TY - GEN
T1 - An SH0 lithium niobate trans-impedance chirp compressor with high voltage gain
AU - Manzaneque, Tomas
AU - Lu, Ruochen
AU - Yang, Yansong
AU - Gong, Songbin
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/4/24
Y1 - 2018/4/24
N2 - We present a new type of acoustic devices that, for the first time, can simultaneously perform chirp compression and impedance transformation to achieve passive voltage amplification with a gain of 12. The device consists of an acoustic dispersive delay line (DDL) based on shear-horizontal waves (SH0) in lithium niobate (LiNbO3). SH0 waves are employed due to their demonstrated high electromechanical coupling (k2) of 39%, low propagation loss, and a slow phase velocity of 3700 m/s. As a result of these desirable features, the fabricated device demonstrates a large fractional bandwidth (FBW) of 50%, a low insertion loss (IL), a high processing gain (TB) of 76, and a compact size of 1.57 by 0.23 mm. In addition to the compression, the device harnesses an asymmetrical transduction scheme to provide a compounding voltage gain from impedance transformation. Consequently, it results in a much higher voltage at the device output, which can be exploited to attain a higher sensitivity for wake-up radio receivers.
AB - We present a new type of acoustic devices that, for the first time, can simultaneously perform chirp compression and impedance transformation to achieve passive voltage amplification with a gain of 12. The device consists of an acoustic dispersive delay line (DDL) based on shear-horizontal waves (SH0) in lithium niobate (LiNbO3). SH0 waves are employed due to their demonstrated high electromechanical coupling (k2) of 39%, low propagation loss, and a slow phase velocity of 3700 m/s. As a result of these desirable features, the fabricated device demonstrates a large fractional bandwidth (FBW) of 50%, a low insertion loss (IL), a high processing gain (TB) of 76, and a compact size of 1.57 by 0.23 mm. In addition to the compression, the device harnesses an asymmetrical transduction scheme to provide a compounding voltage gain from impedance transformation. Consequently, it results in a much higher voltage at the device output, which can be exploited to attain a higher sensitivity for wake-up radio receivers.
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U2 - 10.1109/MEMSYS.2018.8346672
DO - 10.1109/MEMSYS.2018.8346672
M3 - Conference contribution
AN - SCOPUS:85047010134
T3 - Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
SP - 783
EP - 786
BT - 2018 IEEE Micro Electro Mechanical Systems, MEMS 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 31st IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2018
Y2 - 21 January 2018 through 25 January 2018
ER -