Unbalanced-to-balanced converter

Details Unbalanced-to-balanced converter Unbalanced-to-balanced converter

1997-11-25

2000-03-21

Pascal, Robert

Wave transmission lines and networks

Coupling networks

Balanced to unbalanced circuits

333 25, H03H 742

Patent

active

06040745&

ABSTRACT:
An unbalanced-to-balanced converter (balun) comprising three distributed-constant lines. In one distributed-constant line, a standing wave is generated. Disposed adjacent thereto is another distributed-constant line to which the power of the standing wave is transferred. A signal input to the unbalanced-to-balanced converter is divided into two signals having phases 180 degrees apart and the same level.

REFERENCES:
patent: 3114120 (1963-12-01), Heck
patent: 3217274 (1965-11-01), Alford
patent: 4739289 (1988-04-01), Cripps
N. Nagai et al.: "Application of Distributed-Constant Network Theory to Balun Transformers" Electronics and Communications in Japan, vol. 50, No. 5, May 1967, New York, U.S., pp. 114-121, XP002056295.
Patent Abstracts of Japan, vol. 14, No. 457 (E-986) Oct. 2, 1990 & JP 02 184104 A (NEC Corp.) Jul. 18, 1990.
European Search Report dated Mar. 4, 1998.

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