Title :
A novel technique for obtaining LO and RF (LSB) rejection in 25-40 GHz microwave up conversion mixers based on the concepts of distributed and double balanced mixing
Author :
Mehdi, M. ; Rumelhard, C. ; Polleux, J.L. ; Lefebvre, B.
Author_Institution :
Photonic & Microwave Group, ESYCOM, Marne, France
Abstract :
In this paper a new configuration of up converter is presented. In this circuit, the LO and RF (LSB) frequencies are rejected thanks to a distributed and balanced circuit. Eight GaAs PHEMTs with a gate-length of 0.25 /spl mu/m are used. A conversion gain of -6 dB and a rejection over 6 dB on LO and RF (LSB) are obtained.
Keywords :
III-V semiconductors; gallium arsenide; high electron mobility transistors; microwave mixers; -6 dB; 25 to 40 GHz; GaAs; LO frequencies rejection; PHEMT; RF frequencies rejection; distributed mixing; double balanced mixing; microwave up conversion mixers; Circuits; Communication systems; Filtering; Gain; Gallium arsenide; Microwave theory and techniques; Mixers; PHEMTs; Radio frequency; Voltage;
Conference_Titel :
Gallium Arsenide and Other Semiconductor Application Symposium, 2005. EGAAS 2005. European
Conference_Location :
Paris
Print_ISBN :
88-902012-0-7
