Title :
A 1.9 GHz double-balanced subharmonic mixer for direct conversion receivers
Author :
Nimmagadda, K. ; Rebeiz, G.M.
Author_Institution :
Radiat. Lab., Michigan Univ., Ann Arbor, MI, USA
Abstract :
This paper presents a 1.9 GHz double-balanced subharmonic mixer for wireless communications applications. The mixer is fabricated in a 0.35 /spl mu/m BiCMOS process. The conversion gain of the subharmonic mixer at an RF input of 1.6-1.9 GHz with an LO input at 750-900 MHz is 9.5-7.5 dB. The mixer has a measured IIP3 of -3 dBm and an input 1 dB compression point of -10 dBm at 1.9 GHz. The measured SSB noise figure is 9.5-10.5 dB at 1.9 GHz. The mixer core consumes 8 mA of current and the LO buffers consume 7 mA of current from a 3 V power supply. The application areas are in direct conversion transceivers for wireless systems.
Keywords :
BiCMOS analogue integrated circuits; MMIC mixers; UHF integrated circuits; UHF mixers; integrated circuit noise; land mobile radio; transceivers; 0.35 micron; 1.9 GHz; 3 V; 7.5 to 9.5 dB; 8 mA; 9.5 to 10.5 dB; BiCMOS process; IIP3; LO buffers; SSB noise figure; conversion gain; direct conversion receivers; double-balanced subharmonic mixer; transceivers; wireless communications applications; Amplitude modulation; BiCMOS integrated circuits; Circuit topology; Mixers; Noise measurement; RF signals; Radio frequency; Switches; Transceivers; Wireless communication;
Conference_Titel :
Radio Frequency Integrated Circuits (RFIC) Symposium, 2001. Digest of Papers. 2001 IEEE
Conference_Location :
Phoenix, AZ, USA
Print_ISBN :
0-7803-6601-8
DOI :
10.1109/RFIC.2001.936251
