Antenna

Details Antenna Antenna

2006-12-12

2006-12-12

Ramakrishnaiah, Melur (Department: 2614)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S552100, C455S575700

Reexamination Certificate

active

07149540

ABSTRACT:
An antenna comprising a first resonator element (260) for coupling to an antenna feed (264) ; a second resonator element (262) for coupling to ground; the first and second resonator elements arranged to allow field coupling between the first and second resonator elements such that at a first frequency the first and second resonator elements co-operate to allow operation of the first and second resonator elements in a first mode wherein the direction of current flow in one resonator element is different from the direction of current flow in the other resonator element and at a second frequency the first and second resonator elements co-operate to allow operation of the first and second resonator elements in a second mode wherein the direction of current flow in one resonator element is substantially the same as the direction of current flow in the other resonator element.

REFERENCES:
patent: 5880697 (1999-03-01), McCarrick et al.
patent: 5903822 (1999-05-01), Sekine et al.
patent: 0777295 (1997-06-01), None
patent: 99/43043 (1999-08-01), None
European Search Report.

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