CN111370814B

CN111370814B - Phase shifter and antenna

Info

Publication number: CN111370814B
Application number: CN201811597784.5A
Authority: CN
Inventors: 李超超; 金莉; 李渭民; 张巾
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-12-26
Filing date: 2018-12-26
Publication date: 2021-12-17
Anticipated expiration: 2038-12-26
Also published as: CN111370814A; WO2020135506A1

Abstract

The application provides a phase shifter and an antenna. The phase shifter includes: the cavity, stripline setting is inside the cavity. Specifically, the phase shifter further comprises a weldable grounding block, wherein the grounding block is arranged on the cavity and is electrically connected with the strip line, direct current grounding of the strip line is achieved, and the purpose of lightning protection of the strip line is achieved. The technical scheme that this application provided can make the direct current ground lightning protection of the inside stripline of the electroless metal cavity in the looks shifter.

Description

Phase shifter and antenna

Technical Field

The present application relates to the field of communications, and more particularly, to a phase shifter and an antenna.

Background

In various communication scenarios, a dc lightning grounding device on an antenna of a base station needs to be integrated on a phase shifter. For the phase shifter of the electroplated metal cavity, when the lightning protection grounding design is completed, the weldable connecting wire is only needed to be directly welded on the electroplated metal cavity of the phase shifter, and the weldable connecting wire and the strip line inside the electroplated metal cavity are welded to realize the strip line lightning protection direct current grounding inside the electroplated metal cavity.

However, with the development of technology, the non-plated metal cavity is commonly used in the phase shifter at the present stage, and the strip line inside the cavity cannot be directly grounded, so that the strip line cannot prevent lightning. Therefore, how to directly and directly direct-current ground the strip line inside the electroless metal cavity of the phase shifter becomes a problem to be solved urgently.

Disclosure of Invention

The application provides a move looks ware and antenna, can realize the direct current ground connection of the inside stripline of non-electroplating metal cavity, reach the purpose that the stripline was struck by lightning.

In a first aspect, a phase shifter is provided, including: a cavity (110); a ribbon wire (130), the ribbon wire (130) disposed within the cavity (110); the phase shifter further includes a ground block (120), the ground block (120) being a solderable module, the ground block (120) being disposed on the cavity (110), the ground block (120) being electrically connected to the strip line (130).

The phase shifter provided in the embodiment of the application can realize the welded grounding block by adding the grounding block in the phase shifter, and the grounding block is arranged on the cavity, so that the whole formed by the grounding block and the cavity can be regarded as a cavity capable of realizing partial welding, wherein the grounding block is electrically connected with the strip line, thereby realizing direct current grounding of the strip line and achieving the purpose of lightning protection of the strip line.

The grounding block referred to in this application may be, for example, a metal module plated with a solderable outer layer.

For example, the surface of aluminum alloy is electroplated with metal such as tin and silver, so that the grounding block can be welded.

Illustratively, the grounding block referred to in this application may be a non-metallic module plated with a solderable outer layer.

For example, the outer surface of the plastic module is plated with metal such as tin and silver to realize the solderability of the grounding block.

Illustratively, the grounding block referred to in the present application may be a metal module capable of achieving electroplating.

For example, the grounding block is made of a solderable material such as tin, silver, etc.

It should be understood that the grounding block (120) is disposed on the cavity (110) in the present application, which means that the grounding block (120) is directly connected to the cavity (110), and is not coupled to the cavity.

For example, the grounding block (120) and the cavity (110) are directly connected by a screw connection, a riveting connection or a welding connection.

With reference to the first aspect, in certain implementations of the first aspect, the cavity (110) has a cavity wall and a cavity, the ground block (120) is embedded in the cavity wall, and a first through hole is provided in the ground block (120), and the phase shifter further includes: a short-circuit line (131) with the length of odd times of the working wavelength of the quarter phase shifter (the length of odd times of the working wavelength of the quarter phase shifter is simply called as the length of odd times of quarter wavelength), wherein the short-circuit line (131) is a coaxial cable with one short circuit end; the electrical connection of the ground block (120) to the strip line (130) comprises: the outer conductor of the short circuit line (131) is connected with the grounding block (120), and the inner conductor of the short circuit line (131) extends to the inside of the cavity (110) through the first through hole and is welded with the strip line (130).

According to the phase shifter provided by the embodiment of the application, the grounding block (120) is embedded in the cavity wall of the cavity (110), the first through hole is formed in the grounding block, so that the outer conductor of the coaxial cable with one short circuit end is welded with the grounding block (120), the inner conductor extends to the inside of the cavity (110) through the first through hole and is welded with the strip line (130), direct current grounding of the strip line (130) is achieved, the lightning protection purpose is achieved, the length of the coaxial cable with one short circuit end is odd times of quarter wavelength, and high-frequency signals can pass through the coaxial cable.

Illustratively, the grounding block (120) is embedded in the cavity wall of the cavity (110), the grounding block (120) is tightly connected with the cavity (110), and illustratively, the grounding block (120) and the cavity (110) are integrally formed, so that the grounding block (120) is directly electrically connected with the cavity (110). And the first through hole is arranged in the grounding block, so that the grounding block (120) can be seen as a hollow cylinder, and is pressed into the cavity wall of the cavity (110) in a press riveting mode to be directly connected with the cavity wall.

It is understood that the coaxial cable with a short-circuited end may be one in which the inner and outer conductors of the coaxial cable are soldered directly together at the end remote from the cavity (110).

With reference to the first aspect, in certain implementations of the first aspect, the phase shifter further includes: a first protrusion (121), the first protrusion (121) being disposed on the ground block (120); the electrical connection of the ground block (120) to the strip line (130) comprises: the strip line (130) is electrically connected to the first bump (121) via a short-circuit line (131) having a length of an odd multiple of a quarter wavelength.

The phase shifter provided by the embodiment of the application can facilitate the welding of the strip line (130) by arranging the first bump (121) on the grounding block (120) and welding the strip line (130) with the first bump (121) through the short-circuit line (131), and the length of the short-circuit line (131) is odd times of quarter wavelength, so that a high-frequency signal can pass through.

It is understood that the length of the first bump (121) is negligible, that is, the strip line (130) and the ground pad (120) are soldered together via a short-circuit line (131) having a length that is an odd multiple of a quarter wavelength. Or, the length of the first bump (121) is L, and the part with the length L in the short-circuit line (131) with the length of odd multiple of quarter wavelength is directly welded on the first bump (121) to ensure that the total length is odd multiple of quarter wavelength.

With reference to the first aspect, in certain implementations of the first aspect, the short-circuit line (131) is part of the ribbon line (130), the short-circuit line (131) being located inside the cavity (110); the first bulge (121) is positioned inside the cavity (110); the first protrusion (121) is welded to the short circuit line (131) inside the cavity (110).

In the phase shifter provided by the embodiment of the application, the short-circuit line (131) can be directly part of the strip line (130), namely the short-circuit line (131) extends from the strip line (130), wherein the first bump (121) and the short-circuit line (131) are both located inside the cavity (110) and are welded together inside the cavity (110), so that a flexible possibility is provided for the electrical connection between the strip line (130) and the first bump (121).

Illustratively, the short-circuit line (131) is a strip line having an end length of the strip line (130) of an odd multiple of a quarter wavelength.

With reference to the first aspect, in certain implementations of the first aspect, the cavity (110) has a cavity wall and a cavity, the first protrusion (121) is a portion protruding from the ground block (120) to an inside of the cavity (110), and the first protrusion (121) located inside the cavity (110) includes: the grounding block (120) is arranged on the outer surface of the cavity wall, a second through hole is formed in the cavity wall of the cavity (110), and the first protrusion (121) penetrates through the second through hole and is located inside the cavity (110); alternatively, a ground block (120) is disposed on an inner surface of the cavity wall; alternatively, a ground block (120) is embedded in the cavity wall.

The phase shifter provided in the embodiment of the application ensures that the first protrusion (121) can be located inside the cavity (110) by setting the position of the grounding block (120), and includes various schemes.

Illustratively, the ground block (120) may be disposed on the cavity wall outer surface of the cavity (110), but a second through hole is disposed in the cavity wall, and since the first protrusion (121) is a portion protruding from the ground block (120) toward the inside of the cavity (110), when the ground block (120) is disposed on the cavity wall outer surface of the cavity (110), the first protrusion (121) is located inside the cavity (110) through the second through hole.

Exemplarily, a first notch is arranged on the cavity wall of the cavity (110), the grounding block (120) passes through the first notch and is positioned inside the cavity (110) and is arranged on the inner surface of the cavity wall of the cavity (110), the area of the first notch is smaller than that of the grounding block (120), and the grounding block (120) seals the first notch. Since the first protrusion (121) is a portion protruding from the ground block (120) toward the inside of the cavity (110), when the ground block (120) is located inside the cavity (110), the first protrusion (121) is also located inside the cavity (110).

Exemplarily, a second notch is arranged on the cavity wall of the cavity (110), the area of the second notch is equal to the area of the grounding block (120), the grounding block (120) is arranged at the second notch, and the grounding block (120) is embedded in the cavity wall. Since the first protrusion (121) is a portion protruding from the ground block (120) toward the inside of the cavity (110), when the ground block (120) is located in the cavity wall of the cavity (110), the first protrusion (121) protrudes toward the inside of the cavity (110), and then the first protrusion (121) is located inside the cavity (110).

With reference to the first aspect, in certain implementations of the first aspect, the short-circuit line (131) is integrated on a printed circuit board PCB (150), the PCB (150) is located outside the cavity (110), a third through hole is formed in a cavity wall of the cavity (110), a fourth through hole corresponding to the third through hole is formed in the PCB (150), one end of the first connection line (132) is connected to the strip line (130), and the other end of the first connection line (132) sequentially penetrates through the third through hole and the fourth through hole and is welded to the PCB (150); wherein a first end of the short-circuit line (131) is welded to the first protrusion (121), and a second end of the short-circuit line (131) is welded to the other end of the first connection line (132).

The phase shifter provided in the embodiment of the present application connects the first bump (121) and the strip line (130) together by providing a short-circuiting line (131) on the PCB (150). The PCB (150) is located outside the cavity (110), in order to enable the strip line (130) to be connected with a short circuit line (131) arranged on the PCB (150), one end of the first connecting line (132) is connected with the strip line (130), the other end of the first connecting line (132) penetrates through a third through hole formed in the cavity wall of the cavity (110) and a fourth through hole corresponding to the third through hole and arranged in the PCB (150) in sequence and then is welded on the PCB (150), namely, the first end of the short circuit line (131) is welded with the first bulge (121), and the second end of the short circuit line (131) is welded with the other end of the first connecting line (132) to achieve the connection of the first bulge (121) and the strip line (130).

With reference to the first aspect, in certain implementations of the first aspect, the PCB (150) is the ground block (120); or, the ground block (120) is embedded in the extending wall body of the cavity wall, the PCB (150) is located above the ground block (120), the first protrusion (121) is a portion protruding from the ground block (120) to the PCB (150), and the soldering of the first end of the short-circuit line (131) and the first protrusion (121) together includes: the PCB (150) is provided with a fifth through hole, the first bump (121) penetrates through the fifth through hole to be welded on the PCB (150), and the first end of a short circuit line (131) integrated on the PCB (150) is welded with the first bump (121).

Illustratively, the PCB (150) is the grounding block (120) shown in the foregoing, that is, the first protrusion (121) is disposed on the PCB (150), and the first end of the short-circuit line (131) integrated on the PCB (150) can be soldered to the first protrusion (121) on the PCB (150).

Illustratively, the PCB (150) is another module in the phase shifter, wherein the ground block (120) is disposed on an outer surface of the cavity wall or an extended wall of the cavity wall, and the PCB (150) is disposed above the ground block (120), in order to enable the first bump (121) to be soldered with the short-circuit line (131) integrated on the PCB (150), the first bump (121) is a portion protruding from the ground block (120) toward the PCB (150), and the first bump (121) is soldered on the PCB (150) through a fifth through hole provided in the PCB (150), so that the first end of the short-circuit line (131) integrated on the PCB (150) can be soldered with the first bump (121) soldered on the PCB (150).

With reference to the first aspect, in certain implementations of the first aspect, the first connection line (132) is a strip line extending from the strip line (130).

In the phase shifter provided in the embodiment of the present application, the first connection line (132) may be directly a strip line extending from the strip line (130), and a connection line is not required to be additionally provided, so that connection stability between the portions can be improved.

With reference to the first aspect, in certain implementations of the first aspect, the ground block (120) is integrally formed with the first protrusion (121).

According to the phase shifter provided by the embodiment of the application, the grounding block (120) and the first protrusion (121) can be integrally formed during casting, the grounding block (120) and the first protrusion (121) do not need to be connected through a connecting technology such as welding, and the connecting stability between the parts can be improved.

With reference to the first aspect, in certain implementations of the first aspect, the ground block (120) is electrically connected with an outer conductor (141) of a cable (140), wherein an inner conductor (142) of the cable (140) is connected with the strip line (130), the cable (140) being configured to transmit signals from outside the cavity (110) to inside the cavity (110).

According to the phase shifter provided by the embodiment of the application, the grounding block (120) can be electrically connected with the outer conductor (141) of the cable (140) outside the phase shifter, so that the outer conductor (141) of the cable (140) is directly grounded in a direct current mode. The inner conductor (142) of the cable (140) is connected with the strip line (130) to realize signal transmission.

With reference to the first aspect, in certain implementations of the first aspect, the cavity (110) has a cavity wall and the cavity ground block (120) is embedded in the cavity wall, and a sixth through hole is provided in the ground block (120), and the connecting the inner conductor (142) with the strip line (130) includes: the inner conductor (142) passes through the sixth through hole and extends to the inside of the cavity (110) to be welded with the strip line (130).

The phase shifter provided in the embodiment of the application realizes signal transmission by embedding the grounding block (120) in the cavity wall of the cavity (110) and arranging the sixth through hole in the grounding block, so that the inner conductor (142) of the cable (140) extends to the inside of the cavity (110) through the sixth through hole and is welded with the strip line (130).

Illustratively, the grounding block (120) is embedded in the cavity wall of the cavity (110), and the sixth through hole is arranged in the grounding block, so that the grounding block (120) can be regarded as a hollow cylinder and is pressed into the cavity wall of the cavity (110) by means of riveting to be directly connected with the cavity wall.

Illustratively, the ground block (120) may be in two parts, i.e. the ground block is in two hollow cylinders, one part provided with the first through hole and the other part provided with the sixth through hole.

With reference to the first aspect, in certain implementations of the first aspect, the phase shifter further includes: a second protrusion (122), the second protrusion (122) being disposed on the ground block (120); the ground block (120) is electrically connected with the outer conductor (141) of the cable (140) and comprises: the outer conductor (141) of the cable (140) is electrically connected to the second projection (122).

In the phase shifter provided in the embodiment of the application, in order to facilitate the connection of the outer conductor (141) of the cable (140) and the ground block (120), the second protrusion (122) is arranged on the ground block (120), and the outer conductor (141) is electrically connected with the second protrusion (122).

With reference to the first aspect, in certain implementations of the first aspect, the second protrusion (122) is a portion protruding from the ground block (120) to the outside of the cavity (110); the connection of the inner conductor (142) of the cable (140) to the strip line (130) comprises: if the grounding block (120) is arranged on the inner surface of the cavity wall; or the grounding block (120) is embedded in the wall of the cavity, a seventh through hole is formed in the second protrusion (122), an eighth through hole corresponding to the seventh through hole is formed in the grounding block (120), and the inner conductor (142) of the cable (140) sequentially penetrates through the seventh through hole and the eighth through hole to extend into the cavity (110) and is welded with the strip line (130) to realize signal transmission; if the grounding block (120) is arranged on the outer surface of the cavity wall, a ninth through hole corresponding to the eighth through hole is formed in the cavity wall of the cavity (110), and the inner conductor (142) sequentially penetrates through the seventh through hole, the eighth through hole and the ninth through hole to extend into the cavity (110) and is welded with the strip line (130), so that signal transmission is realized.

Exemplarily, a first notch is arranged on the cavity wall of the cavity (110), the grounding block (120) passes through the first notch and is positioned inside the cavity (110) and is arranged on the inner surface of the cavity wall of the cavity (110), the area of the first notch is smaller than that of the grounding block (120), and the grounding block (120) seals the first notch. Because the second bulge (122) is a part which protrudes from the grounding block (120) to the outside of the cavity (110), when the grounding block (120) is positioned in the cavity (110), only a seventh through hole is arranged in the second bulge (122) and an eighth through hole corresponding to the seventh through hole is arranged on the grounding block (120), and the inner conductor (142) sequentially passes through the seventh through hole and the eighth through hole, namely, is positioned in the cavity (110), and can be welded with the strip line (130), so that signal transmission is realized.

Exemplarily, a second notch is arranged on the cavity wall of the cavity (110), the area of the second notch is equal to the area of the grounding block (120), the grounding block (120) is arranged at the second notch, and the grounding block (120) is embedded in the cavity wall. Because the second bulge (122) is a part protruding from the grounding block (120) to the outside of the cavity (110), when the grounding block (120) is positioned in the cavity wall of the cavity (110), only a seventh through hole needs to be arranged in the second bulge (122) and an eighth through hole corresponding to the seventh through hole needs to be arranged on the grounding block (120), and the inner conductor (142) sequentially penetrates through the seventh through hole and the eighth through hole, namely, is arranged in the cavity (110), and can be welded with the strip line (130), so that signal transmission is realized.

Illustratively, the grounding block (120) can be arranged on the outer surface of the cavity wall of the cavity (110), but a ninth through hole is required to be arranged in the cavity wall, and the inner conductor (142) sequentially passes through the seventh through hole, the eighth through hole and the ninth through hole to extend to the inside of the cavity (110) to be welded with the strip line (130) so as to realize signal transmission.

In the phase shifter provided in the embodiment of the application, in order to realize signal transmission, when no cavity wall exists between the grounding block (120) and the inside of the cavity (110), a seventh through hole is provided in the second protrusion (122), an eighth through hole is provided in the grounding block (120) at a position corresponding to the seventh through hole, and the inner conductor (142) of the cable (140) is welded with the strip line (130) through the seventh through hole and the eighth through hole in sequence; when a cavity wall exists between the grounding block (120) and the interior of the cavity (110), a ninth through hole through which the inner conductor (142) can pass needs to be arranged in the cavity wall, and various flexible welding schemes for connecting the inner conductor (142) and the strip line (130) are provided based on the arrangement position of the grounding block (120).

With reference to the first aspect, in certain implementations of the first aspect, connecting the inner conductor (142) of the cable (140) with the ribbon wire (130) includes: the inner conductor (142) of the cable (140) is connected with the strip line (130) through a second connecting line (151), wherein the second connecting line (151) is integrated on a Printed Circuit Board (PCB) (150), the PCB (150) is positioned outside the cavity (110), a third through hole is formed in the cavity wall of the cavity (110), a fourth through hole corresponding to the third through hole is formed in the PCB (150), one end of the first connecting line (132) is welded with the strip line (130), and the other end of the first connecting line (132) sequentially penetrates through the third through hole and the fourth through hole to be welded on the PCB (150); wherein a first end of the second connection line (151) is welded to the inner conductor (142), and a second end of the second connection line (151) is welded to the other end of the first connection line (132).

The phase shifter provided in the embodiment of the present application connects the inner conductor (142) and the strip line (130) together by providing the second connection line (151) on the PCB (150). The PCB (150) is located outside the cavity (110), in order to enable the strip line (130) to be connected with a second connecting line (151) arranged on the PCB (150), one end of the first connecting line (132) is connected with the strip line (130), the other end of the first connecting line (132) penetrates through a third through hole formed in the cavity wall of the cavity (110) and a fourth through hole corresponding to the third through hole and arranged in the PCB (150) in sequence and then is welded on the PCB (150), namely, the first end of the second connecting line (151) is welded with the inner conductor (142), and the second end of the short second connecting line (151) is welded with the other end of the first connecting line (132) to achieve the connection of the inner conductor (142) and the strip line (130).

With reference to the first aspect, in certain implementations of the first aspect, the PCB (150) is a ground block (120); alternatively, the ground block (120) is embedded in the extending wall of the cavity wall, the PCB (150) is located above the ground block (120), the second protrusion (122) is a portion protruding from the ground block (120) opposite to the PCB (150), and the soldering together of the first end of the second connection line (151) and the inner conductor (142) comprises: the PCB (150) is provided with a tenth through hole, the inner conductor (142) sequentially penetrates through the seventh through hole, the eighth through hole and the tenth through hole to be welded on the PCB (150), and the first end of the second connecting wire (151) integrated on the PCB (150) is welded with the inner conductor (142) welded on the PCB (150).

Illustratively, the PCB (150) is the grounding block (120) shown in the foregoing, that is, the inner conductor (142) is soldered on the PCB (150) through the seventh through hole and the eighth through hole, and the first end of the second connection line (151) integrated on the PCB (150) can be soldered with the inner conductor (142) soldered on the PCB (150).

Illustratively, the PCB (150) is another module in the phase shifter, wherein the ground block (120) is embedded in the extending wall of the cavity wall, and the PCB (150) is located above the ground block (120), in order to enable the inner conductor (142) to be soldered with the second connecting line (151) integrated on the PCB (150), the inner conductor (142) is soldered on the PCB (150) sequentially through the seventh through hole, the eighth through hole and the tenth through hole provided on the PCB (150), so that the first end of the second connecting line (151) integrated on the PCB (150) can be soldered with the inner conductor (142) soldered on the PCB (150).

With reference to the first aspect, in certain implementations of the first aspect, the ground block (120) and the second protrusion (122) are integrally formed, wherein the seventh through hole and the eighth through hole are one through hole.

According to the phase shifter provided by the embodiment of the application, the grounding block (120) and the second protrusion (122) can be integrally formed during casting, the grounding block (120) and the second protrusion (122) do not need to be connected through a connecting technology such as welding, and the connecting stability between the parts can be improved.

In a second aspect, there is provided an antenna comprising an antenna element for radiating a beam of electromagnetic waves; and the phase shifter of any one of the first aspect connected to an antenna element, the phase shifter for adjusting an angle of an electromagnetic beam radiated by the antenna element.

The phase shifter and the antenna provided by the embodiment of the application have the advantages that the weldable grounding block (120) is additionally arranged, the grounding block (120) is directly and electrically connected with the strip line (130), the direct current grounding of the strip line (130) is realized, and the purpose of lightning protection of the strip line is achieved.

Drawings

Fig. 1 is a schematic view of a phase shifter.

Fig. 2 is a schematic view of another phase shifter.

Fig. 3(a) - (c) are schematic diagrams of phase shifters provided in the present application.

Fig. 4 is a schematic view of an electroless metal cavity (110) according to an embodiment of the present disclosure.

Fig. 5 is a schematic view of a ground pad (120) and a first bump (121) provided in an embodiment of the present application.

Fig. 6(a) - (d) are schematic diagrams illustrating the grounding block (120) provided in the embodiment of the present application disposed on the outer surface of the cavity wall of the cavity (110).

Fig. 7(a) - (d) are schematic diagrams illustrating the grounding block (120) provided in the embodiment of the present application disposed on the inner surface of the cavity wall of the cavity (110).

Fig. 8(a) and (b) are schematic diagrams of the ground block (120) provided in the embodiment of the present application being embedded in the cavity wall of the cavity (110).

Fig. 9 is a schematic diagram of the ground block (120) provided in the embodiment of the present application disposed on the extending wall of the cavity (110).

Fig. 10(a) - (i) are schematic diagrams of the stripline provided in the embodiment of the present application directly connected to dc.

Fig. 11 is a schematic diagram of another phase shifter provided in an embodiment of the present application.

Fig. 12 (a) and (b) are schematic views showing that the ground pad (120) is provided with a projection in the present application.

Fig. 13(a) - (h) are schematic diagrams illustrating connection between the inner conductor (142) and the strip line (130) according to the embodiment of the present application.

Fig. 14 is a schematic diagram of the second protrusion (122) provided in the embodiment of the present application disposed on the ground pad (120).

Fig. 15(a) and (b) are schematic views of a specific phase shifter provided in the present application.

Fig. 16 is a schematic diagram of a phase shifter according to an embodiment of the present disclosure.

Fig. 17 is a schematic diagram of a specific phase shifter provided in the present application.

Fig. 18 is a schematic structural diagram of an antenna according to an embodiment of the present application.

Fig. 19 is a schematic structural diagram of a base station according to an embodiment of the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

Fig. 1 is a schematic view of a phase shifter. The schematic diagram includes a plated metal chamber (10), a coaxial cable (20), a terminal short-circuit line (21) of the coaxial cable (20), and a strip line (30).

The electroplated metal cavity (10) can be an aluminum die-casting cavity or an aluminum alloy material which is manufactured through an extrusion process. Because the cavity of the phase shifter needs to be electroplated, an aluminum alloy material needs to be electroplated, and the electroplating cost and the process time are further increased.

A coaxial cable (20) includes an outer conductor and an inner conductor. Is a cable for transmitting signals, and is used for transmitting signals from the outside of the metal plating cavity (10) to a strip line (30) signal inlet inside the metal plating cavity (10). In particular, it can be seen from fig. 1 that the end of the coaxial cable (20) in the phase shifter is short-circuited in order to achieve dc grounding. I.e. including the end short-circuit line (21) shown in fig. 1.

The strip line (30) is a signal transmission strip line and is used for transmitting signals transmitted into the electroplating metal cavity (10) by the coaxial cable (20) and realizing the function of signal phase shifting. That is, a signal is transmitted from a signal inlet of the strip line (30) into the strip line (30), and after being transmitted by the strip line (30), the signal is outputted from a signal outlet of the strip line (30), a phase-shifted signal is obtained.

Specifically, it can be seen from fig. 1 that the inner conductor of the coaxial cable (20) is welded with the strip line (30) to realize signal transmission; the outer conductor of the coaxial cable (20) is soldered with the plated metal cavity (10). As the cavity (10) is an electroplating cavity, the direct current grounding of the electroplating metal cavity (10), the outer conductor of the coaxial cable (20) and the strip line (30) can be realized, and the strip line in the phase shifter can be protected against lightning.

The phase shifter shown in fig. 1 is provided with the plated metal cavity (10), the outer conductor of the coaxial cable (20) and the strip line (30) which are grounded in a direct current manner, and the plated metal cavity is adopted as the cavity (10), so that the cost for producing the phase shifter is increased.

In order to realize the direct current grounding of the electroless metal cavities in the phase shifter and the strip lines in the electroless metal cavities, a direct current grounding method is provided and applied to the phase shifter comprising the electroless metal cavities, and the structure of the phase shifter comprising the electroless metal cavities is shown in fig. 2.

Fig. 2 is a schematic view of another phase shifter. The schematic diagram includes an electroless metal cavity (40), a Printed Circuit Board (PCB) (50), a coaxial cable (60), a short-circuited end connection line (51) etched on the PCB (50), and a strip line (41) located inside the cavity.

Wherein the electroless metal cavities (40) do not require electroplating as compared to the electroplated metal cavities (10) described in fig. 1. The cost of producing the phase shifter is reduced.

The PCB (50) is positioned inside the non-electroplating metal cavity (40), and the PCB (50) is coupled and connected with the non-electroplating metal cavity (40) in an indirect way.

After the coaxial cable (60) passes through the outer wall of the non-electroplating metal cavity (40), the outer conductor of the coaxial cable (60) is welded on the PCB (50), and the inner conductor of the coaxial cable (60) is connected with the strip line (41) to realize signal transmission.

The strip line (41) inside the cavity is partly in fig. 2 the strip line (41) below the PCB (50), not directly shown. The strip line (41) in the cavity is welded with the connecting line (51) with the short circuit at the tail end, so that the grounding of the strip line (41) is realized.

The short-ended connecting wire (51) is used in fig. 2 to achieve direct current grounding of the electroless metal cavity (40) and the strip line (41) inside the cavity.

In the phase shifter shown in fig. 2, since the PCB (50) is coupled with the non-plated metal cavity (40), the PCB is not directly connected with the non-plated metal cavity, and the electrical consistency is poor; furthermore, the coaxial cable (60) and the strip line (41) are not directly connected to direct current, so that the strip line (41) cannot prevent lightning. It is difficult to mass-produce the phase shifter.

In order to solve the problem that phase shifter direct current ground exists among the prior art, this application provides a phase shifter. Direct electrical connection among modules of the phase shifter can be achieved for the non-electroplating cavity, direct current grounding of the strip line inside the non-electroplating cavity and the non-electroplating cavity is achieved, and the purpose of lightning protection of the strip line is achieved.

Further, the phase shifter that this application provided can also realize that the cavity outside is used for the outer conductor direct current ground of the cable of transmission signal for move the phase shifter steady operation.

First, to facilitate an understanding of the embodiments provided herein, a brief description will be given of several basic concepts involved in the embodiments of the present application.

1. A phase shifter.

A phase shifter (phaser) is a device that can adjust the phase of a wave. Any transmission medium introduces a phase shift to the fluctuations conducted in it, which is the principle of early analog phase shifters; after the modern electronic technology is developed, digital phase shifting is realized by analog-to-digital (A/D) conversion and digital-to-analog (D/A) conversion, and as the name suggests, the digital phase shifting technology is a discontinuous phase shifting technology but has the characteristic of high phase shifting precision.

The phase shifter has wide application in the fields of radar, missile attitude control, accelerators, communication, instruments and even music and the like.

2. And (6) electrically connecting.

It may also be referred to as an electrical connection, which broadly refers to a collection of all electrical circuits in an electrical product, including power connection components such as power plugs, power terminals, etc., power cords, internal wires, internal connection components, etc.; electrical connections in the narrow sense are intended to refer to all ways of connecting different conductors within a product. The key role of the electrical connection component is to provide a reliable connection and avoid the danger of poor contact between different conductors.

The connection mode mainly involved in realizing direct electrical connection in the embodiment of the present application includes:

1) and (6) welding.

A process and technique for joining metals or other thermoplastic materials, such as plastics, by heat, at high temperature or pressure. The welding modes are various, wherein the friction stir welding refers to that the welded material is locally plasticized by heat generated by friction between a welding tool rotating at a high speed and a workpiece, and when the welding tool moves forwards along a welding interface, the plasticized material flows from the front part to the rear part of the welding tool under the action of the rotating friction force of the welding tool and forms a compact solid-phase welding seam under the extrusion of the welding tool.

It should be understood that the welding referred to in this application may be any of the welding techniques well established in the art, such as spot welding, resistance welding, friction stir welding, and the like. Friction stir welding, however, may be selected to improve the stability of the phase shifter, and the modules to be welded are welded together.

2) And (4) connecting with a screw.

The screw connection is realized by using a screw to pass through a through hole of one machine member and be screwed in a screw hole of the other machine member so as to connect the two machine members;

or the screw is combined with the nut, passes through the through holes of the two machine parts and is connected with the two machine parts in a locking way.

It should be understood that the screw connections referred to in this application may be simply screws that tighten together two modules to be directly electrically connected; it is also possible to screw together two modules to be directly electrically connected by means of the cooperation of screws and nuts. To improve the reliability of the connection, a screw and nut fit is generally chosen.

3) And (6) riveting.

The rivet connection is a method for connecting a plurality of parts by upsetting a rivet rod in a rivet hole of the part and forming a rivet head by using axial force.

It should be understood that there are many ways of riveting, and any of the ways of riveting in the prior art may be used in this application when riveting two modules.

It should also be understood that reference to direct electrical connection in this application means that the two components are in direct contact or directly connected by a wire to achieve a stable electrical connection.

3. A strip line.

Which may also be referred to as a strip line. Specifically, the strip lines are filled with a medium, and the phase shift function can be realized by adjusting the position of the medium. Strip lines are an important component of telecommunication systems for carrying information-carrying electromagnetic waves from one point to another along a route defined by a transmission line. A wave guiding structure for transmitting electrical energy and/or signals in Transverse Electromagnetic (TEM) modes.

Characterized by a lateral dimension much smaller than the operating wavelength. The main structural types are parallel double-conductor, parallel multi-conductor, coaxial line, strip line, micro strip line working in a quasi-TEM mode and the like, and the main structural types can be used for circuit analysis by means of a simple double-conductor model.

4. A cable.

Cable is a generic term for optical cables, electrical cables, and the like. The cable has many uses, and is mainly used for controlling installation, connecting equipment, transmitting power and the like. The cable referred to in the embodiments of the present application is mainly a cable for signal transmission, and includes an outer conductor and an inner conductor.

5. A quarter wavelength.

When the pure resistance load is connected with the characteristic impedance transmission line, if the pure resistance load is not equal to the characteristic impedance, a reflected wave can be generated on the transmission line, the transmission line is in a mismatch state, and at the moment, a matching line with the length being odd times of a quarter wavelength is additionally arranged between the transmission line and the load resistance, so that matching between the transmission line and the load can be realized. The circuit device is a quarter-wave transformer.

Where the wavelength is calculated and the wavelength multiplied by the frequency is equal to the speed of light. It is known that frequency-wavelength determination is a radio wave whose wavelength is 10 meters and whose wavelength is 1/4 meters, divided by the frequency, e.g., 30M frequency, by the speed of light.

Having briefly described several basic concepts involved in the present application, a phase shifter provided by an embodiment of the present application is described in detail below with reference to fig. 3-13.

Fig. 3 is a schematic diagram of a phase shifter provided in the present application. The schematic diagram includes a cavity (110), a ground block (120), and a strip line (130) for signal transmission, and the connection state and function between these three parts are described in detail below.

A chamber (110) having a chamber wall and a chamber enclosed by the chamber wall. Wherein, the cavity wall of the cavity (110) is a wall body with thickness.

Illustratively, the cavity (110) is an electroless metal cavity. For example, the cavity (110) is an electroless aluminum alloy cavity.

It should be understood that the present application does not limit the cavity (110) to be an electroless metal cavity, and in an electroplating metal cavity, the strip line (130) in the cavity of the phase shifter can be grounded through the grounding block (120) provided in the present application, regardless of the complicated structure. However, the phase shifter in the present application is mainly proposed for the electroless metal cavity of the phase shifter, because the phase shifter of the electroplating cavity can adopt the mode shown in the foregoing fig. 1 when the internal strip line grounding is realized.

In the following embodiments, the cavity (110) is used as an electroless metal cavity (110).

And a strip line (130) located inside the cavity (110) for signal transmission.

It should be noted that the greatest difference between the phase shifter provided in the present application and the phase shifter shown in fig. 2 is the inclusion of a solderable grounding block (120), and the specific structure and use of the grounding block (120) will be described in detail below.

The solderable grounding block (120) is illustratively a metal or non-metal module having a surface plated with a solderable substance such as tin or silver; alternatively, the grounding block (120) is made of a solderable substance.

Illustratively, as shown in fig. 3(a), the ground block (120) is a solderable horizontal block module, and specifically, the ground block (120) is disposed on the cavity (110) and is in close contact with the cavity (110). And the ground block (120) is electrically connected to the strip line (130).

Illustratively, as shown in fig. 3(b), the grounding block (120) is a weldable screw, wherein the screw is tightly connected with the cavity (110), and a direct electrical connection between the screw and the cavity (110) is realized. And the screw includes an electrically solderable portion thereon, the ribbon wire (130) being in direct electrical connection with the solderable portion of the screw.

Illustratively, as shown in fig. 3(c), the grounding block (120) may also be a hollow cylinder, wherein the cylinder may be a rivet, the rivet is pressed into the cavity wall of the cavity (110), the rivet is tightly connected with the cavity (110), and a direct electrical connection between the rivet and the cavity (110) is realized. And an electrically solderable portion is included on the rivet, the ribbon wire (130) being in direct electrical connection with the solderable portion on the rivet.

It should be understood that fig. 3 is only an illustration and is not intended to limit the scope of the present application, and the grounding block (120) may be other solderable modules, which are not listed here. Firstly, the cavity (110) needs to be grounded with the grounding block (120) to realize signal common grounding, so that the grounding block (120) and the cavity (110) are directly and electrically connected;

secondly, the strip line (130) used for signal phase shift inside the cavity (110) is also kept lightning proof, so that the grounding block (120) and the strip line (130) are kept directly and electrically connected.

In conclusion, the direct current grounding of the strip line (130) is realized on the premise that the direct electrical connection is maintained in each part, and the purpose of lightning protection is achieved.

Exemplarily, as shown in fig. 4, fig. 4 is a schematic view of an electroless metal cavity (110) provided in an embodiment of the present application. The electroless metal cavities (110) may be rectangular parallelepiped shaped electroless metal cavities. The chamber walls include 6 walls of different orientations, in this embodiment the walls (70) are referred to as the top surface walls of the electroless metal chamber (110), the surfaces parallel to the walls (70) are the bottom surface walls of the electroless metal chamber (110), and the 4 walls perpendicular to the walls (70) are referred to as the sidewalls of the electroless metal chamber (110).

It should be understood that fig. 4 is a schematic illustration only and should not be construed to limit the present disclosure in any way. For example, the specific shape of the electroless metal cavity (110) is not limited in the present application, and may be other shapes than the rectangular parallelepiped shape shown in fig. 4.

It will also be understood that the cavity wall comprises an inner surface facing the cavity and an outer surface facing the exterior of the cavity.

Illustratively, the strip line (130) may be soldered directly to the ground block (120) without regard to ease of connection.

Illustratively, to facilitate direct electrical connection between the ground block (120) and the striplines (130), the phase shifter provided herein further comprises:

and the first bump (121), the first bump (121) is arranged on the grounding block (120) and is weldable, and the first bump is directly connected with the grounding block (120).

For example, as shown in fig. 5, fig. 5 is a schematic view of the ground pad (120) and the first protrusion (121) provided in the embodiment of the present application. As can be seen from fig. 5, the first protrusion (121) and the ground block (120) may be directly electrically connected together by welding, screwing, riveting or the like, or the first protrusion (121) and the ground block (120) may be integrally formed in the process.

It should be understood that fig. 5 is only an exemplary view and does not constitute any limitation to the present application. The specific shapes of the first protrusion (121) and the ground block (120) are not limited in the present application, and may be other shapes than the shapes shown in fig. 5, and the present application only limits the connection manner between the respective components.

Illustratively, the grounding block (120) is disposed on the cavity (110) and is in direct electrical connection with the cavity (110) including the following cases:

the first condition is as follows:

the ground block (120) is a horizontal block of solderable modules as shown in fig. 3(a), all or part of the first face of the ground block (120) remaining in direct electrical connection with the exterior surface of the cavity wall or extended walls of the cavity wall of the cavity (110). Wherein the first surface is any surface of the grounding block (120).

Several possible implementations of the grounding block (120) disposed on the outer surface of the cavity wall of the cavity (110) are described in detail below with reference to fig. 6. Fig. 6 is a schematic diagram of the ground pad (120) provided in the embodiment of the present application disposed on the outer surface of the cavity wall of the cavity (110).

In the first mode, the grounding block (120) is directly and electrically connected with the outer surface of the cavity wall of the cavity (110) through welding. As shown in fig. 6 (a).

As can be seen in fig. 6(a), the ground block (120) is a horizontal block-shaped solderable module and includes an upper surface (80), a lower surface parallel to the upper surface, and four sides perpendicular to the upper surface. Wherein the lower surface of the horizontal block-shaped grounding block (120) is electrically connected with the outer surface of the outer wall through welding. Specifically, the welding may be spot welding, resistance welding, or the like.

It should be understood that fig. 6(a) is only an example, and it is also possible that other surfaces (e.g., side or upper surfaces) of the ground block (120) and the outer surface of the cavity wall of the cavity (110) are directly electrically connected by soldering.

In the second mode, the grounding block (120) is directly and electrically connected with the outer surface of the cavity wall of the cavity (110) through screw connection. As shown in fig. 6 (b).

As can be seen from fig. 6(b), two through holes are formed in the ground block (120), locking holes aligned with the two through holes are formed in the wall of the cavity (110), and a screw passes through the through hole and the locking holes and then is locked with a nut. Thereby completing a direct electrical connection between the ground block (120) and the outer surface of the cavity wall of the cavity (110).

It should be understood that fig. 6(b) is only a schematic diagram of the direct electrical connection between the ground block (120) and the outer surface of the cavity wall of the cavity (110) by the screw and the nut, and does not limit the protection scope of the present application. In the embodiment of the present application, the number and the positions of the through holes are not limited, and only screws are used to screw the ground block (120) and the cavity (110) without nuts under the premise of sacrificing some connection reliability.

And in the third mode, the grounding block (120) is directly and electrically connected with the outer surface of the cavity wall of the cavity (110) through riveting. As shown in fig. 6 (c).

As can be seen from fig. 6(c), two shaft holes are formed in the ground block (120), shaft holes aligned with the two shaft holes are formed in the wall of the cavity (110), and the post portion of the male rivet passes through the shaft hole in the hollow post portion of the female rivet and is riveted with the female rivet. Thereby completing a direct electrical connection between the ground block (120) and the cavity (110).

It should be understood that fig. 6(c) is only a schematic illustration of riveting the ground block (120) and the cavity (110) by snap rivet riveting, and does not limit the scope of the present application. In the embodiment of the present application, the number and the position of the shaft holes are not limited, and the shaft holes may be connected based on other riveting methods, for example, press riveting.

Further, when the ground block (120) is electrically connected with the outer surface of the cavity wall of the cavity (110) and is not connected through other connecting devices (for example, when a PCB is connected), a second through hole corresponding to the first protrusion (121) needs to be arranged on the cavity wall of the cavity (110), so that the first protrusion (121) can extend into the cavity (110) through the second through hole to be electrically connected with the strip line (130). As shown in fig. 6 (d).

As can be seen from fig. 6(d), the ground block (120) is directly electrically connected to the outer surface of the cavity wall of the cavity (110), a second through hole is formed in the cavity wall of the cavity (110), and a first protrusion (121) which is formed on the ground block (120) and protrudes from the ground block (120) to the inside of the cavity (110) extends to the inside of the cavity (110) through the second through hole.

Case two:

the grounding block (120) is arranged on the inner surface of the cavity wall of the cavity (110), a first notch is formed in the cavity wall of the cavity (110), the grounding block (120) is located inside the cavity (110) through the first notch, and all or part of the first surface of the grounding block (120) is in direct electrical connection with the inner surface of the cavity wall of the cavity (110) and seals the first notch. Wherein the first surface is any surface of the grounding block (120).

It is understood that the ground block (120) may be located inside the cavity (110) via the first gap and seal the first gap. It may be that the area of the ground pad (120) is larger than the area of the first notch, but the length of the short side of the ground pad (120) is smaller than the length of the long side of the first notch.

Several possible implementations of the grounding block (120) arranged on the inner surface of the cavity wall of the cavity (110) are described in detail below with reference to fig. 7. Fig. 7 is a schematic diagram of the ground block (120) provided in the embodiment of the present application disposed on the inner surface of the cavity wall of the cavity (110).

In the first mode, the grounding block (120) is directly and electrically connected with the inner surface of the cavity wall of the cavity (110) through welding. As shown in fig. 7 (a).

As can be seen in fig. 7(a), the horizontal block-shaped solderable grounding block (120) includes an upper surface (80), a lower surface parallel to the upper surface, and four side surfaces perpendicular to the upper surface. Wherein a portion of the upper surface of the horizontal block ground block (120) is maintained in direct electrical connection with the inner surface of the chamber wall by soldering. Specifically, the welding may be spot welding, resistance welding, or the like.

In the second mode, the grounding block (120) is directly and electrically connected with the inner surface of the cavity wall of the cavity (110) through screw connection. As shown in fig. 7 (b).

As can be seen from fig. 7(b), two through holes are formed in the ground block (120), locking holes aligned with the two through holes are formed in the wall of the cavity (110), and a screw passes through the through hole and the locking holes and then is locked with a nut. Thereby completing a direct electrical connection between the ground block (120) and the outer surface of the cavity wall of the cavity (110).

And in the third mode, the grounding block (120) is directly and electrically connected with the inner surface of the cavity wall of the cavity (110) through riveting. As shown in fig. 7 (c).

As can be seen from fig. 7(c), two shaft holes are formed in the ground block (120), shaft holes aligned with the two shaft holes are formed in the wall of the cavity (110), and the post portion of the male rivet passes through the shaft hole in the hollow post portion of the female rivet and is riveted with the female rivet. Thereby completing a direct electrical connection between the ground block (120) and the cavity (110).

Further, when the ground block (120) is directly electrically connected with the inner surface of the cavity wall of the cavity (110), the first protrusion (121) arranged on the ground block (120) can be directly positioned inside the cavity (110) to be electrically connected with the strip line (130). As shown in fig. 7 (d).

As can be seen from fig. 7(d), the ground block (120) is directly electrically connected to the inner surface of the wall of the cavity (110), and the first protrusion (121) provided on the ground block (120) and protruding from the ground block (120) toward the inside of the cavity (110) is located inside the cavity (110).

Case three:

the grounding block (120) is embedded into the cavity wall, a second notch with the size identical to that of the grounding block (120) is formed in the cavity wall of the cavity (110) or the extending wall body of the cavity wall, the grounding block (120) is arranged at the second notch, and the side face of the grounding block (120) is in direct electrical connection with the surface of the second notch.

The following describes in detail a possible implementation of the grounding block (120) embedded in the cavity wall of the cavity (110) with reference to fig. 8. Fig. 8 is a schematic diagram of the ground block (120) embedded in the cavity wall of the cavity (110) according to the embodiment of the present application.

The grounding block (120) is directly and electrically connected with a second notch arranged on the cavity wall of the cavity (110) through welding. As shown in fig. 8 (a).

As can be seen in fig. 8(a), the horizontal block-shaped solderable grounding block (120) includes an upper surface (80), a lower surface parallel to the upper surface, and four side surfaces perpendicular to the upper surface. Wherein, four sides of the horizontal block-shaped grounding block (120) are directly and electrically connected with the surface of the second gap of the cavity wall through welding. Specifically, the welding may be spot welding, resistance welding, or the like.

Further, when the grounding block (120) is directly electrically connected with the surface of the second notch of the cavity wall of the cavity (110), the first protrusion (121) which is arranged on the grounding block (120) and protrudes from the grounding block (120) to the inside of the cavity (110) is positioned inside the cavity (110) and can be connected with the strip line (130).

As can be seen from fig. 8(b), the ground block (120) is directly electrically connected to the surface of the second notch of the cavity wall of the cavity (110), and the first protrusion (121) protruding from the ground block (120) to the inside of the cavity (110) and disposed on the ground block (120) is located inside the cavity (110).

The cavity walls shown in fig. 6-8 may also be extended walls of the cavity wall of the cavity (110), for example.

For example, as shown in fig. 9, a direct electrical connection can be maintained between the ground block (120) and an extended wall of the cavity (110). Specifically, similar to the grounding block (120) being in direct electrical connection with the cavity wall of the cavity (110), the grounding block (120) may be in electrical connection with the outer surface of the extended wall of the cavity (110) according to several cases described in fig. 6; the grounding block (120) can also be electrically connected to the inner surface of the extended wall of the cavity (110) according to several cases described in fig. 7, except that in this case the grounding block (120) is not located inside the cavity; the ground block (120) can be directly electrically connected with the second notch of the extending wall body of the cavity body (110) according to the several situations described in fig. 8, which are not described in detail herein.

Specifically, when the cavity (110) is a rectangular parallelepiped cavity shown in fig. 4, the cavity wall of the cavity (110) may be any one of the upper surface wall, the lower surface wall, or the side wall shown in fig. 4.

It should be understood that fig. 6-9 are intended to illustrate the manner in which a direct electrical connection can be maintained between the ground block (120) and the cavity (110), and should not limit the scope of the present application. The ground block (120) and the cavity (110) can be electrically connected through other connection modes, and the connection modes are not listed.

It should be further understood that the grounding block (120) is an integral part in the cases shown in fig. 6-9, and in the embodiment of the present application, the grounding block (120) may further include at least two parts, wherein the manner of electrically connecting each part with the cavity (110) is similar to that shown in fig. 6-9, and is not described here again.

The placement of the grounding block (120) on the cavity (110) and the ability to maintain a direct electrical connection with the cavity (110) is exemplified above in connection with fig. 6-9.

The ability to maintain electrical connection between the striplines (130) and the ground patches (120) is illustrated below with reference to fig. 10. Fig. 10 is a schematic diagram of the strip line (130) and the ground block (120) electrically connected according to the embodiment of the present application.

Specifically, the electrical connection of the strip line (130) and the grounding block (120) via the short-circuit line (131) with the length being odd times of quarter wavelength includes the following cases:

the first condition is as follows:

a first bump (121) is arranged on the grounding block (120), and the strip line (130) is electrically connected with the first bump (121) through a short circuit line (131) with the length being odd times of quarter wavelength.

The short-circuit line (131) having a length of an odd multiple of a quarter wavelength is a part of the strip line (130). That is, the short-circuited strip line having a length of an odd multiple of a quarter wavelength is included in the strip line (130). For example, the end of the strip line (130) is a short-circuit line (131) having a length of an odd multiple of a quarter wavelength. Specifically, the short-circuit line (131) may be soldered on the first bump (121).

Illustratively, a short circuit line (131) in the strip line (130) is electrically connected with the first bump (121) inside the cavity (110).

As shown in fig. 10 (a). As can be seen from fig. 10(a), the horizontal block-shaped solderable grounding block (120) is in direct electrical connection with the cavity wall of the cavity (110), and in particular, the connection means for maintaining electrical connection may be any one of those shown in fig. 6-9. Fig. 10(a) illustrates an example of the connection method shown in fig. 6 (d).

A first bulge (121) protruding from the grounding block (120) to the inside of the cavity (110) penetrates through a second through hole formed in the cavity wall of the cavity (110), extends to the inside of the cavity (110), is connected with the strip line (130) through a short circuit line (131) in the strip line (130), one end of the short circuit line (131) is connected with the strip line (130), and the other end of the short circuit line is welded on the first bulge (121), so that direct current grounding of the strip line (130) is achieved.

Fig. 10(b) illustrates an example of the connection method shown in fig. 7 (d).

A first protrusion (121) protruding from the grounding block (120) to the inside of the cavity (110) is positioned inside the cavity (110), and is electrically connected with the strip line (130) through a short circuit line (131) in the strip line (130), so that the direct current grounding of the strip line (130) is realized.

Fig. 10(c) illustrates an example of the connection method shown in fig. 8 (b).

Case two:

the cavity (110) has cavity wall and cavity, and ground connection piece (120) are embedded in the cavity wall, and are equipped with first through-hole in ground connection piece (120), move the looks ware and still include: a short circuit line (131) with the length of odd times of quarter wavelength, wherein the short circuit line (131) is a coaxial cable with one short circuit end; the electrical connection of the ground block (120) to the strip line (130) comprises: the outer conductor of the short circuit line (131) is connected with the grounding block (120), and the inner conductor of the short circuit line (131) extends to the inside of the cavity (110) through the first through hole and is welded with the strip line (130).

The outer conductor and the inner conductor of one end of the short circuit line (131) far away from the cavity (110) are welded together, and the end of the short circuit line (131) is short-circuited.

Specifically, the grounding block (120) may be a hollow cylindrical rivet, and is directly pressed and riveted in the cavity wall, i.e. the grounding block (120) and the cavity (110) are tightly connected together.

As shown in fig. 10 (d). As can be seen from fig. 10(d), the ground block (120) is embedded in the cavity wall of the cavity (110), specifically, the connection manner is as shown in fig. 8 (a).

The outer conductor (1311) of the short circuit line (131) is welded on the grounding block (120), and the inner conductor (1312) of the short circuit line (131) passes through the first through hole, extends to the inside of the cavity (110), and is welded with the strip line (130).

In the case shown in fig. 10(d), the grounding block (120) may be a hollow rivet, and the rivet is pressed into the cavity wall of the cavity (110) and penetrates through the cavity wall of the cavity (110) to be tightly connected with the cavity (110) by means of clinching, so as to realize electrical connection. The rivet can be partially arranged outside the cavity wall of the cavity (110) to be welded with the outer conductor of the short circuit line (131) for connection convenience, and the inner conductor of the short circuit line (131) extends to the inside of the cavity (110) through the hollow rivet to be welded with the strip line (130), so that the direct current grounding of the strip line (130) is realized.

Case three:

The short circuit line (131) with the length of odd times of quarter wavelength is an integrated short circuit line (131) on a Printed Circuit Board (PCB) (150). That is, the strip line (130) is maintained in direct electrical connection with the first bump (121) via the transition of the PCB (150).

Illustratively, a first end of the short-circuit line (131) is welded to the first protrusion (121), and a second end of the short-circuit line (131) is welded to the other end of the first connection line (132). One end of the first connecting line (132) is welded with the strip line (130), and the other end of the first connecting line (132) penetrates through a third through hole formed in the wall of the cavity (110) and a fourth through hole corresponding to the third through hole and formed in the PCB (150) and is welded on the PCB (150).

Exemplarily, the PCB (150) is a ground block (120), as shown in fig. 10(e) -10 (g). Fig. 10(e) and 10(f) are two side views, and fig. 10(g) is a top view.

As can be seen from fig. 10(e), the PCB (150) is disposed on the cavity wall or an extended wall of the cavity (110) and maintains electrical connection, specifically, the connection may be any one as shown in fig. 6 to 9. Here, the connection method is described as the connection method shown in fig. 6 (a).

It is to be understood that the PCB (150) being arranged on the cavity wall or on an extended wall of the cavity (110) comprises:

the entirety of the PCB (150) is disposed on a cavity wall of the cavity (110); alternatively, the PCB (150) is partially disposed on a cavity wall of the cavity (110) and partially disposed on an extended wall of the cavity (110).

As can be seen from fig. 10(f), a fourth through hole is disposed on the PCB (150), and a third through hole corresponding to the fourth through hole is disposed on the cavity wall of the cavity (110). One end of the first connecting line (132) is welded with the strip line (130), and the other end of the first connecting line (132) sequentially penetrates through the third through hole and the fourth through hole to be welded on the PCB (150).

As can be seen from fig. 10(g), the first end of the short-circuiting wire (131) is soldered to the first protrusion (121), and the second end of the short-circuiting wire (131) is soldered to the other end of the first connecting wire (132), thereby achieving direct current grounding of the strip line (130).

Exemplarily, the ground block (120) is embedded in the extending wall body of the cavity wall, the PCB (150) is located above the ground block (120), the first protrusion (121) is a portion protruding from the ground block (120) to the PCB (150), and the soldering of the first end of the short-circuit line (131) and the first protrusion (121) together includes:

the PCB (150) is provided with a fifth through hole, the first bump (121) penetrates through the fifth through hole to be welded on the PCB (150), and the first end of a short circuit line (131) integrated on the PCB (150) is welded with the first bump (121).

As shown in fig. 10(h) and 10 (i). Fig. 10(h) is a side view, and fig. 10(i) is a top view.

As can be seen from fig. 10(h), the horizontal block-shaped solderable ground block (120) is disposed on and in direct electrical connection with the extended wall of the cavity (110), and in particular, the connection between the ground block (120) and the extended wall may be any one of those shown in fig. 6-9. Here, the connection method is described as the connection method shown in fig. 8 (a).

The PCB (150) and the grounding block (120) are positioned outside the cavity (110), wherein the grounding block (120) is embedded in the extension wall body and is tightly connected with the extension wall body to realize direct electrical connection; the PCB (150) is disposed above the ground block (120). In order to enable a first bump (121) protruding from a ground block (120) to a PCB (150) to be soldered on the PCB (150), a fifth through hole is provided on the PCB (150), through which the first bump (121) is soldered on the PCB (150).

As can be seen from fig. 10(i), the first end of the short-circuiting wire (131) is soldered to the first protrusion (121), and the second end of the short-circuiting wire (131) is soldered to the other end of the first connecting wire (132), thereby achieving direct current grounding of the strip line (130).

Illustratively, the first connecting line (132) is a portion of the stripline (130). Namely, a part of the strip line (130) passes through a third through hole arranged on the cavity wall of the cavity (110) and a fourth through hole arranged on the PCB (150) and is welded on the PCB (150).

Illustratively, the first connection line (132) may also be a section of conductive wire additionally provided for connecting the ribbon line (130) and the short-circuit line (131) integrated on the PCB (150), respectively, while sacrificing some stability.

Fig. 10 illustrates, in simplified form by way of example, several forms in which the striplines (130) can be directly dc grounded.

It should be understood that fig. 10 is only an example and does not limit the scope of the present disclosure, for example, the ribbon wire (130) and the first bump (121) can be directly electrically connected by other electrical connection methods.

Further, the phase shifter provided by the application not only can realize direct current grounding of the strip line (130) to achieve the purpose of lightning protection of the strip line (130), but also can realize direct current grounding of an outer conductor (141) of a cable (140) for transmitting signals outside a cavity (110) of the phase shifter, and realize transmission from the outside of the cavity (110) to the inside of the cavity (110). As shown in fig. 11, fig. 11 is a schematic diagram of another phase shifter provided in the embodiment of the present application, where the schematic diagram includes:

a cavity (110), a ground block (120), a ribbon wire (130), an outer conductor (141) of a cable (140), and an inner conductor (142) of the cable (140). The grounding block (120) is arranged on the cavity (110) and is tightly connected with the cavity (110) together, so that direct electrical connection with the cavity (110) is realized; the strip line (130) is arranged inside the cavity (110) and is electrically connected with the grounding block (120), and the specific connection mode is shown in fig. 10; the outer conductor (141) of the cable (140) is arranged outside the cavity (110) and is electrically connected with the grounding block (120), and the specific connection mode is described in combination with fig. 13; the specific connection manner for electrically connecting the inner conductor (142) of the cable (140) and the strip line (130) to realize signal transmission will be described with reference to fig. 13.

It is to be understood that the implementation of the stripline (130) and the implementation of the outer conductor (141) of the cable (140) described in the present application are separate two parts. That is, the scheme of directly grounding the strip line (130) according to the embodiment of the present application and/or the scheme of directly grounding the outer conductor (141) of the cable (140) according to the embodiment of the present application are within the protection scope of the embodiment of the present application. In the following embodiments, the direct dc grounding of the strip line (130) and the direct dc grounding of the outer conductor (141) of the cable (140) are simultaneously realized as an example.

First, referring to fig. 13, the cable (140) is exemplified such that the outer conductor (141) and the ground block (120) can be electrically connected to each other, and the inner conductor (142) and the strip line (130) of the cable (140) are electrically connected to each other. Fig. 13 is a schematic diagram of the cable (140) according to the embodiment of the present disclosure, in which the inner conductor (142) and the strip line (130) can be electrically connected.

The first condition is as follows:

be equipped with second arch (122) on ground connection piece (120), ground connection piece (120) and outer conductor (141) electric connection of cable (140) include:

the outer conductor (141) of the cable (140) is electrically connected to the second projection (122). Wherein the second bump (122) is a solderable part protruding from the ground block (120) to the outside of the cavity (110).

Specifically, the provision of the second projection (122) on the ground block (120) may be possible as shown in (a) and (b) in fig. 12.

Fig. 12 is a schematic view of the ground block (120) provided with a projection in the present application. As can be seen from fig. 12 (a), the grounding block (120) is an integral body, and the second protrusion (122) and the first protrusion (121) are arranged on the grounding block (120); as can be seen from fig. 12 (b), the ground block (120) is in two parts, and the second protrusion (122) and the first protrusion (121) are respectively provided on the two parts of the ground block (120).

It should be understood that the specific form of the grounding block (120) in the present application is not limited, and may include a plurality of portions, each portion is disposed on the cavity (110) and is tightly connected to the cavity (110), and the manner of implementing the direct electrical connection with the cavity (110) is similar to that in fig. 6-9, and is not described herein again.

Illustratively, the horizontal block-shaped solderable ground block (120) maintains a direct electrical connection with the cavity wall of the cavity (110), and in particular, the connection that maintains the electrical connection may be any one of those shown in fig. 6-9.

The ground block (120) is electrically connected with the outer conductor (141) of the cable (140) and comprises:

the outer conductor (141) of the cable (140) is electrically connected to the second projection (122).

Fig. 13(a) illustrates an example of the connection manner between the horizontal block-shaped solderable ground block (120) and the cavity wall of the cavity (110) as shown in fig. 6 (a).

The electrical connection of the inner conductor (142) of the cable (140) to the ribbon wire (130) comprises:

ground connection piece (120) set up on the surface of cavity wall, be equipped with on ground connection piece (120) from ground connection piece (120) to the protruding second of the outside of cavity (110) protruding (122), be equipped with the seventh through-hole in the protruding (122) of second, be equipped with the eighth through-hole that corresponds with the seventh through-hole on ground connection piece (120), be equipped with the ninth through-hole that corresponds with the eighth through-hole in the cavity wall of cavity (110), inner conductor (142) pass in proper order seventh through-hole, eighth through-hole and ninth through-hole extend to the inside and stripline (130) electrical connection of cavity (110), realize signal transmission.

Fig. 13(b) illustrates the connection between the horizontal block-shaped solderable ground block (120) and the cavity wall of the cavity (110) by way of example as shown in fig. 7 (a).

The connection of the inner conductor (142) of the cable (140) to the strip line (130) comprises:

ground connection piece (120) set up on the internal surface of cavity wall, be equipped with on ground connection piece (120) to the protruding second arch (122) of outside of cavity (110) from ground connection piece (120), be equipped with the seventh through-hole in second arch (122), be equipped with the eighth through-hole that corresponds with the seventh through-hole on ground connection piece (120), the inside that the inner conductor (142) of cable (140) passed seventh through-hole and eighth through-hole in proper order and extended to cavity (110) is in the same place with stripline (130) welding, realize the direct current ground connection of outer conductor (141) and signal transmission of cable (140) simultaneously.

Fig. 13(c) illustrates an example of the connection method shown in fig. 8 (a).

The grounding block (120) is embedded into the wall of the cavity, a second protrusion (122) protruding from the grounding block (120) to the outside of the cavity (110) is arranged on the grounding block (120), a seventh through hole is formed in the second protrusion (122), an eighth through hole corresponding to the seventh through hole is formed in the grounding block (120), the inner conductor (142) of the cable (140) sequentially penetrates through the seventh through hole and the eighth through hole to extend to the inside of the cavity (110) to be electrically connected with the strip line (130), and meanwhile direct current grounding and signal transmission of the outer conductor (141) of the cable (140) are achieved.

Case two:

the outer conductor (141) of the cable (140) is electrically connected to the second projection (122). Wherein the second protrusion (122) is a portion protruding from the ground block (120) to the outside of the cavity (110).

the inner conductor (142) of the cable (140) is electrically connected with the strip line (130) through a second connecting line (151), wherein the second connecting line (151) is integrated on a Printed Circuit Board (PCB) (150), the PCB (150) is positioned outside the cavity (110), a third through hole is arranged in the cavity wall of the cavity (110),

a fourth through hole corresponding to the third through hole is formed in the PCB (150), one end of the first connecting wire (132) is electrically connected with the strip line (130), and the other end of the first connecting wire (132) sequentially penetrates through the third through hole and the fourth through hole to be welded on the PCB (150);

wherein a first end of the second connection line (151) is welded to the inner conductor (142), and a second end of the second connection line (151) is welded to the other end of the first connection line (132).

The outer conductor (141) of the cable (140) and the second protrusion (122) can keep electrical connection; the inner conductor (142) of the cable (140) is electrically connected to the strip line (130) inside the cavity (110) via a second connection line (151) outside the cavity (110). The second connection line (151) is a second connection line (151) integrated on the printed circuit board PCB (150). That is, the inner conductor (142) need not extend into the cavity (110).

Illustratively, the PCB (150) is a ground block (120),

as shown in fig. 13(d), 13(e) and 10 (f). Fig. 13(d) and 13(e) are two side views, and fig. 10(f) is a plan view.

The detailed description of FIG. 10(f) is omitted here for the foregoing description.

As can be seen from fig. 13(d), the PCB (150) is disposed on the cavity wall or an extended wall of the cavity (110) and maintains electrical connection, specifically, the connection may be any one as shown in fig. 6-9. Here, the connection method is described as the connection method shown in fig. 6 (a).

As can be seen from fig. 13(e), the first end of the second connection line (151) is welded to the inner conductor (142), and the second end of the second connection line (151) is welded to the other end of the first connection line (132), so that the direct current grounding and the signal transmission of the outer conductor (141) of the cable (140) are simultaneously achieved.

Illustratively, the ground block (120) is embedded in the extending wall of the cavity wall, the PCB (150) is located above the ground block (120), the second protrusion (122) is a portion protruding from the ground block (120) opposite to the PCB (150), and the soldering together of the first end of the second connection line (151) and the inner conductor (142) comprises:

a tenth through hole is formed in the PCB (150), the inner conductor (142) sequentially penetrates through the seventh through hole, the eighth through hole and the tenth through hole and is welded to the PCB (150), and the first end of a second connecting wire (151) integrated on the PCB (150) is welded to the inner conductor (142).

As shown in fig. 13(f) and 13 (g). Fig. 13(f) is a side view, and fig. 13(g) is a plan view.

As can be seen from fig. 13(f), the horizontal block-shaped solderable ground block (120) is disposed on the extended wall of the cavity (110) and is in direct electrical connection with the extended wall, and in particular, the connection between the ground block (120) and the extended wall may be any one of those shown in fig. 6-9. Here, the connection method is described as the connection method shown in fig. 8 (a).

The PCB (150) and the grounding block (120) are positioned outside the cavity (110), wherein the grounding block (120) is embedded in the extension wall body and is tightly connected with the extension wall body to realize direct electrical connection; the PCB (150) is disposed above the ground block (120). In order to enable the inner conductor (142) of the cable (140) to be soldered to the PCB (150), a tenth through hole is provided in the PCB (150), and the inner conductor (142) is soldered to the PCB (150) through a seventh through hole provided in the second protrusion (122), an eighth through hole provided in the ground block (120), and the tenth through hole provided in the PCB (150) in this order.

As can be seen from fig. 13(g), the first end of the second connection line (151) is welded to the inner conductor (142), and the second end of the second connection line (151) is welded to the other end of the first connection line (132), so that the direct current grounding and the signal transmission of the outer conductor (141) of the cable (140) are simultaneously achieved.

Illustratively, the ground block (120) and the second protrusion (122) are integrally formed, wherein the seventh through hole and the eighth through hole are one through hole.

Case three:

the cavity (110) is provided with a cavity wall and a cavity, the grounding block (120) is embedded in the cavity wall, a sixth through hole is formed in the grounding block (120), and the inner conductor (142) is electrically connected with the strip line (130) and comprises:

the inner conductor (142) passes through the sixth through hole and extends to the inside of the cavity (110) to be welded with the strip line (130).

As shown in fig. 13 (h). As can be seen from fig. 13(h), the horizontal block-shaped solderable ground block (120) is disposed on and in direct electrical connection with the extended wall of the cavity (110), and in particular, the connection between the ground block (120) and the extended wall may be any one of those shown in fig. 6-9. Here, the connection method is described as the connection method shown in fig. 8 (a).

The outer conductor (141) of the cable (140) is welded on the grounding block (120), and the inner conductor (142) of the cable (140) passes through the sixth through hole, extends to the inside of the cavity (110) and is welded with the strip line (130).

In the case shown in fig. 13(h), the ground block (120) may be a hollow rivet, and the rivet is pressed into the cavity wall of the cavity (110) and penetrates through the cavity wall of the cavity (110) to be tightly connected with the cavity (110) by means of clinching, so as to realize electrical connection. The rivet can be partially arranged outside the cavity wall of the cavity (110) to be welded with the outer conductor (141) of the cable (140) for connection convenience, the inner conductor (142) of the cable (140) extends to the inside of the cavity (110) through the hollow rivet to be welded with the strip line (130), and direct current grounding and signal transmission of the outer conductor (141) of the cable (140) are achieved.

It should be understood that fig. 13 is by way of example only and is not intended to limit the scope of the present application. The inner conductor (142) and the strip line (130) can be connected in other ways for signal transmission.

It should also be understood that comparing fig. 10(d) and fig. 13(h) reveals that the grounding block (120) can be in two parts, one part being electrically connected to the strip line (130) to achieve direct dc grounding of the strip line (130); the other part is electrically connected with the outer conductor (141) of the cable (140), and the outer conductor (141) of the cable (140) is directly grounded in a direct current mode.

Illustratively, without considering the convenience of electrical connection, the grounding block (120) may be only included in the present application, that is, the grounding block (120) is disposed on the cavity (110) by the electrical connection manner shown in fig. 6-9 and directly electrically connected to the cavity (110), and the outer conductor (141) of the cable (140) and the strip line (130) are directly electrically connected to the grounding block (120), without passing through the first protrusion (121) and the second protrusion (122).

Illustratively, a first bump (121) and a second bump (122) are provided on the ground block (120) in the present application for facilitating electrical connection.

For example, the first protrusion (121) and the second protrusion (122) are portions protruding outward from the ground pad (120), and are integrally formed with the ground pad (120). Namely, in the casting process, two bulges (a first bulge (121) and a second bulge (122)) are arranged on the obtained grounding block (120);

alternatively, the first bump (121) and/or the second bump (122) are separate parts and are disposed on the ground block (120) by electrical connection.

The second protrusion (122) is disposed on the grounding block (120) and can maintain electrical connection with the grounding block (120) as illustrated in fig. 14. Fig. 14 is a schematic diagram of the second bump (122) electrically connected to the ground block (120) according to the embodiment of the present application.

As shown in fig. 14. As can be seen from fig. 14, the second protrusion (122) has a seventh through hole capable of receiving the inner conductor (142) of the cable (140), and the ground block (120) has a corresponding eighth through hole corresponding to the seventh through hole so that the inner conductor (142) can pass through. How the inner conductor (142) is connected with the strip line (130) in the cavity (110) to transmit signals has been described above, and is not described here again.

As can be seen from fig. 14, the end of the second protrusion (122) electrically connected to the ground block (120) comprises a circular flange (1221), and specifically, the flange (1221) can be welded to the ground block (120), or screwed, or riveted, etc. to dispose the second protrusion (122) on the ground block (120) and electrically connected to the ground block (120)

Further, the first protrusion (121) can be disposed on the ground block (120) and electrically connected to the ground block (120), and the second protrusion (122) can be disposed on the ground block (120) and electrically connected to the ground block (120), which will not be described herein again.

The positional relationship and possible forms of connection between the respective portions of the phase shifter are exemplified above in connection with fig. 3 to 14. The following describes possible forms of the phase shifter provided in the present application with reference to specific embodiments.

Fig. 15 is a schematic diagram of one embodiment of a phase shifter provided in the present application. The schematic diagram includes an electroless metal cavity (110), a ground block (120), a first bump (121), an inner conductor (142) of a cable (140) and an outer conductor (141) of the cable (140), a second bump (122), and a strip line (130).

As shown in fig. 15, the cavity (110) is a rectangular parallelepiped cavity, a second notch corresponding to the size of the ground block (120) is disposed in a narrow side of a wall of the cavity (110), and the ground block (120) is welded at the second notch by friction stir welding, specifically, the welding is as shown in fig. 8(a), which is not repeated herein. Direct electrical connection between the ground block (120) and the cavity (110) is achieved.

The grounding block (120) is provided with a first bulge (121) protruding towards the inner part of the cavity (110) and a second bulge (122) protruding towards the outer part of the cavity (110). In the present embodiment, the first protrusion (121), the second protrusion (122), and the ground block (120) are integrally molded when being molded.

The first bump (121) is welded with a short circuit line (131) which is included in the strip line (130) and has the length which is odd times of quarter wavelength, so that direct current grounding of the strip line (130) is realized, and the purpose of lightning protection of the strip line (130) is achieved; the second bulge (122) is welded with the outer conductor (141) of the cable (140) outside the cavity (110), so that the outer conductor (141) of the cable (140) is directly grounded in a direct current mode.

Specifically, a through hole for accommodating the inner conductor (142) of the cable (140) is arranged in the second protrusion (122), and the through hole penetrates through the grounding block (120), so that the inner conductor (142) of the cable (140) extends into the cavity (110) through the through hole and is welded with the strip line (131) together, and signal transmission is realized.

Exemplarily, a second notch corresponding to the size of the grounding block (120) can be arranged on the wide side of the cavity wall of the cavity (110). As shown in fig. 15(b), the positional relationship and the direct electrical connection manner between the respective portions are similar to those of fig. 15(a), and are not described again here.

Fig. 16 is a schematic diagram of a phase shifter according to an embodiment of the present disclosure. The schematic diagram includes an electroless metal cavity (110), a ground block (120), a first bump (121), inner (142) and outer (141) conductors of a cable (140), a second bump (122), a strip line (130), and a PCB (150).

As shown in fig. 16, a second notch corresponding to the size of the ground pad (120) is disposed in the extending wall of the cavity (110), and the ground pad (120) is welded at the second notch by a friction stir welding method, specifically, the welding method is shown in fig. 8(a), which is not repeated herein. Direct electrical connection between the ground block (120) and the cavity (110) is achieved.

The grounding block (120) is provided with a first bulge (121) of a bulge part which is opposite to the inner part of the cavity (110) and a second bulge (122) of a bulge part which is the same to the inner part of the cavity (110). In the present embodiment, the first protrusion (121), the second protrusion (122), and the ground block (120) are integrally molded when being molded.

As shown in fig. 16, the PCB (150) is located outside the cavity (110) and partially disposed above the ground block (120). Wherein, a short circuit line (131) with the length being odd times of quarter wavelength and a second connecting line (151) are integrated on the PCB (150).

Specifically, the first bump (121) is welded on the PCB (150) through a fifth through hole arranged on the PCB (150); one end of the first connecting wire (132) is electrically connected with the strip line (130), and the other end of the first connecting wire (132) sequentially penetrates through a third through hole formed in the wall of the cavity (110) and a fourth through hole formed in the PCB (150) to be welded on the PCB (150).

The first end of a short circuit line (131) on the PCB (150) is welded with the first bulge (121), and the second end of the short circuit line (131) is welded with the other end of the first connecting line (132), so that direct current grounding of the strip line (130) is realized; the second bulge (122) is welded with the outer conductor (141) of the cable (140) to realize direct current grounding of the outer conductor (141) of the cable (140).

Specifically, the second protrusion (122) is provided with a through hole for accommodating the inner conductor (142) of the cable (140), the through hole penetrates through the grounding block (120), and the PCB (150) is provided with a tenth through hole corresponding to the through hole. The inner conductor (142) of the cable (140) is soldered to the PCB (150) through the through hole and the tenth through hole in sequence. One end of the second connecting wire (151) is electrically connected with the inner conductor (142), and the other end of the second connecting wire (151) is electrically connected with the first connecting wire (132), so that signal transmission is realized.

Fig. 17 is a schematic diagram of a specific phase shifter provided in the present application. The schematic includes an electroless metal cavity (110), inner (142) and outer (141) conductors of a cable (140) of a ground block (120) (first and second portions), a stripline (130), and a short circuit (131) of odd quarter wavelength.

As shown in fig. 17, the grounding block (120) comprises two parts, wherein a first through hole is arranged in one part, wherein the outer conductor (1311) of the short circuit line (131) is welded with the part of the short circuit line outside the cavity (110), the inner conductor (1312) of the short circuit line (131) passes through the first through hole and extends to the inside of the cavity (110) to be welded with the strip line (130), specifically, the end of the short circuit line (131) far away from the cavity (110) is welded with the outer conductor and the inner conductor to be short-circuited, and then the direct current grounding of the strip line (130) is realized;

and a sixth through hole is formed in the other part, wherein the outer conductor (141) of the cable (140) is welded with the part of the cable outside the cavity (110), the inner conductor (142) of the cable (140) extends to the inside of the cavity (110) through the sixth through hole and is welded with the strip line (130), and meanwhile, the direct current grounding and signal transmission of the outer conductor (141) of the cable (140) are realized.

Second notches corresponding to the two parts of the grounding block (120) are formed in the wall of the cavity (110), and the two parts of the grounding block (120) are welded to the two second notches by a friction stir welding method, specifically, the welding method is shown in fig. 8(a), and is not described again here. Direct electrical connection between the ground block (120) and the cavity (110) is achieved.

In order to reduce resonance, the odd-multiple quarter-wave short-circuit lines (131) referred to in the present application are typically directly quarter-wave short-circuit lines (131).

It should be understood that the modules referred to in this application to maintain direct electrical connection may be soldered or include solderable portions.

Illustratively, the phase shifters shown in fig. 15-17 can be applied in antennas. An antenna provided by the present application will be briefly described below with reference to fig. 18.

Fig. 18 is a schematic structural diagram of an antenna according to an embodiment of the present application, where the schematic structural diagram includes: an antenna unit 1601 for radiating an electromagnetic beam; and any phase shifter 1602 described in the previous embodiments connected to an antenna element for adjusting an angle of an electromagnetic beam radiated by the antenna element.

The antenna provided by the embodiment of the application comprises the phase shifter 1602, and a cavity of the phase shifter 1602 does not need to be plated. And then make the simple structure of antenna, processing is convenient, cost reduction, and structural layout is more reasonable. The problem of among the prior art when moving the looks ware and be non-electroplating cavity, need coupling connection ground connection unstable is solved.

Fig. 19 is a schematic structural diagram of a base station according to an embodiment of the present application, where the schematic structural diagram includes: the antenna described in figure 18. The base station provided by the embodiment of the present application includes an antenna 1701, and the antenna 1701 includes the phase shifter described above.

Those of ordinary skill in the art will understand that: the above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A phase shifter, comprising:

the cavity (110), the said cavity (110) is the metal cavity of non-electroplating;

a ribbon wire (130), the ribbon wire (130) disposed within the cavity (110);

characterized in that, the phase shifter further comprises:

a ground block (120), the ground block (120) being a solderable module, the ground block (120) being disposed on the cavity (110), the ground block (120) being electrically connected to the stripline (130);

the phase shifter further includes: a first protrusion (121), the first protrusion (121) being disposed on the ground block (120);

the electrical connection of the ground block (120) to the stripline (130) includes:

the strip line (130) is electrically connected to the first bump (121) via a short-circuit line (131) having a length that is an odd multiple of a quarter wavelength.

2. The phase shifter according to claim 1, wherein the short-circuit line (131) is part of the strip line (130), the short-circuit line (131) being located inside the cavity (110);

the first protrusion (121) is located inside the cavity (110);

the first protrusion (121) is welded to the short circuit line (131) inside the cavity (110).

3. The phase shifter according to claim 2, wherein the cavity (110) has a cavity wall and a cavity, the first protrusion (121) is a portion protruding from the ground block (120) to an inside of the cavity (110), and the first protrusion (121) located inside the cavity (110) includes:

the grounding block (120) is arranged on the outer surface of the cavity wall, a second through hole is formed in the cavity wall of the cavity (110), and the first protrusion (121) penetrates through the second through hole and is located inside the cavity (110); alternatively, the first and second electrodes may be,

the grounding block (120) is arranged on the inner surface of the cavity wall; alternatively, the first and second electrodes may be,

the ground block (120) is embedded in the cavity wall.

4. Phase shifter as in claim 1, characterized in that the short-circuit line (131) is integrated on a PCB (150), the PCB (150) being located outside the cavity (110), a third through hole being provided in a cavity wall of the cavity (110),

a fourth through hole corresponding to the third through hole is formed in the PCB (150), one end of a first connecting line (132) is connected with the strip line (130), and the other end of the first connecting line (132) sequentially penetrates through the third through hole and the fourth through hole to be welded on the PCB (150);

wherein a first end of the short circuit line (131) is welded to the first protrusion (121), and a second end of the short circuit line (131) is welded to the other end of the first connection line (132).

5. The phase shifter according to claim 4, wherein the PCB (150) is the ground block (120); alternatively, the first and second electrodes may be,

the ground block (120) is embedded in the extending wall body of the cavity wall, the PCB (150) is located above the ground block (120), the first protrusion (121) is a portion protruding from the ground block (120) to the PCB (150), and the soldering together of the first end of the short-circuit line (131) and the first protrusion (121) comprises:

a fifth through hole is formed in the PCB (150), the first protrusion (121) is welded to the PCB (150) through the fifth through hole, and a first end of the short circuit line (131) integrated on the PCB (150) is welded to the first protrusion (121).

6. Phase shifter as in claim 4, characterized in that the first connection line (132) is a strip line extending out of the strip line (130).

7. Phase shifter in accordance with any of claims 1-6, characterized in that the grounding block (120) is integrally formed with the first protrusion (121).

8. Phase shifter according to any of claims 1-6, characterized in that the ground block (120) is electrically connected with an outer conductor (141) of a cable (140), wherein an inner conductor (142) of the cable (140) is connected with the strip line (130), the cable (140) being used for transmitting signals from outside the cavity (110) to inside the cavity (110).

9. The phase shifter according to claim 8, wherein the cavity (110) has a cavity wall and a cavity, the ground block (120) is embedded in the cavity wall, a sixth via is provided in the ground block (120), and the connecting the inner conductor (142) with the strip line (130) comprises:

the inner conductor (142) extends through the sixth through hole to the inside of the cavity (110) and is welded with the strip line (130).

10. The phase shifter of claim 8, further comprising: a second protrusion (122), the second protrusion (122) being disposed on the ground block (120);

the outer conductor (141) of the cable (140) is electrically connected with the second protrusion (122).

11. The phase shifter according to claim 10, wherein the second protrusion (122) is a portion protruding from the ground block (120) to the outside of the cavity (110);

the connection of the inner conductor (142) of the cable (140) to the ribbon wire (130) comprises:

if the grounding block (120) is arranged on the inner surface of the cavity wall; alternatively, the first and second electrodes may be,

the grounding block (120) is embedded in the wall of the cavity, a seventh through hole is formed in the second protrusion (122), an eighth through hole corresponding to the seventh through hole is formed in the grounding block (120), and an inner conductor (142) of the cable (140) sequentially penetrates through the seventh through hole and the eighth through hole to extend to the inside of the cavity (110) to be welded with the strip line (130) so as to realize signal transmission;

if the grounding block (120) is arranged on the outer surface of the cavity wall, a ninth through hole corresponding to the eighth through hole is formed in the cavity wall of the cavity (110), and the inner conductor (142) sequentially penetrates through the seventh through hole, the eighth through hole and the ninth through hole to extend to the inside of the cavity (110) and be welded with the strip line (130) together, so that signal transmission is realized.

12. Phase shifter according to claim 11, characterized in that the connection of the inner conductor (142) of the cable (140) with the strip line (130) comprises:

the inner conductor (142) of the cable (140) is connected with the strip line (130) via a second connection line (151), wherein the second connection line (151) is integrated on a PCB (150), the PCB (150) is located outside the cavity (110), a third through hole is arranged in the cavity wall of the cavity (110),

a fourth through hole corresponding to the third through hole is formed in the PCB (150), one end of a first connecting wire (132) is electrically connected with the strip line (130), and the other end of the first connecting wire (132) sequentially penetrates through the third through hole and the fourth through hole to be welded on the PCB (150);

13. The phase shifter as recited in claim 12, wherein the PCB (150) is the ground block (120); alternatively, the first and second electrodes may be,

the ground block (120) is embedded in the extending wall body of the cavity wall, the PCB (150) is located above the ground block (120), the second protrusion (122) is a portion protruding from the ground block (120) opposite to the PCB (150), and the welding together of the first end of the second connection line (151) and the inner conductor (142) comprises:

the PCB (150) is provided with a tenth through hole, the inner conductor (142) sequentially penetrates through the seventh through hole, the eighth through hole and the tenth through hole and is welded on the PCB (150), and the first end of a second connecting wire (151) integrated on the PCB (150) is welded with the inner conductor (142).

14. Phase shifter according to any of claims 11-13, characterized in that the ground block (120) and the second protrusion (122) are integrally formed, wherein the seventh and eighth through hole is one through hole.

15. An antenna, comprising:

an antenna unit for radiating an electromagnetic beam;

and a phase shifter according to any one of claims 1-14 connected to the antenna element for adjusting an angle of an electromagnetic beam radiated by the antenna element.