2-4 GHZ GAAS PASSIVE DOUBLE-BALANCED MIXER CHIP AND DESIGN METHOD THEREFOR

WIPO Patent Application WO/2018/010261

A1

A 2-4 GHz GaAs passive double-balanced mixer chip and a design method therefor, relating to the field of monolithic microwave integrated circuits (MIMICs). The 2-4 GHz GaAs passive double-balanced mixer chip comprises RF_BALUN, LO_BALUN, Schottky diodes (D1, D2, D3, D4), and a matching element. Four identical diodes (D1, D2, D3, D4) are connected from beginning to end in series to form a ring, and are connected to two baluns (RF_BALUN, LO_BALUN) to achieve conversion from a single end to a differential. An output IF is leaded out from a central tap point of either of baluns (RF_BALUN, LO_BALUN) or a balun (RF_BALUN) at an RF side. The central point of a balun (LO_BALUN) at an LO side is grounded. Performance parameter optimization is assisted by means of simulation, and the operation efficiency, conversion gain, and port standing wave of a mixer are adjusted by adjusting the turns ratio of baluns and the size of diodes, and adding a matching element. An MIMIC passive double-balanced mixer chip has a smaller size, a higher integration level, more stable performance, and better uniformity than a conventional hybrid integrated circuit, and can simplify the system design and reduce the size of a module.

XU HUAN (CN)

PCT/CN2016/096415

January 18, 2018

August 23, 2016

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CHENGDU TIGER MICROWAVE TECH CO LTD (CN)

G06F17/50; H03D7/14

CN204966644U	2016-01-13
US20090280767A1	2009-11-12
CN104868852A	2015-08-26
CN103427767A	2013-12-04
CN204481764U	2015-07-15

CHENGDU JINYING PATENT FIRM (CN)

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