Planar antenna having a wide operating bandwidth

Details Planar antenna having a wide operating bandwidth Planar antenna having a wide operating bandwidth

2007-09-04

2007-09-04

Vo, Tuyet (Department: 2821)

Communications: radio wave antennas

Antennas

Spiral or helical type

C343S7000MS, C343S845000, C343S846000

Reexamination Certificate

active

11486258

ABSTRACT:
A planar antenna includes a high frequency radiating element, a meandering low frequency radiating element, and an interconnecting element. The low frequency radiating element has an operating bandwidth which is lower than that of the high frequency radiating element. The interconnecting element interconnects the high frequency radiating element and the low frequency radiating element. A feeding point is provided on the high frequency radiating element and is distal from the interconnecting element. A grounding point is provided on either the interconnecting element, or the high frequency radiating element proximate to the interconnecting element.

REFERENCES:
patent: 5926139 (1999-07-01), Korisch
patent: 6738022 (2004-05-01), Klaavo et al.
patent: 6756946 (2004-06-01), Deng et al.
patent: 6980154 (2005-12-01), Vance et al.

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