Title :
A miniaturized X-band 4-stage LNA designed using a novel layout optimization technique
Author :
Chaki, S. ; Takagi, T. ; Tsukahara, Y. ; Matsubayashi, H. ; Andoh, N. ; Sasaki, Y. ; Otsubo, M.
Author_Institution :
Optoelectron. & Microwave Devices R&D Lab., Mitsubishi Electr. Corp., Hyogo, Japan
Abstract :
A novel layout optimization technique has been proposed and adapted to an X-band LNA. The layout pattern of the amplifier has been optimized in only two days by using simple equivalent circuits derived from electromagnetic simulation results. The amplifier has achieved a gain of 35 dB with a noise figure of 1.7 dB. These results have good agreement with simulated results, and the effective chip area is miniaturized to 4.8 mm/sup 2/.
Keywords :
MMIC amplifiers; circuit optimisation; equivalent circuits; integrated circuit layout; 1.7 dB; 35 dB; X-band four-stage LNA; electromagnetic simulation; equivalent circuit; layout optimization; low noise amplifier; miniaturization; Circuit simulation; Costs; Coupling circuits; Design optimization; Distributed parameter circuits; Equivalent circuits; Gain; Integrated circuit noise; MMICs; Noise figure;
Conference_Titel :
Microwave Symposium Digest, 1996., IEEE MTT-S International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-3246-6
DOI :
10.1109/MWSYM.1996.512154
