 32 is formed with a combining output port connected to the two feeding parts 41 of each radiation unit 4 in a one-to-one correspondence.

[0085] Exemplarily, the antenna includes a group of phase shifters 2, and the phase shifter 2 has two phase shift circuits 22 with signal inputs in different frequency bands, namely, a first phase shift circuit 221 and a second phase shift circuit 222. Specifically, the first phase shift circuit 221 can be a first strip line, and the second phase shift circuit 222 can be a second strip line. The first strip line and the second strip line have a phase shift function; the combining circuit 32 can be a third strip line, and the third strip line has a filtering function. The signal is input from the first strip line and the second strip line, and at least one output port of the first strip line and the second strip line is connected to the third strip line, and is connected to two feeding parts 41 (the first feeding part 411 and the second feeding part 412, respectively) of the radiation unit 4 through the third strip line output.

[0086] It should be noted that the first phase shift circuit 221 and the second phase shift circuit 222 can be respectively located in two phase shifter cavities 21, that is, a set of phase shifters 2 includes two phase shifter cavities 21, namely the first phase shifter cavity 211 and the second phase shifter cavity 212, the first phase shifter cavity 211 is provided with the first phase shift circuit 221, and the second phase shifter cavity 212 is provided with the second phase shift circuit 222. The first phase shifter cavity 211 and the second phase shifter cavity 212 can be arranged in close contact, or can be arranged at intervals to leave space for other structural parts between the two cavities.

[0087] In some embodiments, reference Figures 9 to 12 As shown, the antenna is a dual-polarized antenna, and the phase shifters 2 are two groups, namely the first polarization 23 and the second polarization 24. The two groups of phase shifters 2 are respectively connected to the two groups of combiners 3; each radiation unit 4 includes two feeding parts 41, and the two feeding parts 41 of each radiation unit 4 are respectively connected to the combining circuits 32 of the two groups of combiners 3.

[0088] In some embodiments, reference Fig. 9 and Fig.10 As shown, the two groups of combiners 3 have their own combiner cavities 31, and the radiation unit 4 is connected across the top of the combiner cavities 31 of the two groups of combiners 3. Such arrangement facilitates the two feeding parts 41 of the radiation unit 4 to be connected to the combining circuit 32 in the combiner cavities 31 of the two groups of combiners 3 respectively; and the radiation unit 4 is connected across the top of the combiner cavities 31 of the two groups of combiners 3 to save the space occupied by the radiation unit 4 and the combiner 3 on the reflector 1, so as to facilitate the arrangement of multiple radiation units 4 on the reflector 1.

[0089] In the specific implementation, refer to Fig.10As shown, two groups of combiners 3 can be arranged side by side and spaced apart along the second direction, and the second direction can be perpendicular to the first direction. The spacing between the two combiners 3 can be smaller than the width of the radiation unit 4 along the second direction, and the two feeding parts 41 of the radiation unit 4 are respectively located above the combiner cavities 31 of the two combiners 3, and can respectively pass through the through holes on the corresponding combiner cavities 31 to be connected to the combining circuit 32 in the corresponding combiner cavities 31.

[0090] In some embodiments, reference Fig.11 and Fig.12 As shown, the two groups of combiners 3 have their own combiner cavities 31, and the radiation unit 4 is located between the combiner cavities 31 of the two groups of combiners 3. In this way, the two feeding parts 41 of the radiation unit 4 can be connected to the combining circuits 32 in the combiner cavities 31 of the two groups of combiners 3.

[0091] In a specific implementation, two groups of combiners 3 can be arranged side by side and spaced apart along the second direction, and the second direction can be perpendicular to the first direction. The spacing between the two combiners 3 can be greater than the width of the radiation unit 4 along the second direction, and the radiation unit 4 is located between the combiner cavities 31 of the two combiners 3.

[0092] Specifically, refer to Fig.12 As shown, the connection form between the radiation unit 4 and the combining circuit 32 can be that a section of the feeding circuit is directly extended through the combining circuit 32 to connect to the radiation unit 4, or the feeding part 41 of the radiation unit 4 is bent and connected to the combining circuit 32, or an adapter is connected between the combining circuit 32 and the radiation unit 4 to realize the connection between the radiation unit 4 and the combining circuit 32 through the adapter.

[0093] In addition, the radiation unit 4 is located between two combiner cavities 31, not limited to between two columns of combiner cavities 31, but can also be between two combiner cavities 31 in the same column. For example, when they are in the same column, in this case, the combiner cavities 31 in the same column include a plurality of cavity units 311 arranged at intervals, and the radiation unit 4 can be located between two adjacent cavity units 311.

[0094] In some embodiments, two groups of combiners 3 are integrated in the same combiner cavity 31. That is, the combining circuits 32 of the two groups of combiners 3 are arranged in the same combiner cavity 31. In this arrangement, the two feeding parts 41 of the radiation unit 4 can also be connected to the combining circuits 32 of the two groups of combiners 3 respectively. In this embodiment, the radiation unit 4 can be located above the combiner cavity 31, or on one side of the combiner cavity 31.

[0095] In some embodiments, a power splitter circuit is connected to the combiner circuit 32, the combiner circuit 32 is connected to the power splitter circuit, and the power splitter circuit is connected to the radiation unit 4. With this arrangement, after the signal is filtered by the combiner circuit 32, the power is distributed by the power splitter circuit, and the signal is connected to the radiation unit 4 from at least two output ports, that is, the combiner and power splitter functions are integrated into one.

[0096] In some embodiments, reference Figures 1 to 14 As shown, the combiner cavity 31 is a ring-shaped cavity structure that is closed on all sides. That is to say, the combiner cavity 31 itself is constructed as a ring-shaped cavity structure that is closed on all sides, and the combining circuit 32 is arranged in the ring-shaped cavity structure. Such a configuration facilitates the installation of the combiner cavity 31 as an independent cavity structure on the reflector 1, which is not only conducive to the installation of the combining circuit 32 in the combiner cavity 31, but also conducive to adjusting the installation position of the combiner cavity 31 on the reflector 1 as needed.

[0097] In some embodiments, the combiner cavity 31 is a semi-open cavity structure, and the combiner cavity 31 and the reflector 1 are enclosed to form a ring-shaped cavity structure with four sides closed. In other words, the combiner cavity 31 and the reflector 1 are together constructed to form a ring-shaped cavity structure with four sides closed, and the combining circuit 32 is arranged in the ring-shaped cavity structure. Such an arrangement can reduce the material consumption of the combiner cavity 31 and reduce the material cost.

[0098] In some embodiments, the phase shifter cavity 21 and the combiner cavity 31 are both fixed on the reflector 1. There are many ways to fix the phase shifter cavity 21 and the combiner cavity 31 on the reflector 1. Specifically, the combiner cavity 31 can be fixed on the reflector 1 by any of welding, fastener connection, and snap connection. The phase shifter cavity 21 can also be fixed on the reflector 1 by any of welding, fastener connection, and snap connection.

[0099] For example, refer to Figure 6 and Figure 7As shown, taking the combiner cavity 31 as an example, the first method is to directly weld the combiner cavity 31 to the reflector 1 by laser welding. This method can only disassemble the combiner circuit 32 in the combiner cavity 31, and does not affect the phase adjustment of the combiner 3; the second method is that the side wall of the combiner cavity 31 has a plurality of connecting ears 312 on which rivets or screws 5 can be installed, the connecting ears 312 are tightly fitted with the reflector 1, and the reflector 1 is provided with connecting holes at positions corresponding to the connecting ears 312. The combiner cavity 31 is fastened to the reflector 1 by means of rivets or screws 5 inserted in the connecting ears 312 and the corresponding connecting holes; the third method is that a plurality of buckles are installed on the combiner cavity 31, and the reflector 1 is provided with buckle holes corresponding to the buckles, and the combiner cavity 31 is fastened to the reflector 1 by means of buckles. In the latter two methods, the combiner cavity 31 can be completely disassembled to facilitate adjustment of the position of the combiner cavity 31.

[0100] It should be noted that the phase shifter cavity 21 can be fixed on the reflector 1 in the same manner as the combiner cavity 31 , which will not be described in detail herein.

[0101] In some embodiments, the radiation unit 4, the combiner 3, the reflector 1 and the phase shifter 2 can all be assembled on a production line. Alternatively, the combiner 3 and the radiation unit 4 can be prefabricated and installed together in advance, and then the combiner 3 and the radiation unit 4 can be assembled as a whole with other structural components of the antenna on a production line, which is conducive to improving the assembly efficiency of the whole machine.

[0102] To summarize, compared with the existing integrated phase shifter and combiner solution, the antenna provided by the present application has a phase shifter cavity width that is no longer restricted and is applicable to a wider frequency band range; compared with the solution in which the combiner and phase shifter cavities are both located below the reflector, the combiner can be debugged and installed separately without the need to disassemble the phase shifter unit together; the combiner cavity can be divided into multiple cavity units, and the length and layout of the cavity are not restricted by the length of the phase shifter cavity, so the layout is more flexible and the cost is lower; compared with the solution in which the phase shifter cavity is below the reflector and the combining microstrip line is located above the reflector, the stripline combiner has lower losses.

[0103] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article 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, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0104] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An antenna, characterized in that: include: Reflective panels; A phase shifter is arranged below the reflector, and comprises a phase shifter cavity and a phase shifting circuit arranged in the phase shifter cavity; A combiner, arranged above the reflector, comprising a combiner cavity and a combining circuit arranged in the combiner cavity; The radiation unit is arranged above the reflection plate, the phase shift circuit is connected to the combining circuit, and the combining circuit is connected to the radiation unit.

2. The antenna according to claim 1, characterized in that The phase shifter cavity, the reflector plate and the combiner cavity are all provided with a first through hole, and the phase shifting circuit is connected to the combining circuit through the first through hole; The combiner cavity is provided with a second through hole, and the radiation unit is connected to the combining circuit through the second through hole.

3. The antenna according to claim 1, characterized in that The radiation unit is arranged above the combiner cavity; Alternatively, the radiation unit is arranged on one side of the combiner cavity.

4. The antenna according to claim 1, characterized in that: The radiation unit includes a high-frequency radiation unit and a low-frequency radiation unit; One of the high-frequency radiation unit and the low-frequency radiation unit is arranged above the combiner cavity, and the other is arranged at one side of the combiner cavity.

5. The antenna according to claim 1, characterized in that The combiner cavity is an integrated cavity structure, the combiner cavity is extended along a first direction, a plurality of the combining circuits are arranged in the combiner cavity at intervals along the first direction, and the plurality of combining circuits are respectively connected to the plurality of the radiation units; Alternatively, the combiner cavity includes a plurality of cavity units, the plurality of cavity units are arranged at intervals along the first direction, each of the cavity units is provided with the combining circuit, and the combining circuits in the plurality of cavity units are respectively connected to the plurality of radiation units.

6. The antenna according to claim 1, characterized in that The phase shifter is a group, the phase shifter cavity has at least two phase shift circuits for inputting signals of different frequency bands, and the phase shifter has at least one phase shift output port connected to the combining circuit; Each of the radiation units includes two feeding parts, and a combining output port connected to the two feeding parts of each of the radiation units in a one-to-one correspondence is formed on the combining circuit.

7. The antenna according to claim 1, characterized in that: There are two groups of phase shifters, and the two groups of phase shifters are respectively connected to the two groups of combiners; Each of the radiation units includes two feeding parts, and the two feeding parts of each of the radiation units are respectively connected to the combining circuits of the two groups of combiners in a one-to-one correspondence.

8. The antenna according to claim 7, characterized in that: The two groups of combiners respectively have their own combiner cavities, and the radiation unit is connected across the combiner cavities of the two groups of combiners, or the radiation unit is located between the combiner cavities of the two groups of combiners.

9. The antenna according to claim 7, characterized in that: The two groups of combiners are integrated in the same combiner cavity.

10. The antenna according to any one of claims 1 to 9, characterized in that: The combining circuit is connected to a power dividing circuit, the combining circuit is connected to the power dividing circuit, and the power dividing circuit is connected to the radiation unit.

11. The antenna according to any one of claims 1 to 9, characterized in that: The combiner cavity is a ring-shaped cavity structure that is closed on all sides; Alternatively, the combiner cavity is a semi-open cavity structure, and the combiner cavity and the reflector plate are enclosed to form a ring-shaped cavity structure that is closed on all sides.

12. The antenna according to any one of claims 1 to 9, characterized in that: The combiner cavity is fixed to the reflector plate by any one of welding, fastener connection and snap connection; And / or, the phase shifter cavity is fixed on the reflector plate by any one of welding, fastener connection and snap connection.

Images