Communications: radio wave antennas – Antennas – Slot type
Patent
1982-02-22
1984-12-11
Lieberman, Eli
Communications: radio wave antennas
Antennas
Slot type
343785, H01Q 1310
Patent
active
044881576
ABSTRACT:
Described is an antenna structure which reduces the side lobe level of a slot array antenna of the type using a dielectric plate as a director mechanism. A slot radiator is mounted on the vertical side of a member composed of metal plates and having a C-shaped side sectional shape, and a pair of parallel dielectric plates are projected to extend in the direction of the open end of the C-shaped member. Also, a pair of metal pent roof plates are provided to spread upwardly and downwardly from the open end edges of the C-shaped member on the outer side of the dielectric plates. The metal pent roof plates serve as reflecting plates for the radiation power from the slot radiator and thus the side lobe level is reduced to a practical low level.
REFERENCES:
patent: 2730717 (1956-01-01), Katchky et al.
patent: 3039097 (1962-06-01), Strumwasser et al.
patent: 3146449 (1964-08-01), Serge et al.
patent: 3234558 (1966-02-01), Borgiotti
patent: 3496568 (1970-02-01), Palumbo et al.
Akaba Noriyuki
Terakawa Takashige
Lieberman Eli
Tokyo Keiki Company Limited
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