Railway digital train tail loop antenna and manufacturing method thereof

Abstract

The invention provides a railway digital train tail loop antenna and a manufacturing method thereof. The loop antenna comprises a housing, a coil assembly arranged in the housing and a tuning matchingdevice. A silk-covered wire in the coil assembly is wound around the loop outer surface of a loop inner fixation frame to form an inner coil, and is led to and wound around the loop outer surface ofa loop outer fixation frame to form an outer coil. The loop inner fixation frame and the loop outer fixation frame are stacked together and are glued together by a plurality of electrical adhesive tapes to make the inner coil and the outer coil become one body. A start wire of the inner coil of the silk-covered wire is connected with a radio frequency positive end of the tuning matching device; anend wire of the outer coil of the silk-covered wire is connected with a capacitor array in the tuning matching device; and the capacitor array is connected to a radio frequency negative end. Throughdouble-layer multi-strand winding of the silk-covered wire and superposition of inner and outer coils, and through paint dipping processing during manufacturing, the size and volume of the antenna canbe greatly reduced.

Description

technical field [0001] The invention relates to the technical field of railway digital tail-of-row induction communication system, in particular to a railway digital tail-of-row loop antenna and a manufacturing method thereof. Background technique [0002] At present, the length and outer diameter of the antenna used in the induction communication system on the railway at home and abroad are relatively large. For example, the length of the 400KHz station antenna is about 100 meters, and the length of the 400KHz locomotive antenna is about 18 meters. It is limited by the installation environment and safety requirements. These large-size antennas cannot be used by the locomotive station and the main engine at the end of the line in the digital end-of-line induction communication system. Contents of the invention [0003] In order to solve the disadvantages of the above-mentioned prior art, the object of the present invention is to provide a railway digital column tail loop a...

AI Technical Summary

Problems solved by technology

[0002] At present, the length and outer diameter of the antenna used in the induction communication system on the railway at home and abroad are relatively large. For example, the length of the 400KHz station antenna is about 100 meters, and the length of the 400KHz locomotive antenna is about 18 meters. It is limited by the installation environment and safety requirements. These large-size antennas cannot be used by the tail locomotive station and the main engine in the digital tail-of-row induction communication system

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