IEICE TRANSACTIONS on Electronics
An Optimum Bias Point Study of Low Local Oscillator Power Operation for 60 GHz Drain Mixer
Summary :
The optimum bias point for a drain mixer operating on low local oscillator (LO) power was investigated. The bias voltage dependence of the required LO power and the conversion gain in the drain mixer was clarified by a simplified nonlinear model which the drain current characteristics around knee voltage is approximated by two straight line segments. It was found that an optimum gate bias voltage Vgs exists for a given applied LO power, and the optimum gate bias voltage moves toward the pinch-off voltage as the injection LO power level decreases. In order to verify the variation of the optimum gate bias voltage, a 60 GHz MMIC drain mixer adopting the optimum gate bias voltage for low LO power level was fabricated. The fabricated drain mixer exhibited a conversion gain of 0 dB with the injection LO power level of 0 dBm. This value of 0 dBm is the best performance yet obtained for a 60 GHz MMIC drain mixer. The measured optimum gate bias voltage was near the pinch-off voltage. This result was in good agreement with the theoretical analysis. The LO power level of a drain mixer has been improved so that it is on a par with that of a gate mixer.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E82-C No.11 pp.1982-1991
- Publication Date
- 1999/11/25
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- Special Section PAPER (Special Issue on High-Frequency/High-Speed Devices for Information and Communication Systems in the 21st Century)
- Category
- Low Power-Consumption RF ICs
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Keiichi YAMAGUCHI, Yasuhiko KURIYAMA, Eiji TAKAGI, Mitsuo KONNO, "An Optimum Bias Point Study of Low Local Oscillator Power Operation for 60 GHz Drain Mixer" in IEICE TRANSACTIONS on Electronics,
vol. E82-C, no. 11, pp. 1982-1991, November 1999, doi: .
Abstract: The optimum bias point for a drain mixer operating on low local oscillator (LO) power was investigated. The bias voltage dependence of the required LO power and the conversion gain in the drain mixer was clarified by a simplified nonlinear model which the drain current characteristics around knee voltage is approximated by two straight line segments. It was found that an optimum gate bias voltage Vgs exists for a given applied LO power, and the optimum gate bias voltage moves toward the pinch-off voltage as the injection LO power level decreases. In order to verify the variation of the optimum gate bias voltage, a 60 GHz MMIC drain mixer adopting the optimum gate bias voltage for low LO power level was fabricated. The fabricated drain mixer exhibited a conversion gain of 0 dB with the injection LO power level of 0 dBm. This value of 0 dBm is the best performance yet obtained for a 60 GHz MMIC drain mixer. The measured optimum gate bias voltage was near the pinch-off voltage. This result was in good agreement with the theoretical analysis. The LO power level of a drain mixer has been improved so that it is on a par with that of a gate mixer.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e82-c_11_1982/_p
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@ARTICLE{e82-c_11_1982,
author={Keiichi YAMAGUCHI, Yasuhiko KURIYAMA, Eiji TAKAGI, Mitsuo KONNO, },
journal={IEICE TRANSACTIONS on Electronics},
title={An Optimum Bias Point Study of Low Local Oscillator Power Operation for 60 GHz Drain Mixer},
year={1999},
volume={E82-C},
number={11},
pages={1982-1991},
abstract={The optimum bias point for a drain mixer operating on low local oscillator (LO) power was investigated. The bias voltage dependence of the required LO power and the conversion gain in the drain mixer was clarified by a simplified nonlinear model which the drain current characteristics around knee voltage is approximated by two straight line segments. It was found that an optimum gate bias voltage Vgs exists for a given applied LO power, and the optimum gate bias voltage moves toward the pinch-off voltage as the injection LO power level decreases. In order to verify the variation of the optimum gate bias voltage, a 60 GHz MMIC drain mixer adopting the optimum gate bias voltage for low LO power level was fabricated. The fabricated drain mixer exhibited a conversion gain of 0 dB with the injection LO power level of 0 dBm. This value of 0 dBm is the best performance yet obtained for a 60 GHz MMIC drain mixer. The measured optimum gate bias voltage was near the pinch-off voltage. This result was in good agreement with the theoretical analysis. The LO power level of a drain mixer has been improved so that it is on a par with that of a gate mixer.},
keywords={},
doi={},
ISSN={},
month={November},}
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TY - JOUR
TI - An Optimum Bias Point Study of Low Local Oscillator Power Operation for 60 GHz Drain Mixer
T2 - IEICE TRANSACTIONS on Electronics
SP - 1982
EP - 1991
AU - Keiichi YAMAGUCHI
AU - Yasuhiko KURIYAMA
AU - Eiji TAKAGI
AU - Mitsuo KONNO
PY - 1999
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E82-C
IS - 11
JA - IEICE TRANSACTIONS on Electronics
Y1 - November 1999
AB - The optimum bias point for a drain mixer operating on low local oscillator (LO) power was investigated. The bias voltage dependence of the required LO power and the conversion gain in the drain mixer was clarified by a simplified nonlinear model which the drain current characteristics around knee voltage is approximated by two straight line segments. It was found that an optimum gate bias voltage Vgs exists for a given applied LO power, and the optimum gate bias voltage moves toward the pinch-off voltage as the injection LO power level decreases. In order to verify the variation of the optimum gate bias voltage, a 60 GHz MMIC drain mixer adopting the optimum gate bias voltage for low LO power level was fabricated. The fabricated drain mixer exhibited a conversion gain of 0 dB with the injection LO power level of 0 dBm. This value of 0 dBm is the best performance yet obtained for a 60 GHz MMIC drain mixer. The measured optimum gate bias voltage was near the pinch-off voltage. This result was in good agreement with the theoretical analysis. The LO power level of a drain mixer has been improved so that it is on a par with that of a gate mixer.
ER -
English
