An active mixer operating at 20 GHz based

on the Gilbert Micromixer topology was designed and

fabricated in SiGe technology. High performances are

measured and especially an excellent linearity for moderate

current consumption is demonstrated. The circuit shows an

Output IP3 of +12 dBm and a conversion gain Gc of +7.7 dB

for an optimum LO power of only -2 dBm. The bias current

in the entire circuit is only 25 mA for a chip size of 1.8 x 2

mm²

Ancey, P.

Coustou, A.

Doand, M.N.