Parallel waveguide slot coupler with reactive buffering region

Details Parallel waveguide slot coupler with reactive buffering region Parallel waveguide slot coupler with reactive buffering region

2006-04-25

2009-08-18

Wimer, Michael C (Department: 2821)

Communications: radio wave antennas

Antennas

Slot type

C343S778000

Reexamination Certificate

active

07576703

ABSTRACT:
The present invention is a frequency scanned waveguide antenna including a plurality of radiating waveguides configured as a flat plate array, each radiating waveguide including an enclosure having a front wall and a back wall opposite the front wall, the front wall including a slot configured for radiating and receiving an electromagnetic signal. The antenna further includes a sinuous feed waveguide coupled to each waveguide included in the plurality of radiating waveguides via a slot coupling mechanism, the sinuous feed waveguide including an enclosure having a front wall and a back wall opposite the front wall, the front wall of the sinuous feed waveguide being oriented towards the back walls of the plurality of radiating waveguides, the front wall of the sinuous feed waveguide further including a plurality of slot couplers, the slot couplers each configured for feeding an electromagnetic signal to the plurality of radiating waveguides via a plurality of corresponding feed slots formed by the back walls of the plurality of radiating waveguides. The antenna further includes a reactive buffering region coupled between the flat plate array and the front wall of the sinuous feed waveguide. The sinuous feed waveguide and the plurality of radiating waveguides are oriented as parallel waveguides.

REFERENCES:
patent: 3701162 (1972-10-01), Seaton
patent: 4429313 (1984-01-01), Muhs et al.

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