Lumped element four port coupler

Details Lumped element four port coupler Lumped element four port coupler

1994-06-21

1996-01-02

Gensler, Paul

Wave transmission lines and networks

Plural channel systems

Having branched circuits

333118, 333161, H01P 516, H01P 519

Patent

active

054812313

ABSTRACT:
A four port coupler includes a first port adapted to impedance match to a first impedance Z.sub.o, a second port adapted to impedance match to a second impedance Z.sub.1 different than the first impedance, a third port adapted to impedance match to the first impedance and a fourth port adapted to impedance match to the second impedance.

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"A Lumped Element Rat Race Coupler" from Applied Microwave, by Samuel J. Parisi, MITRE Corp., Bedford, Massachusetts, Aug./Sep. 1989.
"A Monolithic Image-Rejection Mixer On GaAs Using Lumped Elements.sup.* " by John Putnam and Richard Puente, M/A-Com Advanced Semiconductor Opertions, Lowell, Mass., from Microwave Journel, Nov. 1987.

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