Broadband ferrite loaded loop antenna

Details Broadband ferrite loaded loop antenna Broadband ferrite loaded loop antenna

2008-08-28

2010-06-15

Nguyen, Hoang V (Department: 2821)

Communications: radio wave antennas

Antennas

Including magnetic material

C343S787000

Reexamination Certificate

active

07737905

ABSTRACT:
A ferrite-loaded broadband loop antenna having nearly comparable transmit/receive characteristics is disclosed. The antenna contains a low loss ferrite core having a width-to-height ratio of approximately 24 and a depth-to-height ratio of approximately 6, and an antenna feed plate assembly centered about the long axis of the ferrite core, having a width-to-height ratio of approximately 6 and a width-to-depth ratio of approximately 1, and a balanced feed located at the center of the antenna feed plate assembly, positioned on the radiating side of the antenna, and a low loss center element in the ferrite core, the center element having at least one of a loss tangent and a permeability that is lower than the ferrite core, and a grounding surface coupled to the antenna feed plates.

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patent: 5561438 (1996-10-01), Nakazawa et al.
patent: 5933117 (1999-08-01), Gerhard

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