Dual range antenna

Details Dual range antenna Dual range antenna

2006-08-08

2006-08-08

Nguyen, Hoang V. (Department: 2821)

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

C343S726000

Reexamination Certificate

active

07088305

ABSTRACT:
An antenna system that for use in both high density areas and rural areas while still obtaining acceptable reception in both locations. The antenna system includes a switching mechanism that permits the user to select between a lower gain range, appropriate for high density areas, and a higher gain range, which is more conducive to rural areas where UHF and VHF signals tend to be the weakest. This system provides the user with greater utility and performance and broader compatibility with television markets of varying sizes.

REFERENCES:
patent: 3522608 (1970-08-01), Von Fange
patent: 3739388 (1973-06-01), Callaghan
patent: 4864632 (1989-09-01), Moriyama et al.
patent: 6965353 (2005-11-01), Shirosaka et al.
patent: 2003/0090423 (2003-05-01), Horii
patent: 2004/0207561 (2004-10-01), Wang
Malester, Jeff, “Antennas Advance Into The Digital Age”,TWICE, Aug. 8, 2005, 3 pages.

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