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Distributed antenna systems over mobile platforms

The concept of distributed antennas is also being applied to the new paradigm of Satellite communication systems. In collaboration with the European Space Agency we are developing simple-shape plug and play antennas provided with tuning capability and suited to be allocated into clusters of any configuration to produce omnidirectional as well directive and tracking patterns.
Nano and pico satellites have recently come out, focusing on the realization of spacecraft with small mass, small size, low cost and rapid timescales. One of the problems related to small satellites is the limited capability of RF section in terms of number and quality of available links. These limitations may be overcome by exploiting a new antenna concept based on the idea of “structural radiators” borrowed from Avionic and Naval applications as well as from hand-held communication. It is here shown that, when properly optimized, a multi-port system permits to achieve a plurality of functions together with a natural redundancy that improves fault tolerance.

nanosat







 

Passive intermodulations Products (1994)

 

Italsat F2

  • Electromagnetic modelling for passive intermodulation control

 

  • FDTD modelling of complex scenarios

 

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P. Buccioni, F. Carducci, R. Cioni, L. Giorgi, G. Marrocco, F. Mastracci, M. Sabbadini, ''Electromagnetic modeling for passive intermodulation control'', European Microwave Conference, pp.185-189, Bologna, 1995

 

 



 

Antenna coupling (2002)

 

 

SPARTAN C27-J

HF antenna performances

 

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Gain  and near-field at 10 MHz due to towel-bar antennas

 

G. Marrocco, P. Tognolatti, "A new method for modelling and design of multi-conductor airborne antennas", IEE Proceed. Microwave Antennas Propagation, vol.151, pp. 181-186, Mar. 2004.

 

 

Design of broadband naval antennas (2005)

 

The Bifolded antenna

HF loaded antenna matched over a broad band

 

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Aircraft-carrier G. GARIBALDI

 

L. Mattioni, G. Marrocco, "Design of a Broad-band HF Antenna for Multi-mode Naval Communications", IEEE Antennas and Wireless Propagation Letters, Vol.4, pp.179-182, 2005

 

L. Mattioni, G. Marrocco, "Design of a Broad-band HF Antenna for Multi-mode Naval Communications - part II: extension to VHF/UHF ranges", IEEE Antennas and Wireless Propagation Letters, Vol.2, pp.83-85, 2007

 

 

Design of broadband naval arrays (2007)

 

Naval Structural Antenna system

Loaded wires around a big mast may by used to improve efficiency or to shape the coverage

 

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Uniform coverage (28 MHz)          Sectorial coverage (20 MHz

 

G. Marrocco, L. Mattioni , "Naval structural antenna systems for broadband HF communications", IEEE Trans. Antennas Propagat. Vol. 54, N.4, pp.1065 - 1073, April, 2006.

 

G. Marrocco, L. Mattioni, V. Martorelli, "Naval Structural Antenna Systems for Broadband HF Communications - Part II: Design Methodology for Real Naval Platforms", IEEE Trans. Antennas Propagat. Vol. 54, N.11, pp.3330 - 3337, Nov., 2006.

 

 

Antenna Co-location (2007)

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FIAT-IVECO VM-90 (2007)

 

Interference power at the VHF receiver’s channels f0+Df

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In Evidence

Antennas Over
                        Platforms

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