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Your search keyword '"Marescialli, L."' showing total 21 results
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21 results on '"Marescialli, L."'

2. J-band 16 watt HFET amplifier module for very high power applications

Author

Calori, M., Graffitti, R., Marescialli, L ., and Proietti, C.

Subjects
ING-INF/01 Elettronica
Abstract

In this work we report on the design and construction of a three stage J-band (10-10.5 GHz) high power amplifier based on 0.4 um gate-length HFET devices. In particular we will demonstrate that by means of a Micro Hybrid Integrated Circuits (MHIC) approach, power amplifier with Pout=16 W, Gass=19 dB @ ldBc and n|=27% can be routinely achieved.

Published
1998
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5. Packaged X-band T/R module for active phased array radar applications

Author

Calori, M., Geronzi, G., Graffitti, R., Lanzieri, C., Lasaponara, L., and Marescialli, L.

Subjects
Hardware_INTEGRATEDCIRCUITS, ING-INF/01 Elettronica, Hardware_PERFORMANCEANDRELIABILITY, Hardware_LOGICDESIGN
Abstract

In this article we describe a global design approach of an X-band Tx/Rx module which, by means of a Multi Chip Module (MCM) technique, includes in a single package the different microwave functions (4-bit phase-shifter, low-noise amplifier, power amplifier, switching control circuits), the thin film interconnections, the bias circuits, the driver circuits (Si ICs) and the switching MOS.

Published
1994
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10. A high-yield monolithic X-band four bit phase-shifter

Author

Marescialli, L., Massani, M., Rapisarda, S., and Geronzi, G.

Subjects
ING-INF/01 Elettronica
Abstract

A key element in a GaAs MMIC Transmit/Receive module for active Phased-array application is the phase-shifter needed for the electronic beam steering; because of the circuit complexity and usually large chip size the technological and electrical yield must be maximized. In the present work the design, realisation and performance of an X-band, four-bit phase shifter, using a high-yield technology and a tolerant electric circuit are described.

Published
1992

19. Broadband high-Q monolithic oscillator tuned by planar yig resonator.

Author

Cetronio, A., De Gasperis, P., Graffitti, R., Marcelli, R., Marescialli, L., Cetronio, A., De Gasperis, P., Graffitti, R., Marcelli, R., and Marescialli, L.

Abstract

We have designed and characterised a one-port MSFVW-SER based monolithic oscillator working at X band. Loaded Q's up to 3600 has been obtained at 9 GHz with tuning band up to 2 GHz

Published
1990

21. Microwave characterization of YBaCuO thin films grown in situ by Off-axis magnetron sputtering.

Author

Sparvieri, N., Fiorello, A., Marescialli, L., and Ambrico, M.

Abstract

Superconducting films of YBaCuO were deposited in situ on LaAlO substrates using single-target 90° off-axis sputtering. The obtained films have tipical T values of 91K. Surface resistance measurements on as-grown films reach 1.1 mΩ at 77K and 10GHz; whilst on ion-etched patterned resonant lines R (77K, 10GHz) it is about 10mΩ. [ABSTRACT FROM AUTHOR]

Published
1994
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