Waveguide with non-inclined radiating slots excited by flat meta

Details Waveguide with non-inclined radiating slots excited by flat meta Waveguide with non-inclined radiating slots excited by flat meta

1992-12-15

1995-06-06

Wimer, Michael C.

Communications: radio wave antennas

Antennas

Slot type

H01Q 1310

Patent

active

054226520

ABSTRACT:
In a waveguide (1) having slots (2, 3) perpendicular to the axis of the waveguide, cut out in a narrow wall of the waveguide, there are positioned, on each side of each slot, pairs of metal flat plates (21, 22; 31, 32) symmetrical with respect to the central axis of the slot. These flat plates modify the electrical field at the associated slot and make it possible to excite it, the value of the coupling being set by the adjusting of the size of the flat plates and of their position with respect to the corresponding radiating slot.

REFERENCES:
patent: 2574433 (1951-11-01), Clapp
patent: 2818565 (1957-12-01), Ajioka et al.
patent: 3004259 (1961-10-01), Shanks et al.
A. J. Sangster, "New Slotted-waveguide antenna element for low-side lobe arrays." Int'l Jnl of Electronics, vol. 68, No. 6, Jun. 1990, London, GB, pp. 1075-1088.

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