Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1998-06-26
2000-02-29
Wong, Don
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343725, 343729, H01Q 928
Patent
active
060315059
ABSTRACT:
An RF antenna system is disclosed having at least one meandering antenna line with an aggregate structure formed to substantially extend in two dimensions, to effectively form a top-loaded monopole antenna. The meandering antenna line includes at least one localized bend for providing a compressed effective antenna length in a compact package. The present antenna can be made as an antenna system having discrete transmit and receive antenna lines, so as to form a dual antenna system. The localized bends on each line electromagnetically couple with the respective bends on the other line, thus increasing electromagnetic coupling efficiency, thereby increasing antenna bandwidth and gain.
REFERENCES:
patent: 5841403 (1998-11-01), West
patent: 5903240 (1999-05-01), Kawahata et al.
Bandurska Krystyna
Edmonson Peter J.
Grant Robert A.
Jarmuszewski Perry
Qi Yihong
Meyer, Esq. Charles B.
Nguyen Hoang
Research In Motion Limited
Wong Don
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