Abstract
A satellite system based on the frequency scanning concept has been recently assessed for L‐band land mobile communications. The study – promototed by ESA/ESTEC for an European application mission – has reached an advanced electrical design phase. The selected configuration is particularly advantageous in terms of Carrier‐to‐Intermodulation ratio (C/I) performance, which constitutes a requirement of key‐importance in the envisaged user applications. The advantage in C/I is due to the proper choice of the on‐board transmitter configuration, which adopts power module pairs where the overall power demand is evenly distributed. The consequent improved C/I is then achievable at both transmitter and radiated far field level. The present paper aims a contribution to the design methodology of frequency scanning satellite systems, by joining two key‐aspects: in fact an analytical approach is proposed to demonstrate the C/I advantage achievable through frequency scanning satellite systems and the methodology is applied to a concrete example, the ESA/ESTEC system, whose feasibility has been fully proved in previous studies. The analysis is performed both at transmitter level and in the far field. The main results achieved are hereinafter presented.
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References
F. Ananasso, D. Giancristofaro and M. Ruggieri, Design criteria for on-board transmitters in satellite communication systems, Space Communications 11(2) (1993) 85–96.
C. Cornacchini, R. Crescimbeni, A. d'Ippolito, P. Russo, A. Vernucci, M. Ruggieri and T. Jones, A comparative analysis of a frequency scanning and a multispot beam satellite systems for mobile communications, International Journal of Satellite Communications 13(2) (March-April 1995) 85–104.
S. Egami and M. Kawai, An adaptive multiple beam system concept, IEEE Journal on Selected Areas in Communications 5(4) (May 1987) 630–636.
Final Report on frequency scanning array for satellite communication, ESA/ESTEC Contract 9055/90/NL/RE (July 1992).
J.C. Fuenzalida et al., Time-domain analysis of intermodulation effects caused by non-linear amplifiers, COMSAT Tech. Rev. 3(1) (Spring 1973).
A. Iso et al., A highly efficient, S-band, 100–W linear GaAs FET power amplifier for mobile communications satellites, in: Proc. 41st IAF, Dresden (1990).
H.A. Rosen, Frequency addressable beams for satellite communications, in: Proc. Telecom, Geneva (1987).
P. Russo, A. d'Ippolito, M. Ruggieri, N. Volpicella, G. Scialino, S. Vatta and T. Jones, A frequency scanning satellite system for land mobile communications, International Journal of Satellite Communications 11(2) (March-April 1993) 87–103.
J.J. Splilker, Digital Communications by Satellite (Prentice-Hall, Englewood Cliffs, NJ, 1977).
J.D. Thompson, Frequency addressable beams for mobile communications, in: Proc. AIAA (1988) pp. 292–298.
A. Vernucci, C. Cornacchini, R. Crescimbeni and T. Jones, Comparative performance assessment of a mobile satellite communications system exploiting a frequency scanning satellite antenna, in: Proc. AIAA 15th ICSSC, San Diego (February 1994) pp. 60–65.
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Russo, P., d'Ippolito, A., Ferrarotti, A. et al. A C/I advantageous satellite system configuration for land mobile applications. Telecommunication Systems 8, 319–340 (1997). https://doi.org/10.1023/A:1019125924140
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DOI: https://doi.org/10.1023/A:1019125924140