Ring-slot radiator for broad-band operation

Details Ring-slot radiator for broad-band operation Ring-slot radiator for broad-band operation

2011-07-26

2011-07-26

Duong, Dieu H (Department: 2821)

Communications: radio wave antennas

Antennas

Slot type

C343S767000, C343S70000R

Reexamination Certificate

active

07986279

ABSTRACT:
One embodiment is a ring-slot radiator having: at least one radiating element having a characteristic of dual resonance, double-tuned in which an open ended strip and a cavity are structured to resonate at at least two different frequencies. Another embodiment may have: a ring-slot structure having at least one ring-slot opening on an infinite ground plane that forms a radiating element; a probe-fed strip structure that excites the slot; another ground plane underneath the strip; and a plurality of suppression elements around the ring slot to suppress parallel plate and surface wave modes.

REFERENCES:
patent: 4929959 (1990-05-01), Sorbello et al.
patent: 5539420 (1996-07-01), Dusseux et al.
patent: 6020852 (2000-02-01), Jostell
patent: 2004/0113840 (2004-06-01), Gottwald et al.
patent: 2007/0080864 (2007-04-01), Channabasappa
patent: 2007/0205945 (2007-09-01), Tatarnikov et al.
patent: 2006033652 (2006-02-01), None
patent: 2006033652 (2006-02-01), None

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