A radio frequency connector and communication device

Abstract

A radio frequency (RF) connector and communication device are disclosed. The RF connector includes: a first interface, a housing, a first inner conductor, one or more transmission zero-point structures, a second interface, and the housing having a receiving cavity that houses the first inner conductor and the transmission zero-point structures. The first inner conductor includes a plurality of high-resistance conductors and a plurality of low-resistance conductors, wherein the resistance of the high-resistance conductors is higher than that of the low-resistance conductors, and the first inner conductor is coaxial with the receiving cavity. At least one transmission zero-point structure has a gap with the first inner conductor; and / or, at least one transmission zero-point structure is disposed on one of the plurality of low-resistance conductors, and at least one transmission zero-point structure has a gap with the low-resistance conductors other than the first low-resistance conductor. The solution provided by the embodiments of this application can reduce the size of RF connectors with low-pass filtering function.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a radio frequency connector and communication device. Background Technology

[0002] Currently, low-pass filtering in wireless base stations is mainly achieved through metal cavity filters. A metal cavity filter is a "string of hawthorns" structure integrated into the top cover structure and welded to the passband filter. Metal cavity filters are relatively large, making it difficult to support the evolution of products towards miniaturization and lower costs. Summary of the Invention

[0003] This application provides an RF connector and communication device that can reduce the size of devices with low-pass filtering function.

[0004] In a first aspect, a radio frequency connector is provided, comprising: a first interface, a housing, a first inner conductor, one or more transmission zero structures, and a second interface. The housing is made of metal and has a receiving cavity, which houses the first inner conductor and the transmission zero structures. The first inner conductor includes a plurality of high-resistance conductors and a plurality of low-resistance conductors, wherein the resistance of the high-resistance conductors is higher than the resistance of the low-resistance conductors, and the first inner conductor is coaxial with the receiving cavity. The first interface is electrically connected to one end of the housing, and the second interface is electrically connected to the other end of the housing. The first interface is used for inputting and / or outputting signals, and the second interface is used for inputting and / or outputting signals. At least one transmission zero structure has a gap with the first inner conductor. And / or, at least one transmission zero structure is disposed on one of the plurality of low-resistance conductors, the first low-resistance conductor, and there is a gap between the at least one transmission zero structure and the low-resistance conductors other than the first low-resistance conductor among the plurality of low-resistance conductors.

[0005] An RF connector with RF connectivity includes a metal housing. A first inner conductor is housed within a cavity formed by the housing, enabling the RF connector to also provide low-pass filtering. Improving the first inner conductor's suppression of out-of-band signals requires increasing its order, which in turn increases the size of the RF connector. In contrast, incorporating one or more transmission zero structures within the cavity, with a gap between the transmission zero structures and the first inner conductor, can improve the RF connector's selectivity for specific frequency signals and its suppression of out-of-band signals. Alternatively, incorporating transmission zero structures with gaps between them can reduce the size of an RF connector with some low-pass filtering performance.

[0006] For example, the first inner conductor is a "candied hawthorn skewer" structure.

[0007] For example, the transmission zero-point structure is a structure of arbitrary shape.

[0008] For example, the transmission zero-point structure is integrally formed with the first inner conductor; or, the transmission zero-point structure is welded to the first inner conductor; or, there is a gap between the transmission zero-point structure and the first inner conductor.

[0009] In the embodiments of this application, containment can be used interchangeably with setting / including and expresses the same meaning.

[0010] For example, in the embodiments of this application, the housing cavity housing the first inner conductor and the transmission zero-point structure can be interchanged with the housing cavity being provided with / included the first inner conductor and the transmission zero-point structure and have the same meaning.

[0011] Based on the solution provided in the embodiments of this application, by setting a first inner conductor and a transmission zero structure with a gap between the first inner conductor in the housing cavity of the RF connector, on the one hand, the RF connection function and the low-pass filtering function are integrated into the RF connector, which can realize the multi-functionality of the RF connector; on the other hand, the device where the low-pass filtering function is located has the connector's plug-in and plug-out interoperability, which facilitates the plug-in and plug-out installation of the device where the low-pass filtering function is located; and on yet another aspect, the size of the RF connector with low-pass filtering function can be reduced.

[0012] In some possible implementations, the cavity also contains a medium located between the outer wall of the first inner conductor and the cavity; the dielectric constant Dk of the medium satisfies: Dk is greater than or equal to 4; and / or, the dielectric loss factor Df of the medium satisfies: Df is less than or equal to 1 / 1000.

[0013] For example, the RF connector also contains a dielectric material with a higher Dk and / or a lower Df. Compared to a lower Dk, containing a dielectric material with a higher Dk can reduce the size of devices with certain low-pass filtering performance; compared to a higher Df, containing a dielectric material with a lower Df can reduce the power loss of devices with low-pass filtering function.

[0014] In the embodiments of this application, "containing medium within the containment cavity" can be interchanged with "containing / allocated medium within the containment cavity" and have the same meaning; "also containing medium within the containment cavity" can be interchanged with "also disposed / allocated medium within the containment cavity" and have the same meaning.

[0015] Based on the solution provided in the embodiments of this application, by providing a medium with a higher Dk and / or a lower Df in the housing cavity, the size of the RF connector with low-pass filtering function can be reduced, and / or the power loss of the RF connector with low-pass filtering function can be reduced.

[0016] In some possible implementations, the RF connector also includes a socket; the first interface is used for inputting and / or outputting signals, including: the socket being plugged into and unplugged from the first interface, a signal being input from the socket to the first interface, and / or a signal being input from the first interface to the socket.

[0017] For example, the first interface of the RF connector is plugged into and disconnected from the socket, which is connected to other devices for signal transmission, enabling signal transmission from other devices to the RF connector.

[0018] In some possible implementations, the RF connector further includes a second inner conductor housed within a receiving cavity; the socket is plugged into and detached from the first interface, including plugging into and detaching the socket from the first interface and the second inner conductor.

[0019] For example, the second inner conductor and the first interface together enable plug-in connection with the socket.

[0020] In the embodiments of this application, the second inner conductor is housed within the receiving cavity, which can be interchanged with and expresses the same meaning as "the second inner conductor is disposed / included within the receiving cavity".

[0021] In some possible implementations, the first inner conductor is electrically connected to the second inner conductor; the axis of the second inner conductor is not parallel to the axis of the first inner conductor; or, the axis of the second inner conductor is parallel to the axis of the first inner conductor.

[0022] For example, the second inner conductor and the first inner conductor are integrally formed or welded together. The second inner conductor and the first inner conductor are coaxial, or they are not parallel (e.g., the angle between the axes of the second and first inner conductors is acute). When the second and first inner conductors are coaxial, the RF connector can be understood as a straight RF connector; when the second and first inner conductors are not parallel, the RF connector can be understood as a bent RF connector. The straight or bent nature of the RF connector can be flexibly configured according to product needs and / or production requirements.

[0023] Based on the solution provided in the embodiments of this application, the shape of the radio frequency connector can be flexibly designed by setting different positions of the first inner conductor and the second inner conductor.

[0024] In some possible implementations, at least one transmission zero structure is of the n-word type.

[0025] For example, the transmission zero structure can be a right angle or an n-shape.

[0026] Based on the solution provided in the embodiments of this application, by designing the shape of the transmission zero-point structure to be easy to process and / or assemble, the complexity of the processing of the RF connector can be reduced.

[0027] In some possible implementations, at least one transmission zero structure satisfies an interference fit with the first low-resistance conductor.

[0028] Based on the solution provided in the embodiments of this application, the spatial stability of the transmission zero-point structure can be improved by setting the transmission zero-point structure and the first low-resistance conductor to satisfy interference fit.

[0029] In a second aspect, a communication device is provided, the communication device including a radio frequency connector, the radio frequency connector being the radio frequency connector in the first aspect or any possible implementation of the first aspect.

[0030] In some possible implementations, the communication device also includes a receiver for receiving signals; and / or a transmitter for transmitting signals.

[0031] In some possible implementations, the communication device also includes a transceiver for receiving or sending signals, and a processor for processing the signals.

[0032] In some possible implementations, the communication device also includes a board and an antenna, with an RF connector used to connect the board and the antenna.

[0033] For example, the single board is provided with components for processing signals.

[0034] For example, after being processed by the component, the signal is transmitted to the antenna via the RF connector and radiated out by the antenna; and / or, the signal received by the antenna is transmitted to the component via the RF connector, and the component processes the signal.

[0035] In some possible implementations, the communication device is a base station.

[0036] The possible implementation and beneficial effects of the second aspect of the above-mentioned solution can be found in the specific description of the first aspect or any possible implementation method in the first aspect. For the sake of brevity, they will not be repeated here. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of a metal cavity filter.

[0038] Figure 2 This is a schematic diagram of a radio frequency connector applicable to an embodiment of this application.

[0039] Figure 3 This is a cross-sectional schematic diagram of a straight radio frequency connector applicable to embodiments of this application.

[0040] Figure 4 This is a cross-sectional schematic diagram of a bent radio frequency connector applicable to embodiments of this application.

[0041] Figure 5 This is a schematic diagram illustrating the fabrication of a radio frequency connector applicable to embodiments of this application.

[0042] Figure 6 This is a schematic diagram illustrating the fabrication of another radio frequency connector applicable to embodiments of this application.

[0043] Figure 7 This is a schematic diagram of a communication device applicable to an embodiment of this application. Detailed Implementation

[0044] The technical solutions of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort should fall within the scope of protection of this application.

[0045] Before introducing the embodiments of this application, the following points should be noted.

[0046] In this application, the words "exemplarily," "for example," etc., are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as an "example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the word "example" is intended to present concepts in a concrete manner. In the embodiments of this application, "of," "corresponding, relevant," and "corresponding" may sometimes be used interchangeably, and it should be noted that their intended meanings are consistent unless their distinction is emphasized.

[0047] The business scenarios described in the embodiments of this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0048] References such as "in some possible implementations" as used in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, phrases such as "in some possible implementations" appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless otherwise specifically emphasized.

[0049] In this application, "at least one" means one or more, and "more than one" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A alone, A and B simultaneously, and B alone, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple.

[0050] In this application, terms such as "first," "second," "#1," and "#2" are used merely for descriptive convenience to distinguish objects and are not intended to limit the scope of the embodiments of this application. They are not used to describe the order or sequence of features. It should be understood that such described objects can be interchanged where appropriate to describe solutions other than those in the embodiments of this application.

[0051] Currently, low-pass filtering on wireless base stations is mainly achieved through metal cavity filters. A metal cavity filter is a "string of candied hawthorns" structure integrated into the upper cover structure and welded to the passband filter.

[0052] Figure 1 This is a schematic diagram of a metal cavity filter. Figure 1 As shown, the metal cavity filter includes a metal cavity and a conductor structure housed / installed / included within the metal cavity. This metal cavity filter is a coaxial low-pass filter. The conductor structure is an LC series structure formed by inductors L and capacitors C connected in series, which can also be called a "string of candied hawthorns" structure. The "candied hawthorns" with lower resistance form capacitors, and the "stems" with higher resistance between the "candied hawthorns" form inductors. The metal cavity filter uses air or a material with a high dielectric constant (Dk) as the filling medium to fill the cavity.

[0053] To meet communication requirements, the "string of candied hawthorns" structure of a metal cavity filter filled with a high-Dk dielectric is typically 9th order, while the "string of candied hawthorns" structure of an air-filled metal cavity filter is typically 9th order or higher. The order of the "string of candied hawthorns" structure is determined by the number of inductors and capacitors connected in series. For example, Figure 1 The "candied hawthorn string" structure shown includes 4 capacitors and 5 inductors, and its order is 9.

[0054] Metal cavity filters that house / contain / include air or media with high Dk are large in size, making it difficult to support the evolution of products towards miniaturization and low cost.

[0055] Alternatively, a low-pass filter can be implemented on a PCB by varying the impedance of the PCB, thus creating a board-level filter. However, the smaller impedance (Dk) of the PCB results in a larger size for the board-level filter. Furthermore, the larger dissipation factor (Df) of the PCB leads to higher insertion loss in the board-level filter, and the fabrication of high-impedance lines for the board-level filter is challenging in high-power applications.

[0056] This application provides an RF connector and communication device that can reduce the size of devices with low-pass filtering function.

[0057] Figure 2 This is a schematic diagram of a radio frequency connector applicable to an embodiment of this application.

[0058] like Figure 2 As shown, the RF connector includes: a first interface, a housing, a first inner conductor, one or more transmission zero structures, and a second interface. The housing is made of metal and has a receiving cavity that houses the first inner conductor and the transmission zero structures. The first inner conductor includes multiple high-resistance conductors and multiple low-resistance conductors, with the resistance of the high-resistance conductors being higher than that of the low-resistance conductors. The first inner conductor is coaxial with the receiving cavity. The first interface is electrically connected to one end of the housing, and the second interface is electrically connected to the other end of the housing. The first interface is used for inputting and / or outputting signals, and the second interface is used for inputting and / or outputting signals. At least one transmission zero structure has a gap with the first inner conductor. And / or, at least one transmission zero structure is disposed on one of the multiple low-resistance conductors, specifically the first low-resistance conductor, and at least one transmission zero structure has a gap with the other low-resistance conductors among the multiple low-resistance conductors.

[0059] The first and second interfaces of the RF connector are used to implement RF connection functions. For example, the first interface is used for signal connection with a component that processes signals, and the second interface is used for signal connection with a cable that transmits signals. A first inner conductor is disposed within the receiving cavity formed by the housing of the RF connector, which enables the RF connector to also have a low-pass filtering function. One or more transmission zero-point structures are disposed within the receiving cavity, with a gap between the transmission zero-point structures and the first inner conductor. The transmission zero-point structures can reduce the size of the first inner conductor while ensuring the low-pass filtering function, thereby reducing the size of the RF connector containing the first inner conductor.

[0060] RF connectors may have one or more transmission zero-point structures. For ease of description, the following describes in detail the possible implementations of the transmission zero-point structure in the solution provided in the embodiments of this application, taking an RF connector with one transmission zero-point structure as an example. It should be understood that when an RF connector has multiple transmission zero-point structures, any one of the multiple transmission zero-point structures may have the same implementation as the possible implementations of the transmission zero-point structures described below; any two of the multiple transmission zero-point structures may have the same or different implementations, and the embodiments of this application do not impose any limitations on this.

[0061] For example, the first inner conductor is a "string of candied hawthorns" structure. There is a gap between the transmission zero-point structure and each capacitor and each inductor of the "string of candied hawthorns" structure; alternatively, the transmission zero-point structure is welded to or integrally formed with one of the capacitors of the "string of candied hawthorns" structure, and has gaps between it and the other capacitors and each inductor of the "string of candied hawthorns" structure. These gaps increase the coupling path, form a transmission zero, improve the selectivity of the "string of candied hawthorns" structure for specific frequency signals and its ability to suppress out-of-band signals, and reduce the size of the first inner conductor.

[0062] The first inner conductor can be coaxial with the RF connector. The high-resistance conductor in the first inner conductor can be a possible implementation of an inductor, and the low-resistance conductor in the first inner conductor can be a possible implementation of a capacitor.

[0063] The transmission zero-point structure is set on a first low-resistance conductor among a plurality of low-resistance conductors. There is a gap between the transmission zero-point structure and the low-resistance conductors other than the first low-resistance conductor among the plurality of low-resistance conductors. It can also be understood that the distance between the transmission zero-point structure and the low-resistance conductor on which the transmission zero-point structure is set is 0, and the distance between the transmission zero-point structure and other low-resistance conductors other than the low-resistance conductor on which the transmission zero-point structure is set is not 0.

[0064] Taking the transmission zero-point structure #1 as an example, the transmission zero-point structure #1 is disposed on the low-resistance conductor #1. The distance between the transmission zero-point structure #1 and the low-resistance conductor #1 is 0. The distance between the transmission zero-point structure #1 and other low-resistance conductors other than the low-resistance conductor #1 along the first direction is not 0, and the distance between the transmission zero-point structure #1 and the high-resistance conductor along the second direction is not 0. The first direction is parallel to the axis of the RF connector, and the second direction is perpendicular to the first direction. The low-resistance conductor #1 is one possible implementation of the first low-resistance conductor.

[0065] The gap between the transmission zero-point structure and the first inner conductor can also be understood as the distance between the transmission zero-point structure and the first inner conductor not being 0.

[0066] Taking the transmission zero-point structure #2 as an example, along the first direction, the transmission zero-point structure #2 is set between adjacent low-resistance conductors #2 and #3. The distance between the transmission zero-point structure #2 and the low-resistance conductors #2 and #3 is not 0, and the distance between the transmission zero-point structure #2 and the high-resistance conductor is not 0.

[0067] It should be understood that the spatial location of the aforementioned transmission zero-point structure #1 or transmission zero-point structure #2 is merely an example. The transmission zero-point structure can be placed between any two low-resistance conductors or on any one of the low-resistance conductors. There are no restrictions on this.

[0068] The transmission zero-point structure can be of any shape. For example, the transmission zero-point structure can be a cube, cuboid, polyhedron, n-shaped, or right-angled, etc.

[0069] For example, Figure 2 The transmission zero structure #1 shown is of type n; or, Figure 2 The transmission zero structure #2 shown is a right angle.

[0070] The n-shaped transmission zero structure can be interference-fitted with one of the low-resistance conductors in the "candied hawthorn string" structure. The interference fit can improve the spatial stability of the transmission zero structure.

[0071] In some possible implementations, the cavity also contains a medium located between the outer wall of the first inner conductor and the cavity; the dielectric constant Dk of the medium satisfies: Dk is greater than or equal to 4; and / or, the dielectric loss factor Df of the medium satisfies: Df is less than or equal to 1 / 1000.

[0072] For example, the RF connector's housing cavity also contains a dielectric material with a high Dk and / or a low Df. The values ​​of Dk and / or Df affect the size and / or performance of the "string of hawthorns" structure with a certain low-pass filtering performance. Compared to a lower Dk, a dielectric material with a higher Dk can reduce the size of the device that meets a certain low-pass filtering performance; compared to a higher Df, a dielectric material with a lower Df can reduce the power loss of the device with low-pass filtering function.

[0073] In some possible implementations, the RF connector also includes a socket; the first interface is used for inputting and / or outputting signals, including: the socket being plugged into and unplugged from the first interface, a signal being input from the socket to the first interface, and / or a signal being input from the first interface to the socket.

[0074] For example, the first interface of the RF connector is plugged into and disconnected from the socket, which is connected to other devices for signal transmission, enabling signal transmission from other devices to the RF connector.

[0075] In some possible implementations, the RF connector further includes a second inner conductor housed within a receiving cavity; the socket is plugged into and detached from the first interface, including plugging into and detaching the socket from the first interface and the second inner conductor.

[0076] For example, the second inner conductor and the first interface together enable plug-in connection with the socket.

[0077] In some possible implementations, the first inner conductor is electrically connected to the second inner conductor; the axis of the second inner conductor is not parallel to the axis of the first inner conductor; or, the axis of the second inner conductor is parallel to the axis of the first inner conductor.

[0078] For example, the second inner conductor and the first inner conductor are integrally formed or welded together. The second inner conductor and the first inner conductor are coaxial, or they are not parallel (e.g., the angle between the axes of the second and first inner conductors is acute). When the second and first inner conductors are coaxial, the RF connector can be understood as straight (also called a straight connector); when the second and first inner conductors are not parallel, the RF connector can be understood as bent (also called a bent connector). The straight or bent design of the RF connector can be flexibly configured according to product needs and / or production requirements.

[0079] It should be understood that among the plurality of high-resistance conductors of the first inner conductor, the resistance values ​​of any two high-resistance conductors may be the same or different; among the plurality of low-resistance conductors of the first inner conductor, the resistance values ​​of any two low-resistance conductors may be the same or different; among the plurality of high-resistance conductors and the plurality of low-resistance conductors of the first inner conductor, any two conductors may be solid or hollow; the high-resistance conductors, low-resistance conductors, or the shell of the first inner conductor may be axially symmetric structures or may not be axially symmetric structures. The embodiments of this application do not impose any limitations in this regard.

[0080] The following text combines Figure 3 or Figure 4 The structure of the radio frequency connector provided in the embodiments of this application is described in detail. Figure 3 or Figure 4 The RF connector shown is Figure 2 One possible implementation of the RF connector shown.

[0081] Figure 3 This is a cross-sectional schematic diagram of a straight radio frequency connector applicable to embodiments of this application.

[0082] Figure 3 or Figure 4The vertical lines indicate the second inner conductor, the diagonally filled "skewer" structure indicates the first inner conductor, the diagonally filled sections indicate the right-angled transmission zero-point structure, the dotted sections indicate the housing, the first interface, and the second interface, the black-filled sections indicate the socket, and the white-filled sections indicate the components. The housing and the first interface are integrally formed or welded together; and / or, the housing and the second interface are integrally formed or welded together.

[0083] like Figure 3 As shown, the second inner conductor in the straight RF connector is coaxial with the first inner conductor.

[0084] Figure 4 This is a cross-sectional schematic diagram of a bent radio frequency connector applicable to embodiments of this application.

[0085] like Figure 4 As shown, the angle between the second inner conductor and the first inner conductor in the bent RF connector is a right angle.

[0086] Figure 3 or Figure 4 The second inner conductor and the first interface shown are plugged into the socket. The distance D2 between the transmission zero-point structure and the high-resistance conductor of the first inner conductor is not 0, and the distance D1 between the transmission zero-point structure and the low-resistance conductor of the first inner conductor is not 0.

[0087] Figure 3 or Figure 4 The socket shown also connects to the component, allowing the processed signal to be transmitted from the end with the first interface to the end with the second interface. When the second interface of the RF connector is connected to a cable signal, the signal transmitted to the end with the second interface can be transmitted to that cable.

[0088] The following text combines Figure 5 or Figure 6 The manufacturing process of the radio frequency connector applicable to the embodiments of this application is described in detail.

[0089] Figure 5 This is a schematic diagram illustrating the fabrication of a radio frequency connector applicable to embodiments of this application.

[0090] Figure 5 The vertical lines represent the second inner conductor, the diagonally filled "skewer" structure represents the first inner conductor, the diagonally filled section represents the n-shaped transmission zero-point structure, the dotted section represents the first housing, which has a first interface, and the intersecting horizontal and vertical lines represent the cover, which has a second interface. The combination of the first housing and the cover can serve as... Figure 2 One possible implementation of the housing shown.

[0091] like Figure 5 As shown, the inner conductor includes a first inner conductor and a second inner conductor. Both the first and second inner conductors can be integrally made of brass. The transmission zero-point structure can also be made of brass. The inner conductors and the fabricated transmission zero-point structure are assembled together using methods such as interference fit, and then placed into the first housing. Alternatively, syndiotactic polystyrene (SPS) plastic can be filled into the first housing as a dielectric using injection molding. Finally, the cover and the first housing are assembled / welded together to form an RF connector. The processing technology for the first interface, the first housing, the cover, or the second interface can be referred to relevant technologies and will not be elaborated further here.

[0092] By having Figure 5 The electrical performance of the RF connector with the structure shown was simulated, and its performance meets the communication requirements. At 3.6 GHz, the out-of-band rejection ratio (OBS) of the RF connector reaches 57.8 dB; at 9.7 GHz, the OBS reaches 39.5 dB.

[0093] Figure 6 This is a schematic diagram illustrating the fabrication of another radio frequency connector applicable to embodiments of this application.

[0094] like Figure 6 As shown, the dielectric material filling the RF connector is ceramic. Since ceramic filling is generally not feasible using injection molding, when the dielectric material in the RF connector is ceramic, two semi-circular ceramic dielectrics can first be fabricated using machining or sintering processes. These two semi-circular ceramic dielectrics are then fastened to the first inner conductor, the second inner conductor, and the transmission zero-point structure, and finally assembled with the housing. The first inner conductor, the second inner conductor, and the transmission zero-point structure can form an inner conductor with a zero-point structure; the first inner conductor, the second inner conductor, and the transmission zero-point structure can be integrally manufactured or welded together. The processing technology for the first interface, the housing, or the second interface can be referenced in relevant technologies and will not be elaborated further here.

[0095] Due to the higher thermal conductivity and thermal stability of ceramic materials compared to polymer materials, ceramic-filled RF connectors exhibit lower losses and superior thermal conductivity, making them highly valuable and promising for high-power products. Through the study of... Figure 6 The electrical performance of the RF connector with the structure shown was simulated, and its performance meets the communication requirements.

[0096] The RF connectors provided in this application have a simple manufacturing process, high processing efficiency, and low cost.

[0097] It should be understood that the housing of an RF connector can be a hollow cylinder or a cube, etc. Figure 2 , Figure 3 , Figure 4 , Figure 5 or Figure 6 The shape of the housing of the RF connector shown is merely an example and does not constitute a limitation of this application.

[0098] It should be understood that high-resistance conductors and / or low-resistance conductors can be cylinders, irregular polyhedra, or cubes, etc. Figure 2 , Figure 3 , Figure 4 , Figure 5 or Figure 6 The shapes of the high-resistance and / or low-resistance conductors shown are merely examples and do not constitute a limitation of this application.

[0099] In the embodiments of this application, the materials of the first inner conductor, the second inner conductor, the transmission zero-point structure, or the shell can be the same or different. Any non-ferromagnetic metallic material can be used as the material for the preparation of the first inner conductor, the second inner conductor, the transmission zero-point structure, or the shell (e.g., copper alloys, aluminum, etc.), and the embodiments of this application do not impose any restrictions on this.

[0100] The RF connector provided in this application embodiment can be applied to the remote radio unit (RRU) of the multimode-multiband architecture radio platform (MARP) in a wireless base station. After the signal passes through the bandpass filter, the RF connector provided in this application embodiment suppresses unwanted high-frequency signals in the signal. Furthermore, the RF connector provided in this application embodiment is small in size and can be interoperated with the connector on the passband filter to support the bandpass dielectric filter board, reducing device size and cost.

[0101] This application also provides a communication device, which includes a radio frequency connector, wherein the radio frequency connector is any of the radio frequency connectors described above.

[0102] Figure 7 This is a schematic diagram of a communication device applicable to an embodiment of this application.

[0103] In some possible implementations, the communication device also includes a receiver for receiving signals; and / or a transmitter for transmitting signals.

[0104] In some possible implementations, the communication device also includes a transceiver for receiving or sending signals, and a processor for processing the signals.

[0105] In some possible implementations, the communication device also includes a board and an antenna, with an RF connector used to connect the board and the antenna.

[0106] For example, the communication device also includes components for processing signals, which are disposed on a single board.

[0107] For example, the single board is a PCB.

[0108] For example, the communication device also includes an antenna for transmitting processed signals and / or receiving signals that require processing by the components.

[0109] In some possible implementations, the communication device is a base station.

[0110] Skilled professionals may use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0111] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0112] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0113] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0114] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0115] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0116] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A radio frequency connector, characterized in that, include: First interface, housing, first inner conductor, one or more transmission zero-point structures, second interface. The housing is made of metal and has a receiving cavity that houses the first inner conductor and the transmission zero-point structure. The first inner conductor includes a plurality of high-resistance conductors and a plurality of low-resistance conductors, wherein the resistance of the high-resistance conductors is higher than the resistance of the low-resistance conductors, and the first inner conductor is coaxial with the receiving cavity; The first interface is electrically connected to one end of the housing, and the second interface is electrically connected to the other end of the housing. The first interface is used for inputting and / or outputting signals, and the second interface is used for inputting and / or outputting signals. At least one of the transmission zero-point structures has a gap with the first inner conductor; and / or, At least one of the transmission zero-point structures is disposed on a first low-resistance conductor among the plurality of low-resistance conductors, and there is a gap between the at least one of the transmission zero-point structures and the low-resistance conductors other than the first low-resistance conductor among the plurality of low-resistance conductors.

2. The radio frequency connector according to claim 1, characterized in that, The receiving cavity also contains a medium, which is located between the outer wall of the first inner conductor and the receiving cavity; The dielectric constant Dk of the medium satisfies: Dk is greater than or equal to 4; and / or, The dielectric loss factor Df of the medium satisfies the following condition: Df is less than or equal to 1 / 1000.

3. The radio frequency connector according to claim 1 or 2, characterized in that, The radio frequency connector also includes a socket; The first interface is used for inputting and / or outputting signals, including: The socket is plugged into the first interface, and the signal is input from the socket to the first interface, and / or the signal is input from the first interface to the socket.

4. The radio frequency connector according to claim 3, characterized in that, The radio frequency connector further includes a second inner conductor, which is housed within the receiving cavity; The socket is plugged into and detached from the first interface, including: The socket is plugged into and plugged into the first interface and the second inner conductor.

5. The radio frequency connector according to any one of claims 1 to 4, characterized in that, The first inner conductor and the second inner conductor are electrically connected; The axis of the second inner conductor is not parallel to the axis of the first inner conductor; or, The axis of the second inner conductor is parallel to the axis of the first inner conductor.

6. The radio frequency connector according to claim 5, characterized in that, At least one of the transmission zero-point structures is of the n-shape.

7. The radio frequency connector according to any one of claims 2 to 6, characterized in that, At least one of the transmission zero-point structures satisfies an interference fit with the first low-resistance conductor.

8. A communication device, characterized in that, The communication device includes a radio frequency connector, which is the radio frequency connector as described in any one of claims 1 to 7.

9. The communication device according to claim 8, characterized in that, The communication device also includes: Receiver and / or transmitter; or, Transceiver and processor.

10. The communication device according to claim 8 or 9, characterized in that, The communication device is a base station.

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