Abstract:
Embodiments of the present invention relate to the communications field, and provide a branching tower-mounted amplifier and an antenna feed system, so that a branching tower-mounted amplifier is added on an antenna unit side, thereby implementing a function of a four-port RRU, ensuring network coverage, and improving network performance. The branching tower-mounted amplifier includes a first filter module, a second filter module, a first amplification module, a second amplification module, a control module, a first branching module, and a second branching module.
Abstract:
An embodiment of the present invention provides a scheelite microwave dielectric ceramic material. For example, a structure expression of the scheelite microwave dielectric ceramic material can be Bi(V1-xInx/3Mo2x/3)MoO4. In this embodiment, 0.06≦x≦0.12 An embodiment of the present invention further provides a method for preparing a scheelite microwave dielectric ceramic material.
Abstract:
A near-eye display and a near-eye display system are provided. The near-eye display includes a display panel, a collimation lens component, and an optical redirector. The display panel includes a plurality of pixels that are disposed in a tiling manner. The collimation lens component includes a plurality of collimation lenses, and the plurality of collimation lenses are in a one-to-one correspondence with the plurality of pixels. Each of the plurality of collimation lenses is configured to: convert, into collimated light, light emitted by a corresponding pixel, and input the collimated light into the optical redirector. The optical redirector includes a plurality of light convergence structures, and the plurality of light convergence structures are in a one-to-one correspondence with the plurality of collimation lenses. Each of the plurality of light convergence structures is configured to converge, on a focus of the near-eye display, collimated light input by a corresponding collimation lens.
Abstract:
An embodiment of the present invention provides a scheelite microwave dielectric ceramic material. For example, a structure expression of the scheelite microwave dielectric ceramic material can be Bi(V1-xInx/3Mo2x/3)MoO4. In this embodiment, 0.06≦x≦0.12 An embodiment of the present invention further provides a method for preparing a scheelite microwave dielectric ceramic material.