Linear conformal antenna array for scanning near end-fire in one

Details Linear conformal antenna array for scanning near end-fire in one Linear conformal antenna array for scanning near end-fire in one

1991-05-16

1994-10-25

Blum, Theodore M.

Communications: radio wave antennas

Antennas

Wave guide type

343754, 343786, H01Q 1300

Patent

active

053593383

ABSTRACT:
A linear conformal array antenna consisting of double-ridged waveguide elements which are all tapered in the E-plane or the H-plane. The array of waveguide elements is fed by a Gent lens whose amplitude and phase characteristics can be adjusted to cause the waveguide element array to produce a desired radiation pattern. The linear array antenna, which has been tapered in the E-plane, can be operated to scan an electromagnetic endfire beam in one predetermined direction with a maximum scan loss of 3 dB. The array of waveguide elements can be substantially conformal with the fuselage of an airborne craft carrying the linear array antenna, thereby reducing aerodynamic drag and radar cross section. The linear array antenna has a bandwidth that is greater than an octave wide.

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