Title :
An active mixer topology for high linearity and high frequency applications
Author :
Bao, Mingquan ; Li, Yinggang
Author_Institution :
Ericsson Res., Molndal
Abstract :
A new mixer topology is proposed which combines in parallel two single-balanced mixers, one Gilbert mixer and the other a so-called transconductance mixer. Such a mixer is supposed to improve linearity performance without degradation in noise figure and conversion gain. Based on the proposed topology, an active mixer operating at 23 GHz has been designed and fabricated in InGaP/GaAs technology. Under a power consumption of 52.6 mW, the measured IIP3 is +12 dBm, with 4 dB conversion gain and 11.5 dB double sideband noise figure.
Keywords :
mixers (circuits); network topology; Gilbert mixer; active mixer topology; conversion gain; frequency 23 GHz; high frequency applications; high linearity; noise figure; noise figure 11.5 dB; power 52.6 mW; single-balanced mixers; transconductance mixer; Degradation; Energy consumption; Frequency; Gallium arsenide; Linearity; Mixers; Noise figure; Performance gain; Topology; Transconductance; InGaP/GaAs HBT; Index Terms; active; linearity; mixer topology;
Conference_Titel :
Microwave Integrated Circuit Conference, 2007. EuMIC 2007. European
Conference_Location :
Munich
Print_ISBN :
978-2-87487-002-6
DOI :
10.1109/EMICC.2007.4412636
