TY - GEN
T1 - New IQ demodulator development in diagnostic equipment for fusion energy research
AU - Kung, C. C.
AU - Kramer, G. J.
AU - Wilson, J. R.
PY - 2011
Y1 - 2011
N2 - New IQ demodulator, which will be used in the reflectometry system, was developed for the Alcator C-Mod experiments. Because the demodulator itself is a 4 mm x 4 mm integrated circuit chip and has very wide operational bandwidth (0.7 GHz - GHz), it can be mounted on a circuit board with its low frequency IQ outputs connecting directly to gain control and dc offset adjustment circuits. This whole circuitry is realized on a 4″x2.5″ printed circuit board and can be well tailored to meet the requirements for any type of data collection system. Since the RF and LO ports are operated at very narrow bandwidth in this application, single stub match circuits are designed to improve the ports matching as well as serve as a single pole filter.
AB - New IQ demodulator, which will be used in the reflectometry system, was developed for the Alcator C-Mod experiments. Because the demodulator itself is a 4 mm x 4 mm integrated circuit chip and has very wide operational bandwidth (0.7 GHz - GHz), it can be mounted on a circuit board with its low frequency IQ outputs connecting directly to gain control and dc offset adjustment circuits. This whole circuitry is realized on a 4″x2.5″ printed circuit board and can be well tailored to meet the requirements for any type of data collection system. Since the RF and LO ports are operated at very narrow bandwidth in this application, single stub match circuits are designed to improve the ports matching as well as serve as a single pole filter.
UR - https://www.scopus.com/pages/publications/80955124682
UR - https://www.scopus.com/inward/citedby.url?scp=80955124682&partnerID=8YFLogxK
U2 - 10.1109/SOFE.2011.6052240
DO - 10.1109/SOFE.2011.6052240
M3 - Conference contribution
AN - SCOPUS:80955124682
SN - 9781457706691
T3 - Proceedings - Symposium on Fusion Engineering
BT - 2011 IEEE/NPSS 24th Symposium on Fusion Engineering, SOFE 2011
T2 - 2011 IEEE/NPSS 24th Symposium on Fusion Engineering, SOFE 2011
Y2 - 26 June 2011 through 30 June 2011
ER -