Ninety degree coupler for radio frequency degraded circuits

Details Ninety degree coupler for radio frequency degraded circuits Ninety degree coupler for radio frequency degraded circuits

2005-03-29

2005-03-29

Pascal, Robert (Department: 2817)

Wave transmission lines and networks

Plural channel systems

Having branched circuits

C333S119000

Reexamination Certificate

active

06873224

ABSTRACT:
The present invention provides a ninety degree coupler for a frequency range of 100 mHz to gigaHertz ranges and including a minimum number of components employing a four port device which receives an input signal and splits it between a transformer coil and another reactor and couples it to another port and splits it between the transformer and a capacitor, then cross-connecting to a capacitor where phase shift is created by the inductors and capacitors resulting in phase shift between the signal ports remaining at 90 degrees over a wide frequency band.

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