A compact 3W X-band GaAs MMIC amplifier based on a novel multi-push-pull circuit concept

Henry, H.G.; Freitag, R.G.; Brooks, Richard R. W.; Burk, Albert A.; Murphy, M.

doi:10.1109/gaas.1991.172705

Cited by 3 publications

(1 citation statement)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The MODAR X-band power MMIC was designed based on a baseline X-band power MESFET process which has been used for other previously described X-band power applications [5], [6]. The active element is a power MESFET fabricated using conventional GaAs processing techniques including oxygen damage implants for isolation, AuGe/Ni/Au alloyed ohmic contacts, a double ledge process to increase drain-gate breakdown voltage, direct-written 0.5-pm TiPtAu gates, ECR-deposited Si3N4 passivation, wax mounting onto sapphire discs for lapping to 4 mil final thickness, and reactively ion etched vias.…”

Section: B Process and Fet Descriptionmentioning

confidence: 99%

High yield X-band GaAs power MMIC insertion into the 160-W MODAR wind shear detection/weather system

Freitag

Henry

Lee³

et al. 1995

IEEE Trans. Microwave Theory Techn.

Self Cite

View full text Add to dashboard Cite

This paper describes the successful insertion of a high yield 4-W GaAs X-band power MMIC into the solid-state transmitter of the MODular Avionics Radar (MODAR) weather system. To date, over 15000 4-W MMIC's have been delivered with a combined ddRF test yield averaging 39%. The design and fabrication of the MMIC's are presented along with statistical test data on over 46000 MMIC's. The integration of the MMIC's into a higher level 12-W hybrid assembly and an 85-W power module are also discussed. Two 85-W modules are combined in the transmitter to achieve a nominal power output of 160 W.Statistical test data on these higher level assemblies is presented. This work demonstrates the viability of inserting GaAs power MMIC's into commercial systems.

show abstract

Section: B Process and Fet Descriptionmentioning

confidence: 99%