Slow wave structure, microstrip transmission line, integrated feed network and base station antenna

Abstract

The invention relates to the technical field of antennas, in particular to a slow wave structure, a microstrip transmission line, an integrated feed network and a base station antennae, the slow wave structure comprises an impedance matching part, the impedance matching part is provided with a linear part and a bending part in a bilateral symmetry mode, the top of the linear part is provided with a first open-circuit branch, and the first open-circuit branch is perpendicular to the linear part; the side face is opposite to the impedance matching part; one end, connected with the impedance matching part, of the bending part is arranged at the bottom of the linear part and is parallel to the first open-circuit branch, and the other end of the bending part is parallel to the linear part; the straight line parts symmetrically arranged on the impedance matching part left and right form a first slot coupling area; the invention further provides two microstrip transmission lines comprising a plurality of slow wave structures, an integrated feed network and a base station antenna, the slow wave structures are improved, the integrated feed network without a coaxial cable is provided, the material and labor cost is reduced, and the consistency production requirement of the base station antenna with a compact structure is met.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a slow wave structure, a microstrip transmission line, an integrated feed network and a base station antenna. Background technique [0002] At present, in the design of base station antennas, a large number of coaxial cables are used as transmission lines, and phase shifters are connected with radiation units to achieve relevant electrical performance. However, the extensive use of coaxial cables will increase the steps of welding and wiring in the production of base station antennas, which will increase the cost of materials and labor costs in the production of base station antennas, and will also reduce the consistency of product performance during product manufacturing. [0003] Therefore, it is necessary to improve existing base station antennas to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions. ...

AI Technical Summary

Problems solved by technology

However, the extensive use of coaxial cables will increase the steps of welding and wiring in the production of base station antennas, which will increase the cost of materials and labor costs in the production of base station antennas, and will also reduce the consistency of product performance during product manufacturing.

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