Radiation-emitting cable and a radiation-emitting element comprised therein
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- VERITEL
- Publication Date
- 2010-04-21
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The present invention relates to a radio device that can be used as a radiating element in an antenna system or as a distributed antenna feeder system for wireless access to various types of radio communications. Background technique
[0002] Various types of radiating coaxial cables, known in the art, combine the properties of a radio transmission line and a long antenna. In these devices the tapping and radiating functions are performed through openings (slots) or groups of openings made in the outer conductor of the coaxial section (WO, A, 9917401), (RU , A, 2231180).
[0003] Radiating cables are used in various tunnels on highways and railways, in tunnels, in underground structures such as multi-storey car parks, underground parts of large buildings, and even behind large multi-storey buildings made of reinforced concrete. In venues, they are designed to eliminate "dead zones" or shadow areas for radio communications.
[0004] The cheapest and ...