Title :
A monolithic variable gain Ku-band LNA
Author :
Eppich, R.D. ; Heston, D.D.
Author_Institution :
Texas Instrum. Inc., Dallas, TX, USA
Abstract :
A monolithic four-stage low-noise amplifier (LNA) has demonstrated over 25 dB gain with gain control exceeding 30 dB and a noise figure of less than 3.5 dB from 14 GHz to 17 GHz. Single-gate field-effect transistors (FETs) provide minimum noise figure in the two input stages while dual-gate FETs in the output stages contribute enhanced gain with gain control. Gain control is achieved without degradation in the input and output voltage standing-wave ratios.<>
Keywords :
MMIC; field effect integrated circuits; gain control; microwave amplifiers; 14 to 17 GHz; 25 dB; 3.5 dB; Ku-band; dual-gate FETs; gain control; input voltage standing wave ratio; monolithic four-stage low-noise amplifier; noise figure; output voltage standing-wave ratios; single gate FETs; Circuit noise; Degradation; FETs; Feedback; Gain control; Impedance matching; Low-noise amplifiers; Noise figure; Noise reduction; Radio frequency;
Conference_Titel :
Microwave Symposium Digest, 1989., IEEE MTT-S International
Conference_Location :
Long Beach, CA, USA
DOI :
10.1109/MWSYM.1989.38782
