Cavity-backed, micro-strip dipole antenna array
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United States of America Patent
Stats
-
Sep 1, 1981
Grant Date -
N/A
app pub date -
Apr 30, 1980
filing date -
Apr 30, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A flush-mounted antenna assembly (10) including a generally rectangular, conductive, box structure (11) open along one face to form a cavity. Within the cavity a pair of mutually orthogonal dielectric plane surfaces (13) (14) in an 'egg crate' arrangement are mounted normal to the plane of the open face, each diagonally within the cavity. Each dielectric plane supports a pair of printed circuit dipoles typically (16) each fed from the opposite side of the dielectric plane by a printed 'cone-shaped' feed line trace (15) which also serves as an impedance matching device (19) and functions as a balun connected from an unbalanced strip line external feed (24 and 26). The open face of the conductive cavity can be flush mounted with a randome thereover, the assembly thereby being flush with the skin of a aircraft or space vehicle.
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