Method of producing waveguide

Details Method of producing waveguide Method of producing waveguide

1989-07-20

1990-08-14

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

29423, 65 315, 65 32, 65 33, 156257, 156663, 333239, 333240, 333241, 427163, H01P 1100

Patent

active

049475401

ABSTRACT:
In the production of a waveguide, a pipe of a glass which is soluble in an acid or an alkali is used in order to obtain a smooth inner peripheral surface of a reflecting layer of the waveguide. After the reflecting layer is formed on the outer periphery of the pipe, the glass pipe is dipped in an etchant to be dissolved and removed. A reinforcement layer can be applied to the waveguide, and the reinforcement layer is made of a resin in order to keep the flexibility of the waveguide. In this case, the reinforcement layer of a resin is formed on the outer periphery of the reflecting layer on the pipe, and thereafter the pipe is dipped in the etchant and is removed. The waveguide of a circular cross-section can be flatted. In this case, the reinforcement layer made of a thermoplastic resin is heated to be softened, and then a compressive force is applied to the waveguide radially thereof to flatten the waveguide.

REFERENCES:
patent: 3290762 (1966-12-01), Ayuzawa et al.
patent: 3566516 (1971-02-01), Sawada et al.
patent: 3810302 (1974-05-01), Broers et al.
patent: 4115916 (1978-09-01), Meyerhoff

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