Method of manufacturing a conical spiral antenna

H - Electricity – 01 – Q

Patent

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26/112, 351/45

H01Q 11/04 (2006.01) H01Q 11/08 (2006.01) H05K 1/00 (2006.01) H05K 1/16 (2006.01)

Patent

CA 1249367

ABSTRACT OF THE DISCLOSURE A photoresist-type chemical etching process is used to define a computer-generated flat pattern of conductors as if a complex conical spiral had been cut apart along a straight line through the apex and laid flat. The substrate in the shape of a circular sector is bent into a cone and the radial edges are joined in a seam. The split turns of the spiral are electrically interconnected across the seam.

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