A 23 GHz Active Mixer with Integrated Diode Linearizer in SiGe BiCMOS Technology

Active mixers operating at 23 GHz are designed and fabricated in SiGe technology. An integrated diode linearizer is used to improve the linearity of the mixer. Measurement and simulation show excellent agreement. Typically, 10 dB double-sideband noise figure, 10 dBm IIP3 and 2 dB conversion gain are measured, featuring low noise and high linearity in a same design.