Multiband antennas and devices

Details Multiband antennas and devices Multiband antennas and devices

2011-06-21

2011-06-21

Le, HoangAnh T (Department: 2821)

Communications: radio wave antennas

Antennas

With vehicle

C343S711000

Reexamination Certificate

active

07965247

ABSTRACT:
An apparatus includes an antenna (e.g., a monopole), a first load, and a second load. The antenna, which extends substantially along an axis, has a first end and a second end. The first load is coupled to the antenna at the first end, while the second load is coupled to the antenna between the first end and the second end. Both the first and second loads are symmetrical with reference to the axis. The apparatus is arranged to operate in at least two frequency bands, such as the AMPS band from about 824 MHz to 894 MHz and the PCS band from about 1850 MHz to 1990 MHz.

REFERENCES:
patent: 4821040 (1989-04-01), Johnson et al.
patent: 5999132 (1999-12-01), Kitchener et al.
patent: 6809698 (2004-10-01), Tsai et al.
patent: 7253770 (2007-08-01), Yegin et al.
patent: 7683843 (2010-03-01), Laubner et al.
patent: WO98/58422 (1998-12-01), None

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