A kind of multilayer rectangular waveguide antenna feeding structure
A rectangular waveguide and antenna feeding technology, applied in linear waveguide feeding arrays, antennas, antenna arrays, etc., can solve the problems of low profile, low conductor loss, high power capacity, etc., and achieve low profile, easy processing, and high power Effect
Active Publication Date: 2022-07-05
ZHEJIANG UNIV +1
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[0006] Array antenna feed networks designed using waveguide technology are known to have lower conductor losses, higher power handling, and at the same time lower profile
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[0034]Since the present invention works in the microwave and millimeter wave frequency band, the influence of the loss of the transmission line needs to be considered in the design process, so the waveguide structure is used as the main structure of the transmission line for design. In a certain frequency band, when the frequency remains unchanged, different waveguide heights will lead to different propagation constants and different waveguide characteristic impedances. Therefore, we can design an equal power divider with lower loss and a different waveguide height by changing the waveguide height. Equal power divider, which forms the power distribution structure of the E-plane rectangular waveguide we show. At the same time, since the antenna gain increases with the increase of the antenna output aperture, multiple E-plane rectangular waveguide power distribution structures can be stacked back and forth, and each layer can correspond to a radiating element of a linear array, f...
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The invention discloses a multi-layer rectangular waveguide antenna feeding structure, which comprises: a rectangular waveguide-parallel plate waveguide broadside discretization structure and an E-plane rectangular waveguide power distribution structure; a rectangular waveguide-parallel plate waveguide broadside discretization structure It is used for the discretization of planar electromagnetic waves in the direction of the broad side of the parallel-plate waveguide, including the parallel-plate waveguide structure, metal partitions and multiple output ports; the end of the parallel-plate waveguide structure is provided with a matching structure and several equally spaced metal partitions , the upper surface of the waveguide corresponding to the center position between the adjacent metal partitions is provided with various output ports; the input port of the E-plane rectangular waveguide power distribution structure is connected to the output port of each rectangular waveguide-parallel waveguide broadside discretization structure, which is used for Uniform or non-uniform distribution of energy in the propagation direction of the E-plane rectangular waveguide. The invention has the advantages of simple structure, easy processing, high power, low side lobes, and configurable gain, and can be used for feeding the CTS antenna.
Description
technical field [0001] The present invention relates to the technical field of antennas and antenna feeds, and in particular to flat panel antennas for mobile and aviation applications. Background technique [0002] With the development of wireless communication technology, the demand for wireless broadband channels for high-speed data transmission is increasing. Especially in the field of mobile satellite communication, there is a lack of antennas that can meet the requirements of mobile use, specifically, high gain, small size, and light weight. 's antenna. The continuous growth of high-throughput communication requirements makes millimeter waves widely used in modern wireless communication systems. The frequency range of millimeter waves is between 30 and 300, with a total bandwidth of about 250. Compared with microwave systems, millimeter wave not only has the advantages of all-weather, but also can provide a wider range of available spectrum resources and a more compac...
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IPC IPC(8): H01Q21/06H01Q21/00H01Q1/00H01Q1/28
CPCH01Q21/064H01Q21/0037H01Q1/002H01Q1/288
Inventor 吴锡东冀俊超杨喆栋周金芳
Owner ZHEJIANG UNIV