Title :
A 100 MHz MEMS SiBAR phase modulator for quadrature phase shift keying
Author :
Sorenson, Logan ; Ayazi, Farrokh
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
A technique is proposed to employ the phase shifting capability of a MEMS resonator to form the basic component of a switchless quadrature phase shift keying (QPSK) scheme. The advantages of such an approach include direct baseband to RF modulation, no generation of intermodulation products since the resonator is operated linearly, and small size, cost, and power dissipation. An example phase modulator system built using a 100 MHz SiBAR demonstrates at least 54° of relative phase shift.
Keywords :
bulk acoustic wave devices; elemental semiconductors; micromechanical resonators; modulators; quadrature phase shift keying; silicon; MEMS SiBAR phase modulator; MEMS resonator; RF modulation; Si; frequency 100 MHz; intermodulation products; phase shifting capability; quadrature phase shift keying; silicon bulk acoustic resonator; switchless QPSK scheme; Micromechanical devices; Oscillators; Phase shift keying; Radio frequency; Resonant frequency; Tuning;
Conference_Titel :
Frequency Control Symposium (FCS), 2012 IEEE International
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4577-1821-2
DOI :
10.1109/FCS.2012.6243734
