Current balanced balun network with selectable port impedances

Details Current balanced balun network with selectable port impedances Current balanced balun network with selectable port impedances

1997-05-07

1999-01-19

Ham, Seungsook

Communications: radio wave antennas

Antennas

With radio cabinet

343859, 333 26, 333 25, H01Q 124, H01P 510

Patent

active

058618538

ABSTRACT:
A half-wave balun network balanced for at least current is provided by a conductor section having contiguous conductor portions 130 and 140. A balanced port 110 is provided between ends of the conductor section. An unbalanced port 120 is provided between one end of the conductor section and a ground plane 107. A difference between impedances of the contiguous conductor portions 130 and 140 of the half-wave balun network provides for a selectable impedance ratio between the port impedances of the balanced and unbalanced ports 110 and 120. In one embodiment the number of different impedance conductor portions approaches infinity, thereby providing a tapered conductor section.

REFERENCES:
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patent: 5565881 (1996-10-01), Phillips et al.
patent: 5628057 (1997-05-01), Phillips et al.
patent: 5705960 (1998-01-01), Izumiyama

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