Broad-bandwidth balun with polyiron cones and a conductive rod i

Details Broad-bandwidth balun with polyiron cones and a conductive rod i Broad-bandwidth balun with polyiron cones and a conductive rod i

1999-01-29

2000-07-04

Bettendorf, Justin P.

Wave transmission lines and networks

Coupling networks

Balanced to unbalanced circuits

343859, H01P 510

Patent

active

06084485&

ABSTRACT:
The invention provides a balun capable of operation over a range including micro and millimeter wavelengths. The balun includes a set of ferrite beads, and a set of polyiron cones. The ferrite beads and polyiron cones together provide signal balancing operable across a bandwidth together provide a signal balancing operable across a range of bandwidths of about 5000 to 1.

REFERENCES:
Phelan, "A Wide-Band Parallel-Connected Balun," IEEE Transactions on Microwave Theory and Techniques, vol. MTT-18, No. 5, May 1970.
Maas, Stephen A.; "Microwave Mixers", Artech House, Inc., Second Edition 1993, Chapters, 1, 7.1, 8.3 and 10.3.
Marchand, Nathan; "Transmission-Line Conversion", Electronics, vol. 17, Dec. 1944, pp. 142-145.
Cloate, J. H., "Exact Design of the Marchand Balun", Proceedings of the Ninth European Microwave Conference, Sep. 17-120, 1979, pp. 480-484.
Cloate, J. H.; Graphs of Circuit Elements for the Marchand Balun, Microwave Journal, May 1981, pp. 125-128.

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