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Ku-band low noise MMIC amplifier with bias circuit for compensation of temperature dependence and process variation

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7 Author(s)
Yamanaka, K. ; Inf. Technol. R&D Center, Mitsubishi Electr. Corp., Kanagawa, Japan ; Yamauchi, K. ; Mori, K. ; Ikeda, Y.
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In this paper, a Ku-band low-noise MMIC amplifier is presented, which is equipped with a bias circuit that compensates not only temperature dependence of the FETs' gain but also gain variation between chips due to process variations. The Ku-band low noise MMIC amplifier with proposed gate-bias circuit was designed and manufactured. It was proved that the proposed bias circuit reduced the temperature dependence of the two-stage MMIC amplifier's gain from 1.4 dB/100 K to 1.0 dB/100 K. The chip area consumed for the bias circuit is less than 10% of the total chip size of 1.17 mm/sup 2/. The gain variation between chips was reduced to 0.25 dB in RMS. This amplifier is suitable for active phased array applications.

Published in:

Microwave Symposium Digest, 2002 IEEE MTT-S International  (Volume:3 )

Date of Conference:

2-7 June 2002