Phase shifter and base station antenna
A phase shifter and cable technology, applied in antennas, antenna supports/installation devices, waveguide-type devices, etc., can solve the problems of coaxial cable solder joint damage, exposed pull rods, etc.
Active Publication Date: 2019-05-14
WUHAN HONGXIN TELECOMM TECH CO LTD
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Problems solved by technology
[0005] One of the objectives of the present invention is to provide a phase shifter to solve the problem of solder joint damage and pull rod exposure in existing phase shifters where the solder joints of coaxial cables are easily stressed.
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[0030] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0031] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.
[0032] The phase shifte...
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The embodiment of the invention provides a phase shifter and a base station antenna and relates to the technical field of mobile communication equipment. The phase shifter comprises a shell, a pull rod, a coaxial cable, a cable fixing piece and a dielectric plate, wherein a radio frequency transmission cavity and a pull rod moving cavity are formed in the shell, the dielectric plate is contained in the radio frequency transmission cavity, the pull rod can be installed in the pull rod moving cavity in a sliding mode, and one en of the pull rod is connected with the dielectric plate; and the cable fixing piece is buckled to the outer wall of the shell and is provided with a cable slot used for clamping the coaxial cable welded to the outer wall of the shell. According to the phase shifter, the pull rod is contained in the pull rod moving cavity, the pull rod moving cavity plays limiting, supporting and guiding roles in the back-and-forth sliding process of the pull rod in the pull rod moving cavity, and the situation that the pull rod and the coaxial cable interfere in the sliding process can be avoided; and besides, the coaxial cable is clamped into the cable slot on the cable fixing piece, and the cable slot provides supporting force for the coaxial cable to avoid the situation that welding spots of the coaxial cable are stressed and damaged in the pulling process of the pull rod.
Description
technical field [0001] Embodiments of the present invention relate to the technical field of mobile communication equipment, and in particular to a phase shifter and a base station antenna. Background technique [0002] As the final control terminal of the mobile communication network, the base station antenna is the device that finally adjusts the network provided to users. As the core component of the base station antenna, the phase shifter can achieve different electrical downtilt angles for the same type of antenna in different usage areas and different communication load areas, thereby providing greater network capacity and reducing communication interference , reduce labor costs. [0003] Existing phase shifters mostly use coaxial cables directly welded to the cavity. During welding, the surface of the cavity is treated with tin plating, and the outer conductor of the coaxial cable is welded on the side wall of the cavity. Welding requirements, generally the welding ...
Claims
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IPC IPC(8): H01P1/18H01Q3/32H01Q1/24
Inventor 范雄辉
Owner WUHAN HONGXIN TELECOMM TECH CO LTD