Title:
RADAR ANTENNA
Document Type and Number:
Japanese Patent JP2007081856
Kind Code:
A
Abstract:
To provide a radar antenna capable of suppressing undesirable radiation and satisfying spurious specifications, by using the rotary joint of a pedestal portion without requiring a space for installing a filter.
A spurious suppression filter (LPF) is formed in a coaxial tube on the center axis of the rotary joint. Moreover, by providing an insulator between an outer conductor and a center conductor in at least a portion of the coaxial tube where the spurious suppression filter is formed, it becomes possible to make a large power transmittable without causing a discharge between the outer conductor and the center conductor.
Inventors:
YOSHIDA GORO
YAMAGATA JUNJI
SAITO TOSHIHIRO
YAMAGATA JUNJI
SAITO TOSHIHIRO
Application Number:
JP2005267327A
Publication Date:
March 29, 2007
Filing Date:
September 14, 2005
Export Citation:
Assignee:
JAPAN RADIO CO LTD
International Classes:
H01Q3/04; G01S7/03; H01P1/202
Attorney, Agent or Firm:
Makoto Monda
Terumi Hemi
Terumi Hemi
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