FIELD: antenna engineering. SUBSTANCE: antenna has relatively perpendicular slits closed on one end with cross-shaped cavity, four separate dipoles feeding in pairs in phase of each half of slot, and power circuit. In order to form directivity pattern zero in desired direction, central part of relatively perpendicular rectangular slits formed at their intersection is closed with metal screen; electric monopole fed in phase quadrature relative to four separate dipoles is installed in center of metal screen perpendicular to locating plane of rectangular slits; electrical dimension Lmx,Lmy<Lz of rectangular slits and electric monopole at desired current distribution and direction θo,Φo should meet set of equations given in description of invention. EFFECT: improved noise immunity. 2 dwg, 1 tbl
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Authors
Dates
1997-12-10—Published
1994-04-13—Filed