Lumped constant compensated high/low pass balanced-to-unbalanced

Details Lumped constant compensated high/low pass balanced-to-unbalanced Lumped constant compensated high/low pass balanced-to-unbalanced

1997-07-18

2000-04-18

Gensler, Paul

Wave transmission lines and networks

Plural channel systems

Having branched circuits

333 25, 455323, H03H 748, H03H 742

Patent

active

060520396

ABSTRACT:
The invention proposes a lumped constant compensated high/pass balun (balance line to unbalance line transition). The proposed circuit can be used in microwave integrated circuit(MIC) and mononolithic microwave integrated circuit(MMIC) designs. The basic operating principle of the proposed circuit is to use two sets of lumped type high pass and low pass filters to synthesize a microwave balun. The first filter set provides the wide band 180.degree. phase difference property for the balun circuit. The amplitude imbalance of the balun is compensated by the other filter set. The advantage of the proposed circuit is to replace the bulky and non-planar distributed balun or traditional transformer in low microwave frequency range.

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