TY - JOUR
T1 - A narrow band-pass filter type Wilkinson power divider for I-Q demodulator in microwave interferometer system
AU - Wang, X.
AU - Yoshikawa, M.
AU - Kohagura, J.
AU - Shima, Y.
AU - Ikezoe, R.
AU - Sakamoto, M.
AU - Imai, T.
AU - Nakashima, Y.
AU - Ma, Z.
AU - Sakagami, I.
AU - Mase, A.
N1 - Publisher Copyright:
© 2015 IOP Publishing Ltd and Sissa Medialab srl.
PY - 2015/11/12
Y1 - 2015/11/12
N2 - I-Q (In-phase Quadrature) demodulator is one of key components in microwave interferometer system application. Normally, I-Q demodulator consists of amplifiers, mixers, 90 degree phase shifter, power divider and band-pass filters, and it is widely used in various microwave communication systems and measurement systems. In this paper, power divider and band-pass filters are newly designed as one single passive component, therefore, I-Q demodulator topology becomes simplified. The novel narrow band-pass filter type Wilkinson power divider not only provides extremely miniaturized circuit size, but also maintains the band-pass filter performance and power division function as well. One experimental circuit shows good agreement with the theoretical simulation.
AB - I-Q (In-phase Quadrature) demodulator is one of key components in microwave interferometer system application. Normally, I-Q demodulator consists of amplifiers, mixers, 90 degree phase shifter, power divider and band-pass filters, and it is widely used in various microwave communication systems and measurement systems. In this paper, power divider and band-pass filters are newly designed as one single passive component, therefore, I-Q demodulator topology becomes simplified. The novel narrow band-pass filter type Wilkinson power divider not only provides extremely miniaturized circuit size, but also maintains the band-pass filter performance and power division function as well. One experimental circuit shows good agreement with the theoretical simulation.
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U2 - 10.1088/1748-0221/10/11/C11005
DO - 10.1088/1748-0221/10/11/C11005
M3 - Article
AN - SCOPUS:84948741320
SN - 1748-0221
VL - 10
JO - Journal of Instrumentation
JF - Journal of Instrumentation
IS - 11
M1 - C11005
ER -