Title :
A novel MMIC area efficient method for bias stabilising HBT based distributed amplifiers whilst maintaining low frequency gain
Author :
Iqbal, A. ; Darwazeh, I.Z.
Author_Institution :
Dept. of Electr. Eng. & Electron., Univ. of Manchester Inst. of Sci. & Technol., UK
Abstract :
In this paper we introduce a novel technique for achieving DC bias stabilisation of Heterojunction Bipolar Transistor (HBT) based distributed amplifiers whilst maintaining low frequency gain, without the use of large emitter decoupling capacitors. Equations are presented which show the underlying principles and limitations of the new technique. In addition, simulation results are given which demonstrate its effectiveness when compared to a frequently used conventional method
Keywords :
MMIC amplifiers; bipolar MMIC; circuit stability; distributed amplifiers; equivalent circuits; heterojunction bipolar transistors; network analysis; wideband amplifiers; DC bias stabilisation; HBT based distributed amplifiers; MMIC area efficient method; low frequency gain; Bandwidth; Capacitors; Distributed amplifiers; Distributed parameter circuits; Equations; Frequency; Heterojunction bipolar transistors; MMICs; Parasitic capacitance; Resistors;
Conference_Titel :
High Frequency Postgraduate Student Colloquium, 1997
Conference_Location :
Leeds
Print_ISBN :
0-7803-3951-7
DOI :
10.1109/HFPSC.1997.651673
