C. Schick, T. Feger, E. Soenmez, K. Schad, A. Trasser, H. Schumacher
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Attenuation compensation techniques in distributed SiGe HBT amplifiers using highly lossy thin film microstrip lines
A compact 1.3mm x 0.83mm SiGe distributed wideband amplifier is presented. The design utilises highly lossy thin film microstrip transmission line elements. Attenuation compensation methods for extending the amplifier’s bandwidth are discussed. Amplifier small-signal gain is 10.5 dB, upper 3 dB cut-off frequency is 41 GHz. Low group delay variations of 21 ps within the bandwidth qualify this amplifier for operation in a 40 Gbit/s fibre-optic communication system.
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