An electric adjustable antenna
A technology of electronically adjustable antennas and antenna arrays, which is applied in the field of communication, and can solve problems such as the inability to realize independent electrical adjustment and the inability to realize independent wireless signal electrical adjustment.
Active Publication Date: 2018-12-04
CHINA MOBILE GROUP DESIGN INST
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Problems solved by technology
[0011] 2. It is impossible to realize the independent ESC of the wireless signals of the two systems A and B
[0014] At present, in the first and fourth methods, only one signal is input to the antenna, and the existing technology cannot realize independent ESC
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[0041] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.
[0042] Such as Figure 5 As shown, the base station system in the prior art is composed of a baseband unit and a radio frequency unit. The base station is connected to the antenna, and receives and transmits mobile communication signals through the antenna. The beam downtilt of the antenna is an important parameter of the antenna. By adjusting the beam downtilt of the antenna Tilt can adjust the coverage of the base station system. According to the different methods of antenna downtilt, the antennas connected to the base station can be divided into: mechanical downtilt antennas, preset electronic downtilt antennas and electronically adjustable antennas.
[0043] Embodiments of the present invention provide an electronically adjustable antenna, which can...
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The present invention provides an electrically tilting antenna, relates to the field of communication, and solves the problem that the antenna designs are not perfect in the prior art. The electrically tilting antenna comprises: a phase shifting unit for sending a received signal after adjusting the signal in a preset phase; and at least one antenna array connected with the phase shifting unit and used for receiving and transmitting the signal sent from the phase shifting unit. The electrically tilting antenna further comprises: a signal splitting and combining unit connected with a base station and the phase shifting unit and used for splitting a double-system signal sent from the base station into two single-system signals and sending the two single-system signals to the phase shifting unit. The scheme in the present invention not only supports two systems to share one base station equipment of a radio-frequency unit, but also enables independent electrical tilting for two system signals.
Description
technical field [0001] The invention relates to the field of communications, in particular to an electrically adjustable antenna. Background technique [0002] There are four main technical implementation schemes for existing multi-system shared antennas: [0003] Existing technical scheme one: if figure 1 As shown, the two base station systems A and B are connected to the dual-band antenna through the same antenna interface after being combined by an external combiner, and the wireless signals of the two systems are transmitted through the same antenna beam. [0004] Existing technical scheme two: such as figure 2 As shown, the two base station systems A and B are connected to the dual-frequency antenna through different interfaces of the same antenna. The signals are not combined internally and externally, and the wireless signals of the two systems are transmitted through different antenna beams. . [0005] Existing technical scheme three: such as image 3 As shown,...
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IPC IPC(8): H04B7/04
Inventor 陈亮陈儒尹萍唐飞雄薛峰宫晓强
Owner CHINA MOBILE GROUP DESIGN INST