Composite network microwave device and antenna

Abstract

The invention provides a composite network microwave device and an antenna. The composite network microwave device comprises a microwave device cavity with a first cavity and a composite microwave network arranged in the microwave device cavity, wherein the composite microwave network includes a first microwave network and at least one second microwave network, the microwave device cavity is internally provided with at least two partition plates, each partition plate is provided with a giving-way groove, and two adjacent partition plates are oppositely arranged and define a second cavity in the first cavity; and the second microwave network is arranged in the second cavity, and the first microwave network is arranged in the first cavity and penetrates into the second cavity from the giving-way groove so as to be intersected and electrically connected with the second microwave network. The second microwave network and the partition plates can form a strip line structure, and the electric field of the second microwave network is distributed in the second cavity defined by the two partition plates, so that the anti-interference ability of the second microwave network can be improved,and thus the signal transmission between composite microwave networks is facilitated.

Description

technical field [0001] The invention relates to the field of microwave communication, in particular to a composite network microwave device and an antenna. Background technique [0002] Microwave devices are the core components of base station antennas. At present, microwave devices commonly used in base station antennas include phase shifters, combiners, power dividers, and filters. [0003] Taking the phase shifter as an example, with the development of mobile communication, the phase shifter plays an important role in the performance of the multi-frequency antenna and the development of miniaturization and light weight. The existing phase shifter mainly includes a cavity, a microwave network circuit arranged in the cavity, a wiring groove arranged on the cavity, and a coaxial cable arranged in the wiring groove and used for signal input and output, wherein the microwave network circuit is generally Printed on the same PCB board, and in order to facilitate the connection ...

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Problems solved by technology

Such a structure, in actual application, is limited by the space of the cavity, and setting the microwave network circuit on the same PCB board is not conducive to wiring, especially when it is necessary to integrate combiners, filters and other components in the phase shifter, it usually needs Increase the size of the phase shifter. Under the development trend of antenna miniaturization and refinement, the miniaturization design of the phase shifter has become an important technical problem to be solved urgently.

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