Dual-cavity phase-shifting feeding device and phase shifter

Abstract

The application discloses a double-cavity phase-shifting feed device and a phase shifter, the double-cavity phase-shifting feed device comprising a metal cavity, an installation cavity, a slit groove, a borrowing cavity and an installation port are arranged in the metal cavity, input and output sockets are arranged on the side of the installation cavity away from the borrowing cavity; a transmission circuit assembly is arranged on the metal cavity and is provided with input and output pins; a feed network assembly is arranged on the side of the metal cavity where the input and output sockets are located; the metal cavity is arranged in a double-cavity structure and is connected through a slit groove, the slit groove needs to be selected to have a proper size, so that the transmission line assembly can pass through the slit groove and the slit groove can also fix one side of the transmission line assembly, and the structure is more reliable; the transmission mode of the phase shifter signal is a strip line transmission mode, the phase shifter signal is directly connected with an external transmission network, the cable is not used as a transition section, the complexity of the whole feed network is reduced, the size of the phase shifter is smaller, the cost of the phase shifter is lower, and the performance consistency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of phase shifters, in particular to a double-cavity phase shift feeding device and a phase shifter. BACKGROUND

[0002] In the existing base station antenna electric adjustment technology, the phase shifter is the core device for realizing the electric adjustment function, and is connected with the radiation unit through a cable, so that the whole feeding network is relatively complex, the size is relatively large, the cost is relatively high, and the performance consistency is relatively low, which is not conducive to the miniaturization of the base station antenna, therefore, a double-cavity phase shift feeding device and a phase shifter are needed to solve the above problems. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application proposes a double-cavity phase shift feeding device and a phase shifter.

[0004] An embodiment of the present application adopts the technical solution to solve its technical problems: a double-cavity phase shift feeding device, comprising:

[0005] A metal cavity is provided with a mounting cavity and a borrowing cavity communicating with the mounting cavity through a gap slot, at least one side of the metal cavity is provided with a mounting port communicating with the mounting cavity and the borrowing cavity, and an input socket and an output socket are arranged on the side of the metal cavity away from the borrowing cavity;

[0006] A transmission circuit assembly is provided with an input pin and an output pin;

[0007] A feeding network assembly is arranged on the side of the metal cavity where the input socket and the output socket are located, and an external transmission network accesses the feeding network assembly;

[0008] The transmission circuit assembly can be inserted into the mounting cavity and the borrowing cavity through the mounting port, and move towards the feeding network assembly, so that the input pin is welded to the feeding network assembly through the input socket, the output pin is welded to the feeding network assembly through the output socket, and at least part of the transmission circuit assembly extends into the gap slot.

[0009] Further, the transmission circuit assembly comprises:

[0010] A first substrate is provided with a first circuit and a second circuit connected by a metallized via on both sides, an input pin and an output pin are arranged on the first substrate, and the input pin and the output pin are respectively provided with an input connection port connected with the first circuit and an output connection port connected with the second circuit;

[0011] A first dielectric plate is arranged on one side of the first substrate;

[0012] A second dielectric plate is arranged on the other side of the first substrate.

[0013] Further, the first substrate is a PCB board or a metal plate.

[0014] Further, the feeding network assembly comprises:

[0015] a second substrate, on which an input slot and an output slot are arranged;

[0016] a ground layer, arranged on a side of the second substrate close to the metal cavity and connected with the metal cavity;

[0017] a first feeding network and a second feeding network, arranged on a side of the second substrate away from the metal cavity, the input pin being insertable into the input slot through the input opening and connected with the first feeding network, and the output pin being insertable into the output slot through the output opening and connected with the second feeding network.

[0018] Further, the second substrate is provided with a first pad and a second pad on the side away from the metal cavity, the input pin and the first feeding network being welded on the first pad, and the output pin and the second feeding network being welded on the second pad.

[0019] Further, the height of the transmission circuit assembly is not greater than the sum of the heights of the mounting cavity, the slot groove and the borrowing cavity.

[0020] Further, the width of the borrowing cavity is not less than the width of the slot groove.

[0021] A phase shifter comprising the double-cavity phase-shifting feeding device.

[0022] The beneficial effects of the present application are as follows: a double-cavity phase shifter feeding device and a phase shifter, the double-cavity phase shifter feeding device comprises a metal cavity, an installation cavity and a borrowing cavity which are communicated through a gap slot are arranged in the metal cavity, at least one side of the metal cavity is provided with an installation port which is communicated with the installation cavity and the borrowing cavity, an input plug and an output plug are arranged on the side of the installation cavity which is opposite to the borrowing cavity; a transmission circuit assembly is provided with an input pin and an output pin; a feeding network assembly is arranged on the side of the metal cavity where the input plug and the output plug are located, and an external transmission network is connected to the feeding network assembly; the transmission circuit assembly can be inserted into the installation cavity and the borrowing cavity through the installation port and move towards the feeding network assembly, so that the input pin is welded to the feeding network assembly through the input plug, the output pin is welded to the feeding network assembly through the output plug, and at least part of the transmission circuit assembly extends into the gap slot; by arranging the metal cavity as a double-cavity structure connected by a gap slot, the gap slot needs to be selected to have a proper size to facilitate the passing of the transmission line assembly, and at the same time, the gap slot can fix one side of the transmission line assembly, so that the structure is more reliable; the transmission mode of the phase shifter signal is a strip line transmission, which is directly connected to the external transmission network, so that the cable is not needed as a transition section, the complexity of the whole feeding network is reduced, the size of the phase shifter is smaller, the cost is lower, and the performance consistency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description, taken in conjunction with the following drawings in which:

[0024] Figure 1 It is a first structure schematic view of a first embodiment of a double-cavity phase shifter feeding device;

[0025] Figure 2 It is an exploded view of a double-cavity phase shifter feeding device;

[0026] Figure 3 It is a first structure schematic view of a transmission circuit assembly;

[0027] Figure 4 It is a second structure schematic view of a transmission circuit assembly;

[0028] Figure 5 It is a second structure schematic view of a first embodiment of a double-cavity phase shifter feeding device;

[0029] Figure 6 It is a structure schematic view of a second embodiment of a double-cavity phase shifter feeding device. DETAILED DESCRIPTION

[0030] The detailed description of the present application will be described in detail in this part, the preferred embodiments of the present application are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical solution of the present application, but it cannot be understood as a limitation on the protection scope of the present application.

[0031] In the description of the present application, the meaning of multiple is more than two, greater than, less than, more than, etc. is not included in the number, above, below, within, etc. is included in the number. If it is described as first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0032] In the description of the present application, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0033] In the present application, unless otherwise explicitly limited, the words "set", "install", "connect" and the like should be broadly understood, for example, they can be directly connected, or indirectly connected through an intermediate medium; can be fixedly connected, or can be detachably connected, or can be integrally formed; can be mechanically connected; can be the internal communication or interaction relationship of two elements. The skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0034] Reference Figures 1 to 6 A double-cavity phase-shifting feeding device, comprising:

[0035] A metal cavity 10, in which an installation cavity 11 and a borrowing cavity 13 communicating with the installation cavity 11 through a gap slot 12 are arranged, at least one side of the metal cavity 10 is provided with an installation port 14 communicating with the installation cavity 11 and the borrowing cavity 13, and an input socket 15 and an output socket 16 are arranged on the side of the installation cavity 11 facing away from the borrowing cavity 13;

[0036] A transmission circuit assembly 20, provided with an input pin 41 and an output pin 42 thereon;

[0037] A feeding network assembly 30, arranged on the side of the metal cavity 10 where the input socket 15 and the output socket 16 are located, and an external transmission network accesses the feeding network assembly 30;

[0038] The transmission circuit assembly 20 can be inserted into the installation cavity 11 and the through cavity 13 through the installation port 14, and moved towards the power supply network assembly 30, so that the input pin 41 is welded to the power supply network assembly 30 through the input port 15, the output pin 42 is welded to the power supply network assembly 30 through the output port 16, and at least part of the transmission circuit assembly 20 extends into the gap slot 12.

[0039] In the present application, the assembly process of the power supply device is as follows: the transmission circuit assembly 20 is inserted into the installation cavity 11, the gap slot 12 and the through cavity 13 from the installation port 14 on the side of the metal cavity 10, when the input pin 41 and the output pin 42 on the transmission circuit assembly 20 are moved to be opposite to the input port 15 and the output port 16 respectively, the transmission circuit assembly 20 is moved along the height direction of the metal cavity 10 towards the power supply network assembly 30 until the input pin 41 and the output pin 42 on the transmission circuit assembly 20 are inserted into the input port 15 and the output port 16 respectively and extend out of the metal cavity 10, then the power supply network assembly 30 is assembled on the side of the metal cavity 10 where the input port 15 and the output port 16 are located, specifically, the input pin 41 and the output pin 42 on the transmission circuit assembly 20 are inserted into the input slot 32 and the output slot 33 on the power supply network assembly 30 respectively, and the input connection port 25 on the input pin 41 is welded to the first solder pad on the edge of the side of the input slot 32 through welding, and the output connection port 26 on the output pin 42 is welded to the second solder pad on the edge of the side of the output slot 33 through welding, to realize the electrical connection between the transmission circuit assembly 20 and the power supply network assembly 30; further, the phase change of the transmission circuit assembly 20 is realized by sliding the first dielectric plate 27 and the second dielectric plate 28 along the preset track between the transmission circuit assembly 20 and the metal cavity 10, by changing the electrical length of the transmission network to change the output phase, wherein the materials of the first dielectric plate 27 and the second dielectric plate 28 can be selected according to the required phase shift amount; the advantage of the present application is that: by setting the metal cavity 10 as a double-cavity structure connected by a gap slot 12, the gap slot 12 needs to be selected with appropriate size to facilitate the passage of the transmission line assembly 20, and at the same time plays a role in fixing one side of the transmission line assembly 20, the structure is more reliable; the transmission mode of the phase shifter signal is a strip line transmission, which is directly connected to the external transmission network, eliminating the need for a cable as a transition section, reducing the complexity of the entire power supply network, making the size of the phase shifter smaller, the cost lower, and improving the consistency of performance.

[0040] As a preferred embodiment of the transmission circuit assembly 20, the transmission circuit assembly 20 comprises:

[0041] The first substrate 21 is provided with the first circuit 23 and the second circuit 24 connected by the metallized via 22 on both sides, and the input pin 41 and the output pin 42 are arranged on the first substrate 21, and the input connection port 25 connected with the first circuit 23 and the output connection port 26 connected with the second circuit 24 are arranged on the input pin 41 and the output pin 42 respectively;

[0042] The first medium plate 27 is arranged on one side of the first substrate 21.

[0043] The second medium plate 28 is arranged on the other side of the first substrate 21.

[0044] The first substrate 21 is arranged as a PCB plate or a metal plate.

[0045] As a preferred embodiment of the feeding network assembly 30, the feeding network assembly 30 comprises:

[0046] The second substrate 31 is arranged with the input slot 32 and the output slot 33 thereon;

[0047] The ground layer 34 is arranged on the side of the second substrate 31 close to the metal cavity 10 and connected with the metal cavity 10 to ensure the continuity of signal transmission;

[0048] The first feeding network 35 and the second feeding network 36 are arranged on the side of the second substrate 31 away from the metal cavity 10, the input pin 41 can be inserted into the input slot 32 through the input port 15 and connected with the first feeding network 35, and the output pin 42 can be inserted into the output slot 33 through the output port 16 and connected with the second feeding network 36.

[0049] The first pad and the second pad are arranged on the side of the second substrate 31 away from the metal cavity 10, the input pin 41 and the first feeding network 35 are welded on the first pad, and the output pin 42 and the second feeding network 36 are welded on the second pad.

[0050] The height of the transmission circuit assembly 20 is not greater than the sum of the heights of the mounting cavity 11, the gap slot 12 and the borrowing cavity 13, so that the transmission circuit assembly 20 can be smoothly installed in the mounting cavity 11, the gap slot 12 and the borrowing cavity 13. Of course, after the final assembly of the transmission circuit assembly 20 is completed, it can only extend into part of the gap slot 12, or it can extend into the entire gap slot 12, or it can extend partially into the borrowing cavity 13.

[0051] The width of the borrowing cavity 13 is not less than the width of the gap slot 12; referring to Figure 5 As a first embodiment of the width of the borrowing cavity 13, the width of the borrowing cavity 13 is greater than the width of the gap slot 12; and referring to Figure 6As a second embodiment of the width of the borrowing cavity 13, the width of the borrowing cavity 13 is equal to the width of the gap slot 12.

[0052] A phase shifter comprising the dual cavity phase shifting feed arrangement.

[0053] Of course, the present application is not limited to the above-described embodiments, and those skilled in the art can make equivalent modifications or replacements without departing from the spirit of the present application, and these equivalent modifications and replacements are all included in the scope defined by the claims of the present application.

Claims

1. A dual-cavity phase-shifting feeder, characterized in that, include: A metal cavity (10) is provided therein, which has an installation cavity (11) and a borrowing cavity (13) that communicates with the installation cavity (11) through a slot (12). At least one side of the metal cavity (10) is provided with an installation port (14) that communicates with the installation cavity (11) and the borrowing cavity (13). The side of the installation cavity (11) facing away from the borrowing cavity (13) is provided with an input socket (15) and an output socket (16). A transmission circuit assembly (20) having an input pin (41) and an output pin (42); A power supply network assembly (30) is disposed on the side of the metal cavity (10) where the input port (15) and output port (16) are located, and an external transmission network is connected to the power supply network assembly (30); The transmission circuit assembly (20) can be inserted into the mounting cavity (11) and the borrowing cavity (13) through the mounting port (14) and move toward the power supply network assembly (30), so that the input pin (41) is soldered to the power supply network assembly (30) through the input port (15) and the output pin (42) is soldered to the power supply network assembly (30) through the output port (16), and at least a portion of the transmission circuit assembly (20) extends into the slot (12).

2. The dual-cavity phase-shifting feeder according to claim 1, characterized in that, The transmission circuit assembly (20) includes: The first substrate (21) has a first circuit (23) and a second circuit (24) connected by metallized vias (22) on both sides. The input pin (41) and the output pin (42) are disposed on the first substrate (21). The input pin (41) and the output pin (42) are respectively provided with an input connection port (25) connected to the first circuit (23) and an output connection port (26) connected to the second circuit (24). A first dielectric substrate (27) is disposed on one side of the first substrate (21); The second dielectric plate (28) is disposed on the other side of the first substrate (21).

3. The dual-cavity phase-shifting power supply device according to claim 2, characterized in that: The first substrate (21) is configured as a PCB board or a metal plate.

4. The dual-cavity phase-shifting feeder according to claim 1, characterized in that, The power supply network component (30) includes: The second substrate (31) is provided with an input slot (32) and an output slot (33); A grounding layer (34) is disposed on the side of the second substrate (31) near the metal cavity (10) and connected to the metal cavity (10); The first power supply network (35) and the second power supply network (36) are disposed on the side of the second substrate (31) facing away from the metal cavity (10). The input pin (41) can be inserted into the input slot (32) through the input port (15) and connected to the first power supply network (35). The output pin (42) can be inserted into the output slot (33) through the output port (16) and connected to the second power supply network (36).

5. A dual-cavity phase-shifting feeder according to claim 4, characterized in that: The second substrate (31) has a first pad and a second pad on the side facing away from the metal cavity (10). The input pin (41) and the first power supply network (35) are soldered to the first pad, and the output pin (42) and the second power supply network (36) are soldered to the second pad.

6. The dual-cavity phase-shifting power supply device according to claim 1, characterized in that: The height of the transmission circuit assembly (20) is not greater than that of the mounting cavity. The sum of the heights of (11), the slot (12), and the borrowing cavity (13).

7. A dual-cavity phase-shifting feeder according to claim 1, characterized in that: The width of the borrowing cavity (13) is not less than the width of the slot (12).

8. A phase shifter, characterized in that: Includes the dual-cavity phase-shifting power supply device according to any one of claims 1-7.

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