400 GHz HBT Differential Amplifier Using Unbalanced Feed Networks

Hacker, J.; Urteaga, M.; Lin, R.; Skalare, A.; Mehdi, I.; Rieh, J. -S.; Kim, M.

doi:10.1109/LMWC.2012.2214767

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400 GHz HBT Differential Amplifier Using Unbalanced Feed Networks

Hacker, J.;
Urteaga, M.;
Lin, R.;
Skalare, A.;
Mehdi, I.;
... Rieh, J. -S.;
... Kim, M.

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14

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16

초록

A terahertz differential eight-stage amplifier fabricated using state-of-the-art 125 nm double-heterojunction bipolar transistors (DHBT) is presented. The four-port unit-cell chain is designed for optimum forward differential gain with no even and odd-mode reverse gains. Unbalanced single-ended feed networks are added to preserve the amplifier gain without inducing oscillations. The proposed feed scheme is validated by a stable amplifier operation in 325-to-450 GHz range with the peak gain of 22 dB at 375 GHz.

키워드

Differential feed; InP HBT; terahertz amplifier

제목: 400 GHz HBT Differential Amplifier Using Unbalanced Feed Networks

저자: Hacker, J.; Urteaga, M.; Lin, R.; Skalare, A.; Mehdi, I.; Rieh, J. -S.; Kim, M.

DOI: 10.1109/LMWC.2012.2214767

발행일: 2012-10

유형: Article

저널명: IEEE Microwave and Wireless Components Letters

권: 22

호: 10

페이지: 536 ~ 538