A 30 GHz bandwidth AlGaAs-GaAs HBT direct-coupled feedback amplifier
- 1 August 1991
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Microwave and Guided Wave Letters
- Vol. 1 (8), 208-210
- https://doi.org/10.1109/75.84589
Abstract
A DC to 30 GHz broadband amplifier based on the Darlington connected transistors with series and shunt resistive feedback was implemented with self-aligned AlGaAs-GaAs heterojunction bipolar transistor (HBT) technology. The measured performance shows 7.8 dB of gain with -3-dB roll-off bandwidth of 30 GHz. Measured at 1 GHz, the noise figure was 5.7 dB, 1-dB compression power was 11 dBm, and the third-order intermodulation product intercept point (IP3) was 23.9 dBm.Keywords
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