Wave transmission lines and networks – Coupling networks – Balanced to unbalanced circuits
Patent
1990-06-07
1992-09-15
Gensler, Paul
Wave transmission lines and networks
Coupling networks
Balanced to unbalanced circuits
333 26, H03H 742, H01P 510
Patent
active
051481308
ABSTRACT:
A wideband balun for converting between unbalanced and balanced signals and impedances utilizes two single-ended networks connected in parallel at the unbalanced side. The networks provide equal power split and equal phase slopes with midband phase shifts of +90 and -90 degrees in order to give equal-amplitude, anti-phase balanced outputs over an octave or more bandwidth. Printed circuits construction including a folded microstrip line provides an effective implementation at UHF frequencies.
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