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US 5,296,823 AGranted
Wideband transmission line balun
OwnerJames Dietrichinventor
Life of this patent
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Abstract
A wideband transmission line balun divides an input signal equally between a single-conductor transmission line and a polarity reversing, two-conductor transmission line thereby providing balanced signals at the transmission line outputs. Simple printed circuit and shielded structures include a ferrite core interactive with the two-conductor transmission line for parasitic mode suppression.
Claims13
A balun for converting between unbalanced and balanced signals and comprising:
- (a) a first transmission line having an input and an output;
- (b) a second transmission line having an input and an output;
- (c) coupling means for dividing a power signal equally between said first transmission line input and said second transmission line input;
- (d) said first transmission line and said second transmission line having substantially equal electrical lengths between said respective input and output;
- (e) said first transmission line having a single electrical conductor;
- (f) said second transmission line having a polarity reversing connection;
- and
- (g) said balanced signals being taken at said first transmission line output and said second transmission line output.
5 more elements
Dependencies are inferred from the claim text.