Phase adjustment device and multi-frequency antenna
A phase adjustment and driving device technology, which is applied in the field of communication, can solve the problems of rising cost of multi-frequency antennas and high cost of a single driving device, and achieve the effect of reducing costs and reducing the number of uses
Active Publication Date: 2014-12-24
HUAWEI TECH CO LTD
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Problems solved by technology
[0006] Since there is a driving device corresponding to each phase adjustment unit, the more frequency bands included in the multi-frequency antenna, the more driving devices need to be used, and the cost of a single driving device is higher, so the cost of the multi-frequency antenna will inevitably be increased. the rise of
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[0020] The phase adjustment device and the multi-frequency antenna according to the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0021] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0022] An embodiment of the present invention provides a phase adjustment device. The phase adjustment device includes at least two phase adjustment units, a switching device, and a drive device; the at least two phase adjustment units are used to adjust the phase; the drive device uses to drive the at least two phase adjustment units to move; the at least two phase adjustment units are selectively connected to the driving device; the switching...
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The present invention discloses a phase adjustment apparatus. The phase adjustment apparatus includes at least two phase adjustment units, a switching apparatus, and a driving apparatus; where the at least two phase adjustment units are configured to modulate a phase; the driving apparatus is configured to drive the at least two phase adjustment units to move; the at least two phase adjustment units are selectively connected to the driving apparatus; and the switching apparatus is configured to select the at least two phase adjustment units, so that the driving apparatus drives, at a same moment, only one of the at least two phase adjustment units connected to the driving apparatus to move, so as to change a phase. The present invention further discloses a multi-frequency antenna, where the multi-frequency antenna applies the phase adjustment apparatus. The phase adjustment apparatus of the present invention may adjust a downtilt angle of an antenna unit in the multi-frequency antenna.
Description
technical field [0001] The invention relates to the technical field of communication, in particular to a phase adjustment device and a multi-frequency antenna. Background technique [0002] In the field of communication technology, signals are received and transmitted by means of antennas. Generally speaking, the antenna has a certain coverage area. When installing the antenna, it is necessary to make the coverage area of the antenna itself coincide with the area designed by people. For this reason, the coverage area of the antenna itself can be adjusted by adjusting the downtilt angle of the antenna. The so-called downtilt angle of the antenna is also called the antenna pitch angle, which is the angle between the antenna and the horizontal direction. [0003] Usually, the adjustment of antenna downtilt can be realized through mechanical downtilt and electrical downtilt. Mechanical downtilt is physically tilting the antenna downward. However, construction and maintena...
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IPC IPC(8): H01Q3/32H01Q21/30
CPCH01Q1/246H01Q5/0024H01P1/184H01Q3/32H01Q3/30H03H1/00H01Q5/20
Inventor谢寿波赵黎明赵志雄李茂斌
OwnerHUAWEI TECH CO LTD