Multi-frequency electrically tunable antenna and phase shifting device
A technology of phase shifting and moving parts, applied in the direction of antennas, electrical components, etc., can solve the problems of mutual interference between driving gears and transmission gears, and achieve the effect of reducing size and volume
Pending Publication Date: 2022-04-08
COMBA TELECOM TECH (GUANGZHOU) CO LTD +1
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[0003] Based on this, it is necessary to provide a multi-frequency electric adjustable antenna and a phase shifting device for the problem that the driving gear and the transmission gear are susceptible to mutual interference
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[0030] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.
[0031] Such as figure 1 As shown, in one embodiment, a phase shifting device 10 is provided, including a driving mechanism 100 , a phase shifting mechanism 200 and a moving mechanism 300 .
[0032] Such as figure 1 and figure 2 As shown, wherein, the driving mechanism 100 includes at ...
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The invention relates to a multi-frequency electrically-tunable antenna and a phase shifting device, and the phase shifting device is characterized in that at least two driving gears and at least two transmission screws are arranged in a one-to-one correspondence manner along the longitudinal direction, and the correspondingly arranged driving gears and transmission screws are arranged at intervals along the axial direction of the transmission screws; the central axes of the driving gears arranged at intervals in the axial direction of the transmission screw rod are collinear with the central axis of the transmission screw rod, so that the central axes of all the driving gears and the central axes of all the transmission screw rods are coplanar, the size of the phase shifting device in the height direction is reduced, and the size of the phase shifting device is reduced. Besides, the driving gear is not directly meshed with the transmission gear and transmits power through the moving mechanism, so that the driving gear and the transmission screw can be independently arranged side by side and do not influence each other, and rotation of the driving gear and the transmission screw can be better controlled.
Description
technical field [0001] The invention relates to the technical field of mobile communication, in particular to a multi-frequency electric adjustable antenna and a phase shifting device. Background technique [0002] In order to adjust the downtilt angle of the multi-frequency electronically adjustable antenna, it is usually necessary to drive the phase shifter to move by means of a phase shifter. In the traditional phase shifting device, the driving gear moves under the drive of the driving mechanism, so that the driving gear is connected to the driving gears on different driving screws, and then the driving nut on the driving screw moves to drive the phase shifter to move. The driving gear and transmission gear of the traditional phase shifting device are susceptible to mutual interference. Contents of the invention [0003] Based on this, it is necessary to provide a multi-frequency electric adjustable antenna and a phase shifting device for the problem that the driving ...
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IPC IPC(8): H01Q3/32
Inventor 何海雁潘培锋肖飞
Owner COMBA TELECOM TECH (GUANGZHOU) CO LTD