Tab coupled slots for waveguide fed slot array antennas

Details Tab coupled slots for waveguide fed slot array antennas Tab coupled slots for waveguide fed slot array antennas

1992-09-28

1994-02-22

Wimer, Michael C.

Communications: radio wave antennas

Antennas

Slot type

343767, H01Q 1310

Patent

active

052892000

ABSTRACT:
A shunt coupled array of slots in a waveguide broadwall, wherein the slots are defined by a punch operation which leaves a tab connected at one side of the slot. The slot side to which the tabs are connected is alternated. The tabs extend downwardly into the waveguide and provide a means for exciting the slots without requiring the longitudinal slots to be alternatively offset. Thus, the invention provides a method of fabrication which permits elimination of the slot offsets, while at the same time is lower in cost than conventional methods of creating slot openings arrays. Higher antenna gain results from a given aperture when slot offsets are eliminated and the slots are truly located along straight lines in rows and columns.

REFERENCES:
patent: 4788552 (1988-11-01), Karlsson
patent: 4839662 (1989-06-01), Wood
patent: 4878060 (1989-10-01), Barbier et al.

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