Communications: radio wave antennas – Antennas – Slot type
Patent
1995-12-29
1996-11-26
Hajec, Donald T.
Communications: radio wave antennas
Antennas
Slot type
343770, H01A 1310
Patent
active
055790194
ABSTRACT:
A slotted leaky waveguide array antenna of a one-axis tracking type wherein a feed section including a feed probe is kept in a stationary state to thereby keep a converter in a stationary state and a desired beam width is set in a tilt direction, includes a plurality of radiation waveguides arranged adjacent and parallel to each other, each of which has a plurality of slots arranged in a waveguide axial direction, and a feed waveguide for distributing to the respective radiation waveguides electromagnetic waves received through a feed section from a converter, and the antenna rotates in a substantially horizontal plane to track an azimuth direction, wherein the feed waveguide has a first section extended along one ends of the radiation waveguides and a second section extended from the feed section provided in the rotary center of the slotted leaky waveguide array antenna to the center of the first section, and wherein the radiation waveguides are formed with crossed slots having an identical offset, and the number of the crossed slots is preferably selected between 13 and 17.
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Ando Makoto
Goto Naohisa
Hirokawa Jiro
Ojima Takashi
Takahashi Nobuharu
Goto Naohisa
Hajec Donald T.
Nippon Steel Corporation
Phan Tho
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