Multiple pitch antenna assembly

Details Multiple pitch antenna assembly Multiple pitch antenna assembly

2005-07-26

2005-07-26

Wong, Don (Department: 2821)

Communications: radio wave antennas

Antennas

Spiral or helical type

Reexamination Certificate

active

06922178

ABSTRACT:
A multiple bandwidth antenna assembly including a helical radiator having at least a first helical pitch and a second helical pitch, a core plug having a first axial piece and a second axial piece, and a first recessed pattern configured on the first axial piece to engage at least the first helical pitch and a second recessed pattern configured on the second axial piece to engage at least the second helical pitch.

REFERENCES:
patent: 3617890 (1971-11-01), Kurauchi et al.
patent: 6369775 (2002-04-01), Moore et al.
patent: 2002/0014996 (2002-02-01), Keiten
patent: 2004/0119657 (2004-06-01), Mayer et al.

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