TY - GEN
T1 - A S-band bitstream transmitter with Channelized Active Noise Elimination (CANE)
AU - Zhu, Rui
AU - Song, Yonghoon
AU - Wang, Y. Ethan
AU - Li, Yuexing
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/6/9
Y1 - 2015/6/9
N2 - Bitstream Modulated transmitters based on Delta Sigma Modulation have been proved to be promising for efficient amplification of non-constant envelope signal. Such transmitters preserve signal linearity by converting the signal to binary envelope and shaping the quantization noise out of signal band. To further suppress the noise near the in band signal that is left from noise shaping, active FIR filter structure consisting of multiple identical amplifier units is proposed. In this paper, the Channelized Active Noise Elimination (CANE) technique is employed to create an effective band-pass FIR filter by delaying, up-converting the baseband signal and then combining them in RF. A special power combining network is designed to maintain the overall PA efficiency while the noise power is suppressed. An S-band transmitter prototype with 2-channels has been built and tested. The results demonstrated that the CANE technique can achieve filtering with software reconfigured flexibility while maintaining the power efficiency.
AB - Bitstream Modulated transmitters based on Delta Sigma Modulation have been proved to be promising for efficient amplification of non-constant envelope signal. Such transmitters preserve signal linearity by converting the signal to binary envelope and shaping the quantization noise out of signal band. To further suppress the noise near the in band signal that is left from noise shaping, active FIR filter structure consisting of multiple identical amplifier units is proposed. In this paper, the Channelized Active Noise Elimination (CANE) technique is employed to create an effective band-pass FIR filter by delaying, up-converting the baseband signal and then combining them in RF. A special power combining network is designed to maintain the overall PA efficiency while the noise power is suppressed. An S-band transmitter prototype with 2-channels has been built and tested. The results demonstrated that the CANE technique can achieve filtering with software reconfigured flexibility while maintaining the power efficiency.
KW - Active noise filtering
KW - Delta-sigma modulations
KW - Envelope delta-sigma modulations
KW - Switching-mode power amplifiers
UR - http://www.scopus.com/inward/record.url?scp=84942636717&partnerID=8YFLogxK
U2 - 10.1109/WAMICON.2015.7120380
DO - 10.1109/WAMICON.2015.7120380
M3 - Conference contribution
AN - SCOPUS:84942636717
T3 - 2015 IEEE 16th Annual Wireless and Microwave Technology Conference, WAMICON 2015
BT - 2015 IEEE 16th Annual Wireless and Microwave Technology Conference, WAMICON 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2015 16th IEEE Annual Wireless and Microwave Technology Conference, WAMICON 2015
Y2 - 13 April 2015 through 15 April 2015
ER -