High performance mixer structures for monolithic microwave integ

Details High performance mixer structures for monolithic microwave integ High performance mixer structures for monolithic microwave integ

1996-05-10

1998-10-06

Vo, Nguyen

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

455317, H04B 126

Patent

active

058191690

ABSTRACT:
Mini-microstrip and mini-coplanar transmission lines are formed on a ship substrate with two metal layers. Together with a ground plane on the underside of the substrate, the lines are connected to form a Marchand balun. Two baluns, a quarter-wave transmission line and a diode quad are combined on a chip to form an MMIC mixer, and a par of mixers are combined with 90.degree. and 180.degree. splitters to provide circuits with superior rejection of specific spurious signals as well as RF and LO leakage over.

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