Feed-in device of monopole antenna as well as relevant analog broadcast playing system and integrating system

Abstract

The invention relates to a feed-in device of a monopole antenna, as well as a relevant analog broadcast playing system and an integrating system, in particular to a feed-in device used for a monopole antenna. The monopole antenna comprises a radiating unit and a grounding unit used for transmitting a multimedia signal to a multimedia playing device coupled to the radiating unit. The feed-in device comprises a first feed-in unit and a second feed-in unit, wherein the first feed-in unit is coupled to an inner lead of a coaxial cable and used for feeding the multimedia signal transmitted throughthe coaxial cable into the radiating unit; and the second feed-in unit is coupled to a net-shaped conductor of the coaxial cable and used for connecting the grounding unit. The feed-in device with the perfect grounding function completely feeds an analog broadcast signal into the analog broadcast playing system in a signal conduction mode, and a user does not need to disassemble the shell or the interior decorations of a vehicle and follow the specification restrictions of the FCC (Federal Communications Commission), i.e. the analog broadcast playing system can be shared to play digital satellite broadcasting program contents.

Description

technical field [0001] The present invention relates to a feed-in device for a monopole antenna and its related analog broadcast playback system and integration system, in particular to a feed-in device for transmitting signals to a monopole antenna using conduction and its related analog broadcast playback system and integrated systems. Background technique [0002] Digital Satellite Broadcasting (Digital Satellite Broadcasting) technology is the third-generation broadcasting after AM and FM broadcasting. It can solve the long-standing problem of difficult access to broadcasting stations through better spectrum utilization efficiency. At the same time, it has CD-like sound quality and The functions of additional data services can also meet people's diversified needs for broadcast media. On the other hand, due to the extremely wide coverage of digital satellite broadcasting, satellite broadcasting signals can still be received even in desolate deserts or vast seas. Therefor...

AI Technical Summary

Problems solved by technology

On the premise of not dismantling the car shell or interior installation, use a coaxial cable 202 with a clamp 204 to replace the monopole antenna 116, and clamp the FM antenna 122 with the clamp 204 to transmit the FM signal S S_FM From the satellite broadcast receiver (satellite broadcast conversion device) 114, it is transmitted to the car FM multimedia device 120. However, the FM antenna 122 usually has an insulator on the outside, and the coaxial cable 202 is still independent of the mesh conductor used for grounding. There is no electrical connection with the grounding part of the FM antenna 122, therefore, this method still has the problem of poor energy conduction feed-in characteristics

[0005] In short, in the known technology, if the multimedia signal of other multimedia devices is to be transmitted to the vehicle multimedia device, the radiation method is easily restricted by the environment, which will easily lead to unstable transmission performance. If you want to connect other signal lines, you must Disassemble the car shell or interior, and change the original wiring configuration. Therefore, a convenient device with good transmission performance is required to solve the above problems

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