RF antenna

Details RF antenna RF antenna

2005-02-08

2005-02-08

Chen, Shih-Chao (Department: 2821)

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

C343S793000, C343S810000

Reexamination Certificate

active

06853346

ABSTRACT:
The invention provides an elongate antenna having a radiating portion constituted by an elongate conductor element. The elongate element is machined to include: N dipoles (where N is an integer not less than 2) made up of N rectilinear sections of said element in alignment; and N−1 phase-shifter elements, each phase-shifter element being interposed between two consecutive dipoles, each phase-shifter element having a section of the elongate conductor element folded into a U-shape and having branches which are substantially juxtaposed and which extend in a direction that is orthogonal to the common direction of the dipoles.

REFERENCES:
patent: 2655599 (1953-10-01), Finneburgh, Jr.
patent: 5038151 (1991-08-01), Kaminski
patent: 5087922 (1992-02-01), Tang et al.
patent: 5440317 (1995-08-01), Jalloul et al.
patent: 5917456 (1999-06-01), Teunisse
patent: 6452562 (2002-09-01), Nyhus
patent: 1443900 (1996-05-01), None

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