Resonant balun with arbitrary impedance

Details Resonant balun with arbitrary impedance Resonant balun with arbitrary impedance

1993-12-03

1995-05-02

Gensler, Paul

Wave transmission lines and networks

Plural channel systems

Having branched circuits

333 25, 333 32, H03H 742, H03H 748

Patent

active

054123550

ABSTRACT:
A balun circuit comprising a first signal source connected across a first inductive means and connected to the latter a first capacitive means. To that network are connected a second signal source, a second inductive means, and a load to be matched to the signal sources. With the right choice of component values to produce a resonant condition, a balun that interfaces two balanced signal sources to an unbalanced single-ended load results capable of low insertion loss, arbitrary impedance transformation ratio, testability in the form of a 50 ohm port for in-circuit power monitoring and circuit characterization, class E operation, and easy implementation, as only standard L and C components are necessary. The circuit is reversible for connecting a single source to a balanced load.

REFERENCES:
patent: 2165086 (1939-07-01), Alford
patent: 2196673 (1940-04-01), Gutzmann
patent: 2630558 (1953-03-01), Arsem et al.
patent: 3132313 (1964-05-01), Alford
patent: 3146409 (1964-08-01), Lalmond
patent: 4945317 (1990-07-01), Sato et al.

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