Title :
Low noise broadband MMIC amplifier concept
Author_Institution :
Inst. of Electron. Fundamentals, Warsaw Univ. of Technol., Poland
Abstract :
Technique of the broadband, low-noise matching of the amplifier input by means of a lossless capacitive feedback is proposed. Bandwidth exceeding one decade with the noise figure on the order 1-1.5 dB and good input matching may be achieved with existing MMIC technologies, which is one of the best noise characteristics reported to date. Prototype 0.5-5 GHz amplifier achieves NF below 1.4 dB and good input matching.
Keywords :
MMIC amplifiers; feedback amplifiers; field effect MMIC; impedance matching; integrated circuit noise; wideband amplifiers; 0.5 to 5 GHz; 1 to 1.5 dB; MMIC LNA; amplifier input; lossless capacitive feedback; low noise broadband amplifier; low-noise matching; Broadband amplifiers; Circuit noise; Circuit stability; Feedback loop; Frequency; Impedance matching; Low-noise amplifiers; MMICs; Noise figure; Voltage;
Conference_Titel :
Microwave Symposium Digest, 1998 IEEE MTT-S International
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
0-7803-4471-5
DOI :
10.1109/MWSYM.1998.705083
