Title:
UNIDIRECTIONAL VORTEX ANTENNA
Document Type and Number:
Japanese Patent JPS5352339
Kind Code:
A
Abstract:
The radiation absorber system of a unidirectional spiral antenna is provided with a laterally transverse variable radiation absorption density characteristic to control the absolute gain with frequency pattern, i.e. absolute gain versus frequency characteristic, of the antenna.
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Inventors:
JIYON MIKAERU SHIYUMITSUTO
UORESU REON SUNOU
UORESU REON SUNOU
Application Number:
JP7727477A
Publication Date:
May 12, 1978
Filing Date:
June 30, 1977
Export Citation:
Assignee:
IBM
International Classes:
H05K9/00; H01Q9/27; H01Q11/04; (IPC1-7): H01Q11/02; H01Q17/00; H05K9/00