Dielectric loaded horn antennas having improved radiation charac

Details Dielectric loaded horn antennas having improved radiation charac Dielectric loaded horn antennas having improved radiation charac

1981-10-26

1984-05-08

Lieberman, Eli

Communications: radio wave antennas

Antennas

Wave guide type

343786, H01Q 1302

Patent

active

044478119

ABSTRACT:
An H-plane sectoral horn antenna is loaded with low-loss dielectric inserts n alternative embodiments so as to reduce beamwidth, increase axial gain and to achieve non-mechanical beam scanning. In one embodiment, the antenna is transversely loaded with a multi-layer dielectric array containing an air gap of critical thickness between four dielectric strips. In another embodiment, the antenna is longitudinally and symmetrically loaded with wedge-shaped dielectric strips separated by a critical air gap between the dielectric and antenna walls.

REFERENCES:
patent: 2460401 (1949-02-01), Southworth
patent: 2577463 (1951-12-01), Hansell
patent: 3611392 (1971-10-01), Knox

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