Title :
Millimeter wave hexagonal nano-ferrite circulator on silicon CMOS substrate
Author :
Liu Chao ; Oukacha, Hassan ; Enjin Fu ; Koomson, Valencia Joyner ; Afsar, Mohammed N.
Author_Institution :
Dept. of Electr. Eng., Tufts Univ., Medford, MA, USA
Abstract :
Hexagonal ferrites such as BaFe12O19 have very strong uniaxial anisotropic magnetic field and remanent magnetism. By employing these properties, magnetic devices can work in the tens of GHz frequency range without strong external magnetic field. The micro- and nano-sized hexagonal ferrite can be conveniently utilized to fabricate magnetic components integrated in CMOS integrated circuits. A circulator working at 60 GHz is designed and integrated into the commercial CMOS process.
Keywords :
CMOS integrated circuits; barium compounds; elemental semiconductors; ferrite circulators; field effect MIMIC; iron compounds; magnetic anisotropy; millimetre wave circulators; nanoelectronics; remanence; silicon; BaFe12O19; CMOS integrated circuits; Si; frequency 60 GHz; magnetic components; magnetic devices; microsized hexagonal ferrite; millimeter wave hexagonal nano-ferrite circulator; remanent magnetism; silicon CMOS substrate; uniaxial anisotropic magnetic field; Aluminum; CMOS integrated circuits; Circulators; Frequency modulation; Performance evaluation; Substrates; CMOS; Circulator; front end; hexagonal ferrite; post processing;
Conference_Titel :
Microwave Symposium (IMS), 2014 IEEE MTT-S International
Conference_Location :
Tampa, FL
DOI :
10.1109/MWSYM.2014.6848467
