Electrically Adjustable Antenna and Its Downtilt Angle Display Device
A technology for display devices and electronically adjustable antennas, applied to antennas, measuring devices, electrical components, etc., can solve problems such as low-temperature freezing, phase shifter scales are easy to break, and occupy a large space, so as to eliminate display errors and avoid breakage or Low temperature freezing risk, effect of reducing occupancy
Active Publication Date: 2021-05-11
MOBILE ANTENNA TECH SHENZHEN +2
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Problems solved by technology
[0004] In order to solve the above technical problems, the present invention provides an electronically adjustable antenna and its downtilt angle display device to solve the problems of the prior art phase shifter scales that are easy to break, the risk of freezing at low temperature, and occupying a large amount of space.
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[0028] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention is capable of various changes in different embodiments without departing from the scope of the present invention, and that the description and illustrations therein are illustrative in nature and not limiting. this invention.
[0029] refer to figure 1 , the present embodiment provides an electric wire, which includes: an outer casing 100 (only partly shown in the figure), a downtilt angle display device 2 , a phase shifter 3 and a drive assembly 4 .
[0030] refer to Figure 2 to Figure 11 Further, the downtilt angle display device 2 is used to display the phase stroke of the phase shifting part of the phase shifter 3, especially the downtilt angle display of the large-stroke phase shifter, and the downtilt angle display device 2 includes: a support base 21, a scale screw 22 ...
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The invention provides an electric adjustable antenna and its downtilt angle display device, the downtilt angle display device comprises: a support base, a scale screw and a scale nut; the support base has at least one scale window; the scale screw is rotatably installed on the support base , the outer peripheral ring of one end of the scale screw is provided with at least one circle of scale, and the position of the scale window corresponds to the position of the scale; the outer helix of the scale screw is provided with threads, and the lead of the scale screw is greater than the stroke of the phase-shifting component; the scale nut is screwed on the scale On the screw, the scale nut is driven by the phase shifting part of the phase shifter to move linearly along the axis of the scale screw, so that the scale nut drives the scale screw to rotate around its own axis, so that the scale at different angles is displayed on the scale window of the support seat , The way of autorotation and display reduces the occupation of the installation space, and avoids the risk of breakage or low-temperature freezing caused by the scale sticking out too long in the prior art; at the same time, the display error is effectively eliminated.
Description
technical field [0001] The invention relates to the field of communication equipment, in particular to an electric adjustable antenna and a downtilt angle display device thereof. Background technique [0002] Base station multi-frequency electronically tunable antennas are more and more widely used, and there are more and more functional modules, and the requirements for antenna electrical downtilt accuracy are getting higher and higher. Therefore, phase shifters with large strokes are widely used in antenna design. [0003] In the current large-stroke phase shifter, the scale moves synchronously with the phase shifting part of the phase shifter in the same direction, and the downtilt angle is displayed by the length of the scale protruding from the housing, which leads to the breakage of the protruding scale There is also a risk of freezing due to the low temperature in cold temperatures, and at the same time, a large amount of space is taken up outside the antenna housing ...
Claims
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IPC IPC(8): H01Q3/32G01C1/00
Inventor 邓少锋林勇
Owner MOBILE ANTENNA TECH SHENZHEN