Title :
A 0.5-3 GHz high linearity enhancement mode pHEMT mixer with square wave drive and sum terminating diplexer
Author_Institution :
WSD R&D, Agilent Technol., Inc, San Jose, CA, USA
Abstract :
A 0.5-3 GHz high linearity single balanced mixer has been developed using 0.5 /spl mu/m enhancement mode pHEMT technology. Features of the design include an integral LO buffer amplifier-active balun with drive waveshaping and a sum terminating diplexer that work together to provide an input third order intercept point of +30 dBm from a drive level of only -3dBm. The ideal mixing device drive waveform provides very low conversion loss and excellent LO drive saturation characteristics. The mixer operates from a 3-5 V supply and consumes 21 mA.
Keywords :
HEMT integrated circuits; MMIC mixers; UHF mixers; baluns; field effect MMIC; multiplexing equipment; 0.5 to 3 GHz; base station mixers; drive saturation characteristics; drive waveshaping; enhancement mode pHEMT technology; high linearity mixer; input third order intercept point; integral LO buffer amplifier-active balun; single balanced mixer; square wave drive; sum terminating diplexer; Admittance; Diodes; FETs; Impedance matching; Linearity; Nonlinear distortion; PHEMTs; Radio frequency; Switches; Voltage;
Conference_Titel :
Gallium Arsenide Integrated Circuit (GaAs IC) Symposium, 2003. 25th Annual Technical Digest 2003. IEEE
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-7833-4
DOI :
10.1109/GAAS.2003.1252361
