Filter, antenna device and communication equipment

Abstract

The embodiment of the invention provides a filter, an antenna device and communication equipment, relates to the technical field of communication, and aims to solve the problem that the size of the communication equipment is relatively large due to the fact that the filter occupies a relatively large layout area. A second resonance body and a first resonance body in the filter are stacked, and the second resonance body and the first resonance body are decoupled. The first connector penetrates through the second resonance body, the first connector and the second resonance body are decoupled, the first end of the first connector is coupled with the first resonance body, and the second end of the first connector extends out of the second resonance body. In addition, the first end of the second connector is coupled with the second resonance body, and the second connector and the first connector are arranged on the same side of the first resonance body. The first resonance body and the second resonance body which are mutually independent are stacked in the thickness direction of the filter, so that the layout area occupied by the filter can be reduced.

Description

Technical Field

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

[0002] Communication equipment usually adopts wireless communication technology, for example, multiple input multiple output (MIMO) technology. The MIMO technology can use spatial multiplexing to set multiple transmitting (transmitter, TX) antennas (antenna, ANT) at the transmitting end and multiple receiving (receiver, RX) antennas at the receiving end, thereby increasing the number of signal transceiver channels, so as to transmit more data, improve system capacity and frequency coverage. Based on this, as the number of channels continues to increase, in order to accommodate more signal transceiver channels, it is necessary to increase the number of filters in the communication equipment. However, the increase in the size of the filter will lead to an increase in the internal layout area of ​​the communication equipment, thereby increasing the structural size of the communication equipment, which is not conducive to the design trend of product miniaturization. Summary of the invention

[0003] The present application provides a filter, an antenna device, and a communication device, which are used to alleviate the problem that the filter occupies a large layout area, resulting in a larger size of the communication device.

[0004] In order to achieve the above objectives, this application adopts the following technical solutions:

[0005] In one aspect of the present application, a filter is provided, which includes a first resonant body, a second resonant body, at least one first connector and at least one second connector. The second resonant body is stacked with the first resonant body, and the second resonant body and the first resonant body are decoupled. The first connector runs through the second resonant body, and the first connector is decoupled from the second resonant body, the first end of the first connector is coupled to the first resonant body, and the second end of the first connector extends out of the second resonant body. In addition, the first end of the second connector is coupled to the second resonant body, and the second connector and the first connector are arranged on the same side of the first resonant body.

[0006] In summary, the filter provided in the embodiment of the present application may include a first resonant body and a second resonant body that are stacked, and a first connector coupled to the first resonant body and a second connector coupled to the second resonant body. In addition, the first resonant body is decoupled from the second resonant body, and the first connector coupled to the first resonant body is decoupled from the second resonant body. In this way, since the first resonant body and the second resonant body are stacked, and the first connector coupled to the first resonant body can pass through the second resonant body, and the first connector and the second connector are arranged on the same side of the first resonant body. In this case, by stacking the first resonant body and the second resonant body in the thickness direction of the filter, the board area occupied by the filter can be reduced, alleviating the problem of large size of the antenna device and the communication equipment having the above-mentioned filter.

[0007] In addition, the first resonant body and the second resonant body are independent of each other, and the electrical signal transmitted on the first resonant body and the electrical signal transmitted on the second resonant body will not affect each other. Based on this, when the first connector realizes the sending or receiving of the electrical signal on the first resonant body, and the second connector realizes the sending or receiving of the electrical signal on the second resonant body, the frequency of the electrical signal on the first resonant body and the frequency of the electrical signal on the second resonant body can be the same or different. The above-mentioned first resonant body and the second resonant body can respectively have independent signal transceiver channels for transmitting the above-mentioned electrical signals, thereby effectively increasing the number of signal transceiver channels.

[0008] In an optional embodiment, at least one first connector includes a first receiving connector and a first sending connector, wherein the first sending connector and the first receiving connector are located on the same side of the first resonant body. In addition, at least one second connector includes a second receiving connector and a second sending connector. Among them, the second receiving connector and the first receiving connector are arranged on the same side of the first resonant body, and the second sending connector and the first sending connector are arranged on the same side of the first resonant body. In this way, the first receiving connector can be coupled with the antenna board in the antenna device to transmit the electrical signal from the antenna board to the first resonant body through the first receiving connector. The first sending connector can be coupled with the circuit board in the antenna device to transmit the electrical signal from the first resonant body to the circuit board through the first sending connector. Alternatively, the first receiving connector can be coupled with the circuit board to transmit the electrical signal from the circuit board to the first resonant body through the first receiving connector. The first sending connector can be coupled with the antenna board to transmit the signal from the first resonant body to the antenna board through the first sending connector for signal transmission. The technical effects of the second receiving connector and the second sending connector are the same as described above and will not be repeated here.

[0009] In an optional embodiment, the filter further includes a first antenna connector and a second antenna connector. The first end of the first antenna connector is coupled to the first resonant body, and the first antenna connector and the first receiving connector are respectively located on opposite sides of the first resonant body. The second antenna connector passes through the first resonant body and is decoupled from the first resonant body. The first end of the second antenna connector is coupled to the second resonant body, and the second antenna connector and the second receiving connector are respectively located on opposite sides of the second resonant body. In this way, the second end of the first antenna connector can be coupled to the antenna board to transmit the electrical signal from the antenna board to the first resonant body through the first antenna connector, and the first resonant body can filter the electrical signal from the antenna board, or transmit the signal filtered by the first resonant body to the antenna board through the first antenna connector for transmission. In this case, the first receiving connector can be coupled to the receiving circuit in the circuit board to transmit the electrical signal filtered by the first resonant body to the receiving circuit in the circuit board for signal processing through the first receiving connector. In addition, the first transmitting connector can be coupled to the transmitting circuit in the circuit board to transmit the electrical signal from the circuit board to the first resonant body for filtering, and then transmitted to the antenna board through the first antenna connector for transmission. In this way, the first resonant body can filter the electrical signal received by the antenna board and filter the electrical signal to be sent by the antenna board, so the first resonant body can be the above-mentioned duplexer. The technical effects of the second antenna connector and the second resonant body are the same as described above and will not be repeated here.

[0010] In an optional embodiment, the filter also includes a first antenna connector and a second antenna connector. The first antenna connector passes through the second resonant body, and the first antenna connector is decoupled from the second resonant body. The first end of the first antenna connector is coupled to the first resonant body, and the first antenna connector and the first receiving connector are located on the same side of the first resonant body. The first end of the second antenna connector is coupled to the second resonant body, and the second antenna connector and the second receiving connector are located on the same side of the second resonant body. In this way, according to the setting position of the filter in the antenna device, the first antenna connector and the first receiving connector can be set on the same side of the first resonant body, and the second antenna connector and the second receiving connector can be set on the same side of the second resonant body. In addition, the technical effects of the first antenna connector and the second antenna connector are the same as described above and will not be repeated here.

[0011] In an optional embodiment, at least one first resonant cavity and at least one second resonant cavity are provided on the first resonant body, and the at least one first resonant cavity constitutes a first signal receiving channel. At least one second resonant cavity constitutes a first signal sending channel, and the passband frequency of the first signal receiving channel and the first signal sending channel is a first frequency. Among them, the first antenna connector is coupled to the first signal receiving channel and the first signal sending channel, the first receiving connector is coupled to the first signal receiving channel, and the first sending connector is coupled to the first signal sending channel. In this way, the above-mentioned first resonant body can have a signal transceiver channel (including the first signal receiving channel and the first signal sending channel) corresponding to a single passband frequency, that is, the above-mentioned first frequency.

[0012] In an optional embodiment, at least one third resonant cavity and at least one fourth resonant cavity are provided on the first resonant body, and the at least one third resonant cavity constitutes a second signal receiving channel. At least one fourth resonant cavity constitutes a second signal sending channel, and the passband frequency of the second signal receiving channel and the second signal sending channel is the second frequency. Among them, the first antenna connector is coupled with the second signal receiving channel and the second signal sending channel, the first receiving connector is coupled with the second signal receiving channel, and the first sending connector is coupled with the second signal sending channel. In this way, the above-mentioned first resonant body can have a signal transceiver channel corresponding to the first frequency (including the first signal receiving channel and the first signal sending channel), and a signal transceiver channel corresponding to the second frequency (including the second signal receiving channel and the second signal sending channel). Among them, the first frequency and the second frequency can be the same, or the first frequency and the second frequency can be different, and this application does not limit this.

[0013] In an optional embodiment, a first blind hole is provided on the first resonant body, and the first blind hole is coupled with the first signal receiving channel, the first signal transmitting channel, the second signal receiving channel, and the second signal transmitting channel; wherein the first antenna connector is provided in the first blind hole. In this case, the first antenna connector can be provided in the first blind hole, so that the first antenna connector can be coupled with the first signal receiving channel and the first signal transmitting channel, and the second signal receiving channel and the second signal transmitting channel through the first blind hole.

[0014] In an optional embodiment, at least one fifth resonant cavity and at least one sixth resonant cavity are provided on the second resonant body, and the at least one fifth resonant cavity constitutes a third signal receiving channel. At least one sixth resonant cavity constitutes a third signal sending channel, and the passband frequency of the third signal receiving channel and the third signal sending channel is a third frequency. Among them, the second antenna connector is coupled to the third signal receiving channel and the third signal sending channel, the second receiving connector is coupled to the third signal receiving channel, and the second sending connector is coupled to the third signal sending channel. In this way, the above-mentioned second resonant body can have a signal transceiver channel (including the third signal receiving channel and the third signal sending channel) corresponding to a single passband frequency, that is, the above-mentioned third frequency.

[0015] In an optional embodiment, at least one fifth resonant cavity and at least one sixth resonant cavity are provided on the second resonant body, and at least one fifth resonant cavity constitutes a third signal receiving channel. At least one sixth resonant cavity constitutes a third signal sending channel, and the passband frequency of the third signal receiving channel and the third signal sending channel is the third frequency. At least one seventh resonant cavity and at least one eighth resonant cavity are provided on the second resonant body, and at least one seventh resonant cavity constitutes a fourth signal receiving channel. At least one eighth resonant cavity constitutes a fourth signal sending channel, and the passband frequency of the fourth signal receiving channel and the fourth signal sending channel is the fourth frequency. Among them, the second antenna connector is coupled with the third signal receiving channel, the third signal sending channel, the fourth signal receiving channel and the fourth signal sending channel, the second receiving connector is coupled with the third signal receiving channel and the fourth signal receiving channel, and the second sending connector is coupled with the third signal sending channel and the fourth signal sending channel. In this way, the above-mentioned second resonant body can have a signal transceiver channel corresponding to the third frequency (including the third signal receiving channel and the third signal sending channel), and a signal transceiver channel corresponding to the fourth frequency (including the fourth signal receiving channel and the fourth signal sending channel). The fourth frequency may be the same as the third frequency, or the fourth frequency may be different from the third frequency, which is not limited in the present application. In addition, the fourth frequency may be the same as or different from any one of the first frequency and the second frequency, which is not limited in the present application.

[0016] In an optional embodiment, the contour shape of the first resonant body is a symmetrical figure. The first antenna connector and the second antenna connector are symmetrically arranged about the symmetry axis of the first resonant body, the first receiving connector and the second receiving connector are symmetrically arranged about the symmetry axis of the first resonant body, and the first sending connector and the second sending connector are symmetrically arranged about the symmetry axis of the first resonant body. In this way, a through hole symmetrically arranged with the second antenna connector can be opened on the first resonant body, so that the second antenna connector passing through the through hole is symmetrically arranged with the first antenna connector. Similarly, a through hole symmetrically arranged with the second receiving connector is opened on the second resonant body, so that the first receiving connector passing through the through hole is symmetrical with the second receiving connector. A through hole symmetrically arranged with the second sending connector is opened on the second resonant body, so that the first sending connector passing through the through hole is symmetrical with the second sending connector.

[0017] In an optional implementation, the first frequency is the same as the third frequency, and the second frequency is the same as the fourth frequency. In this way, the first resonant body and the second resonant body may have the same number of signal transceiver channels.

[0018] In an optional embodiment, the filter further includes a third resonant body and at least one third connector, wherein the third resonant body is stacked on a side of the second resonant body away from the first resonant body, the third resonant body is decoupled from the first resonant body and the second resonant body, the first connector passes through the third resonant body and is decoupled from the third resonant body, and the second end of the first connector extends out of the third resonant body. The second connector passes through the third resonant body and is decoupled from the third resonant body, and the second end of the second connector extends out of the third resonant body. In addition, the first end of the third connector is coupled to the third resonant body, and the third connector and the second connector are arranged on the same side of the first resonant body. The technical effects of the third resonant body and at least one third connector are the same as described above and will not be repeated here.

[0019] In an optional embodiment, a portion of the first connector that passes through the second resonant body has a first gap H1 with the second resonant body, so that the first connector does not directly contact the second resonant body, which is conducive to achieving decoupling between the first connector and the second resonant body.

[0020] In an optional embodiment, 0

[0021] In an optional implementation, a second gap H2 is provided between the first resonant body and the second resonant body, so that the first resonant body and the second resonant body are not in direct contact with each other, which is conducive to achieving decoupling between the first resonant body and the second resonant body.

[0022] In an optional implementation, 0<H2≤3mm. When the second gap H2 is greater than 3mm, the distance between the first resonant body and the second resonant body will be increased, thereby causing waste of filter space size along the thickness direction, which is not conducive to the design trend of product miniaturization and product reliability. Therefore, when 0<H2≤3mm, the decoupling between the first resonant body and the second resonant body can be guaranteed without affecting the size and reliability of the filter.

[0023] In an optional embodiment, the filter further includes an insulating adhesive layer, which is disposed between the first resonant body and the second resonant body, and the insulating adhesive layer is bonded to the first resonant body and the second resonant body. In this way, by providing the above-mentioned insulating adhesive layer, the first resonant body and the second resonant body are not in direct contact, which is conducive to achieving decoupling between the first resonant body and the second resonant body.

[0024] In an optional embodiment, the thickness D of the insulating adhesive layer is 0<D≤3mm. When the thickness D of the insulating adhesive layer is greater than 3mm, the distance between the first resonant body and the second resonant body will be increased, thereby causing waste of the filter space size along the thickness direction, which is not conducive to the design trend of product miniaturization and product reliability. Similarly, when 0<D≤3mm, the decoupling between the first resonant body and the second resonant body can be guaranteed without affecting the size and reliability of the filter.

[0025] In an optional implementation, a first gap H1 is formed between the portion of the first antenna connector that passes through the second resonant body and the second resonant body. The technical effect of the first gap H1 is the same as described above and will not be described in detail here.

[0026] ​In an optional implementation, a first gap H1 is provided between the portion of the second antenna connector that passes through the first resonant body and the first resonant body. The technical effect of the first gap H1 is the same as described above and will not be described in detail here.

[0027] Another aspect of the present application provides an antenna device, comprising a circuit board and any one of the filters described above, the filter being coupled to the circuit board. The antenna device has the same technical effect as the filter provided in the above embodiment, which will not be described in detail here.

[0028] In an optional embodiment, at least one first connector in the above-mentioned filter may include a first receiving connector and a first transmitting connector. In addition, the filter may further include a first antenna connector, which is coupled to the first resonant body. A first signal receiving channel and a first signal transmitting channel are provided on the first resonant body, and the passband frequency of the first signal receiving channel and the first signal transmitting channel is a first frequency. A second signal receiving channel and a second signal transmitting channel are provided on the first resonant body, and the passband frequency of the second signal receiving channel and the second signal transmitting channel is a second frequency. Among them, the first antenna connector is coupled with the first signal receiving channel, the first signal transmitting channel, the second signal receiving channel and the second signal transmitting channel. In addition, the first receiving connector is coupled with the first signal receiving channel and the second signal receiving channel, and the first transmitting connector is coupled with the first signal transmitting channel and the second signal transmitting channel. Based on this, the antenna device also includes a frequency divider and a frequency combiner. Among them, the frequency divider is provided on the circuit board, and the frequency divider is coupled with the circuit board and the first receiving connector. The frequency combiner is provided on the circuit board, and the frequency combiner is coupled with the circuit board and the first transmitting connector. In this way, the electrical signals of the first frequency and the second frequency received by the first receiving connector from the first antenna connector can be processed by the frequency divider, and the electrical signals of the first frequency and the second frequency can be respectively output to the receiving circuit on the circuit board. In addition, the electrical signals of the first frequency and the second frequency output by the transmitting circuit on the circuit board can be transmitted to the first transmitting connector and the first antenna connector after the frequency combining process of the frequency combiner.

[0029] Another aspect of the present application provides a communication device including a mounting bracket and any one of the antenna devices described above, wherein the antenna device is arranged on the mounting bracket. The communication device has the same technical effect as the antenna device provided in the above embodiment, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of a communication system architecture provided in an embodiment of the present application;

[0031] Figure 2 for Figure 1A structural schematic diagram of a communication device;

[0032] Figure 3A for Figure 2 A structural schematic diagram of an antenna device;

[0033] Figure 3B for Figure 2 Another structural schematic diagram of the antenna device;

[0034] Figure 4A A schematic diagram of a connection between a filter and a circuit board provided in an embodiment of the present application;

[0035] Figure 4B Another schematic diagram of connection between the filter and the circuit board provided in an embodiment of the present application;

[0036] Figure 5 A schematic diagram of the structure of a filter provided in an embodiment of the present application;

[0037] Figure 6 A schematic diagram of the structure of a dielectric filter provided in an embodiment of the present application;

[0038] Figure 7 for Figure 5 A schematic diagram of a stacking of a first resonant body and a second resonant body;

[0039] Figure 8 Another structural schematic diagram of a filter provided in an embodiment of the present application;

[0040] Fig.9A Another structural schematic diagram of a filter provided in an embodiment of the present application;

[0041] Fig. 9B Another structural schematic diagram of a filter provided in an embodiment of the present application;

[0042] Fig.10 Another structural schematic diagram of a filter provided in an embodiment of the present application;

[0043] Fig.11 for Fig.10 A schematic diagram of a stacking of a first resonant body and a second resonant body;

[0044] Fig.12 Another structural schematic diagram of a filter provided in an embodiment of the present application;

[0045] Fig.13 A schematic diagram of a configuration method of a signal transceiver channel on a first resonant body provided in an embodiment of the present application;

[0046] Fig.14A schematic diagram of another configuration method of a signal transceiver channel on a first resonant body provided in an embodiment of the present application;

[0047] Fig.15 For along Fig.14 The top view obtained from the A direction;

[0048] Fig.16 Another schematic diagram of connection between the filter and the circuit board provided in an embodiment of the present application;

[0049] Fig.17 A schematic diagram of a configuration method of signal transceiver channels on a first resonant body and a second resonant body provided in an embodiment of the present application;

[0050] Fig.18 A schematic diagram of a connector and a signal receiving and transmitting channel on a dielectric filter provided for related technologies;

[0051] Fig.19 A schematic diagram of another arrangement of signal transceiver channels on the first resonant body and the second resonant body provided in an embodiment of the present application;

[0052] Fig. 20 A schematic diagram of another arrangement of signal transceiver channels on the first resonant body and the second resonant body provided in an embodiment of the present application;

[0053] Fig.21 Another structural schematic diagram of the filter provided in an embodiment of the present application.

[0054] Reference numerals:

[0055] 01-communication system architecture; 02-communication equipment; 03-terminal equipment; 10-antenna device; 20-mounting bracket; 21-pole; 22-adjustment bracket; 101-radome; 102-antenna board; 1021-radiator; 30-filter; 103-circuit board; 104-shielding cover; 1031-TX circuit; 1032-RX circuit; 301-first resonant body; 302-second resonant body; 311-first connector; 312-second connector; 3001-dielectric block; 3002-conductive layer; 3003-blind hole; 400-through hole; 50-insulating adhesive layer; 311RX-first receiving connector; 311TX-first transmitting connector; 312RX-second receiving connector; 312TX-second transmitting connector; 321-first antenna connector; 322 -Second antenna connector; 601-first resonant cavity; 711-first signal receiving channel; 602-second resonator; 712-first signal sending channel; 603-third resonant cavity; 721-second signal receiving channel; 604-fourth resonant cavity; 722-second signal sending channel; 401-first blind hole; 402-coupling cavity; 1033-frequency divider; 1034-frequency combiner; 605-fifth resonant cavity; 731-third signal receiving channel; 606-sixth resonant cavity; 732-third signal sending channel; 607-seventh resonant cavity; 741-fourth signal receiving channel; 608-eighth resonant cavity; 742-fourth signal sending channel; 303-third resonant body; 313RX-third receiving connector; 313TX-third sending connector; 323-third antenna connector. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0057] In the following, the terms "first", "second", etc. are used only for convenience of description and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0058] In this application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed mechanical connection, a detachable mechanical connection, or an integrated one; or, "connection" can be a direct connection or an indirect connection through an intermediate medium.

[0059] In addition, unless otherwise clearly specified and limited, the term "coupling" should be understood in a broad sense. For example, "coupling" can be a direct electrical connection between two components, for example, two components are physically in contact and electrically conductive, and can also be understood as different components in the circuit structure being electrically connected through physical lines such as printed circuit board (PCB) copper foil or wires that can transmit electrical signals to transmit electrical signals; or, "coupling" can be an indirect electrical connection between two components through an intermediate medium; or, "coupling" can be an electrical connection between two components in an air-spaced / non-contact manner, for example, two components are electrically connected by capacitive coupling, inductive coupling or resistive coupling to transmit electrical signals. In addition, in the embodiments of the present application, the term "decoupling" means that there is no direct or indirect electrical connection relationship between the two components, so no electrical signal transmission will be performed between the two decoupled components.

[0060] In the embodiments of the present application, directional terms such as "upper" and "lower" may be defined including but not limited to the orientation relative to the schematic placement of the components in the drawings. It should be understood that these directional terms may be relative concepts. They are used for relative description and clarification, and may change accordingly according to the change of the orientation of the components in the drawings.

[0061] In the drawings of the embodiments of the present application, components are represented by guide lines with arrows; parts are represented by guide lines only; and hollow structures such as openings and holes are represented by guide lines with wavy lines at the ends.

[0062] The present application embodiment provides a communication system architecture 01, such as Figure 1As shown, the communication system architecture 01 may include a communication device 02 and a terminal device 03, and the communication device 02 may perform wireless communication with the terminal device 03. For example, the communication device 02 may include a base station. The base station is used to perform cell coverage of wireless signals to achieve connection between the terminal device and the radio frequency end of the wireless network. Based on this, for example, the base station may be a base station (base transceiver station, BTS) in a global system of mobile communication (global system of mobile communication, GSM) system or a code division multiple access (code division multiple access, CDMA) system. Or, for another example, the base station may be a base station (Node B, NB) in a wideband code division multiple access wireless (wideband code division multiple access wireless, WCDMA) system. Or, for another example, the base station may be an evolutionary base station (evolutional Node B, eNB) in a long term evolution (long term evolution, LTE) system, or a wireless controller in a cloud radio access network (cloud radio access network, CRAN) scenario. Alternatively, the above-mentioned base station can be a relay station, an access point, a vehicle-mounted device, a wearable device, and a base station in a 5G network, or it can also be a base station in a future evolved public land mobile network (PLMN) network, for example, a new wireless base station, which is not limited to the embodiments of the present application.

[0063] In addition, the terminal device 03 may be a mobile phone, a tablet computer (pad), a laptop computer, a smart home, a smart wearable device (e.g., a smart watch, a smart bracelet, smart glasses, a smart helmet), a virtual reality (VR) device, an augmented reality (AR) device, etc. The terminal device 03 may also be a handheld terminal device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a device in a 5G network, or a terminal device in a future evolved PLMN, etc., which is not limited in the embodiments of the present application.

[0064] In the case where the communication device 02 is a base station, the communication device 02 may include Figure 2The antenna device 10 and the mounting bracket 20 are shown. For example, the mounting bracket 20 may include a pole 21, which may fix and support the antenna device 10. In addition, the mounting bracket 20 may also include an adjustment bracket 22, through which the antenna device 10 may be connected to the pole 21, and the adjustment bracket 22 may adjust the pitch angle of the antenna device 10 relative to the pole.

[0065] Based on this, in some embodiments of the present application, the antenna device 10 is as follows Figure 3A The device shown may include a radome 101, an antenna board 102, a filter 30, a shielding cover 104 and a circuit board 103. Figure 3A The filter 30 is disposed between the antenna plate 102 and the shielding cover 104 as an example for illustration. In other embodiments of the present application, Figure 3B As shown, the filter 30 can be arranged on the side of the antenna board 102 away from the circuit board 103. Figure 3A The Z direction in the figure may be the thickness direction of the antenna device 10 and each component in the antenna device 10, and the X direction and the Y direction may be the width and length directions of the antenna device 10 and each component in the antenna device 10, respectively. The XY plane may be parallel to the board surface of the circuit board 103. The meanings of the X, Y, and Z coordinates in the following figures in the embodiments of the present application are the same as described above and will not be repeated one by one.

[0066] In addition, continue Figure 3A As shown, the antenna board 102 may include a radiator 1021, and the radiating unit composed of the above-mentioned multiple radiators 1021 can radiate and receive antenna signals. The radome 101 is covered on the antenna board 102, and the radome 101 and the shielding cover 104 can form a receiving cavity for accommodating the antenna board 102 and the filter 30. The radome 101 and the shielding cover 104 can have good electromagnetic wave penetration characteristics to prevent the antenna board 102 and the filter from being affected by external electromagnetic interference. In addition, the radome 101 can also resist the influence of the external environment of the antenna device 10.

[0067] On this basis, Figure 3AThe filter 30 shown can be a dielectric filter (DF), which is an electronic component used for signal filtering. The dielectric material in the dielectric filter can be a non-metallic material, such as insulating materials such as ceramics and polymers, which have good insulation properties and capacitance characteristics. In dielectric filters, dielectric materials are often used to make capacitors, and different capacitors can have different capacitance values ​​and operating frequency ranges. When the electrical signal received or sent by the radiator 1021 on the antenna board 102 passes through the dielectric filter, an electric field will be generated in the above-mentioned capacitor in the dielectric filter 30, and electrical signals of different frequencies will be shielded or passed under the action of the above-mentioned electric field, so that the above-mentioned electrical signal can be filtered. The above-mentioned filter 30 can be at least one of a band-pass filter, a low-pass filter, a high-pass filter, or a band-stop filter, etc., and this application does not limit this. For the convenience of explanation, the following examples are all taken as examples of the filter 30 being a band-pass filter.

[0068] For example, Figure 4A As shown, the filter 30 can be coupled to the antenna board 102 and the circuit board 103. The circuit board 103 can be a printed circuit board (PCB), and a TX circuit 1031 and an RX circuit 1032 can be provided on the circuit board 103. The TX circuit 1031 can filter the electrical signal to be transmitted through the filter 30 and then transmit it through the antenna board 102. Alternatively, the electrical signal received by the antenna board 102 can be filtered by the filter 30 and then transmitted to the RX circuit 1032 for signal processing. Figure 4A The filter 30 shown may also be referred to as a duplexer.

[0069] Alternatively, for example, the antenna device 10 may include a plurality of filters, which are Figure 4B The TX filter 31 and the RX filter 32 shown in the figure, wherein the TX filter 31 can be coupled with the antenna board 102 and the TX circuit 1031. The TX circuit 1031 can filter the electrical signal to be transmitted through the TX filter 31 and transmit it through the antenna board 102. In addition, the RX filter 32 can be coupled with the antenna board 102 and the RX circuit 1032, and the electrical signal received by the antenna board 102 can be filtered by the RX filter 32 and transmitted to the RX circuit 1032 for signal processing.

[0070] The structure of the filter 30 is described below by way of example. Figure 5 As shown, the filter 30 may include a first resonant body 301, a second resonant body 302, at least one first connector 311 and at least one second connector 312. At least one of the first resonant body 301 and the second resonant body 302 may include Figure 6 The dielectric block 3001 and the conductive layer 3002 covering the surface of the dielectric block 3001 are shown. The dielectric block 3001 is made of insulating materials such as ceramics and polymers. The conductive layer 3002 can be made of metal materials, such as silver. The conductive layer 3002 can be formed by electroplating metal on the surface of the dielectric block 3001 using an electroplating process.

[0071] In order to adjust the resonant frequency of the resonant body, continue as follows Figure 6 As shown, at least one blind hole 3003 ( Figure 6 Taking two blind holes as an example for illustration), the blind hole 3003 can form a resonant cavity with part of the medium around the blind hole 3003. The resonant frequency of the resonant cavity is related to parameters such as the dielectric constant of the material of the dielectric block 3001, the aperture and depth of the blind hole 3003. Therefore, by adjusting the above parameters, the purpose of adjusting the resonant frequency of the resonant body can be achieved. For example, the above resonant frequency can be inversely proportional to the square root of the dielectric constant of the dielectric block 3001, so when the size of the resonant cavity is the same, the larger the dielectric constant of the dielectric block 3001, the lower the above resonant frequency. Or, for another example, when the dielectric constant of the dielectric block 3001 is the same, the deeper (or shallower) the depth of the blind hole 3003, the lower (or higher) the resonant frequency; the smaller (or larger) the aperture of the blind hole 3003, the higher (or lower) the resonant frequency. In addition, the density of the blind holes 3003 may determine the coupling degree of the electrical signal transmitted by the resonant body. For example, the smaller the distance between two adjacent blind holes 3003 is, the easier it is for the electrical signal to couple from one blind hole to another.

[0072] On this basis, continue Figure 5 As shown, the first resonant body 301 and the second resonant body 302 can be stacked, and the first resonant body 301 and the second resonant body 302 can be decoupled. In this case, there is no direct or indirect electrical connection between the first resonant body 301 and the second resonant body 302. Therefore, the electrical signal on the first resonant body 301 is not easily transmitted to the second resonant body 302, and the electrical signal on the second resonant body 302 is not easily transmitted to the first resonant body 301, so that the electrical signals transmitted by the first resonant body 301 and the second resonant body 302 are independent of each other.

[0073] Based on this, Figure 7As shown, the first end of the first connector 311 (the end facing the first resonant body 301) can be coupled to the first resonant body 301. In this case, the first resonant body 301 can be connected to the antenna board 102 or the circuit board 103 (such as Figure 3A The electrical signal received by the first connector 311 may be transmitted to the first resonant body 301 coupled to the first connector 311. Alternatively, the electrical signal on the first resonant body 301 may be output through the first connector 311.

[0074] Similarly, the first end of the second connector 312 (the end facing the second resonant body 302) is coupled to the second resonant body 302. In this case, the second resonant body 302 can be connected to the antenna board 102 or the circuit board 103 (such as Figure 3A The electrical signal received by the second connector 312 may be transmitted to the second resonant body 302 coupled to the second connector 312. Alternatively, the electrical signal on the second resonant body 302 may be output through the second connector 312.

[0075] In order to stack the first resonant body 301 and the second resonant body 302, continue as follows Figure 7 As shown, the second resonant body 302 may be provided with a through hole 400 that penetrates the second resonant body 302. Figure 7 In the direction of the arrow in FIG. 4 , when the second resonant body 302 is stacked on the first resonant body 301, the first connector 311 can pass through the through hole 400, thereby achieving the purpose of passing through the second resonant body 302. In this case, the second end of the first connector 311 (the end away from the first resonant body 301) extends out of the second resonant body 302, and the first connector 311 and the second connector 312 are arranged on the same side of the first resonant body 301 (that is, the upper side of the first resonant body 301).

[0076] In addition, since there is no electrical signal transmission between the first resonant body 301 and the second resonant body 302 and they are in a decoupled state, the first connector 311 can be decoupled from the second resonant body 302. Similarly, there is no direct or indirect electrical connection between the first connector 311 and the second resonant body 302.

[0077] Based on this, in order to decouple the first connector 311 from the second resonant body 302, in some embodiments of the present application, for example Figure 5 As shown, the portion of the first connector 311 that passes through the second resonant body 302 may have a first gap H1 between the portion and the second resonant body 302. That is, the first connector 311 may be connected to the through hole 400 (eg, Figure 7As shown in FIG. 1 , there is a first gap H1 between the hole walls of the first connector 311 and the second resonant body 302. In this way, the first connector 311 may not be in direct contact with the second resonant body 302, which is conducive to achieving decoupling between the first connector 311 and the second resonant body 302.

[0078] For example, the first gap H1 may satisfy the range of 0 Figure 7 As shown in FIG. 4 , the through hole 400 occupies a larger layout area. Alternatively, when the first gap H1 is greater than 3 mm, the size of the first connector 311 is reduced, which is not conducive to the first connector 311 being connected to other components (for example, Figure 3A Therefore, when 0 Figure 7 The layout area of ​​the first connector 311 is affected.

[0079] In addition, in some embodiments of the present application, in order to decouple the first resonant body 301 and the second resonant body 302, continue as follows Figure 5 As shown, a second gap H2 may be provided between the first resonant body 301 and the second resonant body 302. In this way, the first resonant body 301 and the second resonant body 302 are not in direct contact with each other, which is conducive to achieving decoupling between the first resonant body 301 and the second resonant body 302.

[0080] For example, the second gap H2 can satisfy the range of 0<H2≤3mm. When the second gap H2 is greater than 3mm, the distance between the first resonant body 301 and the second resonant body 302 will be increased, thereby causing waste of the spatial size of the filter 30 along the thickness direction (the direction in which the first resonant body 301 points to the second resonant body 302), which is not conducive to the design trend of product miniaturization and the reliability of the product. Therefore, when 0<H2≤3mm, the decoupling between the first resonant body 301 and the second resonant body 302 can be guaranteed without affecting the size and reliability of the filter 30.

[0081] Alternatively, in some other embodiments of the present application, in order to decouple the first resonant body 301 and the second resonant body 302, the filter 30 may further include: Figure 8 ​​The insulating adhesive layer 50 shown. The insulating adhesive layer 50 can be made of an insulating material with stickiness, and the insulating adhesive layer 50 can be arranged between the first resonant body 301 and the second resonant body 302, and the insulating adhesive layer 50 can be bonded to the first resonant body 301 and the second resonant body 302. In this way, by providing the above-mentioned insulating adhesive layer 50, the first resonant body 301 and the second resonant body 302 can be prevented from directly contacting each other, which is conducive to achieving decoupling between the first resonant body 301 and the second resonant body 302.

[0082] For example, the thickness D of the insulating adhesive layer 50 can satisfy the range: 0<D≤3mm. When the thickness D of the insulating adhesive layer 50 is greater than 3mm, the distance between the first resonant body 301 and the second resonant body 302 will be increased, thereby causing waste of the spatial size of the filter 30 along the thickness direction (the direction in which the first resonant body 301 points to the second resonant body 302), which is not conducive to the design trend of product miniaturization and the reliability of the product. Similarly, when 0<D≤3mm, the decoupling between the first resonant body 301 and the second resonant body 302 can be guaranteed without affecting the size and reliability of the filter 30.

[0083] In summary, if Figure 5 As shown, the filter 30 provided in the embodiment of the present application may include a first resonant body 301 and a second resonant body 302 which are stacked, and a first connector 311 coupled to the first resonant body 301 and a second connector 312 coupled to the second resonant body 302. Among them, the first connector 311 can realize the sending or receiving of electrical signals on the first resonant body 301, and the second connector 312 can realize the sending or receiving of electrical signals on the second resonant body 302. The frequency of the electrical signal on the first resonant body 301 and the frequency of the electrical signal on the second resonant body 302 may be the same or different. In addition, since the first resonant body 301 is decoupled from the second resonant body 302, and the first connector 311 coupled to the first resonant body is decoupled from the second resonant body 302. In this way, on the one hand, the first resonant body 301 and the second resonant body 302 are independent of each other, and the electrical signal transmitted on the first resonant body 301 and the electrical signal transmitted on the second resonant body 302 will not affect each other. In this case, the first resonant body 301 and the second resonant body 302 may respectively have independent signal transceiver channels, thereby effectively increasing the number of signal transceiver channels, so that the probability of increasing the number of signal transceiver channels of the filter 30 can reach 100%.

[0084] On the other hand, continuing Figure 5As shown in FIG. 1 , since the first resonant body 301 and the second resonant body 302 are stacked, and the first connector 311 coupled to the first resonant body 301 can penetrate the second resonant body 302, and the first connector 311 and the second connector 312 are arranged on the same side of the first resonant body 301. In this case, by stacking the first resonant body 301 and the second resonant body 302 in the thickness direction of the filter 30, that is, in the Z direction, the area of ​​the filter 30 in the XY plane can be reduced. The XY plane is as shown in FIG. Figure 3A As shown, it can be parallel to the board surface of the circuit board 103. In this way, while ensuring that the number of channels can be increased, the layout area of ​​the filter 30 occupied by the board surface of the circuit board 103 can also be reduced, alleviating the problem of large size of the antenna device and communication equipment with the above-mentioned filter 30. For example, when the first resonant body 301 and the second resonant body 302 can respectively have independent signal transceiver channels, compared with the solution of integrating different signal transceiver channels into the same resonant body, when the filter 30 provided in the embodiment of the present application includes a stacked first resonant body 301 and a second resonant body 302, the area of ​​the filter 30 on the XY plane can be reduced by 50%.

[0085] On the other hand, when the first resonant body 301 and the second resonant body 302 are stacked and the first resonant body 301 and the second resonant body 302 can respectively have independent signal transceiver channels, compared with the solution of integrating different signal transceiver channels into the same resonant body, any one of the first resonant body 301 and the second resonant body 302 in the embodiment of the present application has a relatively small size, which is beneficial to reduce the difficulty of molding a large-size resonant body.

[0086] The above is based on Figure 5 The filter 30 shown includes a first connector 311 and a second connector 312. In other embodiments of the present application, Fig.9A As shown, in the filter 30, at least one first connector coupled to the first resonance body 301 may include a first receiving connector 311RX and a first transmitting connector 311TX. In addition, at least one second connector coupled to the second resonance body 302 may include a second receiving connector 312RX and a second transmitting connector 312TX.

[0087] Fig.9A The first receiving connector 311RX and the first transmitting connector 311TX are close to the same side of the resonant body (the first resonant body 301 or the second resonant body 302), and the second receiving connector 312RX and the second transmitting connector 312TX are close to the other side of the resonant body. Fig. 9B As shown, the first receiving connector 311RX and the first transmitting connector 311TX can be respectively arranged at diagonal positions of the resonant body. Similarly, the second receiving connector 312RX and the second transmitting connector 312TX can also be respectively arranged at diagonal positions of the resonant body. Fig.9A The structure shown is used as an example.

[0088] In addition, the first receiving connector 311RX and the second receiving connector 312RX may be as shown in FIG. Fig.9A or Fig. 9B Alternatively, the first receiving connector 311RX and the second receiving connector 312RX may be close to different sides of the resonant body. Similarly, the first transmitting connector 311TX and the second transmitting connector 312TX may be close to the same side of the resonant body as shown. Fig.9A or Fig. 9B As shown, the first transmission connector 311TX and the second transmission connector 312TX may be close to the same side of the resonant body, or the first transmission connector 311TX and the second transmission connector 312TX may be close to different sides of the resonant body.

[0089] The above is merely an example of the locations of the first receiving connector 311RX, the first transmitting connector 311TX, the second receiving connector 312RX and the second transmitting connector 312TX, and does not constitute a limitation on the locations of the above connectors.

[0090] On this basis, the first receiving connector 311RX and the first transmitting connector 311TX are respectively located on the same side of the first resonant body 301. As described above, the first receiving connector 311RX and the first transmitting connector 311TX can both pass through the second resonant body 302 and partially extend out of the second resonant body 302. The first receiving connector 311RX and the first transmitting connector 311TX are both decoupled from the second resonant body 302.

[0091] For example, Figure 3B When the filter 30 is disposed on the side of the antenna board 102 facing away from the circuit board 103, Fig.9A The first receiving connector 311RX shown can be connected to the antenna board 102 (such as Figure 3B ) is coupled to receive the signal from the antenna board 102 (as shown) through the first receiving connector 311RX. Figure 3B The first transmitting connector 311TX can be coupled to the circuit board 103 to transmit the electrical signal from the first resonant body 301 to the circuit board 103 (as shown in FIG. 1 ). Figure 3B In this case, the first resonant body 301 can receive the signal from the antenna plate 102 (as shown in FIG. Figure 3BAfter filtering, the electrical signal is transmitted to the circuit board 103 (as shown in Figure 3B As shown), so that the circuit board 103 can receive the electrical signal from the antenna board 102 and perform signal processing. At this time, the first resonant body 301 can be used as Figure 4B RX filter 32 is shown.

[0092] Or, for example, Figure 3B When the filter 30 is disposed on the side of the antenna board 102 facing away from the circuit board 103, Fig.9A The first receiving connector 311RX shown can be coupled to the circuit board 103 to transmit the signal from the circuit board 103 (such as Figure 3B The first transmitting connector 311TX can be connected to the antenna board 102 (as shown in FIG. Figure 3B ) to transmit the signal from the first resonant body 301 to the antenna board 102 (as shown) through the first transmitting connector 311TX Figure 3B In this case, the first resonant body 301 can transmit signals from the circuit board 103 (as shown in FIG. Figure 3B After filtering, the electrical signal is transmitted to the antenna board 102 (as shown in Figure 3B As shown), so that the antenna board 102 can send the electrical signal from the circuit board 103, at this time, the first resonant body 301 can be used as Figure 4B The TX filter 31 is shown.

[0093] In addition, continue as Fig.9A As shown, the second receiving connector 312RX can be arranged on the same side of the first resonant body 301 as the first receiving connector 311RX. The second transmitting connector 312TX and the first transmitting connector 311TX are arranged on the same side of the first resonant body 301. The second receiving connector 312RX and the second transmitting connector 312TX are both coupled to the second resonant body 302. Figure 3B When the filter 30 is disposed on the side of the antenna board 102 facing away from the circuit board 103, Fig.9A The second receiving connector 312RX shown can be connected to the antenna board 102 (such as Figure 3B ) to couple the antenna board 102 (as shown) to the antenna board 102 (as shown) through the second receiving connector 312RX. Figure 3B The second transmitting connector 312TX can be coupled to the circuit board 103 to transmit the electrical signal from the second resonant body 302 to the circuit board 103 (as shown in FIG. 1 ). Figure 3B In this case, the second resonant body 302 can receive the signal from the antenna plate 102 (as shown in FIG. Figure 3B After filtering, the electrical signal is transmitted to the circuit board 103 (as shown in Figure 3B As shown), the circuit board 103 can receive the electrical signal from the antenna board 102 and perform signal processing. At this time, the second resonant body 302 can be used as Figure 4B RX filter 32 is shown.

[0094] Or, for example, Figure 3B When the filter 30 is disposed on the side of the antenna board 102 facing away from the circuit board 103, Fig.9A The second receiving connector 312RX shown can be coupled to the circuit board 103 to transmit the signal from the circuit board 103 (such as Figure 3B The second transmitting connector 312TX can be connected to the antenna board 102 (as shown in FIG. Figure 3B ) to transmit the signal from the second resonant body 302 to the antenna board 102 (as shown) through the second transmitting connector 312TX Figure 3B In this case, the second resonant body 302 can transmit signals from the circuit board 103 (as shown in FIG. Figure 3B After filtering, the electrical signal is transmitted to the antenna board 102 (as shown in Figure 3B As shown), so that the antenna board 102 can send the electrical signal from the circuit board 103, at this time, the second resonant body 302 can be used as Figure 4B The TX filter 31 is shown.

[0095] The above is based on Fig.9A Any one of the first resonant body 301 and the second resonant body 302 shown can be Figure 4B The TX filter 31 or RX filter 32 shown is used as an example for illustration. In other embodiments of the present application, any resonant body in the filter 30 provided in the embodiment of the present application can also be a duplexer. The structure of the filter 30 is illustrated below.

[0096] For example, Fig.10 As shown, in the case where the filter 30 includes the first resonant body 301 and the second resonant body 302 stacked as described above, the filter 30 may include a first antenna connector 321 and a second antenna connector 322 in addition to the first receiving connector 311RX, the first transmitting connector 311TX, and the second receiving connector 312RX and the second transmitting connector 312TX.

[0097] The first end of the first antenna connector 321 (towards the first resonant body 301) is coupled to the first resonant body 301, so that the first antenna connector 321 can transmit signals to the first resonant body 301. The first antenna connector 321 and the first receiving connector 311RX can be located on opposite sides of the first resonant body 301, respectively.

[0098] Based on this, Figure 3A When the filter 30 is disposed between the antenna board 102 and the circuit board 103, Fig.10 The second end of the first antenna connector 321 (the end facing away from the first resonant body 301) can be connected to the antenna board 102 (such as Figure 3A ) is coupled to transmit the antenna from the antenna board 102 (as shown) through the first antenna connector 321. Figure 3B The electrical signal from the antenna board 102 is transmitted to the first resonant body 301, and the first resonant body 301 can filter the electrical signal from the antenna board 102, or transmit the signal filtered by the first resonant body 301 to the antenna board 102 (as shown in FIG. Figure 3B as shown) to send.

[0099] In this case, Fig.10 The first receiving connector 311RX shown can be connected to Figure 4A The RX circuit 1032 in the circuit board 103 is coupled to transmit the electric signal after filtering by the first resonant body 301 to the RX circuit 1032 in the circuit board 103 (such as Figure 4A As shown) for signal processing. And, Fig.10 The first transmit connector 311TX shown can be connected to Figure 4A The TX circuit 1031 in the circuit board 103 shown is coupled to transmit the electrical signal from the circuit board 103 to the first resonant body 301 for filtering, and then transmit it to the antenna board 102 (such as the antenna board 102) through the first antenna connector 321. Figure 3B In this way, the first resonant body 301 can filter the electrical signal received by the antenna board 102 and filter the electrical signal to be sent by the antenna board 102, so the first resonant body 301 can be the above-mentioned duplexer.

[0100] In addition, if Fig.11As shown, the first resonant body 301 may also be provided with a through hole 400. When the first resonant body 301 and the second resonant body 302 are stacked, the second antenna connector 322 may pass through the through hole 400 in the direction of the arrow to penetrate the first resonant body 301. In addition, the second antenna connector 322 may be decoupled from the first resonant body 301, so that there is no direct or indirect electrical connection between the second antenna connector 322 and the first resonant body 301. Similarly, the portion of the second antenna connector 322 that penetrates the first resonant body 301 and the first resonant body 301 may have the above-mentioned first gap H1 (such as Figure 5 As shown), the numerical value of the first gap H1 is the same as described above and will not be repeated here.

[0101] On this basis, continue Fig.10 As shown, the first end (the end facing the second resonant body 302) of the second antenna connector 322 is coupled to the second resonant body 302, so that electrical signals can be transmitted between the second antenna connector 322 and the second resonant body 302. The second antenna connector 322 and the second receiving connector 312RX can be located on opposite sides of the second resonant body 302, respectively.

[0102] In addition, by the same token, Figure 3A When the filter 30 is disposed between the antenna board 102 and the circuit board 103, Fig.10 The second end of the second antenna connector 322 (the end facing away from the second resonant body 302) can be connected to the antenna board 102 (such as Figure 3A ) to couple the antenna board 102 (as shown) to the antenna board 102 (as shown) through the second antenna connector 322. Figure 3B The electrical signal from the antenna board 102 is transmitted to the second resonant body 302, and the second resonant body 302 can filter the electrical signal from the antenna board 102, or transmit the signal filtered by the second resonant body 302 to the antenna board 102 (as shown in FIG. Figure 3B as shown) to send.

[0103] In this case, Fig.10 The second receiving connector 312RX shown can be connected to Figure 4A The RX circuit 1032 in the circuit board 103 is coupled to transmit the electric signal filtered by the second resonant body 302 to the RX circuit 1032 in the circuit board 103 (such as Figure 4A As shown) for signal processing. And, Fig.10 The second transmit connector 312TX shown can be connected to Figure 4AThe TX circuit 1031 in the circuit board 103 shown is coupled to transmit the electrical signal from the circuit board 103 to the second resonant body 302 for filtering, and then transmit it to the antenna board 102 (such as the antenna board 102) through the first antenna connector 321. Figure 3B In this way, the second resonant body 302 can filter the electrical signal received by the antenna board 102 and filter the electrical signal to be sent by the antenna board 102, so the second resonant body 302 can be the above-mentioned duplexer.

[0104] In some embodiments of the present application, continue as Fig.10 As shown, the first resonant body 301 and the second resonant body 302 have the same shape and external dimensions. Since the first resonant body 301 and the second resonant body 302 have the same shape and external dimensions, the first resonant body 301 and the second resonant body 302 having the same shape can be manufactured using the same manufacturing process and cutting process, thereby simplifying the manufacturing process of the resonant body.

[0105] Based on this, the outline shape of the first resonant body can be a symmetrical figure, and the first antenna connector 321 and the second antenna connector 322 are symmetrically arranged about the symmetry axis OO of the first resonant body 301. Fig.11 As shown, a through hole 400 symmetrically arranged with the second antenna connector 322 can be opened on the first resonant body 301, so that the second antenna connector 322 passing through the through hole 400 is symmetrical with the first antenna connector 321 about the symmetry axis OO ( Fig.10 In addition, the first receiving connector 311RX and the second receiving connector 312RX are symmetrically arranged about the symmetry axis OO of the first resonant body 301. The first transmitting connector 311TX and the second transmitting connector 312TX are symmetrically arranged about the symmetry axis OO of the first resonant body 301 ( Fig.10 Similarly, a through hole 400 symmetrically arranged with the second receiving connector 312RX is provided on the second resonant body 302, so that the first receiving connector 311RX and the second receiving connector 312RX passing through the through hole 400 are symmetrically arranged with respect to the symmetry axis OO ( Fig.10 A through hole 400 symmetrically arranged with the second transmitting connector 312TX is provided on the second resonant body 302, so that the first transmitting connector 311TX passing through the through hole 400 and the second transmitting connector 312TX are symmetrically arranged with respect to the symmetry axis OO ( Fig.10 as shown) are symmetrically arranged.

[0106] The above is based on Fig.10The first antenna connector 321 shown can be located on opposite sides of the first resonant body 301 with the first receiving connector 311RX (or, the first transmitting connector 311TX), and the second antenna connector 322 can be located on opposite sides of the second resonant body 302 with the second receiving connector 312RX (or, the second transmitting connector 312TX).

[0107] In other embodiments of the present application, Fig.12 As shown, when the filter 30 includes the first resonant body 301, the second resonant body 302, the first receiving connector 311RX, the first transmitting connector 311TX, the second receiving connector 312RX, the second transmitting connector 312TX, and the first antenna connector 321 and the second antenna connector 322, the first antenna connector 321 can be located on the same side of the first resonant body 301 as the first receiving connector 311RX (or, the first transmitting connector 311TX). In addition, the second antenna connector 322 can be located on the same side of the second resonant body 302 as the second receiving connector 312RX (or, the second transmitting connector 312TX).

[0108] In this case, continue as Fig.12 As shown, the first antenna connector 321 can penetrate the second resonant body 302 so that the second end of the first antenna connector 321 (the end away from the second resonant body 302) can be connected to the Figure 3A The first resonant body 301, the second resonant body 302, the first receiving connector 311RX, the first transmitting connector 311TX, the second receiving connector 312RX, the second transmitting connector 312TX, and the first antenna connector 321 and the second antenna connector 322 are arranged in the same manner as described above and will not be repeated here.

[0109] Similarly, the first antenna connector 321 penetrates the second resonant body 302 in the same manner as Fig.10 The manner in which the second antenna connector 322 penetrates the first resonant body 301 can be obtained in the same manner, and will not be repeated here. In addition, in order to decouple the first antenna connector 321 from the second resonant body 302, it can be obtained in the same manner that the portion of the first antenna connector 321 that penetrates the second resonant body 302 and the second resonant body 302 can have the above-mentioned first gap H1 (such as Figure 5 As shown), the numerical value of the first gap H1 is the same as described above and will not be repeated here.

[0110] The above is an example of the configuration of the first antenna connector 321 and the second antenna connector 322. For the convenience of description, the following description is based on Fig.10The configuration of the first antenna connector 321 and the second antenna connector 322 shown is described as an example.

[0111] As can be seen from the above, in order to adjust the resonant frequency of any one of the first resonant body 301 and the second resonant body 302, at least one resonant cavity is provided on the resonant body, and the resonant cavity can be composed of a blind hole opened on the resonant body and a part of the medium around the blind hole. The at least one resonant cavity can constitute a signal transceiver channel to achieve filtering of electrical signals. The following takes the filter 30 as a bandpass filter as an example to illustrate the setting method of the signal transceiver channel on the first resonant body 301 and the second resonant body 302 that are independent of each other.

[0112] For example, Fig.13 As shown, at least one first resonant cavity 601 and at least one second resonant cavity 602 are provided on the first resonant body 301. The at least one first resonant cavity 601 can constitute a first signal receiving channel 711. The at least one second resonant cavity 602 can constitute a first signal sending channel 712, and the passband frequency of the first signal receiving channel 711 and the first signal sending channel 712 is the first frequency F1. The embodiment of the present application does not limit the number of first resonant cavities 601 in the first signal receiving channel 711, the spacing between two adjacent first resonant cavities 601, and the aperture and depth of the blind hole constituting the first resonant cavity 601. Moreover, the embodiment of the present application does not limit the number of second resonant cavities 602 in the first signal sending channel 712, the spacing between two adjacent second resonant cavities 602, and the aperture and depth of the blind hole constituting the second resonant cavity 602. That is, there is no limitation on the size of the above-mentioned first frequency F1, Fig.13 It is only an example of the configuration of the first resonant cavity 601 and the second resonant cavity 602 .

[0113] On this basis, continue Fig.13 As shown, the first antenna connector 321 can be coupled to the first signal receiving channel 711 and the first signal transmitting channel 712 , the first receiving connector 311RX is coupled to the first signal receiving channel 711 , and the first transmitting connector 311TX is coupled to the first signal transmitting channel 712 .

[0114] Based on this, both ends of the first signal receiving channel 711 can be coupled to the first antenna connector 321 and the first receiving connector 311RX respectively, and both ends of the first signal transmitting channel 712 can be coupled to the first antenna connector 321 and the first transmitting connector 311TX respectively. Figure 3A When the antenna board 102 is coupled to the circuit board 103, the antenna board 102 (such as Figure 3A The electrical signal received by the circuit board 103 (as shown) is transmitted to the first signal receiving channel 711 for filtering, so that the electrical signal with the frequency of the first frequency F1 can be transmitted to the circuit board 103 (as shown) through the first receiving connector 311RX. Figure 3A In addition, the circuit board 103 (as shown) performs signal processing. Figure 3A The electrical signal on the antenna board 102 (as shown) can be transmitted to the first signal transmission channel 712 through the first transmission connector 311TX for filtering, so that the electrical signal with the frequency of the first frequency F1 can be transmitted to the antenna board 102 (as shown) through the first antenna connector 321. Figure 3A As shown) and transmit. In this way, the first resonant body 301 may have a signal transceiver channel (including a first signal receiving channel 711 and a first signal transmitting channel 712) corresponding to a single bandpass frequency, that is, the first frequency F1.

[0115] In some other embodiments of the present application, the first resonant body 301 may have signal transceiver channels corresponding to two passband frequencies. Fig.14 As shown, at least one third resonant cavity 603 and at least one fourth resonant cavity 604 may be provided on the first resonant body 301, the at least one third resonant cavity 603 constitutes a second signal receiving channel 721, the at least one fourth resonant cavity 604 constitutes a second signal sending channel 722, and the passband frequencies of the second signal receiving channel 721 and the second signal sending channel 722 are the second frequency F2.

[0116] The first antenna connector 321 is coupled to the second signal receiving channel 721 and the second signal transmitting channel 722, the first receiving connector 311RX is coupled to the second signal receiving channel 721, and the first transmitting connector 311TX is coupled to the second signal transmitting channel 722. Similarly, the two ends of the second signal receiving channel 721 can be coupled to the first antenna connector 321 and the first receiving connector 311RX, respectively, and the two ends of the second signal transmitting channel 722 can be coupled to the first antenna connector 321 and the first transmitting connector 311TX, respectively. Figure 3A When the antenna board 102 is coupled to the circuit board 103, the antenna board 102 (such as Figure 3A The electrical signal received by the circuit board 103 (as shown) is transmitted to the second signal receiving channel 721 for filtering, so that the electrical signal with the frequency of the second frequency F2 can be transmitted to the circuit board 103 (as shown) through the first receiving connector 311RX. Figure 3A In addition, the circuit board 103 (as shown) performs signal processing. Figure 3AThe electrical signal on the antenna board 102 (as shown) can be transmitted to the second signal transmission channel 722 through the first transmission connector 311TX for filtering, so that the electrical signal with the second frequency F2 can be transmitted to the antenna board 102 (as shown) through the first antenna connector 321. Figure 3A as shown) and send.

[0117] In this way, the first resonant body 301 may have a signal transceiver channel corresponding to the first frequency F1 (including a first signal receiving channel 711 and a first signal sending channel 712), and a signal transceiver channel corresponding to the second frequency F2 (including a second signal receiving channel 721 and a second signal sending channel 722). The first frequency F1 and the second frequency F2 may be the same, or the first frequency F1 and the second frequency F2 may be different, which is not limited in the present application.

[0118] In some embodiments of the present application, when the first frequency F1 and the second frequency F2 are different, the first antenna connector 321 can be coupled to the first signal receiving channel 711 and the first signal transmitting channel 712, and the second signal receiving channel 721 and the second signal transmitting channel 722 at the same time. For example, Fig.15 (along Fig.14 As described above, the first resonant body 301 is provided with a first blind hole 401, and the first blind hole 401 can be coupled with the first signal receiving channel 711 and the first signal transmitting channel 712, as well as the second signal receiving channel 721 and the second signal transmitting channel 722. In this case, the first antenna connector 321 can be arranged in the first blind hole 401, so that the first antenna connector 321 can be coupled with the first signal receiving channel 711 and the first signal transmitting channel 712, as well as the second signal receiving channel 721 and the second signal transmitting channel 722 through the first blind hole 401.

[0119] On this basis, continue Fig.15 As shown, in order to make the electrical signal received by the first antenna connector 321 more easily coupled to the first resonant body 301, or the electrical signal of the first resonant body 301 more easily coupled to the first antenna connector 321, in some embodiments of the present application, a coupling cavity 402 may be provided on the first resonant body 301, and one end of the coupling cavity 402 may be connected to the first blind hole 401. In addition, the other end of the coupling cavity 402 may also be connected to the blind hole of the resonant cavity closest to the first blind hole 401 in the signal transceiver channel coupled to the first blind hole 401, thereby making it easier for the electrical signal to be transmitted between the first blind hole 401 and the above-mentioned signal transceiver channel.

[0120] In addition, continue as Fig.15As shown, when the first antenna connector 321 receives the electrical signals of the first frequency F1 and the second frequency F2 at the same time, and the first frequency F1 and the second frequency F2 are different, the first antenna connector 321 can transmit the electrical signal of the first frequency F1 to the first signal receiving channel 711, and transmit the electrical signal of the second frequency F2 to the second signal receiving channel 721. In this way, the electrical signals of the first frequency F1 and the second frequency F2 are divided at the end of the first antenna connector 321 facing the first resonant body 301, and are coupled to different signal receiving channels respectively, so that the mutual crosstalk between the electrical signal with the first frequency F1 and the electrical signal with the second frequency F2 can be reduced.

[0121] On this basis, since the first receiving connector 311RX is coupled to both the first signal receiving channel 711 and the second signal receiving channel 721, in order to facilitate Fig.16 The RX circuit 1032 on the circuit board 103 shown can process the electrical signals of the first frequency F1 and the second frequency F2 received by the first receiving connector 311RX respectively, and the antenna device can also include a frequency divider 1033. The frequency divider 1033 can be arranged on the circuit board, and the frequency divider 1033 can be coupled with the circuit board 103 and the first receiving connector 311RX. In this way, the electrical signals of the first frequency F1 and the second frequency F2 received by the first receiving connector 311RX can be processed by the frequency divider 1033, and the electrical signals of the first frequency F1 and the second frequency F2 can be output to the RX circuit 1032 respectively.

[0122] In addition, continue as Fig.16 As shown, when the TX circuit 1031 on the circuit board 103 outputs the electrical signal of the first frequency F1 and the second frequency F2, the antenna device may include a frequency combiner 1034. The frequency combiner 1034 may be arranged on the circuit board 103, and the frequency combiner 1034 may be coupled with the circuit board 103 and the first transmitting connector 311TX. In this way, the electrical signal of the first frequency F1 and the second frequency F2 output by the TX circuit 1031 may be transmitted to the first transmitting connector 311TX after the frequency combining process of the frequency combiner 1034, and the first transmitting connector 311TX may transmit the electrical signal with the first frequency F1 through the frequency combiner 1034. Fig.15 The first signal transmission channel 712 shown in FIG. 1 is transmitted to the first antenna connector 321, and the first transmission connector 311TX can also transmit the electrical signal with the second frequency F2 through Fig.15 The second signal transmission channel 722 shown in FIG. 1 is transmitted to the first antenna connector 321, so that the first antenna connector 321 can be connected to the antenna 321 through Fig.16 The antenna board 102 shown sends the electrical signals of the first frequency F1 and the second frequency F2, so as to increase the signal receiving and transmitting channels.

[0123] The above is an example of the configuration of the signal receiving and transmitting channel of the first resonance body 301. Fig.17 The arrangement of the signal transceiver channel of the second resonant body 302 is illustrated by way of example.

[0124] In some embodiments of the present application, Fig.13 The signal transceiver channel of the first resonant body 301 shown in FIG. 3 can be set in the same way. Fig.17 As shown, at least one fifth resonant cavity 605 and at least one sixth resonant cavity 606 may be provided on the second resonant body 302. The at least one fifth resonant cavity 605 may constitute a third signal receiving channel 731, and the at least one sixth resonant cavity 606 may constitute a third signal transmitting channel 732, and the passband frequencies of the third signal receiving channel 731 and the third signal transmitting channel 732 are the third frequency F3.

[0125] The embodiment of the present application does not limit the number and size of the fifth resonant cavity 605 in the third signal receiving channel 731, and the number and size of the sixth resonant cavity 606 in the third signal sending channel 732, that is, the magnitude of the third frequency F3 is not limited. Fig.17 This is merely an example of the configuration of the fifth resonant cavity 605 and the sixth resonant cavity 606. In addition, the third frequency F3 may be the same as or different from the first frequency F1 and the second frequency F2.

[0126] On this basis, continue Fig.17 As shown, the second antenna connector 322 can be coupled to the third signal receiving channel 731 and the third signal transmitting channel 732 , the second receiving connector 312RX is coupled to the third signal receiving channel 731 , and the second transmitting connector 312TX is coupled to the third signal transmitting channel 732 .

[0127] Similarly, both ends of the third signal receiving channel 731 can be coupled to the second antenna connector 322 and the second receiving connector 312RX, respectively, and both ends of the third signal transmitting channel 732 can be coupled to the second antenna connector 322 and the second transmitting connector 312TX, respectively. Figure 3A When the antenna board 102 is coupled to the circuit board 103, the second receiving connector 312RX and the second transmitting connector 312TX can be coupled to the circuit board 103. Figure 3A The electrical signal received by the circuit board 103 (as shown) is transmitted to the third signal receiving channel 731 for filtering, so that the electrical signal with the frequency of the third frequency F3 can be transmitted to the circuit board 103 (as shown) through the second receiving connector 321RX. Figure 3AIn addition, the circuit board 103 (as shown) performs signal processing. Figure 3A The electrical signal on the antenna board 102 (as shown) can be transmitted to the third signal transmission channel 732 through the second transmission connector 321TX for filtering, so that the electrical signal with the third frequency F3 can be transmitted to the antenna board 102 (as shown) through the second antenna connector 322. Figure 3A As shown) and transmit. In this way, the second resonant body 302 may have a signal transceiver channel (including a third signal receiving channel 731 and a third signal transmitting channel 732) corresponding to a single bandpass frequency, that is, the third frequency F3.

[0128] Based on this, when the first resonant body 301 has a signal transceiver channel (including a first signal receiving channel 711 and a first signal sending channel 712), and the passband frequency of the signal transceiver channel is the above-mentioned first frequency F1, and the first frequency F1 and the third frequency F3 are different, since the first resonant body 301 and the second resonant body 302 are in a decoupled state, the crosstalk between the electrical signal (the passband frequency is the first frequency F1) filtered through the first resonant body 301 and the electrical signal (the passband frequency is the third frequency F3) filtered through the second resonant body 302 can be reduced.

[0129] Based on this, in the related technology, such as Fig.18 As shown, DF has two antenna connectors, namely ANT1 and ANT2, for receiving electrical signals of different frequencies. Among them, ANT1 is coupled to the receiving connector RX1 through the receiving path RX①, and ANT1 is coupled to the transmitting connector TX1 through the transmitting path TX①. In addition, ANT1 is coupled to the receiving connector RX2 through the receiving path RX②, and ANT1 is coupled to the transmitting connector TX2 through the transmitting path TX②. The receiving path RX① and the transmitting path TX① constitute a first signal path, and the receiving path RX② and the transmitting path TX② constitute a second signal path. The signals transmitted by the first signal path and the second signal path are different in frequency. In this case, when the size of the resonant cavity in the first signal path is adjusted, the resonant frequency of the second signal path will be affected. Similarly, when the size of the resonant cavity in the second signal path is adjusted, the resonant frequency of the first signal path will also be affected.

[0130] Compared with the related art, the embodiments of the present application provide Fig.17In the filter 30 shown, it can be seen from the above that the first resonant body 301 and the second resonant body 302 are in a decoupled state. Therefore, when the structure of the signal transceiver channel (including the first signal receiving channel 711 and the first signal sending channel 712) for filtering on the first resonant body 301 is adjusted, the structure of the signal transceiver channel (including the third signal receiving channel 731 and the third signal sending channel 732) for filtering on the second resonant body 302 will not be affected. Similarly, when the structure of the signal transceiver channel (including the third signal receiving channel 731 and the third signal sending channel 732) for filtering on the second resonant body 302 is adjusted, the structure of the signal transceiver channel (including the first signal receiving channel 711 and the first signal sending channel 712) for filtering on the first resonant body 301 will not be affected.

[0131] Fig.17 The second resonant body 302 is described by way of example as having a signal transceiver channel (including a third signal receiving channel 731 and a third signal transmitting channel 732). In other embodiments of the present application, the second resonant body 302 may have signal transceiver channels corresponding to two passband frequencies. Specifically, Fig.19 As shown, in addition to at least one fifth resonant cavity 605 for constituting the third signal receiving channel 731 and at least one sixth resonant cavity 606 for constituting the third signal transmitting channel 732, the second resonant body 302 is also provided with at least one seventh resonant cavity 607 and at least one eighth resonant cavity 608. Among them, at least one seventh resonant cavity 607 constitutes the fourth signal receiving channel 741, at least one eighth resonant cavity 608 constitutes the fourth signal transmitting channel 742, and the passband frequencies of the fourth signal receiving channel 741 and the fourth signal transmitting channel 742 are the fourth frequency F4.

[0132] In addition, the second antenna connector 322 can be coupled not only to the third signal receiving channel 731 and the third signal sending channel 732, but also to the fourth signal receiving channel 741 and the fourth signal sending channel 742. The second receiving connector 312RX is coupled to the third signal receiving channel 731 and the fourth signal receiving channel 741, and the second sending connector 312TX is coupled to the third signal sending channel 732 and the fourth signal sending channel 742.

[0133] The second antenna connector 322 and Figure 3A When the antenna board 102 is coupled to the circuit board 103, the second receiving connector 321RX and the second transmitting connector 312TX can be coupled to the circuit board 103. Figure 3AThe received electrical signal is transmitted to the fourth signal receiving channel 741 for filtering, so that the electrical signal with the frequency of the fourth frequency F4 can be transmitted to the circuit board 103 (as shown in FIG. Figure 3A In addition, the circuit board 103 (as shown) performs signal processing. Figure 3A The electrical signal on the antenna board 102 (as shown) can be transmitted to the fourth signal transmission channel 742 through the second transmission connector 312TX for filtering, so that the electrical signal with the frequency of the fourth frequency F4 can be transmitted to the antenna board 102 (as shown) through the second antenna connector 322. Figure 3A as shown) and send.

[0134] In this way, the second resonant body 302 may have a signal transceiver channel corresponding to the third frequency F3 (including a third signal receiving channel 731 and a third signal sending channel 732), and a signal transceiver channel corresponding to the fourth frequency F4 (including a fourth signal receiving channel 741 and a fourth signal sending channel 742). The fourth frequency F4 and the third frequency F3 may be the same, or the fourth frequency F4 and the third frequency F3 may be different, which is not limited in this application. In addition, the fourth frequency F4 may be the same as or different from any one of the first frequency F1 and the second frequency F2, which is not limited in this application.

[0135] Similarly, in some embodiments of the present application, when the fourth frequency F4 is different from the third frequency F3, a second blind hole (not shown in the figure) may also be provided on the second resonant body 302, and the second blind hole may be coupled with the third signal receiving channel 731 and the third signal transmitting channel 732, and the fourth signal receiving channel 741 and the fourth signal transmitting channel 742. In this case, the second antenna connector 322 may be provided in the second blind hole, so that the second antenna connector 322 may be coupled with the third signal receiving channel 731 and the third signal transmitting channel 732, and the fourth signal receiving channel 741 and the fourth signal transmitting channel 742 through the second blind hole.

[0136] In this way, when the second antenna connector 322 receives the third frequency F3 and the electrical signal of the third frequency F4 at the same time, the second antenna connector 322 can transmit the electrical signal of the third frequency F3 to the third signal receiving channel 731, and transmit the electrical signal of the fourth frequency F4 to the fourth signal receiving channel 741. In this way, by dividing the received electrical signals of the third frequency F3 and the third frequency F4 at one end of the second antenna connector 322 facing the second resonant body 302, and coupling them to different signal receiving channels respectively, the mutual crosstalk between the electrical signal with the third frequency F3 and the electrical signal with the fourth frequency F4 can be reduced.

[0137] From the above, we can see that Fig.17 and Fig.19 The description is made by taking the example that the first resonant body 301 has a signal transceiver channel (including a first signal receiving channel 711 and a first signal sending channel 712). In other embodiments of the present application, the first resonant body 301 may also include Fig.14 The two signal transceiver channels shown are a signal transceiver channel composed of a first signal receiving channel 711 and a first signal sending channel 712 , and a signal transceiver channel composed of a second signal receiving channel 721 and a second signal sending channel 722 .

[0138] Based on this, in some embodiments of the present application, Fig. 20 As shown, the first resonant body 301 may include two signal transceiver channels, namely, a signal transceiver channel (bandpass frequency is the first frequency F1) composed of a first signal receiving channel 711 and a first signal sending channel 712, and a signal transceiver channel (bandpass frequency is the second frequency F2) composed of a second signal receiving channel 721 and a second signal sending channel 722. The second resonant body 302 may include two signal transceiver channels, namely, a signal transceiver channel (bandpass frequency is the third frequency F3) composed of a third signal receiving channel 731 and a third signal sending channel 732, and a signal transceiver channel (bandpass frequency is the fourth frequency F4) composed of a fourth signal receiving channel 741 and a fourth signal sending channel 742.

[0139] The first frequency F1 and the third frequency F3 may be the same, and the second frequency F2 and the fourth frequency F4 may be the same. The first frequency F1 and the second frequency F2 may be different. In this case, any one of the first resonant body 301 and the second resonant body 302 may have two signal transceiver channels with different frequencies.

[0140] Based on this, since the first frequency F1 and the third frequency F3 are the same, the first signal receiving channel 711 can have the same structure as the third signal receiving channel 731, and the first signal sending channel 712 can have the same structure as the third signal sending channel 732. Specifically, the number and size of the first resonant cavities 601 in the first signal receiving channel 711, as well as the spacing between two adjacent first resonant cavities 601 and other parameters are respectively the same as the number and size of the fifth resonant cavities 605 in the third signal receiving channel 731, as well as the spacing between two adjacent fifth resonant cavities 605 and other parameters. The number and size of the second resonant cavities 602 in the first signal sending channel 712, as well as the spacing between two adjacent second resonant cavities 602 and other parameters are respectively the same as the number and size of the sixth resonant cavities 606 in the third signal sending channel 732, as well as the spacing between two adjacent sixth resonant cavities 606 and other parameters.

[0141] Similarly, since the second frequency F2 is the same as the fourth frequency F4, the second signal receiving channel 721 can have the same structure as the fourth signal receiving channel 741, and the second signal sending channel 722 can have the same structure as the fourth signal sending channel 742. The arrangement of the resonant cavity in the signal transceiver channels with the same structure is the same as described above and will not be repeated here.

[0142] The above description is based on an example in which the filter 30 includes two resonant bodies stacked in layers, namely the first resonant body 301 and the second resonant body 302. In other embodiments of the present application, Fig.21 As shown, the filter 30 may also include three layers of resonant bodies, namely, a first resonant body 301, a second resonant body 302, and a third resonant body 303. The first antenna connector 321, the first receiving connector 311RX, and the first transmitting connector 311TX on the first resonant body 301, and the second antenna connector 322, the second receiving connector 312RX, and the second transmitting connector 312TX on the second resonant body 302 are arranged in the same manner as described above, and will not be repeated here.

[0143] In addition, continue as Fig.21 As shown, the third resonant body 303 is stacked on the side of the second resonant body 302 away from the first resonant body 301, and the third resonant body 303 is decoupled from at least one of the first resonant body 301 and the second resonant body 302. The first connector (including the first receiving connector 311RX and the first transmitting connector 311TX) passes through the second resonant body 302 and the third resonant body 303, and the first receiving connector 311RX and the first transmitting connector 311TX are decoupled from the second resonant body 302 and the third resonant body 303. In addition, the second ends of the first receiving connector 311RX and the first transmitting connector 311TX (i.e., the ends away from the first resonant body 301) extend out of the third resonant body 303.

[0144] Continue as Fig.21 As shown, the second connectors (the second receiving connector 312RX and the second transmitting connector 312TX) pass through the third resonant body 303, and the second receiving connector 312RX and the second transmitting connector 312TX are decoupled from the third resonant body 303. The second ends of the second receiving connector 312RX and the second transmitting connector 312TX (i.e., the ends facing away from the second resonant body 302) extend out of the third resonant body 303.

[0145] On this basis, the filter 30 may further include at least one third connector (e.g., a third receiving connector 313RX and a third transmitting connector 313TX), and the first ends of the third receiving connector 313RX and the third transmitting connector 313TX (i.e., the ends close to the third resonant body 303) are coupled to the third resonant body 303. The third receiving connector 313RX and the third transmitting connector 313TX are arranged on the same side of the first resonant body 301 as the second connector (the second receiving connector 312RX or the second transmitting connector 312TX). In addition, the filter 30 may further include a third antenna connector 323, and the end of the third antenna connector 323 facing the third resonant body 303 is coupled to the third resonant body 303, and the end of the third antenna connector 323 facing away from the third resonant body 303 passes through the second resonant body 302 and the first resonant body 301, and extends out of the first resonant body 301. The configuration of the signal transceiver channel on the third resonant body 303, and the coupling mode between the third antenna connector 323, the third receiving connector 313RX and the third transmitting connector 313TX and the signal transceiver channel are the same as described above and will not be repeated here.

[0146] Similarly, in this way, since any two resonant bodies among the first resonant body 301, the second resonant body 302 and the third resonant body 303 are decoupled from each other, any two resonant bodies among the first resonant body 301, the second resonant body 302 and the third resonant body 303 are independent of each other, and the electrical signal transmitted on the first resonant body 301 and the electrical signal transmitted on the second resonant body 302 and the third resonant body 303 will not affect each other. In this case, the first resonant body 301, the second resonant body 302 and the third resonant body 303 can have independent signal transceiver channels respectively, so that the number of signal transceiver channels can be effectively increased. In addition, multiple resonant bodies are stacked, so that the layout area of ​​the circuit board 103 occupied by the filter 30 can be reduced while ensuring that the number of channels can be increased, thereby alleviating the problem of large size of the antenna device and communication equipment with the above filter 30.

[0147] The above description is based on the example that the filter 30 can also include a three-layer resonant body. The filter 30 can also include more than three resonant bodies stacked in layers. The stacking method of the resonant body, the signal transceiver channel on the resonant body, and the setting method of the connector are the same as described above and will not be repeated here.

[0148] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A filter, characterized in that: include: a first resonant body; A second resonant body is stacked with the first resonant body, and the second resonant body is decoupled from the first resonant body; at least one first connector, which passes through the second resonant body and is decoupled from the second resonant body; a first end of the first connector is coupled to the first resonant body, and a second end of the first connector extends out of the second resonant body; at least one second connector, a first end of the second connector coupled to the second resonant body; The second connector and the first connector are arranged on the same side of the first resonant body.

2. The filter according to claim 1, characterized in that: The at least one first connector comprises: a first receiving connector; A first transmitting connector; the first transmitting connector and the first receiving connector are located on the same side of the first resonant body; The at least one second connector comprises: A second receiving connector; the second receiving connector and the first receiving connector are arranged on the same side of the first resonant body; A second transmitting connector; the second transmitting connector and the first transmitting connector are arranged on the same side of the first resonant body.

3. The filter according to claim 2, characterized in that The filter further comprises: a first antenna connector, wherein a first end of the first antenna connector is coupled to the first resonant body; the first antenna connector and the first receiving connector are respectively located on opposite sides of the first resonant body; The second antenna connector passes through the first resonant body and is decoupled from the first resonant body; the first end of the second antenna connector is coupled to the second resonant body; the second antenna connector and the second receiving connector are respectively located on opposite sides of the second resonant body.

4. The filter according to claim 2, characterized in that The filter further comprises: a first antenna connector, which passes through the second resonant body and is decoupled from the second resonant body; a first end of the first antenna connector is coupled to the first resonant body; and the first antenna connector and the first receiving connector are located on the same side of the first resonant body; A second antenna connector, wherein a first end of the second antenna connector is coupled to the second resonant body; and the second antenna connector and the second receiving connector are located on the same side of the second resonant body.

5. The filter according to claim 3 or 4, characterized in that: At least one first resonant cavity and at least one second resonant cavity are provided on the first resonant body, the at least one first resonant cavity constitutes a first signal receiving channel; the at least one second resonant cavity constitutes a first signal sending channel, and the passband frequencies of the first signal receiving channel and the first signal sending channel are the first frequency; The first antenna connector is coupled to the first signal receiving channel and the first signal sending channel; the first receiving connector is coupled to the first signal receiving channel, and the first sending connector is coupled to the first signal sending channel.

6. The filter according to claim 5, characterized in that At least one third resonant cavity and at least one fourth resonant cavity are provided on the first resonant body, the at least one third resonant cavity constitutes a second signal receiving channel; the at least one fourth resonant cavity constitutes a second signal sending channel, and the passband frequencies of the second signal receiving channel and the second signal sending channel are the second frequency; The first antenna connector is coupled to the second signal receiving channel and the second signal sending channel; the first receiving connector is coupled to the second signal receiving channel, and the first sending connector is coupled to the second signal sending channel.

7. The filter according to claim 6, characterized in that A first blind hole is provided on the first resonant body, and the first blind hole is coupled with the first signal receiving channel, the first signal sending channel, the second signal receiving channel and the second signal sending channel; wherein the first antenna connector is provided in the first blind hole.

8. The filter according to claim 5, characterized in that At least one fifth resonant cavity and at least one sixth resonant cavity are provided on the second resonant body, the at least one fifth resonant cavity constitutes a third signal receiving channel; the at least one sixth resonant cavity constitutes a third signal sending channel, and the passband frequencies of the third signal receiving channel and the third signal sending channel are the third frequency; The second antenna connector is coupled to the third signal receiving channel and the third signal sending channel; the second receiving connector is coupled to the third signal receiving channel, and the second sending connector is coupled to the third signal sending channel.

9. The filter according to claim 6 or 7, characterized in that: At least one fifth resonant cavity and at least one sixth resonant cavity are provided on the second resonant body, the at least one fifth resonant cavity constitutes a third signal receiving channel; the at least one sixth resonant cavity constitutes a third signal sending channel, and the passband frequencies of the third signal receiving channel and the third signal sending channel are the third frequency; At least one seventh resonant cavity and at least one eighth resonant cavity are provided on the second resonant body, the at least one seventh resonant cavity constitutes a fourth signal receiving channel; the at least one eighth resonant cavity constitutes a fourth signal sending channel, and the passband frequencies of the fourth signal receiving channel and the fourth signal sending channel are the fourth frequency; Among them, the second antenna connector is coupled with the third signal receiving channel, the third signal sending channel, the fourth signal receiving channel and the fourth signal sending channel; the second receiving connector is coupled with the third signal receiving channel and the fourth signal receiving channel, and the second sending connector is coupled with the third signal sending channel and the fourth signal sending channel.

10. The filter according to any one of claims 1 to 9, characterized in that: The outline shape of the first resonant body is a symmetrical figure; The first antenna connector and the second antenna connector are symmetrically arranged about the symmetry axis of the first resonant body; The first receiving connector and the second receiving connector are symmetrically arranged about the symmetry axis of the first resonant body; The first transmitting connector and the second transmitting connector are symmetrically arranged about a symmetry axis of the first resonant body.

11. The filter according to claim 9, characterized in that The first frequency is the same as the third frequency, and the second frequency is the same as the fourth frequency.

12. The filter according to any one of claims 1 to 11, characterized in that: The filter further comprises: A third resonant body is stacked and arranged on a side of the second resonant body away from the first resonant body; the third resonant body is decoupled from the first resonant body and the second resonant body; the first connector passes through the third resonant body and is decoupled from the third resonant body, and the second end of the first connector extends out of the third resonant body; the second connector passes through the third resonant body and is decoupled from the third resonant body, and the second end of the second connector extends out of the third resonant body; At least one third connector, a first end of the third connector is coupled to the third resonance body; the third connector and the second connector are arranged on the same side of the first resonance body.

13. The filter according to any one of claims 1 to 12, characterized in that: The first gap H1 is defined between a portion of the first connector that passes through the second resonant body and the second resonant body.

14. The filter according to claim 13, characterized in that 0<H1≤3mm.

15. The filter according to any one of claims 1 to 14, characterized in that: A second gap H2 is defined between the first resonant body and the second resonant body.

16. The filter according to any one of claims 1 to 14, characterized in that: The filter further comprises: The insulating adhesive layer is disposed between the first resonant body and the second resonant body, and the insulating adhesive layer is bonded to the first resonant body and the second resonant body.

17. An antenna device, characterized in that: include: Circuit boards; The filter according to any one of claims 1 to 16, wherein the filter is coupled to the circuit board.

18. The antenna device according to claim 17, characterized in that: The at least one first connector includes a first receiving connector and a first transmitting connector; the filter further includes a first antenna connector, the first antenna connector is coupled to the first resonant body; The first resonant body is provided with a first signal receiving channel and a first signal transmitting channel, and the passband frequency of the first signal receiving channel and the first signal transmitting channel is a first frequency; the first resonant body is provided with a second signal receiving channel and a second signal transmitting channel, and the passband frequency of the second signal receiving channel and the second signal transmitting channel is a second frequency; wherein the first antenna connector is coupled with the first signal receiving channel, the first signal transmitting channel, the second signal receiving channel and the second signal transmitting channel; the first receiving connector is coupled with the first signal receiving channel and the second signal receiving channel, and the first transmitting connector is coupled with the first signal transmitting channel and the second signal transmitting channel; The antenna device further comprises: A frequency divider is arranged on the circuit board, and the frequency divider is coupled with the circuit board and the first receiving connector; a frequency combiner is arranged on the circuit board, and the frequency combiner is coupled with the circuit board and the first sending connector.

19. A communication device, characterized in that: include: A mounting bracket and an antenna device as claimed in claim 17 or 18, wherein the antenna device is arranged on the mounting bracket.

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