Fabrication method of cylindrical dielectric-loaded antenna by means of laser etching
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Department of Information Science & Electronic Engineering, Zhejiang University, Hangzhou 310027, China
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Corresponding author:
WANG Demiao, iseewdm@zju.edu.cn
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Received Date:
2013-07-10
Accepted Date:
2013-08-30
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Abstract
Cylindrical dielectric-loaded quadrifilar helix antenna is an ideal choice for small satellite antenna owing to its advantages of wide beam, circular polarization and small volume. In order to solve the difficulty of the manufacture of dielectric-loaded quadrifilar helix antenna, a novel manufacture method combing magnetron sputtering metallization and laser etching was introduced. Computer control system with laser etching technology was used to produce three-dimensional quadrifilar helix structure, which is suitable for small satellite systems. The novel process can greatly improve the machining accuracy and shorten the processing cycle compared with traditional process. The results show that the manufactured antenna has good electrical performance, which meets the design requirements of a small satellite system, as well as good mechanical properties. It offers a method of manufacture of the cylindrical conformal antenna.
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