Phase shifter cavity structure

Abstract

The invention relates to the technical field of mobile communication antennas, and discloses a phase shifter cavity structure which comprises two cavities which are integrally extruded, formed and laminated, power division networks and phase shifting media are arranged in the two cavities, and the two laminated cavities are arranged in a staggered mode. The power division networks and the phase shifting media arranged in the two cavities are correspondingly arranged in a staggered manner; lateral outgoing of the connecting cable can be realized, so that the phase shifter can be arranged on a wide side surface, namely the top wall is vertical to the reflecting plate during antenna layout, and interference is not easy to occur during miniaturized layout of a multi-frequency antenna.

Description

Technical Field

[0001] The present invention relates to the technical field of mobile communication antennas, and in particular to a phase shifter cavity structure. Background Art

[0002] With the development of mobile communication technology, the integration of multiple systems and multiple standards into one antenna has become the mainstream configuration for system requirements and antenna design. Due to the limitation of the frontal area, the multi-system fusion antenna must not only meet the requirements of integrating multiple arrays into one antenna but also meet the requirements of cross-section miniaturization. The internal structure of the antenna is compact, and the phase shifting network on the back of the antenna is usually set parallel to the reflector, which often causes interference. Therefore, the industry generally adopts the method of arranging the phase shifter with the phase shifting network cavity perpendicular to the reflector. Although this method can be used to set up multiple phase shifting networks, the existing cable welding method of the main feed end and output end of the phase shifter is difficult to adapt to this cavity arrangement, which brings great challenges to network wiring. Therefore, there is an urgent need to develop a new cavity structure and port connection method.

[0003] The existing technology usually adopts the method of welding cables lying along the longitudinal direction of the cavity. In this method, the cable wiring has a large bending radius, which increases the cable length. Another method is to arrange the cable perpendicular to the narrow side of the cavity. After the phase shifter is arranged vertically, the cavity is erected higher due to the requirement of the cable bending radius, thereby increasing the space behind the antenna, so the antenna thickness is larger. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and propose a phase shifter cavity structure to achieve lateral outlet of the port connection cable. The phase shifter cable can be wired without winding, thereby achieving the optimal cable length of the phase shift network port.

[0005] To achieve the above object, the present invention provides the following technical solutions: The present invention provides a phase shifter cavity structure, comprising two cavities formed by integral extrusion stacking, both of which are provided with a power splitting network and a phase shifting medium. The two cavities of the stacking are staggered, and the power splitting networks and phase shifting media provided in the two cavities are correspondingly staggered.

[0006] Furthermore, the end faces of the two layers of cavities are staggered or the side faces are staggered.

[0007] Furthermore, it also includes a connecting cable, the power division network is provided with a plurality of output ports, the two cavities are provided with through holes corresponding to the output ports, and the connecting cable is connected to the output ports through the through holes.

[0008] Furthermore, the phase shifter cavity structure includes a top wall, a bottom wall and side walls in its length direction, and the connecting cable is arranged perpendicular to the top wall of the phase shifter cavity structure.

[0009] Furthermore, it also includes a phase shifter rod, and the phase shifter rod is connected to the phase shift medium.

[0010] The present invention has the following beneficial effects: 1. The present invention provides a phase shifter cavity structure. By staggering the two layers of cavities, the output ports of the power splitter network of the two-layer phase shifting network can be staggered. This allows the lateral outlet of the connecting cables at the ports, allowing the phase shifter to be arranged with a vertical reflector on the wide side, i.e., the top wall, during antenna layout, and is less likely to interfere with the miniaturized layout of the multi-band antenna.

[0011] 2. The phase shifter cavity structure provided by the present invention can realize the lateral outlet of the port connection cable, and the phase shifter cable can be wired without winding, thereby achieving the optimal cable length of the phase shift network port. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of embodiment 1 of the present invention; Figure 2 This is a front view of the first embodiment of the present invention; Figure 3 A top view of a first embodiment of the present invention; Figure 4 A bottom view of the first embodiment of the present invention; Figure 5 This is a right side view of the first embodiment of the present invention; Figure 6 It is a right side cross-sectional view of the first embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the reflector assembly according to the first embodiment of the present invention; Figure 8 This is a schematic diagram of the overall structure of embodiment 2 of the present invention; Figure 9 This is a front view of the second embodiment of the present invention; Figure 10 This is a top view of the second embodiment of the present invention; Figure 11 This is a bottom view of the second embodiment of the present invention; Figure 12 This is a right side view of the second embodiment of the present invention; In the figure: 1 is the cavity, 11 is the top wall, 12 is the bottom wall, 13 is the side wall, 3 is the power division network, 4 is the phase shifting medium, 5 is the connecting cable, 6 is the phase shifter rod, 7 is the output port, and 8 is the reflector. DETAILED DESCRIPTION

[0013] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0014] Example 1: Reference Figures 1 to 7 The present invention provides an embodiment: a phase shifter cavity structure, comprising two cavities 1 comprising an integral extruded laminate, wherein a power division network 3 and a phase shift medium 4 are provided inside the two cavities 1, such as Figure 3 As shown, the end faces of the two layers of the cavity 1 are staggered, that is, along Figure 3 The A direction is staggered, and the power division network 3 and the phase shift medium 4 arranged in the two cavities 1 are staggered accordingly, which facilitates assembly operation.

[0015] The phase shifter cavity structure further includes a connecting cable 5 , the power division network 3 is provided with a plurality of output ports 7 , and the two cavities 1 are provided with through holes corresponding to the output ports 7 , and the connecting cable 5 is connected to the output ports 7 through the through holes.

[0016] The phase shifter cavity structure includes a top wall 11 , a bottom wall 12 and side walls 13 in its length direction, and the connecting cable 5 is arranged perpendicular to the top wall 11 of the phase shifter cavity structure.

[0017] It also includes a phase shifter rod 6, which is connected to the phase shifting medium 4. The phase shifter rod 6 connects the phase shifting medium 4 and an external transmission device to drive the phase shifting medium 4 to move.

[0018] like Figure 7 As shown, the top wall of the phase shifter cavity is arranged perpendicular to the reflector 8. At this time, the connecting cable is parallel to the reflector 8. This outlet method is easier to wire and does not take up extra space.

[0019] Example 2: Reference Figures 8 to 12 The difference between the second embodiment and the first embodiment is that the two layers of the phase shifter cavity are staggered, that is, along Figure 10 The B direction is set to be offset.

[0020] The present invention provides a phase shifter cavity structure. By staggering the two layers of the cavity 1, the output ports 7 of the power splitter network 3 of the two-layer phase shift network can be staggered, thereby enabling the lateral outlet of the connecting cable 5 at the port. This allows the phase shifter to be arranged with the wide side, i.e., the top wall 11, perpendicular to the reflector 8 during antenna layout, and is less likely to interfere with the miniaturized layout of the multi-frequency antenna. The phase shifter cavity structure can achieve lateral outlet of the port connecting cable, and the phase shifter cable can be routed without winding, thereby achieving the optimal cable length at the phase shift network port. Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A phase shifter cavity structure, characterized in that: It comprises two cavities formed by integral extrusion stacking, both of which are provided with power splitting networks and phase shifting media. The two cavities of the stacking are staggered, and the power splitting networks and phase shifting media in the two cavities are staggered accordingly.

2. The phase shifter cavity structure according to claim 1, characterized in that: The end faces of the two layers of cavities are staggered or the side faces are staggered.

3. The phase shifter cavity structure according to claim 2, characterized in that: It also includes a connecting cable. The power division network is provided with a plurality of output ports. The two cavities are provided with through holes corresponding to the output ports. The connecting cable is connected to the output ports through the through holes.

4. The phase shifter cavity structure according to claim 3, characterized in that: The phase shifter cavity structure comprises a top wall, a bottom wall and side walls in its length direction, and the connecting cable is arranged perpendicular to the top wall of the phase shifter cavity structure.

5. The phase shifter cavity structure according to claim 1, characterized in that: It also includes a phase shifter rod, which is connected to the phase shifting medium.

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