The IRIDIUM main mission antenna concept

The design of a novel phase array panel that provides the L-band satellite to ground links for the IRIDIUM global communications system is presented. Key components and aspects of this phase array antenna are discussed including the beamforming architecture, radiated intermodulation products, the pa...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 1999-03, Vol.47 (3), p.416-424
Main Authors: Schuss, J.J., Upton, J., Myers, B., Sikina, T., Rohwer, A., Makridakas, P., Francois, R., Wardle, L., Smith, R.
Format: Article
Language:English
Subjects:
Antenna accessories
Antenna arrays
Antennas
Array signal processing
Arrays
Artificial satellites
Communication systems
Direct current
Energy consumption
Global communication
Intermodulation
Iridium network
L-band
Panels
Phased arrays
Power generation
Radiators
Radio frequency
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Description
Summary:The design of a novel phase array panel that provides the L-band satellite to ground links for the IRIDIUM global communications system is presented. Key components and aspects of this phase array antenna are discussed including the beamforming architecture, radiated intermodulation products, the patch radiators, and the T/R module. The strategy for minimizing DC power consumption over a large range of multicarrier RF output power is described. Finally, test results showing compliant array operation are summarized.
ISSN:0018-926X
1558-2221
DOI:10.1109/8.768775