Multi-beam antenna feeding device and method
A technology of a multi-beam antenna and a feeding device, applied in the field of communication, can solve the problems of poor anti-interference performance of the antenna system, difficult to adjust the radiation direction of the antenna array beam according to actual needs, etc., achieve flexible selection, realize phase difference output, flexible phase The effect of poor output
Active Publication Date: 2020-11-20
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology
However, the output phase difference is fixed, which makes it difficult to adjust the radiation direction of the antenna array beam according to actual needs, and the anti-interference performance of the antenna system is poor
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[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0039] In the first aspect, an embodiment of the present invention provides a multi-beam antenna feeding device, see figure 1 , the device includes two input coupler modules A1, A2, two output coupler modules B1, B2, four input ports P1, P2, P3, P4, and four output ports P5, P6, P7, P8;
[0040] Each input coupler module and each output coupler module respectively include two inlets and two outlets, the inlets of each input coupler module are respectively conn...
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The embodiment of the invention provides a multi-beam antenna feeding device and method. The device comprises two input coupler modules, two output coupler modules, four input ports and four output ports, wherein each coupler module comprises two inlets and two outlets, the inlet of each input coupler module is connected to each input port, the outlet of each output coupler module is connected toeach output port, and the outlet of the input coupler module is connected with the inlet of the output coupler module; each coupler module comprises a plurality of sub-couplers with different phase differences and a selection switch, and the selection switch is used for selecting one sub-coupler to be connected with the port and other coupler modules. By applying the device and the method providedby the invention, the combination of the sub-input couplers and the sub-output couplers with different phase differences can be selected through the selection switch according to actual requirements,different output phase differences can be obtained, flexible phase difference output is realized, and flexible selection is provided for the beam radiation direction.
Description
technical field [0001] The invention relates to the field of communication technology, in particular to a multi-beam antenna feeding device and method. Background technique [0002] The multi-beam antenna can form multiple beam directions at the same time to cover a specific airspace. The multi-beam antenna receives the signal transmitted by a certain device and radiates the signal to other devices in the form of electromagnetic waves to complete the transmission of signals between devices in the airspace. It has been widely used in military and civilian fields. For example, multi-beam antennas are used in the construction of space-ground integrated information network, drone reconnaissance, and battlefield broadcast system construction. [0003] There are many existing multi-beam antenna feeding devices, such as Blass matrix, Rotman lens, Nolen moment and Butler matrix. Due to its relatively simple structure and low power consumption, Butler matrix is a commonly used devi...
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IPC IPC(8): H01Q1/50H01Q3/34
CPCH01Q1/50H01Q3/34
Inventor 韩可李务雨王钰程刘义彬
Owner BEIJING UNIV OF POSTS & TELECOMM